gnulib: lib/fts.c annotate

annotate lib/fts.c @ 19584:4f93d7f4b6ae

fts: fix bug in find across filesystems This fixes a bug I introduced last summer. Problem reported by Kamil Dudka in: https://lists.gnu.org/r/bug-gnulib/2018-04/msg00033.html * lib/fts.c (filesystem_type, dirent_inode_sort_may_be_useful) (leaf_optimization): New arg for file descriptor. All callers changed. (fts_build): Check for whether inodes should be sorted before closing the directory.

author	Paul Eggert <eggert@cs.ucla.edu>
date	Wed, 11 Apr 2018 12:50:35 -0700
parents	1fa2f90267d3
children	359b539b5677

rev	line source
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1 /* Traverse a file hierarchy.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2
19484 10eb9086bea0 maint: Run 'make update-copyright' Paul Eggert <eggert@cs.ucla.edu> parents: 19192 diff changeset	3 Copyright (C) 2004-2018 Free Software Foundation, Inc.
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	4
9309 bbbbbf4cd1c5 Change copyright notice from GPLv2+ to GPLv3+. Bruno Haible <bruno@clisp.org> parents: 9129 diff changeset	5 This program is free software: you can redistribute it and/or modify
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	6 it under the terms of the GNU General Public License as published by
9309 bbbbbf4cd1c5 Change copyright notice from GPLv2+ to GPLv3+. Bruno Haible <bruno@clisp.org> parents: 9129 diff changeset	7 the Free Software Foundation; either version 3 of the License, or
bbbbbf4cd1c5 Change copyright notice from GPLv2+ to GPLv3+. Bruno Haible <bruno@clisp.org> parents: 9129 diff changeset	8 (at your option) any later version.
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	9
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	10 This program is distributed in the hope that it will be useful,
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	11 but WITHOUT ANY WARRANTY; without even the implied warranty of
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	13 GNU General Public License for more details.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	14
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	15 You should have received a copy of the GNU General Public License
19190 9759915b2aca all: prefer https: URLs Paul Eggert <eggert@cs.ucla.edu> parents: 19136 diff changeset	16 along with this program. If not, see <https://www.gnu.org/licenses/>. */
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	17
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	18 /*-
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	19 * Copyright (c) 1990, 1993, 1994
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	20 * The Regents of the University of California. All rights reserved.
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	21 *
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	22 * Redistribution and use in source and binary forms, with or without
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	23 * modification, are permitted provided that the following conditions
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	24 * are met:
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	25 * 1. Redistributions of source code must retain the above copyright
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	26 * notice, this list of conditions and the following disclaimer.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	27 * 2. Redistributions in binary form must reproduce the above copyright
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	28 * notice, this list of conditions and the following disclaimer in the
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	29 * documentation and/or other materials provided with the distribution.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	30 * 4. Neither the name of the University nor the names of its contributors
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	31 * may be used to endorse or promote products derived from this software
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	32 * without specific prior written permission.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	33 *
16235 18a38c9615f0 In commentary, do not use ` to quote. Paul Eggert <eggert@cs.ucla.edu> parents: 16201 diff changeset	34 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS" AND
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	35 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	36 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	37 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	38 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	39 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	40 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	41 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	42 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	43 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	44 * SUCH DAMAGE.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	45 */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	46
7302 8a1a9361108c * _fpending.c: Include <config.h> unconditionally, since we no Paul Eggert <eggert@cs.ucla.edu> parents: 7225 diff changeset	47 #include <config.h>
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	48
18325 33db65a13e67 Use GCC_LINT, not lint Paul Eggert <eggert@cs.ucla.edu> parents: 18216 diff changeset	49 #if defined LIBC_SCCS && !defined GCC_LINT && !defined lint
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	50 static char sccsid[] = "@(#)fts.c 8.6 (Berkeley) 8/14/94";
18325 33db65a13e67 Use GCC_LINT, not lint Paul Eggert <eggert@cs.ucla.edu> parents: 18216 diff changeset	51 #endif
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	52
5867 67b499052f7f * fts.c: Include fts_.h first, to check interface. Paul Eggert <eggert@cs.ucla.edu> parents: 5858 diff changeset	53 #include "fts_.h"
67b499052f7f * fts.c: Include fts_.h first, to check interface. Paul Eggert <eggert@cs.ucla.edu> parents: 5858 diff changeset	54
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	55 #if HAVE_SYS_PARAM_H \|\| defined _LIBC
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	56 # include <sys/param.h>
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	57 #endif
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	58 #ifdef _LIBC
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	59 # include <include/sys/stat.h>
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	60 #else
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	61 # include <sys/stat.h>
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	62 #endif
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	63 #include <fcntl.h>
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	64 #include <errno.h>
18026 1a086f523d28 fts: avoid reading beyond the heap allocation Pádraig Brady <P@draigBrady.com> parents: 17974 diff changeset	65 #include <stdalign.h>
5867 67b499052f7f * fts.c: Include fts_.h first, to check interface. Paul Eggert <eggert@cs.ucla.edu> parents: 5858 diff changeset	66 #include <stdbool.h>
18137 d76e9e9d345e fts: port to C11 alignof Paul Eggert <eggert@cs.ucla.edu> parents: 18026 diff changeset	67 #include <stddef.h>
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	68 #include <stdlib.h>
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	69 #include <string.h>
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	70 #include <unistd.h>
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	71
6034 96149b1bbb32 (fts_cross_check) [FTS_DEBUG]: s/active_dir_ht/fts_cycle.ht/. Jim Meyering <jim@meyering.net> parents: 5907 diff changeset	72 #if ! _LIBC
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	73 # include "fcntl--.h"
18403 4434607ac1ce flexmember: port better to GCC + valgrind Paul Eggert <eggert@cs.ucla.edu> parents: 18338 diff changeset	74 # include "flexmember.h"
11946 7604970d1a9f fts: fix compilation error Eric Blake <ebb9@byu.net> parents: 11940 diff changeset	75 # include "openat.h"
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	76 # include "same-inode.h"
6034 96149b1bbb32 (fts_cross_check) [FTS_DEBUG]: s/active_dir_ht/fts_cycle.ht/. Jim Meyering <jim@meyering.net> parents: 5907 diff changeset	77 #endif
96149b1bbb32 (fts_cross_check) [FTS_DEBUG]: s/active_dir_ht/fts_cycle.ht/. Jim Meyering <jim@meyering.net> parents: 5907 diff changeset	78
6949 96af1224c6fa * backupfile.c, dirfd.h, fts.c, getcwd.c, glob.c, glob_.h: Paul Eggert <eggert@cs.ucla.edu> parents: 6934 diff changeset	79 #include <dirent.h>
17642 8af917141d49 fts: avoid unnecessary strlen calls Eric Blake <eblake@redhat.com> parents: 17641 diff changeset	80 #ifndef _D_EXACT_NAMLEN
8af917141d49 fts: avoid unnecessary strlen calls Eric Blake <eblake@redhat.com> parents: 17641 diff changeset	81 # define _D_EXACT_NAMLEN(dirent) strlen ((dirent)->d_name)
8af917141d49 fts: avoid unnecessary strlen calls Eric Blake <eblake@redhat.com> parents: 17641 diff changeset	82 #endif
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	83
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	84 #if HAVE_STRUCT_DIRENT_D_TYPE
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	85 /* True if the type of the directory entry D is known. */
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	86 # define DT_IS_KNOWN(d) ((d)->d_type != DT_UNKNOWN)
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	87 /* True if the type of the directory entry D must be T. */
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	88 # define DT_MUST_BE(d, t) ((d)->d_type == (t))
10843 36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	89 # define D_TYPE(d) ((d)->d_type)
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	90 #else
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	91 # define DT_IS_KNOWN(d) false
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	92 # define DT_MUST_BE(d, t) false
10843 36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	93 # define D_TYPE(d) DT_UNKNOWN
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	94
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	95 # undef DT_UNKNOWN
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	96 # define DT_UNKNOWN 0
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	97
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	98 /* Any nonzero values will do here, so long as they're distinct.
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	99 Undef any existing macros out of the way. */
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	100 # undef DT_BLK
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	101 # undef DT_CHR
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	102 # undef DT_DIR
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	103 # undef DT_FIFO
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	104 # undef DT_LNK
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	105 # undef DT_REG
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	106 # undef DT_SOCK
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	107 # define DT_BLK 1
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	108 # define DT_CHR 2
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	109 # define DT_DIR 3
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	110 # define DT_FIFO 4
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	111 # define DT_LNK 5
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	112 # define DT_REG 6
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	113 # define DT_SOCK 7
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	114 #endif
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	115
10863 054d026819f0 work around mingw's lack of some S_IF definitions Jim Meyering <meyering@redhat.com> parents: 10844 diff changeset	116 #ifndef S_IFLNK
054d026819f0 work around mingw's lack of some S_IF definitions Jim Meyering <meyering@redhat.com> parents: 10844 diff changeset	117 # define S_IFLNK 0
054d026819f0 work around mingw's lack of some S_IF definitions Jim Meyering <meyering@redhat.com> parents: 10844 diff changeset	118 #endif
054d026819f0 work around mingw's lack of some S_IF definitions Jim Meyering <meyering@redhat.com> parents: 10844 diff changeset	119 #ifndef S_IFSOCK
054d026819f0 work around mingw's lack of some S_IF definitions Jim Meyering <meyering@redhat.com> parents: 10844 diff changeset	120 # define S_IFSOCK 0
054d026819f0 work around mingw's lack of some S_IF definitions Jim Meyering <meyering@redhat.com> parents: 10844 diff changeset	121 #endif
054d026819f0 work around mingw's lack of some S_IF definitions Jim Meyering <meyering@redhat.com> parents: 10844 diff changeset	122
10481 47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	123 enum
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	124 {
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	125 NOT_AN_INODE_NUMBER = 0
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	126 };
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	127
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	128 #ifdef D_INO_IN_DIRENT
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	129 # define D_INO(dp) (dp)->d_ino
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	130 #else
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	131 /* Some systems don't have inodes, so fake them to avoid lots of ifdefs. */
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	132 # define D_INO(dp) NOT_AN_INODE_NUMBER
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	133 #endif
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	134
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	135 /* If possible (see max_entries, below), read no more than this many directory
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	136 entries at a time. Without this limit (i.e., when using non-NULL
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	137 fts_compar), processing a directory with 4,000,000 entries requires ~1GiB
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	138 of memory, and handling 64M entries would require 16GiB of memory. */
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	139 #ifndef FTS_MAX_READDIR_ENTRIES
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	140 # define FTS_MAX_READDIR_ENTRIES 100000
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	141 #endif
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	142
10481 47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	143 /* If there are more than this many entries in a directory,
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	144 and the conditions mentioned below are satisfied, then sort
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	145 the entries on inode number before any further processing. */
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	146 #ifndef FTS_INODE_SORT_DIR_ENTRIES_THRESHOLD
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	147 # define FTS_INODE_SORT_DIR_ENTRIES_THRESHOLD 10000
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	148 #endif
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	149
10481 47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	150 enum
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	151 {
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	152 _FTS_INODE_SORT_DIR_ENTRIES_THRESHOLD = FTS_INODE_SORT_DIR_ENTRIES_THRESHOLD
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	153 };
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	154
7684 784e80c3d895 Work around a compile-time error from the HP-UX 11.00 /bin/cc. Jim Meyering <jim@meyering.net> parents: 7681 diff changeset	155 enum Fts_stat
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	156 {
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	157 FTS_NO_STAT_REQUIRED = 1,
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	158 FTS_STAT_REQUIRED = 2
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	159 };
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	160
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	161 #ifdef _LIBC
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	162 # undef close
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	163 # define close __close
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	164 # undef closedir
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	165 # define closedir __closedir
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	166 # undef fchdir
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	167 # define fchdir __fchdir
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	168 # undef open
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	169 # define open __open
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	170 # undef readdir
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	171 # define readdir __readdir
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	172 #else
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	173 # undef internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	174 # define internal_function /* empty */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	175 #endif
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	176
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	177 #ifndef __set_errno
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	178 # define __set_errno(Val) errno = (Val)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	179 #endif
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	180
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	181 /* If this host provides the openat function, then we can avoid
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	182 attempting to open "." in some initialization code below. */
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	183 #ifdef HAVE_OPENAT
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	184 # define HAVE_OPENAT_SUPPORT 1
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	185 #else
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	186 # define HAVE_OPENAT_SUPPORT 0
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	187 #endif
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	188
7785 3246679850d5 Slight readability improvement: use an assert-like macro Jim Meyering <jim@meyering.net> parents: 7707 diff changeset	189 #ifdef NDEBUG
17840 39c9960ea17b assure: new module Paul Eggert <eggert@cs.ucla.edu> parents: 17797 diff changeset	190 # define fts_assert(expr) ((void) (0 && (expr)))
7785 3246679850d5 Slight readability improvement: use an assert-like macro Jim Meyering <jim@meyering.net> parents: 7707 diff changeset	191 #else
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	192 # define fts_assert(expr) \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	193 do \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	194 { \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	195 if (!(expr)) \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	196 abort (); \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	197 } \
7785 3246679850d5 Slight readability improvement: use an assert-like macro Jim Meyering <jim@meyering.net> parents: 7707 diff changeset	198 while (false)
3246679850d5 Slight readability improvement: use an assert-like macro Jim Meyering <jim@meyering.net> parents: 7707 diff changeset	199 #endif
3246679850d5 Slight readability improvement: use an assert-like macro Jim Meyering <jim@meyering.net> parents: 7707 diff changeset	200
18930 50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	201 #ifndef FALLTHROUGH
50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	202 # if __GNUC__ < 7
50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	203 # define FALLTHROUGH ((void) 0)
50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	204 # else
50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	205 # define FALLTHROUGH __attribute__ ((__fallthrough__))
50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	206 # endif
50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	207 #endif
50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	208
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	209 static FTSENT fts_alloc (FTS , const char *, size_t) internal_function;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	210 static FTSENT fts_build (FTS , int) internal_function;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	211 static void fts_lfree (FTSENT *) internal_function;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	212 static void fts_load (FTS , FTSENT ) internal_function;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	213 static size_t fts_maxarglen (char * const *) internal_function;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	214 static void fts_padjust (FTS , FTSENT ) internal_function;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	215 static bool fts_palloc (FTS *, size_t) internal_function;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	216 static FTSENT fts_sort (FTS , FTSENT *, size_t) internal_function;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	217 static unsigned short int fts_stat (FTS , FTSENT , bool) internal_function;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	218 static int fts_safe_changedir (FTS , FTSENT , int, const char *)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	219 internal_function;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	220
13091 3af48780d248 Remove vestiges of fts-lgpl module. Bruno Haible <bruno@clisp.org> parents: 12772 diff changeset	221 #include "fts-cycle.c"
5872 fab6701e5cb2 New fts module. Paul Eggert <eggert@cs.ucla.edu> parents: 5867 diff changeset	222
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	223 #ifndef MAX
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	224 # define MAX(a,b) ((a) > (b) ? (a) : (b))
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	225 #endif
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	226
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	227 #ifndef SIZE_MAX
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	228 # define SIZE_MAX ((size_t) -1)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	229 #endif
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	230
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	231 #define ISDOT(a) (a[0] == '.' && (!a[1] \|\| (a[1] == '.' && !a[2])))
12772 2ea3e3fab7ee define STREQ(a,b) consistently, removing useless parentheses Jim Meyering <meyering@redhat.com> parents: 12559 diff changeset	232 #define STREQ(a, b) (strcmp (a, b) == 0)
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	233
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	234 #define CLR(opt) (sp->fts_options &= ~(opt))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	235 #define ISSET(opt) (sp->fts_options & (opt))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	236 #define SET(opt) (sp->fts_options \|= (opt))
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	237
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	238 /* FIXME: FTS_NOCHDIR is now misnamed.
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	239 Call it FTS_USE_FULL_RELATIVE_FILE_NAMES instead. */
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	240 #define FCHDIR(sp, fd) \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	241 (!ISSET(FTS_NOCHDIR) && (ISSET(FTS_CWDFD) \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	242 ? (cwd_advance_fd ((sp), (fd), true), 0) \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	243 : fchdir (fd)))
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	244
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	245
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	246 /* fts_build flags */
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	247 /* FIXME: make this an enum */
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	248 #define BCHILD 1 /* fts_children */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	249 #define BNAMES 2 /* fts_children, names only */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	250 #define BREAD 3 /* fts_read */
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	251
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	252 #if FTS_DEBUG
5894 d09af5fbd9f2 * modules/fts (Files): Remove m4/inttypes-pri.m4. Paul Eggert <eggert@cs.ucla.edu> parents: 5877 diff changeset	253 # include <inttypes.h>
d09af5fbd9f2 * modules/fts (Files): Remove m4/inttypes-pri.m4. Paul Eggert <eggert@cs.ucla.edu> parents: 5877 diff changeset	254 # include <stdint.h>
d09af5fbd9f2 * modules/fts (Files): Remove m4/inttypes-pri.m4. Paul Eggert <eggert@cs.ucla.edu> parents: 5877 diff changeset	255 # include <stdio.h>
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	256 # include "getcwdat.h"
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	257 bool fts_debug = false;
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	258 # define Dprintf(x) do { if (fts_debug) printf x; } while (false)
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	259 #else
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	260 # define Dprintf(x)
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	261 # define fd_ring_check(x)
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	262 # define fd_ring_print(a, b, c)
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	263 #endif
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	264
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	265 #define LEAVE_DIR(Fts, Ent, Tag) \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	266 do \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	267 { \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	268 Dprintf ((" %s-leaving: %s\n", Tag, (Ent)->fts_path)); \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	269 leave_dir (Fts, Ent); \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	270 fd_ring_check (Fts); \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	271 } \
5872 fab6701e5cb2 New fts module. Paul Eggert <eggert@cs.ucla.edu> parents: 5867 diff changeset	272 while (false)
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	273
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	274 static void
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	275 fd_ring_clear (I_ring *fd_ring)
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	276 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	277 while ( ! i_ring_empty (fd_ring))
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	278 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	279 int fd = i_ring_pop (fd_ring);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	280 if (0 <= fd)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	281 close (fd);
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	282 }
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	283 }
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	284
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	285 /* Overload the fts_statp->st_size member (otherwise unused, when
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	286 fts_info is FTS_NSOK) to indicate whether fts_read should stat
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	287 this entry or not. */
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	288 static void
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	289 fts_set_stat_required (FTSENT *p, bool required)
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	290 {
7785 3246679850d5 Slight readability improvement: use an assert-like macro Jim Meyering <jim@meyering.net> parents: 7707 diff changeset	291 fts_assert (p->fts_info == FTS_NSOK);
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	292 p->fts_statp->st_size = (required
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	293 ? FTS_STAT_REQUIRED
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	294 : FTS_NO_STAT_REQUIRED);
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	295 }
26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	296
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	297 /* file-descriptor-relative opendir. */
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	298 /* FIXME: if others need this function, move it into lib/openat.c */
17188 d7a44f0f7a15 ftruncate, fts, lstat, openat, raise: no 'static inline' Paul Eggert <eggert@cs.ucla.edu> parents: 17160 diff changeset	299 static DIR *
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	300 internal_function
13676 223800d7ac7d fts, getcwd, glob: audit for dirfd returning -1 Paul Eggert <eggert@cs.ucla.edu> parents: 13674 diff changeset	301 opendirat (int fd, char const dir, int extra_flags, int pdir_fd)
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	302 {
19047 f448a881990c fts: fix cloexec races Paul Eggert <eggert@cs.ucla.edu> parents: 19045 diff changeset	303 int open_flags = (O_RDONLY \| O_CLOEXEC \| O_DIRECTORY \| O_NOCTTY
f448a881990c fts: fix cloexec races Paul Eggert <eggert@cs.ucla.edu> parents: 19045 diff changeset	304 \| O_NONBLOCK \| extra_flags);
f448a881990c fts: fix cloexec races Paul Eggert <eggert@cs.ucla.edu> parents: 19045 diff changeset	305 int new_fd = openat (fd, dir, open_flags);
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	306 DIR *dirp;
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	307
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	308 if (new_fd < 0)
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	309 return NULL;
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	310 dirp = fdopendir (new_fd);
13676 223800d7ac7d fts, getcwd, glob: audit for dirfd returning -1 Paul Eggert <eggert@cs.ucla.edu> parents: 13674 diff changeset	311 if (dirp)
223800d7ac7d fts, getcwd, glob: audit for dirfd returning -1 Paul Eggert <eggert@cs.ucla.edu> parents: 13674 diff changeset	312 *pdir_fd = new_fd;
223800d7ac7d fts, getcwd, glob: audit for dirfd returning -1 Paul Eggert <eggert@cs.ucla.edu> parents: 13674 diff changeset	313 else
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	314 {
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	315 int saved_errno = errno;
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	316 close (new_fd);
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	317 errno = saved_errno;
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	318 }
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	319 return dirp;
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	320 }
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	321
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	322 /* Virtual fchdir. Advance SP's working directory file descriptor,
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	323 SP->fts_cwd_fd, to FD, and push the previous value onto the fd_ring.
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	324 CHDIR_DOWN_ONE is true if FD corresponds to an entry in the directory
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	325 open on sp->fts_cwd_fd; i.e., to move the working directory one level
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	326 down. */
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	327 static void
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	328 internal_function
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	329 cwd_advance_fd (FTS *sp, int fd, bool chdir_down_one)
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	330 {
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	331 int old = sp->fts_cwd_fd;
7785 3246679850d5 Slight readability improvement: use an assert-like macro Jim Meyering <jim@meyering.net> parents: 7707 diff changeset	332 fts_assert (old != fd \|\| old == AT_FDCWD);
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	333
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	334 if (chdir_down_one)
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	335 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	336 /* Push "old" onto the ring.
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	337 If the displaced file descriptor is non-negative, close it. */
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	338 int prev_fd_in_slot = i_ring_push (&sp->fts_fd_ring, old);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	339 fd_ring_print (sp, stderr, "post-push");
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	340 if (0 <= prev_fd_in_slot)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	341 close (prev_fd_in_slot); /* ignore any close failure */
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	342 }
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	343 else if ( ! ISSET (FTS_NOCHDIR))
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	344 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	345 if (0 <= old)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	346 close (old); /* ignore any close failure */
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	347 }
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	348
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	349 sp->fts_cwd_fd = fd;
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	350 }
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	351
15988 cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	352 /* Restore the initial, pre-traversal, "working directory".
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	353 In FTS_CWDFD mode, we merely call cwd_advance_fd, otherwise,
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	354 we may actually change the working directory.
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	355 Return 0 upon success. Upon failure, set errno and return nonzero. */
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	356 static int
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	357 restore_initial_cwd (FTS *sp)
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	358 {
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	359 int fail = FCHDIR (sp, ISSET (FTS_CWDFD) ? AT_FDCWD : sp->fts_rfd);
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	360 fd_ring_clear (&(sp->fts_fd_ring));
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	361 return fail;
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	362 }
cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	363
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	364 /* Open the directory DIR if possible, and return a file
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	365 descriptor. Return -1 and set errno on failure. It doesn't matter
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	366 whether the file descriptor has read or write access. */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	367
17188 d7a44f0f7a15 ftruncate, fts, lstat, openat, raise: no 'static inline' Paul Eggert <eggert@cs.ucla.edu> parents: 17160 diff changeset	368 static int
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	369 internal_function
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	370 diropen (FTS const sp, char const dir)
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	371 {
19047 f448a881990c fts: fix cloexec races Paul Eggert <eggert@cs.ucla.edu> parents: 19045 diff changeset	372 int open_flags = (O_SEARCH \| O_CLOEXEC \| O_DIRECTORY \| O_NOCTTY \| O_NONBLOCK
15374 04a9f678e342 fts: introduce FTS_NOATIME Eric Blake <eblake@redhat.com> parents: 14774 diff changeset	373 \| (ISSET (FTS_PHYSICAL) ? O_NOFOLLOW : 0)
04a9f678e342 fts: introduce FTS_NOATIME Eric Blake <eblake@redhat.com> parents: 14774 diff changeset	374 \| (ISSET (FTS_NOATIME) ? O_NOATIME : 0));
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	375
11940 6dd8c8815b1f fts: avoid leaking fds Eric Blake <ebb9@byu.net> parents: 11939 diff changeset	376 int fd = (ISSET (FTS_CWDFD)
6dd8c8815b1f fts: avoid leaking fds Eric Blake <ebb9@byu.net> parents: 11939 diff changeset	377 ? openat (sp->fts_cwd_fd, dir, open_flags)
6dd8c8815b1f fts: avoid leaking fds Eric Blake <ebb9@byu.net> parents: 11939 diff changeset	378 : open (dir, open_flags));
6dd8c8815b1f fts: avoid leaking fds Eric Blake <ebb9@byu.net> parents: 11939 diff changeset	379 return fd;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	380 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	381
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	382 FTS *
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	383 fts_open (char * const *argv,
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	384 register int options,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	385 int (compar) (FTSENT const , FTSENT const *))
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	386 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	387 register FTS *sp;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	388 register FTSENT p, root;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	389 register size_t nitems;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	390 FTSENT *parent = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	391 FTSENT tmp = NULL; / pacify gcc */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	392 bool defer_stat;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	393
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	394 /* Options check. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	395 if (options & ~FTS_OPTIONMASK) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	396 __set_errno (EINVAL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	397 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	398 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	399 if ((options & FTS_NOCHDIR) && (options & FTS_CWDFD)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	400 __set_errno (EINVAL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	401 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	402 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	403 if ( ! (options & (FTS_LOGICAL \| FTS_PHYSICAL))) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	404 __set_errno (EINVAL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	405 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	406 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	407
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	408 /* Allocate/initialize the stream */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	409 if ((sp = malloc(sizeof(FTS))) == NULL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	410 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	411 memset(sp, 0, sizeof(FTS));
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	412 sp->fts_compar = compar;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	413 sp->fts_options = options;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	414
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	415 /* Logical walks turn on NOCHDIR; symbolic links are too hard. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	416 if (ISSET(FTS_LOGICAL)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	417 SET(FTS_NOCHDIR);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	418 CLR(FTS_CWDFD);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	419 }
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	420
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	421 /* Initialize fts_cwd_fd. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	422 sp->fts_cwd_fd = AT_FDCWD;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	423 if ( ISSET(FTS_CWDFD) && ! HAVE_OPENAT_SUPPORT)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	424 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	425 /* While it isn't technically necessary to open "." this
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	426 early, doing it here saves us the trouble of ensuring
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	427 later (where it'd be messier) that "." can in fact
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	428 be opened. If not, revert to FTS_NOCHDIR mode. */
15374 04a9f678e342 fts: introduce FTS_NOATIME Eric Blake <eblake@redhat.com> parents: 14774 diff changeset	429 int fd = open (".",
04a9f678e342 fts: introduce FTS_NOATIME Eric Blake <eblake@redhat.com> parents: 14774 diff changeset	430 O_SEARCH \| (ISSET (FTS_NOATIME) ? O_NOATIME : 0));
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	431 if (fd < 0)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	432 {
16235 18a38c9615f0 In commentary, do not use ` to quote. Paul Eggert <eggert@cs.ucla.edu> parents: 16201 diff changeset	433 /* Even if "." is unreadable, don't revert to FTS_NOCHDIR mode
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	434 on systems like Linux+PROC_FS, where our openat emulation
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	435 is good enough. Note: on a system that emulates
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	436 openat via /proc, this technique can still fail, but
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	437 only in extreme conditions, e.g., when the working
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	438 directory cannot be saved (i.e. save_cwd fails) --
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	439 and that happens on Linux only when "." is unreadable
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	440 and the CWD would be longer than PATH_MAX.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	441 FIXME: once Linux kernel openat support is well established,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	442 replace the above open call and this entire if/else block
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	443 with the body of the if-block below. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	444 if ( openat_needs_fchdir ())
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	445 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	446 SET(FTS_NOCHDIR);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	447 CLR(FTS_CWDFD);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	448 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	449 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	450 else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	451 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	452 close (fd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	453 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	454 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	455
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	456 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	457 * Start out with 1K of file name space, and enough, in any case,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	458 * to hold the user's file names.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	459 */
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	460 #ifndef MAXPATHLEN
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	461 # define MAXPATHLEN 1024
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	462 #endif
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	463 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	464 size_t maxarglen = fts_maxarglen(argv);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	465 if (! fts_palloc(sp, MAX(maxarglen, MAXPATHLEN)))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	466 goto mem1;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	467 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	468
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	469 /* Allocate/initialize root's parent. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	470 if (*argv != NULL) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	471 if ((parent = fts_alloc(sp, "", 0)) == NULL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	472 goto mem2;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	473 parent->fts_level = FTS_ROOTPARENTLEVEL;
19008 a6fc0157c611 fts: nlink_t signedness fixups Paul Eggert <eggert@cs.ucla.edu> parents: 18930 diff changeset	474 parent->fts_n_dirs_remaining = -1;
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	475 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	476
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	477 /* The classic fts implementation would call fts_stat with
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	478 a new entry for each iteration of the loop below.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	479 If the comparison function is not specified or if the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	480 FTS_DEFER_STAT option is in effect, don't stat any entry
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	481 in this loop. This is an attempt to minimize the interval
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	482 between the initial stat/lstat/fstatat and the point at which
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	483 a directory argument is first opened. This matters for any
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	484 directory command line argument that resides on a file system
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	485 without genuine i-nodes. If you specify FTS_DEFER_STAT along
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	486 with a comparison function, that function must not access any
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	487 data via the fts_statp pointer. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	488 defer_stat = (compar == NULL \|\| ISSET(FTS_DEFER_STAT));
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	489
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	490 /* Allocate/initialize root(s). */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	491 for (root = NULL, nitems = 0; *argv != NULL; ++argv, ++nitems) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	492 /* Do allow zero-length file names. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	493 size_t len = strlen(*argv);
17074 d4ccb0388f18 fts: reduce two or more trailing slashes to just one, usually Jim Meyering <meyering@redhat.com> parents: 17073 diff changeset	494
17160 72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	495 if ( ! (options & FTS_VERBATIM))
72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	496 {
72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	497 /* If there are two or more trailing slashes, trim all but one,
72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	498 but don't change "//" to "/", and do map "///" to "/". */
72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	499 char const v = argv;
72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	500 if (2 < len && v[len - 1] == '/')
72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	501 while (1 < len && v[len - 2] == '/')
72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	502 --len;
72f4bab621be fts: introduce FTS_VERBATIM Dmitry V. Levin <ldv@altlinux.org> parents: 17074 diff changeset	503 }
17074 d4ccb0388f18 fts: reduce two or more trailing slashes to just one, usually Jim Meyering <meyering@redhat.com> parents: 17073 diff changeset	504
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	505 if ((p = fts_alloc(sp, *argv, len)) == NULL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	506 goto mem3;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	507 p->fts_level = FTS_ROOTLEVEL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	508 p->fts_parent = parent;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	509 p->fts_accpath = p->fts_name;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	510 /* Even when defer_stat is true, be sure to stat the first
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	511 command line argument, since fts_read (at least with
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	512 FTS_XDEV) requires that. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	513 if (defer_stat && root != NULL) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	514 p->fts_info = FTS_NSOK;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	515 fts_set_stat_required(p, true);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	516 } else {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	517 p->fts_info = fts_stat(sp, p, false);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	518 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	519
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	520 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	521 * If comparison routine supplied, traverse in sorted
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	522 * order; otherwise traverse in the order specified.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	523 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	524 if (compar) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	525 p->fts_link = root;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	526 root = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	527 } else {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	528 p->fts_link = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	529 if (root == NULL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	530 tmp = root = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	531 else {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	532 tmp->fts_link = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	533 tmp = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	534 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	535 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	536 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	537 if (compar && nitems > 1)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	538 root = fts_sort(sp, root, nitems);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	539
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	540 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	541 * Allocate a dummy pointer and make fts_read think that we've just
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	542 * finished the node before the root(s); set p->fts_info to FTS_INIT
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	543 * so that everything about the "current" node is ignored.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	544 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	545 if ((sp->fts_cur = fts_alloc(sp, "", 0)) == NULL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	546 goto mem3;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	547 sp->fts_cur->fts_link = root;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	548 sp->fts_cur->fts_info = FTS_INIT;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	549 if (! setup_dir (sp))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	550 goto mem3;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	551
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	552 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	553 * If using chdir(2), grab a file descriptor pointing to dot to ensure
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	554 * that we can get back here; this could be avoided for some file names,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	555 * but almost certainly not worth the effort. Slashes, symbolic links,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	556 * and ".." are all fairly nasty problems. Note, if we can't get the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	557 * descriptor we run anyway, just more slowly.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	558 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	559 if (!ISSET(FTS_NOCHDIR) && !ISSET(FTS_CWDFD)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	560 && (sp->fts_rfd = diropen (sp, ".")) < 0)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	561 SET(FTS_NOCHDIR);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	562
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	563 i_ring_init (&sp->fts_fd_ring, -1);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	564 return (sp);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	565
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	566 mem3: fts_lfree(root);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	567 free(parent);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	568 mem2: free(sp->fts_path);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	569 mem1: free(sp);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	570 return (NULL);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	571 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	572
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	573 static void
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	574 internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	575 fts_load (FTS sp, register FTSENT p)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	576 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	577 register size_t len;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	578 register char *cp;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	579
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	580 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	581 * Load the stream structure for the next traversal. Since we don't
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	582 * actually enter the directory until after the preorder visit, set
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	583 * the fts_accpath field specially so the chdir gets done to the right
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	584 * place and the user can access the first node. From fts_open it's
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	585 * known that the file name will fit.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	586 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	587 len = p->fts_pathlen = p->fts_namelen;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	588 memmove(sp->fts_path, p->fts_name, len + 1);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	589 if ((cp = strrchr(p->fts_name, '/')) && (cp != p->fts_name \|\| cp[1])) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	590 len = strlen(++cp);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	591 memmove(p->fts_name, cp, len + 1);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	592 p->fts_namelen = len;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	593 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	594 p->fts_accpath = p->fts_path = sp->fts_path;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	595 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	596
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	597 int
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	598 fts_close (FTS *sp)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	599 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	600 register FTSENT freep, p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	601 int saved_errno = 0;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	602
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	603 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	604 * This still works if we haven't read anything -- the dummy structure
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	605 * points to the root list, so we step through to the end of the root
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	606 * list which has a valid parent pointer.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	607 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	608 if (sp->fts_cur) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	609 for (p = sp->fts_cur; p->fts_level >= FTS_ROOTLEVEL;) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	610 freep = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	611 p = p->fts_link != NULL ? p->fts_link : p->fts_parent;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	612 free(freep);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	613 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	614 free(p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	615 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	616
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	617 /* Free up child linked list, sort array, file name buffer. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	618 if (sp->fts_child)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	619 fts_lfree(sp->fts_child);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	620 free(sp->fts_array);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	621 free(sp->fts_path);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	622
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	623 if (ISSET(FTS_CWDFD))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	624 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	625 if (0 <= sp->fts_cwd_fd)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	626 if (close (sp->fts_cwd_fd))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	627 saved_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	628 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	629 else if (!ISSET(FTS_NOCHDIR))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	630 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	631 /* Return to original directory, save errno if necessary. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	632 if (fchdir(sp->fts_rfd))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	633 saved_errno = errno;
11924 10d064d93551 fts: fts_close now fails also when closing a dir file descriptor fails Jim Meyering <meyering@redhat.com> parents: 11722 diff changeset	634
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	635 /* If close fails, record errno only if saved_errno is zero,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	636 so that we report the probably-more-meaningful fchdir errno. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	637 if (close (sp->fts_rfd))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	638 if (saved_errno == 0)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	639 saved_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	640 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	641
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	642 fd_ring_clear (&sp->fts_fd_ring);
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	643
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	644 if (sp->fts_leaf_optimization_works_ht)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	645 hash_free (sp->fts_leaf_optimization_works_ht);
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	646
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	647 free_dir (sp);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	648
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	649 /* Free up the stream pointer. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	650 free(sp);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	651
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	652 /* Set errno and return. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	653 if (saved_errno) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	654 __set_errno (saved_errno);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	655 return (-1);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	656 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	657
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	658 return (0);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	659 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	660
19009 7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	661 /* Minimum link count of a traditional Unix directory. When leaf
7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	662 optimization is OK and MIN_DIR_NLINK <= st_nlink, then st_nlink is
7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	663 an upper bound on the number of subdirectories (counting "." and
7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	664 ".."). */
7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	665 enum { MIN_DIR_NLINK = 2 };
7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	666
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	667 /* Whether leaf optimization is OK for a directory. */
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	668 enum leaf_optimization
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	669 {
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	670 /* st_nlink is not reliable for this directory's subdirectories. */
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	671 NO_LEAF_OPTIMIZATION,
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	672
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	673 /* Leaf optimization is OK, but is not useful for avoiding stat calls. */
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	674 OK_LEAF_OPTIMIZATION,
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	675
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	676 /* Leaf optimization is not only OK: it is useful for avoiding
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	677 stat calls, because dirent.d_type does not work. */
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	678 NOSTAT_LEAF_OPTIMIZATION
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	679 };
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	680
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	681 #if defined __linux__ \
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	682 && HAVE_SYS_VFS_H && HAVE_FSTATFS && HAVE_STRUCT_STATFS_F_TYPE
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	683
14379 2330aac2ae54 maint: adjust cpp indentation to reflect nesting depth Jim Meyering <meyering@redhat.com> parents: 14079 diff changeset	684 # include <sys/vfs.h>
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	685
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	686 /* Linux-specific constants from coreutils' src/fs.h */
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	687 # define S_MAGIC_AFS 0x5346414F
19580 1fa2f90267d3 fts: treat CIFS like NFS Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	688 # define S_MAGIC_CIFS 0xFF534D42
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	689 # define S_MAGIC_NFS 0x6969
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	690 # define S_MAGIC_PROC 0x9FA0
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	691 # define S_MAGIC_REISERFS 0x52654973
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	692 # define S_MAGIC_TMPFS 0x1021994
18179 4b6df746d1f3 fts: enable leaf optimization for XFS Pádraig Brady <P@draigBrady.com> parents: 18137 diff changeset	693 # define S_MAGIC_XFS 0x58465342
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	694
19045 bf63563adfd2 fts: port recent changes to CentOS 6 Paul Eggert <eggert@cs.ucla.edu> parents: 19027 diff changeset	695 # ifdef HAVE___FSWORD_T
bf63563adfd2 fts: port recent changes to CentOS 6 Paul Eggert <eggert@cs.ucla.edu> parents: 19027 diff changeset	696 typedef __fsword_t fsword;
bf63563adfd2 fts: port recent changes to CentOS 6 Paul Eggert <eggert@cs.ucla.edu> parents: 19027 diff changeset	697 # else
bf63563adfd2 fts: port recent changes to CentOS 6 Paul Eggert <eggert@cs.ucla.edu> parents: 19027 diff changeset	698 typedef long int fsword;
bf63563adfd2 fts: port recent changes to CentOS 6 Paul Eggert <eggert@cs.ucla.edu> parents: 19027 diff changeset	699 # endif
bf63563adfd2 fts: port recent changes to CentOS 6 Paul Eggert <eggert@cs.ucla.edu> parents: 19027 diff changeset	700
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	701 /* Map a stat.st_dev number to a file system type number f_ftype. */
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	702 struct dev_type
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	703 {
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	704 dev_t st_dev;
19045 bf63563adfd2 fts: port recent changes to CentOS 6 Paul Eggert <eggert@cs.ucla.edu> parents: 19027 diff changeset	705 fsword f_type;
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	706 };
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	707
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	708 /* Use a tiny initial size. If a traversal encounters more than
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	709 a few devices, the cost of growing/rehashing this table will be
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	710 rendered negligible by the number of inodes processed. */
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	711 enum { DEV_TYPE_HT_INITIAL_SIZE = 13 };
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	712
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	713 static size_t
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	714 dev_type_hash (void const *x, size_t table_size)
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	715 {
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	716 struct dev_type const *ax = x;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	717 uintmax_t dev = ax->st_dev;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	718 return dev % table_size;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	719 }
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	720
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	721 static bool
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	722 dev_type_compare (void const x, void const y)
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	723 {
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	724 struct dev_type const *ax = x;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	725 struct dev_type const *ay = y;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	726 return ax->st_dev == ay->st_dev;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	727 }
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	728
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	729 /* Return the file system type of P with file descriptor FD, or 0 if not known.
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	730 If FD is negative, P's file descriptor is unavailable.
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	731 Try to cache known values. */
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	732
19045 bf63563adfd2 fts: port recent changes to CentOS 6 Paul Eggert <eggert@cs.ucla.edu> parents: 19027 diff changeset	733 static fsword
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	734 filesystem_type (FTSENT const *p, int fd)
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	735 {
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	736 FTS *sp = p->fts_fts;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	737 Hash_table *h = sp->fts_leaf_optimization_works_ht;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	738 struct dev_type *ent;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	739 struct statfs fs_buf;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	740
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	741 /* If we're not in CWDFD mode, don't bother with this optimization,
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	742 since the caller is not serious about performance. */
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	743 if (!ISSET (FTS_CWDFD))
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	744 return 0;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	745
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	746 if (! h)
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	747 h = sp->fts_leaf_optimization_works_ht
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	748 = hash_initialize (DEV_TYPE_HT_INITIAL_SIZE, NULL, dev_type_hash,
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	749 dev_type_compare, free);
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	750 if (h)
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	751 {
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	752 struct dev_type tmp;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	753 tmp.st_dev = p->fts_statp->st_dev;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	754 ent = hash_lookup (h, &tmp);
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	755 if (ent)
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	756 return ent->f_type;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	757 }
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	758
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	759 /* Look-up failed. Query directly and cache the result. */
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	760 if (fd < 0 \|\| fstatfs (fd, &fs_buf) != 0)
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	761 return 0;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	762
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	763 if (h)
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	764 {
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	765 struct dev_type t2 = malloc (sizeof t2);
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	766 if (t2)
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	767 {
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	768 t2->st_dev = p->fts_statp->st_dev;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	769 t2->f_type = fs_buf.f_type;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	770
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	771 ent = hash_insert (h, t2);
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	772 if (ent)
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	773 fts_assert (ent == t2);
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	774 else
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	775 free (t2);
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	776 }
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	777 }
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	778
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	779 return fs_buf.f_type;
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	780 }
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	781
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	782 /* Return true if sorting dirents on inode numbers is known to improve
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	783 traversal performance for the directory P with descriptor DIR_FD.
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	784 Return false otherwise. When in doubt, return true.
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	785 DIR_FD is negative if unavailable. */
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	786 static bool
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	787 dirent_inode_sort_may_be_useful (FTSENT const *p, int dir_fd)
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	788 {
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	789 /* Skip the sort only if we can determine efficiently
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	790 that skipping it is the right thing to do.
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	791 The cost of performing an unnecessary sort is negligible,
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	792 while the cost of not performing it can be O(N^2) with
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	793 a very large constant. */
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	794
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	795 switch (filesystem_type (p, dir_fd))
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	796 {
19580 1fa2f90267d3 fts: treat CIFS like NFS Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	797 case S_MAGIC_CIFS:
1fa2f90267d3 fts: treat CIFS like NFS Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	798 case S_MAGIC_NFS:
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	799 case S_MAGIC_TMPFS:
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	800 /* On a file system of any of these types, sorting
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	801 is unnecessary, and hence wasteful. */
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	802 return false;
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	803
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	804 default:
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	805 return true;
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	806 }
f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	807 }
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	808
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	809 /* Given an FTS entry P for a directory with descriptor DIR_FD,
19009 7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	810 return true if it is both useful and valid to apply leaf optimization.
7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	811 The optimization is useful only for file systems that lack usable
7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	812 dirent.d_type info. The optimization is valid if an st_nlink value
7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	813 of at least MIN_DIR_NLINK is an upper bound on the number of
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	814 subdirectories of D, counting "." and ".." as subdirectories.
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	815 DIR_FD is negative if unavailable. */
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	816 static enum leaf_optimization
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	817 leaf_optimization (FTSENT const *p, int dir_fd)
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	818 {
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	819 switch (filesystem_type (p, dir_fd))
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	820 {
19136 504d2bd44d07 * lib/fts.c: Fix XFS comments. Paul Eggert <eggert@cs.ucla.edu> parents: 19047 diff changeset	821 /* List here the file system types that may lack usable dirent.d_type
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	822 info, yet for which the optimization does apply. */
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	823 case S_MAGIC_REISERFS:
19136 504d2bd44d07 * lib/fts.c: Fix XFS comments. Paul Eggert <eggert@cs.ucla.edu> parents: 19047 diff changeset	824 case S_MAGIC_XFS: /* XFS lacked it until 2013-08-22 commit. */
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	825 return NOSTAT_LEAF_OPTIMIZATION;
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	826
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	827 case 0:
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	828 /* Leaf optimization is unsafe if the file system type is unknown. */
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	829 FALLTHROUGH;
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	830 case S_MAGIC_AFS:
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	831 /* Although AFS mount points are not counted in st_nlink, they
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	832 act like directories. See <https://bugs.debian.org/143111>. */
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	833 FALLTHROUGH;
19580 1fa2f90267d3 fts: treat CIFS like NFS Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	834 case S_MAGIC_CIFS:
1fa2f90267d3 fts: treat CIFS like NFS Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	835 /* Leaf optimization causes 'find' to abort. See
1fa2f90267d3 fts: treat CIFS like NFS Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	836 <https://lists.gnu.org/r/bug-gnulib/2018-04/msg00015.html>. */
1fa2f90267d3 fts: treat CIFS like NFS Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	837 FALLTHROUGH;
18216 973834698be5 fts: don't unconditionally use leaf optimization for NFS Pádraig Brady <P@draigBrady.com> parents: 18189 diff changeset	838 case S_MAGIC_NFS:
973834698be5 fts: don't unconditionally use leaf optimization for NFS Pádraig Brady <P@draigBrady.com> parents: 18189 diff changeset	839 /* NFS provides usable dirent.d_type but not necessarily for all entries
973834698be5 fts: don't unconditionally use leaf optimization for NFS Pádraig Brady <P@draigBrady.com> parents: 18189 diff changeset	840 of large directories, so as per <https://bugzilla.redhat.com/1252549>
973834698be5 fts: don't unconditionally use leaf optimization for NFS Pádraig Brady <P@draigBrady.com> parents: 18189 diff changeset	841 NFS should return true. However st_nlink values are not accurate on
973834698be5 fts: don't unconditionally use leaf optimization for NFS Pádraig Brady <P@draigBrady.com> parents: 18189 diff changeset	842 all implementations as per <https://bugzilla.redhat.com/1299169>. */
18930 50d1e186bf78 fallthrough: update for GCC 7/8 Jim Meyering <meyering@fb.com> parents: 18626 diff changeset	843 FALLTHROUGH;
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	844 case S_MAGIC_PROC:
19192 d86e08b1f555 all: Replace many more http URLs by https URLs. Update stale URLs. Bruno Haible <bruno@clisp.org> parents: 19190 diff changeset	845 /* Per <https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=143111> /proc
d86e08b1f555 all: Replace many more http URLs by https URLs. Update stale URLs. Bruno Haible <bruno@clisp.org> parents: 19190 diff changeset	846 may have bogus stat.st_nlink values. */
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	847 return NO_LEAF_OPTIMIZATION;
c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	848
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	849 default:
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	850 return OK_LEAF_OPTIMIZATION;
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	851 }
90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	852 }
90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	853
11163 f448fc8fe832 fts: move a function definition "up" (no semantic change) Jim Meyering <meyering@redhat.com> parents: 11162 diff changeset	854 #else
12050 d1840b588599 fts: avoid compiler warning Eric Blake <ebb9@byu.net> parents: 11946 diff changeset	855 static bool
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	856 dirent_inode_sort_may_be_useful (FTSENT const *p _GL_UNUSED,
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	857 int dir_fd _GL_UNUSED)
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	858 {
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	859 return true;
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	860 }
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	861 static enum leaf_optimization
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	862 leaf_optimization (FTSENT const *p _GL_UNUSED, int dir_fd _GL_UNUSED)
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	863 {
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	864 return NO_LEAF_OPTIMIZATION;
19010 53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	865 }
53fb2576bf3c fts: cache dirent_inode_sort_may_be_useful too Paul Eggert <eggert@cs.ucla.edu> parents: 19009 diff changeset	866 #endif
11164 90715da41753 fts: arrange not to stat non-directories in more cases Jim Meyering <meyering@redhat.com> parents: 11163 diff changeset	867
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	868 /*
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	869 * Special case of "/" at the end of the file name so that slashes aren't
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	870 * appended which would cause file names to be written as "....//foo".
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	871 */
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	872 #define NAPPEND(p) \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	873 (p->fts_path[p->fts_pathlen - 1] == '/' \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	874 ? p->fts_pathlen - 1 : p->fts_pathlen)
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	875
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	876 FTSENT *
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	877 fts_read (register FTS *sp)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	878 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	879 register FTSENT p, tmp;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	880 register unsigned short int instr;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	881 register char *t;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	882
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	883 /* If finished or unrecoverable error, return NULL. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	884 if (sp->fts_cur == NULL \|\| ISSET(FTS_STOP))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	885 return (NULL);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	886
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	887 /* Set current node pointer. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	888 p = sp->fts_cur;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	889
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	890 /* Save and zero out user instructions. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	891 instr = p->fts_instr;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	892 p->fts_instr = FTS_NOINSTR;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	893
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	894 /* Any type of file may be re-visited; re-stat and re-turn. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	895 if (instr == FTS_AGAIN) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	896 p->fts_info = fts_stat(sp, p, false);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	897 return (p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	898 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	899 Dprintf (("fts_read: p=%s\n",
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	900 p->fts_info == FTS_INIT ? "" : p->fts_path));
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	901
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	902 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	903 * Following a symlink -- SLNONE test allows application to see
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	904 * SLNONE and recover. If indirecting through a symlink, have
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	905 * keep a pointer to current location. If unable to get that
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	906 * pointer, follow fails.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	907 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	908 if (instr == FTS_FOLLOW &&
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	909 (p->fts_info == FTS_SL \|\| p->fts_info == FTS_SLNONE)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	910 p->fts_info = fts_stat(sp, p, true);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	911 if (p->fts_info == FTS_D && !ISSET(FTS_NOCHDIR)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	912 if ((p->fts_symfd = diropen (sp, ".")) < 0) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	913 p->fts_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	914 p->fts_info = FTS_ERR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	915 } else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	916 p->fts_flags \|= FTS_SYMFOLLOW;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	917 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	918 goto check_for_dir;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	919 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	920
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	921 /* Directory in pre-order. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	922 if (p->fts_info == FTS_D) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	923 /* If skipped or crossed mount point, do post-order visit. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	924 if (instr == FTS_SKIP \|\|
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	925 (ISSET(FTS_XDEV) && p->fts_statp->st_dev != sp->fts_dev)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	926 if (p->fts_flags & FTS_SYMFOLLOW)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	927 (void)close(p->fts_symfd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	928 if (sp->fts_child) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	929 fts_lfree(sp->fts_child);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	930 sp->fts_child = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	931 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	932 p->fts_info = FTS_DP;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	933 LEAVE_DIR (sp, p, "1");
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	934 return (p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	935 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	936
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	937 /* Rebuild if only read the names and now traversing. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	938 if (sp->fts_child != NULL && ISSET(FTS_NAMEONLY)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	939 CLR(FTS_NAMEONLY);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	940 fts_lfree(sp->fts_child);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	941 sp->fts_child = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	942 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	943
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	944 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	945 * Cd to the subdirectory.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	946 *
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	947 * If have already read and now fail to chdir, whack the list
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	948 * to make the names come out right, and set the parent errno
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	949 * so the application will eventually get an error condition.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	950 * Set the FTS_DONTCHDIR flag so that when we logically change
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	951 * directories back to the parent we don't do a chdir.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	952 *
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	953 * If haven't read do so. If the read fails, fts_build sets
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	954 * FTS_STOP or the fts_info field of the node.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	955 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	956 if (sp->fts_child != NULL) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	957 if (fts_safe_changedir(sp, p, -1, p->fts_accpath)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	958 p->fts_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	959 p->fts_flags \|= FTS_DONTCHDIR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	960 for (p = sp->fts_child; p != NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	961 p = p->fts_link)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	962 p->fts_accpath =
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	963 p->fts_parent->fts_accpath;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	964 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	965 } else if ((sp->fts_child = fts_build(sp, BREAD)) == NULL) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	966 if (ISSET(FTS_STOP))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	967 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	968 /* If fts_build's call to fts_safe_changedir failed
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	969 because it was not able to fchdir into a
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	970 subdirectory, tell the caller. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	971 if (p->fts_errno && p->fts_info != FTS_DNR)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	972 p->fts_info = FTS_ERR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	973 LEAVE_DIR (sp, p, "2");
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	974 return (p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	975 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	976 p = sp->fts_child;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	977 sp->fts_child = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	978 goto name;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	979 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	980
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	981 /* Move to the next node on this level. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	982 next: tmp = p;
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	983
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	984 /* If we have so many directory entries that we're reading them
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	985 in batches, and we've reached the end of the current batch,
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	986 read in a new batch. */
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	987 if (p->fts_link == NULL && p->fts_parent->fts_dirp)
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	988 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	989 p = tmp->fts_parent;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	990 sp->fts_cur = p;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	991 sp->fts_path[p->fts_pathlen] = '\0';
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	992
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	993 if ((p = fts_build (sp, BREAD)) == NULL)
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	994 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	995 if (ISSET(FTS_STOP))
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	996 return NULL;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	997 goto cd_dot_dot;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	998 }
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	999
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1000 free(tmp);
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1001 goto name;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1002 }
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1003
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1004 if ((p = p->fts_link) != NULL) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1005 sp->fts_cur = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1006 free(tmp);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1007
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1008 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1009 * If reached the top, return to the original directory (or
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1010 * the root of the tree), and load the file names for the next
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1011 * root.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1012 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1013 if (p->fts_level == FTS_ROOTLEVEL) {
15988 cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	1014 if (restore_initial_cwd(sp)) {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1015 SET(FTS_STOP);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1016 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1017 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1018 free_dir(sp);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1019 fts_load(sp, p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1020 setup_dir(sp);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1021 goto check_for_dir;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1022 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1023
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1024 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1025 * User may have called fts_set on the node. If skipped,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1026 * ignore. If followed, get a file descriptor so we can
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1027 * get back if necessary.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1028 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1029 if (p->fts_instr == FTS_SKIP)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1030 goto next;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1031 if (p->fts_instr == FTS_FOLLOW) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1032 p->fts_info = fts_stat(sp, p, true);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1033 if (p->fts_info == FTS_D && !ISSET(FTS_NOCHDIR)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1034 if ((p->fts_symfd = diropen (sp, ".")) < 0) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1035 p->fts_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1036 p->fts_info = FTS_ERR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1037 } else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1038 p->fts_flags \|= FTS_SYMFOLLOW;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1039 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1040 p->fts_instr = FTS_NOINSTR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1041 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1042
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1043 name: t = sp->fts_path + NAPPEND(p->fts_parent);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1044 *t++ = '/';
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1045 memmove(t, p->fts_name, p->fts_namelen + 1);
5872 fab6701e5cb2 New fts module. Paul Eggert <eggert@cs.ucla.edu> parents: 5867 diff changeset	1046 check_for_dir:
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1047 sp->fts_cur = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1048 if (p->fts_info == FTS_NSOK)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1049 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1050 if (p->fts_statp->st_size == FTS_STAT_REQUIRED)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1051 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1052 FTSENT *parent = p->fts_parent;
19008 a6fc0157c611 fts: nlink_t signedness fixups Paul Eggert <eggert@cs.ucla.edu> parents: 18930 diff changeset	1053 if (parent->fts_n_dirs_remaining == 0
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1054 && ISSET(FTS_NOSTAT)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1055 && ISSET(FTS_PHYSICAL)
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1056 && (leaf_optimization (parent, sp->fts_cwd_fd)
19011 c152c191727b fts: three levels of leaf optimization Paul Eggert <eggert@cs.ucla.edu> parents: 19010 diff changeset	1057 == NOSTAT_LEAF_OPTIMIZATION))
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1058 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1059 /* nothing more needed */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1060 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1061 else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1062 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1063 p->fts_info = fts_stat(sp, p, false);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1064 if (S_ISDIR(p->fts_statp->st_mode)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1065 && p->fts_level != FTS_ROOTLEVEL
19008 a6fc0157c611 fts: nlink_t signedness fixups Paul Eggert <eggert@cs.ucla.edu> parents: 18930 diff changeset	1066 && 0 < parent->fts_n_dirs_remaining
a6fc0157c611 fts: nlink_t signedness fixups Paul Eggert <eggert@cs.ucla.edu> parents: 18930 diff changeset	1067 && parent->fts_n_dirs_remaining != (nlink_t) -1)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1068 parent->fts_n_dirs_remaining--;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1069 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1070 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1071 else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1072 fts_assert (p->fts_statp->st_size == FTS_NO_STAT_REQUIRED);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1073 }
7707 3f57a32346a2 * lib/fts.c (fts_load): Don't set sp->fts_dev here, since Jim Meyering <jim@meyering.net> parents: 7684 diff changeset	1074
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1075 if (p->fts_info == FTS_D)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1076 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1077 /* Now that P->fts_statp is guaranteed to be valid,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1078 if this is a command-line directory, record its
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1079 device number, to be used for FTS_XDEV. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1080 if (p->fts_level == FTS_ROOTLEVEL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1081 sp->fts_dev = p->fts_statp->st_dev;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1082 Dprintf ((" entering: %s\n", p->fts_path));
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1083 if (! enter_dir (sp, p))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1084 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1085 __set_errno (ENOMEM);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1086 return NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1087 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1088 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1089 return p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1090 }
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1091 cd_dot_dot:
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1092
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1093 /* Move up to the parent node. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1094 p = tmp->fts_parent;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1095 sp->fts_cur = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1096 free(tmp);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1097
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1098 if (p->fts_level == FTS_ROOTPARENTLEVEL) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1099 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1100 * Done; free everything up and set errno to 0 so the user
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1101 * can distinguish between error and EOF.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1102 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1103 free(p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1104 __set_errno (0);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1105 return (sp->fts_cur = NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1106 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1107
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1108 fts_assert (p->fts_info != FTS_NSOK);
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	1109
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1110 /* NUL terminate the file name. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1111 sp->fts_path[p->fts_pathlen] = '\0';
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1112
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1113 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1114 * Return to the parent directory. If at a root node, restore
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1115 * the initial working directory. If we came through a symlink,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1116 * go back through the file descriptor. Otherwise, move up
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1117 * one level, via "..".
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1118 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1119 if (p->fts_level == FTS_ROOTLEVEL) {
15988 cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	1120 if (restore_initial_cwd(sp)) {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1121 p->fts_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1122 SET(FTS_STOP);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1123 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1124 } else if (p->fts_flags & FTS_SYMFOLLOW) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1125 if (FCHDIR(sp, p->fts_symfd)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1126 p->fts_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1127 SET(FTS_STOP);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1128 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1129 (void)close(p->fts_symfd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1130 } else if (!(p->fts_flags & FTS_DONTCHDIR) &&
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1131 fts_safe_changedir(sp, p->fts_parent, -1, "..")) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1132 p->fts_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1133 SET(FTS_STOP);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1134 }
17914 644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1135
644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1136 /* If the directory causes a cycle, preserve the FTS_DC flag and keep
644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1137 the corresponding dev/ino pair in the hash table. It is going to be
644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1138 removed when leaving the original directory. */
644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1139 if (p->fts_info != FTS_DC) {
644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1140 p->fts_info = p->fts_errno ? FTS_ERR : FTS_DP;
644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1141 if (p->fts_errno == 0)
644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1142 LEAVE_DIR (sp, p, "3");
644307da6af9 fts: avoid crash when a cycle is added while traversing Kamil Dudka <kdudka@redhat.com> parents: 17848 diff changeset	1143 }
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1144 return ISSET(FTS_STOP) ? NULL : p;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1145 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1146
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1147 /*
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1148 * Fts_set takes the stream as an argument although it's not used in this
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1149 * implementation; it would be necessary if anyone wanted to add global
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1150 * semantics to fts using fts_set. An error return is allowed for similar
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1151 * reasons.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1152 */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1153 /* ARGSUSED */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1154 int
12482 11bc92a9e2bc gnulib-common: prefer _GL_UNUSED over _UNUSED_PARAMETER_ Eric Blake <ebb9@byu.net> parents: 12421 diff changeset	1155 fts_set(FTS sp _GL_UNUSED, FTSENT p, int instr)
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1156 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1157 if (instr != 0 && instr != FTS_AGAIN && instr != FTS_FOLLOW &&
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1158 instr != FTS_NOINSTR && instr != FTS_SKIP) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1159 __set_errno (EINVAL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1160 return (1);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1161 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1162 p->fts_instr = instr;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1163 return (0);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1164 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1165
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1166 FTSENT *
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1167 fts_children (register FTS *sp, int instr)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1168 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1169 register FTSENT *p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1170 int fd;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1171
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1172 if (instr != 0 && instr != FTS_NAMEONLY) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1173 __set_errno (EINVAL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1174 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1175 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1176
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1177 /* Set current node pointer. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1178 p = sp->fts_cur;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1179
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1180 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1181 * Errno set to 0 so user can distinguish empty directory from
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1182 * an error.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1183 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1184 __set_errno (0);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1185
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1186 /* Fatal errors stop here. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1187 if (ISSET(FTS_STOP))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1188 return (NULL);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1189
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1190 /* Return logical hierarchy of user's arguments. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1191 if (p->fts_info == FTS_INIT)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1192 return (p->fts_link);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1193
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1194 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1195 * If not a directory being visited in pre-order, stop here. Could
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1196 * allow FTS_DNR, assuming the user has fixed the problem, but the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1197 * same effect is available with FTS_AGAIN.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1198 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1199 if (p->fts_info != FTS_D /* && p->fts_info != FTS_DNR */)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1200 return (NULL);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1201
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1202 /* Free up any previous child list. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1203 if (sp->fts_child != NULL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1204 fts_lfree(sp->fts_child);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1205
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1206 if (instr == FTS_NAMEONLY) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1207 SET(FTS_NAMEONLY);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1208 instr = BNAMES;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1209 } else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1210 instr = BCHILD;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1211
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1212 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1213 * If using chdir on a relative file name and called BEFORE fts_read
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1214 * does its chdir to the root of a traversal, we can lose -- we need to
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1215 * chdir into the subdirectory, and we don't know where the current
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1216 * directory is, so we can't get back so that the upcoming chdir by
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1217 * fts_read will work.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1218 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1219 if (p->fts_level != FTS_ROOTLEVEL \|\| p->fts_accpath[0] == '/' \|\|
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1220 ISSET(FTS_NOCHDIR))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1221 return (sp->fts_child = fts_build(sp, instr));
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1222
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1223 if ((fd = diropen (sp, ".")) < 0)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1224 return (sp->fts_child = NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1225 sp->fts_child = fts_build(sp, instr);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1226 if (ISSET(FTS_CWDFD))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1227 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1228 cwd_advance_fd (sp, fd, true);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1229 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1230 else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1231 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1232 if (fchdir(fd))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1233 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1234 int saved_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1235 close (fd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1236 __set_errno (saved_errno);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1237 return NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1238 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1239 close (fd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1240 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1241 return (sp->fts_child);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1242 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1243
10481 47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1244 /* A comparison function to sort on increasing inode number.
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1245 For some file system types, sorting either way makes a huge
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1246 performance difference for a directory with very many entries,
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1247 but sorting on increasing values is slightly better than sorting
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1248 on decreasing values. The difference is in the 5% range. */
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1249 static int
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1250 fts_compare_ino (struct _ftsent const a, struct _ftsent const b)
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1251 {
10482 e8d1a5b2c49c fts: tweak inode comparison function Jim Meyering <meyering@redhat.com> parents: 10481 diff changeset	1252 return (a[0]->fts_statp->st_ino < b[0]->fts_statp->st_ino ? -1
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1253 : b[0]->fts_statp->st_ino < a[0]->fts_statp->st_ino ? 1 : 0);
10481 47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1254 }
47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1255
10843 36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1256 /* Map the dirent.d_type value, DTYPE, to the corresponding stat.st_mode
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1257 S_IF* bit and set ST.st_mode, thus clearing all other bits in that field. */
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1258 static void
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1259 set_stat_type (struct stat *st, unsigned int dtype)
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1260 {
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1261 mode_t type;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1262 switch (dtype)
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1263 {
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1264 case DT_BLK:
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1265 type = S_IFBLK;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1266 break;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1267 case DT_CHR:
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1268 type = S_IFCHR;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1269 break;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1270 case DT_DIR:
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1271 type = S_IFDIR;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1272 break;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1273 case DT_FIFO:
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1274 type = S_IFIFO;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1275 break;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1276 case DT_LNK:
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1277 type = S_IFLNK;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1278 break;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1279 case DT_REG:
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1280 type = S_IFREG;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1281 break;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1282 case DT_SOCK:
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1283 type = S_IFSOCK;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1284 break;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1285 default:
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1286 type = 0;
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1287 }
10844 70fc7855343a fts: fix a thinko Jim Meyering <meyering@redhat.com> parents: 10843 diff changeset	1288 st->st_mode = type;
10843 36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1289 }
36479bd141ee fts: provide dirent.d_type via FTSENT.fts_statp, when possible Jim Meyering <meyering@redhat.com> parents: 10688 diff changeset	1290
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1291 #define closedir_and_clear(dirp) \
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1292 do \
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1293 { \
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1294 closedir (dirp); \
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1295 dirp = NULL; \
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1296 } \
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1297 while (0)
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1298
15528 8203b056cc79 maint: fts: give __opendir2 a new parameter and rename Jim Meyering <meyering@redhat.com> parents: 15527 diff changeset	1299 #define fts_opendir(file, Pdir_fd) \
15525 792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1300 opendirat((! ISSET(FTS_NOCHDIR) && ISSET(FTS_CWDFD) \
792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1301 ? sp->fts_cwd_fd : AT_FDCWD), \
792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1302 file, \
792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1303 (((ISSET(FTS_PHYSICAL) \
792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1304 && ! (ISSET(FTS_COMFOLLOW) \
792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1305 && cur->fts_level == FTS_ROOTLEVEL)) \
792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1306 ? O_NOFOLLOW : 0) \
792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1307 \| (ISSET (FTS_NOATIME) ? O_NOATIME : 0)), \
15528 8203b056cc79 maint: fts: give __opendir2 a new parameter and rename Jim Meyering <meyering@redhat.com> parents: 15527 diff changeset	1308 Pdir_fd)
15525 792927a7e09d maint: fts.c: move __opendir2 #define "up" out of function body Jim Meyering <meyering@redhat.com> parents: 15524 diff changeset	1309
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1310 /*
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1311 * This is the tricky part -- do not casually change anything in here. The
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1312 * idea is to build the linked list of entries that are used by fts_children
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1313 * and fts_read. There are lots of special cases.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1314 *
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1315 * The real slowdown in walking the tree is the stat calls. If FTS_NOSTAT is
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1316 * set and it's a physical walk (so that symbolic links can't be directories),
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1317 * we can do things quickly. First, if it's a 4.4BSD file system, the type
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1318 * of the file is in the directory entry. Otherwise, we assume that the number
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1319 * of subdirectories in a node is equal to the number of links to the parent.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1320 * The former skips all stat calls. The latter skips stat calls in any leaf
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1321 * directories and for any files after the subdirectories in the directory have
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1322 * been found, cutting the stat calls by about 2/3.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1323 */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1324 static FTSENT *
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1325 internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1326 fts_build (register FTS *sp, int type)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1327 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1328 register FTSENT p, head;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1329 register size_t nitems;
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1330 FTSENT *tail;
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1331 void *oldaddr;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1332 int saved_errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1333 bool descend;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1334 bool doadjust;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1335 ptrdiff_t level;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1336 size_t len, maxlen, new_len;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1337 char *cp;
13676 223800d7ac7d fts, getcwd, glob: audit for dirfd returning -1 Paul Eggert <eggert@cs.ucla.edu> parents: 13674 diff changeset	1338 int dir_fd;
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1339 FTSENT *cur = sp->fts_cur;
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1340 bool continue_readdir = !!cur->fts_dirp;
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1341 bool sort_by_inode = false;
17797 dffad0ca4bc1 fts: port to C89 Paul Eggert <eggert@cs.ucla.edu> parents: 17642 diff changeset	1342 size_t max_entries;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1343
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1344 /* When cur->fts_dirp is non-NULL, that means we should
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1345 continue calling readdir on that existing DIR* pointer
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1346 rather than opening a new one. */
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1347 if (continue_readdir)
15526 95cf436ab3b8 maint: fts.c: correct off-by-one indentation Jim Meyering <meyering@redhat.com> parents: 15525 diff changeset	1348 {
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1349 DIR *dp = cur->fts_dirp;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1350 dir_fd = dirfd (dp);
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1351 if (dir_fd < 0)
15526 95cf436ab3b8 maint: fts.c: correct off-by-one indentation Jim Meyering <meyering@redhat.com> parents: 15525 diff changeset	1352 {
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1353 closedir_and_clear (cur->fts_dirp);
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1354 if (type == BREAD)
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1355 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1356 cur->fts_info = FTS_DNR;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1357 cur->fts_errno = errno;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1358 }
15526 95cf436ab3b8 maint: fts.c: correct off-by-one indentation Jim Meyering <meyering@redhat.com> parents: 15525 diff changeset	1359 return NULL;
95cf436ab3b8 maint: fts.c: correct off-by-one indentation Jim Meyering <meyering@redhat.com> parents: 15525 diff changeset	1360 }
95cf436ab3b8 maint: fts.c: correct off-by-one indentation Jim Meyering <meyering@redhat.com> parents: 15525 diff changeset	1361 }
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1362 else
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1363 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1364 /* Open the directory for reading. If this fails, we're done.
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1365 If being called from fts_read, set the fts_info field. */
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1366 if ((cur->fts_dirp = fts_opendir(cur->fts_accpath, &dir_fd)) == NULL)
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1367 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1368 if (type == BREAD)
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1369 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1370 cur->fts_info = FTS_DNR;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1371 cur->fts_errno = errno;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1372 }
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1373 return NULL;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1374 }
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1375 /* Rather than calling fts_stat for each and every entry encountered
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1376 in the readdir loop (below), stat each directory only right after
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1377 opening it. */
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1378 if (cur->fts_info == FTS_NSOK)
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1379 cur->fts_info = fts_stat(sp, cur, false);
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1380 else if (sp->fts_options & FTS_TIGHT_CYCLE_CHECK)
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1381 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1382 /* Now read the stat info again after opening a directory to
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1383 reveal eventual changes caused by a submount triggered by
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1384 the traversal. But do it only for utilities which use
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1385 FTS_TIGHT_CYCLE_CHECK. Therefore, only find and du
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1386 benefit/suffer from this feature for now. */
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1387 LEAVE_DIR (sp, cur, "4");
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1388 fts_stat (sp, cur, false);
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1389 if (! enter_dir (sp, cur))
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1390 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1391 __set_errno (ENOMEM);
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1392 return NULL;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1393 }
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1394 }
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1395 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1396
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1397 /* Maximum number of readdir entries to read at one time. This
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1398 limitation is to avoid reading millions of entries into memory
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1399 at once. When an fts_compar function is specified, we have no
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1400 choice: we must read all entries into memory before calling that
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1401 function. But when no such function is specified, we can read
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1402 entries in batches that are large enough to help us with inode-
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1403 sorting, yet not so large that we risk exhausting memory. */
17797 dffad0ca4bc1 fts: port to C89 Paul Eggert <eggert@cs.ucla.edu> parents: 17642 diff changeset	1404 max_entries = sp->fts_compar ? SIZE_MAX : FTS_MAX_READDIR_ENTRIES;
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1405
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1406 /*
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1407 * If we're going to need to stat anything or we want to descend
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1408 * and stay in the directory, chdir. If this fails we keep going,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1409 * but set a flag so we don't chdir after the post-order visit.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1410 * We won't be able to stat anything, but we can still return the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1411 * names themselves. Note, that since fts_read won't be able to
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1412 * chdir into the directory, it will have to return different file
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1413 * names than before, i.e. "a/b" instead of "b". Since the node
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1414 * has already been visited in pre-order, have to wait until the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1415 * post-order visit to return the error. There is a special case
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1416 * here, if there was nothing to stat then it's not an error to
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1417 * not be able to stat. This is all fairly nasty. If a program
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1418 * needed sorted entries or stat information, they had better be
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1419 * checking FTS_NS on the returned nodes.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1420 */
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1421 if (continue_readdir)
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1422 {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1423 /* When resuming a short readdir run, we already have
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1424 the required dirp and dir_fd. */
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1425 descend = true;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1426 }
19012 31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1427 else
31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1428 {
31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1429 /* Try to descend unless it is a names-only fts_children,
19136 504d2bd44d07 * lib/fts.c: Fix XFS comments. Paul Eggert <eggert@cs.ucla.edu> parents: 19047 diff changeset	1430 or the directory is known to lack subdirectories. */
19012 31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1431 descend = (type != BNAMES
31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1432 && ! (ISSET (FTS_NOSTAT) && ISSET (FTS_PHYSICAL)
31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1433 && ! ISSET (FTS_SEEDOT)
31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1434 && cur->fts_statp->st_nlink == MIN_DIR_NLINK
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1435 && (leaf_optimization (cur, dir_fd)
19012 31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1436 != NO_LEAF_OPTIMIZATION)));
31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1437 if (descend \|\| type == BREAD)
31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1438 {
13676 223800d7ac7d fts, getcwd, glob: audit for dirfd returning -1 Paul Eggert <eggert@cs.ucla.edu> parents: 13674 diff changeset	1439 if (ISSET(FTS_CWDFD))
19047 f448a881990c fts: fix cloexec races Paul Eggert <eggert@cs.ucla.edu> parents: 19045 diff changeset	1440 dir_fd = fcntl (dir_fd, F_DUPFD_CLOEXEC, STDERR_FILENO + 1);
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1441 if (dir_fd < 0 \|\| fts_safe_changedir(sp, cur, dir_fd, NULL)) {
19012 31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1442 if (descend && type == BREAD)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1443 cur->fts_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1444 cur->fts_flags \|= FTS_DONTCHDIR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1445 descend = false;
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1446 closedir_and_clear(cur->fts_dirp);
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1447 if (ISSET(FTS_CWDFD) && 0 <= dir_fd)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1448 close (dir_fd);
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1449 cur->fts_dirp = NULL;
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1450 } else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1451 descend = true;
19012 31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1452 }
31435c0b245d fts: simplify fts_build Paul Eggert <eggert@cs.ucla.edu> parents: 19011 diff changeset	1453 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1454
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1455 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1456 * Figure out the max file name length that can be stored in the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1457 * current buffer -- the inner loop allocates more space as necessary.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1458 * We really wouldn't have to do the maxlen calculations here, we
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1459 * could do them in fts_read before returning the name, but it's a
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1460 * lot easier here since the length is part of the dirent structure.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1461 *
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1462 * If not changing directories set a pointer so that can just append
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1463 * each new component into the file name.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1464 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1465 len = NAPPEND(cur);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1466 if (ISSET(FTS_NOCHDIR)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1467 cp = sp->fts_path + len;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1468 *cp++ = '/';
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1469 } else {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1470 /* GCC, you're too verbose. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1471 cp = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1472 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1473 len++;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1474 maxlen = sp->fts_pathlen - len;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1475
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1476 level = cur->fts_level + 1;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1477
16235 18a38c9615f0 In commentary, do not use ` to quote. Paul Eggert <eggert@cs.ucla.edu> parents: 16201 diff changeset	1478 /* Read the directory, attaching each entry to the "link" pointer. */
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1479 doadjust = false;
15530 ddc76c261e25 maint: fts: move decl of `dp' down into while loop; split a long line Jim Meyering <meyering@redhat.com> parents: 15529 diff changeset	1480 head = NULL;
ddc76c261e25 maint: fts: move decl of `dp' down into while loop; split a long line Jim Meyering <meyering@redhat.com> parents: 15529 diff changeset	1481 tail = NULL;
ddc76c261e25 maint: fts: move decl of `dp' down into while loop; split a long line Jim Meyering <meyering@redhat.com> parents: 15529 diff changeset	1482 nitems = 0;
ddc76c261e25 maint: fts: move decl of `dp' down into while loop; split a long line Jim Meyering <meyering@redhat.com> parents: 15529 diff changeset	1483 while (cur->fts_dirp) {
17640 aa5bda4ec2ae fts: avoid unnecessary strlen calls Bernhard Voelker <mail@bernhard-voelker.de> parents: 17576 diff changeset	1484 size_t d_namelen;
18338 7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1485 __set_errno (0);
15530 ddc76c261e25 maint: fts: move decl of `dp' down into while loop; split a long line Jim Meyering <meyering@redhat.com> parents: 15529 diff changeset	1486 struct dirent *dp = readdir(cur->fts_dirp);
18338 7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1487 if (dp == NULL) {
7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1488 if (errno) {
7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1489 cur->fts_errno = errno;
7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1490 /* If we've not read any items yet, treat
7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1491 the error as if we can't access the dir. */
7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1492 cur->fts_info = (continue_readdir \|\| nitems)
7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1493 ? FTS_ERR : FTS_DNR;
7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1494 }
15530 ddc76c261e25 maint: fts: move decl of `dp' down into while loop; split a long line Jim Meyering <meyering@redhat.com> parents: 15529 diff changeset	1495 break;
18338 7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1496 }
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1497 if (!ISSET(FTS_SEEDOT) && ISDOT(dp->d_name))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1498 continue;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1499
17641 019200939aa7 fts: avoid unnecessary strlen calls Paul Eggert <eggert@cs.ucla.edu> parents: 17640 diff changeset	1500 d_namelen = _D_EXACT_NAMLEN (dp);
019200939aa7 fts: avoid unnecessary strlen calls Paul Eggert <eggert@cs.ucla.edu> parents: 17640 diff changeset	1501 p = fts_alloc (sp, dp->d_name, d_namelen);
019200939aa7 fts: avoid unnecessary strlen calls Paul Eggert <eggert@cs.ucla.edu> parents: 17640 diff changeset	1502 if (!p)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1503 goto mem1;
17640 aa5bda4ec2ae fts: avoid unnecessary strlen calls Bernhard Voelker <mail@bernhard-voelker.de> parents: 17576 diff changeset	1504 if (d_namelen >= maxlen) {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1505 /* include space for NUL */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1506 oldaddr = sp->fts_path;
17640 aa5bda4ec2ae fts: avoid unnecessary strlen calls Bernhard Voelker <mail@bernhard-voelker.de> parents: 17576 diff changeset	1507 if (! fts_palloc(sp, d_namelen + len + 1)) {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1508 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1509 * No more memory. Save
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1510 * errno, free up the current structure and the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1511 * structures already allocated.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1512 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1513 mem1: saved_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1514 free(p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1515 fts_lfree(head);
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1516 closedir_and_clear(cur->fts_dirp);
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1517 cur->fts_info = FTS_ERR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1518 SET(FTS_STOP);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1519 __set_errno (saved_errno);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1520 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1521 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1522 /* Did realloc() change the pointer? */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1523 if (oldaddr != sp->fts_path) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1524 doadjust = true;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1525 if (ISSET(FTS_NOCHDIR))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1526 cp = sp->fts_path + len;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1527 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1528 maxlen = sp->fts_pathlen - len;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1529 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1530
17640 aa5bda4ec2ae fts: avoid unnecessary strlen calls Bernhard Voelker <mail@bernhard-voelker.de> parents: 17576 diff changeset	1531 new_len = len + d_namelen;
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1532 if (new_len < len) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1533 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1534 * In the unlikely event that we would end up
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1535 * with a file name longer than SIZE_MAX, free up
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1536 * the current structure and the structures already
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1537 * allocated, then error out with ENAMETOOLONG.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1538 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1539 free(p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1540 fts_lfree(head);
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1541 closedir_and_clear(cur->fts_dirp);
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1542 cur->fts_info = FTS_ERR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1543 SET(FTS_STOP);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1544 __set_errno (ENAMETOOLONG);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1545 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1546 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1547 p->fts_level = level;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1548 p->fts_parent = sp->fts_cur;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1549 p->fts_pathlen = new_len;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1550
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1551 /* Store dirent.d_ino, in case we need to sort
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1552 entries before processing them. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1553 p->fts_statp->st_ino = D_INO (dp);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1554
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1555 /* Build a file name for fts_stat to stat. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1556 if (ISSET(FTS_NOCHDIR)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1557 p->fts_accpath = p->fts_path;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1558 memmove(cp, p->fts_name, p->fts_namelen + 1);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1559 } else
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1560 p->fts_accpath = p->fts_name;
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	1561
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1562 if (sp->fts_compar == NULL \|\| ISSET(FTS_DEFER_STAT)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1563 /* Record what fts_read will have to do with this
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1564 entry. In many cases, it will simply fts_stat it,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1565 but we can take advantage of any d_type information
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1566 to optimize away the unnecessary stat calls. I.e.,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1567 if FTS_NOSTAT is in effect and we're not following
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1568 symlinks (FTS_PHYSICAL) and d_type indicates this
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1569 is not a directory, then we won't have to stat it
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1570 at all. If it is a directory, then (currently)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1571 we stat it regardless, in order to get device and
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1572 inode numbers. Some day we might optimize that
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1573 away, too, for directories where d_ino is known to
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1574 be valid. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1575 bool skip_stat = (ISSET(FTS_PHYSICAL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1576 && ISSET(FTS_NOSTAT)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1577 && DT_IS_KNOWN(dp)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1578 && ! DT_MUST_BE(dp, DT_DIR));
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1579 p->fts_info = FTS_NSOK;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1580 /* Propagate dirent.d_type information back
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1581 to caller, when possible. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1582 set_stat_type (p->fts_statp, D_TYPE (dp));
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1583 fts_set_stat_required(p, !skip_stat);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1584 } else {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1585 p->fts_info = fts_stat(sp, p, false);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1586 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1587
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1588 /* We walk in directory order so "ls -f" doesn't get upset. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1589 p->fts_link = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1590 if (head == NULL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1591 head = tail = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1592 else {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1593 tail->fts_link = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1594 tail = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1595 }
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1596
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1597 /* If there are many entries, no sorting function has been
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1598 specified, and this file system is of a type that may be
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1599 slow with a large number of entries, arrange to sort the
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1600 directory entries on increasing inode numbers. */
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1601 if (nitems == _FTS_INODE_SORT_DIR_ENTRIES_THRESHOLD
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1602 && !sp->fts_compar)
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1603 sort_by_inode = dirent_inode_sort_may_be_useful (cur, dir_fd);
4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1604
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1605 ++nitems;
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1606 if (max_entries <= nitems) {
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1607 /* When there are too many dir entries, leave
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1608 fts_dirp open, so that a subsequent fts_read
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1609 can take up where we leave off. */
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1610 goto break_without_closedir;
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1611 }
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1612 }
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1613
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1614 if (cur->fts_dirp)
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1615 closedir_and_clear(cur->fts_dirp);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1616
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1617 break_without_closedir:
65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1618
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1619 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1620 * If realloc() changed the address of the file name, adjust the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1621 * addresses for the rest of the tree and the dir list.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1622 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1623 if (doadjust)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1624 fts_padjust(sp, head);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1625
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1626 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1627 * If not changing directories, reset the file name back to original
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1628 * state.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1629 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1630 if (ISSET(FTS_NOCHDIR)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1631 if (len == sp->fts_pathlen \|\| nitems == 0)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1632 --cp;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1633 *cp = '\0';
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1634 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1635
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1636 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1637 * If descended after called from fts_children or after called from
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1638 * fts_read and nothing found, get back. At the root level we use
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1639 * the saved fd; if one of fts_open()'s arguments is a relative name
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1640 * to an empty directory, we wind up here with no other way back. If
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1641 * can't get back, we're done.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1642 */
15531 65fb6cc5f301 fts: do not exhaust memory when processing million-entry directories Jim Meyering <meyering@redhat.com> parents: 15530 diff changeset	1643 if (!continue_readdir && descend && (type == BCHILD \|\| !nitems) &&
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1644 (cur->fts_level == FTS_ROOTLEVEL
15988 cd7ac59d8eb5 fts: close parent dir FD before returning from post-traversal fts_read Jim Meyering <meyering@redhat.com> parents: 15531 diff changeset	1645 ? restore_initial_cwd(sp)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1646 : fts_safe_changedir(sp, cur->fts_parent, -1, ".."))) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1647 cur->fts_info = FTS_ERR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1648 SET(FTS_STOP);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1649 fts_lfree(head);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1650 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1651 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1652
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1653 /* If didn't find anything, return NULL. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1654 if (!nitems) {
18338 7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1655 if (type == BREAD
7276fe79480b fts: handle readdir() errors Pádraig Brady <P@draigBrady.com> parents: 18325 diff changeset	1656 && cur->fts_info != FTS_DNR && cur->fts_info != FTS_ERR)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1657 cur->fts_info = FTS_DP;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1658 fts_lfree(head);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1659 return (NULL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1660 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1661
19584 4f93d7f4b6ae fts: fix bug in find across filesystems Paul Eggert <eggert@cs.ucla.edu> parents: 19580 diff changeset	1662 if (sort_by_inode) {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1663 sp->fts_compar = fts_compare_ino;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1664 head = fts_sort (sp, head, nitems);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1665 sp->fts_compar = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1666 }
10481 47fe4e48e158 fts: sort dirent entries on inode number before traversing Jim Meyering <meyering@redhat.com> parents: 9718 diff changeset	1667
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1668 /* Sort the entries. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1669 if (sp->fts_compar && nitems > 1)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1670 head = fts_sort(sp, head, nitems);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1671 return (head);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1672 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1673
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1674 #if FTS_DEBUG
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1675
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1676 /* Walk ->fts_parent links starting at E_CURR, until the root of the
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1677 current hierarchy. There should be a directory with dev/inode
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1678 matching those of AD. If not, print a lot of diagnostics. */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1679 static void
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1680 find_matching_ancestor (FTSENT const e_curr, struct Active_dir const ad)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1681 {
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1682 FTSENT const *ent;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1683 for (ent = e_curr; ent->fts_level >= FTS_ROOTLEVEL; ent = ent->fts_parent)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1684 {
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1685 if (ad->ino == ent->fts_statp->st_ino
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1686 && ad->dev == ent->fts_statp->st_dev)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1687 return;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1688 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1689 printf ("ERROR: tree dir, %s, not active\n", ad->fts_ent->fts_accpath);
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1690 printf ("active dirs:\n");
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1691 for (ent = e_curr;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1692 ent->fts_level >= FTS_ROOTLEVEL; ent = ent->fts_parent)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1693 printf (" %s(%"PRIuMAX"/%"PRIuMAX") to %s(%"PRIuMAX"/%"PRIuMAX")...\n",
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1694 ad->fts_ent->fts_accpath,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1695 (uintmax_t) ad->dev,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1696 (uintmax_t) ad->ino,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1697 ent->fts_accpath,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1698 (uintmax_t) ent->fts_statp->st_dev,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1699 (uintmax_t) ent->fts_statp->st_ino);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1700 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1701
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1702 void
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1703 fts_cross_check (FTS const *sp)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1704 {
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1705 FTSENT const *ent = sp->fts_cur;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1706 FTSENT const *t;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1707 if ( ! ISSET (FTS_TIGHT_CYCLE_CHECK))
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1708 return;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1709
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1710 Dprintf (("fts-cross-check cur=%s\n", ent->fts_path));
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1711 /* Make sure every parent dir is in the tree. */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1712 for (t = ent->fts_parent; t->fts_level >= FTS_ROOTLEVEL; t = t->fts_parent)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1713 {
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1714 struct Active_dir ad;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1715 ad.ino = t->fts_statp->st_ino;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1716 ad.dev = t->fts_statp->st_dev;
6034 96149b1bbb32 (fts_cross_check) [FTS_DEBUG]: s/active_dir_ht/fts_cycle.ht/. Jim Meyering <jim@meyering.net> parents: 5907 diff changeset	1717 if ( ! hash_lookup (sp->fts_cycle.ht, &ad))
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1718 printf ("ERROR: active dir, %s, not in tree\n", t->fts_path);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1719 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1720
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1721 /* Make sure every dir in the tree is an active dir.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1722 But ENT is not necessarily a directory. If so, just skip this part. */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1723 if (ent->fts_parent->fts_level >= FTS_ROOTLEVEL
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1724 && (ent->fts_info == FTS_DP
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1725 \|\| ent->fts_info == FTS_D))
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1726 {
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1727 struct Active_dir *ad;
6034 96149b1bbb32 (fts_cross_check) [FTS_DEBUG]: s/active_dir_ht/fts_cycle.ht/. Jim Meyering <jim@meyering.net> parents: 5907 diff changeset	1728 for (ad = hash_get_first (sp->fts_cycle.ht); ad != NULL;
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1729 ad = hash_get_next (sp->fts_cycle.ht, ad))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1730 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1731 find_matching_ancestor (ent, ad);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1732 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1733 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1734 }
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1735
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1736 static bool
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1737 same_fd (int fd1, int fd2)
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1738 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1739 struct stat sb1, sb2;
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1740 return (fstat (fd1, &sb1) == 0
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1741 && fstat (fd2, &sb2) == 0
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1742 && SAME_INODE (sb1, sb2));
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1743 }
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1744
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1745 static void
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1746 fd_ring_print (FTS const sp, FILE stream, char const *msg)
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1747 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1748 I_ring const *fd_ring = &sp->fts_fd_ring;
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1749 unsigned int i = fd_ring->fts_front;
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1750 char *cwd = getcwdat (sp->fts_cwd_fd, NULL, 0);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1751 fprintf (stream, "=== %s ========== %s\n", msg, cwd);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1752 free (cwd);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1753 if (i_ring_empty (fd_ring))
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1754 return;
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1755
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1756 while (true)
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1757 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1758 int fd = fd_ring->fts_fd_ring[i];
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1759 if (fd < 0)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1760 fprintf (stream, "%d: %d:\n", i, fd);
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1761 else
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1762 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1763 char *wd = getcwdat (fd, NULL, 0);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1764 fprintf (stream, "%d: %d: %s\n", i, fd, wd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1765 free (wd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1766 }
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1767 if (i == fd_ring->fts_back)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1768 break;
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1769 i = (i + I_RING_SIZE - 1) % I_RING_SIZE;
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1770 }
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1771 }
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1772
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1773 /* Ensure that each file descriptor on the fd_ring matches a
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1774 parent, grandparent, etc. of the current working directory. */
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1775 static void
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1776 fd_ring_check (FTS const *sp)
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1777 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1778 if (!fts_debug)
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1779 return;
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1780
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1781 /* Make a writable copy. */
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1782 I_ring fd_w = sp->fts_fd_ring;
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1783
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1784 int cwd_fd = sp->fts_cwd_fd;
19047 f448a881990c fts: fix cloexec races Paul Eggert <eggert@cs.ucla.edu> parents: 19045 diff changeset	1785 cwd_fd = fcntl (cwd_fd, F_DUPFD_CLOEXEC, STDERR_FILENO + 1);
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1786 char *dot = getcwdat (cwd_fd, NULL, 0);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1787 error (0, 0, "===== check ===== cwd: %s", dot);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1788 free (dot);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1789 while ( ! i_ring_empty (&fd_w))
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1790 {
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1791 int fd = i_ring_pop (&fd_w);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1792 if (0 <= fd)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1793 {
19047 f448a881990c fts: fix cloexec races Paul Eggert <eggert@cs.ucla.edu> parents: 19045 diff changeset	1794 int open_flags = O_SEARCH \| O_CLOEXEC \| O_NOATIME;
f448a881990c fts: fix cloexec races Paul Eggert <eggert@cs.ucla.edu> parents: 19045 diff changeset	1795 int parent_fd = openat (cwd_fd, "..", open_flags);
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1796 if (parent_fd < 0)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1797 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1798 // Warn?
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1799 break;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1800 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1801 if (!same_fd (fd, parent_fd))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1802 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1803 char *cwd = getcwdat (fd, NULL, 0);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1804 error (0, errno, "ring : %s", cwd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1805 char *c2 = getcwdat (parent_fd, NULL, 0);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1806 error (0, errno, "parent: %s", c2);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1807 free (cwd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1808 free (c2);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1809 fts_assert (0);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1810 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1811 close (cwd_fd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1812 cwd_fd = parent_fd;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1813 }
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1814 }
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1815 close (cwd_fd);
1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	1816 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1817 #endif
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1818
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1819 static unsigned short int
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1820 internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1821 fts_stat(FTS sp, register FTSENT p, bool follow)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1822 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1823 struct stat *sbp = p->fts_statp;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1824
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1825 if (p->fts_level == FTS_ROOTLEVEL && ISSET(FTS_COMFOLLOW))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1826 follow = true;
7482 26914593f079 Big performance improvement for fts-based tools that use FTS_NOSTAT. Jim Meyering <jim@meyering.net> parents: 7408 diff changeset	1827
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1828 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1829 * If doing a logical walk, or application requested FTS_FOLLOW, do
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1830 * a stat(2). If that fails, check for a non-existent symlink. If
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1831 * fail, set the errno from the stat call.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1832 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1833 if (ISSET(FTS_LOGICAL) \|\| follow) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1834 if (stat(p->fts_accpath, sbp)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1835 if (errno == ENOENT
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1836 && lstat(p->fts_accpath, sbp) == 0) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1837 __set_errno (0);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1838 return (FTS_SLNONE);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1839 }
19027 a444c9308698 Don't interpret EOVERFLOW to mean nonexistence Paul Eggert <eggert@cs.ucla.edu> parents: 19012 diff changeset	1840 p->fts_errno = errno;
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1841 goto err;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1842 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1843 } else if (fstatat(sp->fts_cwd_fd, p->fts_accpath, sbp,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1844 AT_SYMLINK_NOFOLLOW)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1845 p->fts_errno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1846 err: memset(sbp, 0, sizeof(struct stat));
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1847 return (FTS_NS);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1848 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1849
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1850 if (S_ISDIR(sbp->st_mode)) {
19008 a6fc0157c611 fts: nlink_t signedness fixups Paul Eggert <eggert@cs.ucla.edu> parents: 18930 diff changeset	1851 p->fts_n_dirs_remaining
19009 7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	1852 = ((sbp->st_nlink < MIN_DIR_NLINK
19008 a6fc0157c611 fts: nlink_t signedness fixups Paul Eggert <eggert@cs.ucla.edu> parents: 18930 diff changeset	1853 \|\| p->fts_level <= FTS_ROOTLEVEL)
a6fc0157c611 fts: nlink_t signedness fixups Paul Eggert <eggert@cs.ucla.edu> parents: 18930 diff changeset	1854 ? -1
19009 7201d8037bb3 fts: introduce MIN_DIR_NLINK Paul Eggert <eggert@cs.ucla.edu> parents: 19008 diff changeset	1855 : sbp->st_nlink - (ISSET (FTS_SEEDOT) ? 0 : MIN_DIR_NLINK));
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1856 if (ISDOT(p->fts_name)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1857 /* Command-line "." and ".." are real directories. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1858 return (p->fts_level == FTS_ROOTLEVEL ? FTS_D : FTS_DOT);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1859 }
5872 fab6701e5cb2 New fts module. Paul Eggert <eggert@cs.ucla.edu> parents: 5867 diff changeset	1860
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1861 return (FTS_D);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1862 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1863 if (S_ISLNK(sbp->st_mode))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1864 return (FTS_SL);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1865 if (S_ISREG(sbp->st_mode))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1866 return (FTS_F);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1867 return (FTS_DEFAULT);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1868 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1869
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1870 static int
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1871 fts_compar (void const a, void const b)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1872 {
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1873 /* Convert A and B to the correct types, to pacify the compiler, and
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1874 for portability to bizarre hosts where "void const *" and "FTSENT
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1875 const **" differ in runtime representation. The comparison
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1876 function cannot modify a and b, but there is no compile-time
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1877 check for this. */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1878 FTSENT const pa = (FTSENT const ) a;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1879 FTSENT const pb = (FTSENT const ) b;
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1880 return pa[0]->fts_fts->fts_compar (pa, pb);
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1881 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1882
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1883 static FTSENT *
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1884 internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1885 fts_sort (FTS sp, FTSENT head, register size_t nitems)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1886 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1887 register FTSENT *ap, p;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1888
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1889 /* On most modern hosts, void * and FTSENT ** have the same
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1890 run-time representation, and one can convert sp->fts_compar to
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1891 the type qsort expects without problem. Use the heuristic that
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1892 this is OK if the two pointer types are the same size, and if
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1893 converting FTSENT ** to long int is the same as converting
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1894 FTSENT ** to void * and then to long int. This heuristic isn't
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1895 valid in general but we don't know of any counterexamples. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1896 FTSENT *dummy;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1897 int (compare) (void const , void const *) =
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1898 ((sizeof &dummy == sizeof (void *)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1899 && (long int) &dummy == (long int) (void *) &dummy)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1900 ? (int () (void const , void const *)) sp->fts_compar
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1901 : fts_compar);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1902
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1903 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1904 * Construct an array of pointers to the structures and call qsort(3).
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1905 * Reassemble the array in the order returned by qsort. If unable to
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1906 * sort for memory reasons, return the directory entries in their
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1907 * current order. Allocate enough space for the current needs plus
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1908 * 40 so don't realloc one entry at a time.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1909 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1910 if (nitems > sp->fts_nitems) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1911 FTSENT **a;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1912
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1913 sp->fts_nitems = nitems + 40;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1914 if (SIZE_MAX / sizeof *a < sp->fts_nitems
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1915 \|\| ! (a = realloc (sp->fts_array,
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1916 sp->fts_nitems * sizeof *a))) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1917 free(sp->fts_array);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1918 sp->fts_array = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1919 sp->fts_nitems = 0;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1920 return (head);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1921 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1922 sp->fts_array = a;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1923 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1924 for (ap = sp->fts_array, p = head; p; p = p->fts_link)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1925 *ap++ = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1926 qsort((void )sp->fts_array, nitems, sizeof(FTSENT ), compare);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1927 for (head = *(ap = sp->fts_array); --nitems; ++ap)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1928 ap[0]->fts_link = ap[1];
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1929 ap[0]->fts_link = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1930 return (head);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1931 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1932
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1933 static FTSENT *
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1934 internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1935 fts_alloc (FTS sp, const char name, register size_t namelen)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1936 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1937 register FTSENT *p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1938 size_t len;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1939
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1940 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1941 * The file name is a variable length array. Allocate the FTSENT
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1942 * structure and the file name in one chunk.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1943 */
18403 4434607ac1ce flexmember: port better to GCC + valgrind Paul Eggert <eggert@cs.ucla.edu> parents: 18338 diff changeset	1944 len = FLEXSIZEOF(FTSENT, fts_name, namelen + 1);
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1945 if ((p = malloc(len)) == NULL)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1946 return (NULL);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1947
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1948 /* Copy the name and guarantee NUL termination. */
17073 60627a1a95ff fts: when there is no risk of overlap, use memcpy, not memmove Jim Meyering <meyering@redhat.com> parents: 16358 diff changeset	1949 memcpy(p->fts_name, name, namelen);
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1950 p->fts_name[namelen] = '\0';
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1951
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1952 p->fts_namelen = namelen;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1953 p->fts_fts = sp;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1954 p->fts_path = sp->fts_path;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1955 p->fts_errno = 0;
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1956 p->fts_dirp = NULL;
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1957 p->fts_flags = 0;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1958 p->fts_instr = FTS_NOINSTR;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1959 p->fts_number = 0;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1960 p->fts_pointer = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1961 return (p);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1962 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1963
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1964 static void
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1965 internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1966 fts_lfree (register FTSENT *head)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1967 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1968 register FTSENT *p;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1969
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1970 /* Free a linked list of structures. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1971 while ((p = head)) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1972 head = head->fts_link;
15529 894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1973 if (p->fts_dirp)
894e5e6ae541 fts: add/use new struct member, fts_dirp Jim Meyering <meyering@redhat.com> parents: 15528 diff changeset	1974 closedir (p->fts_dirp);
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1975 free(p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1976 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1977 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1978
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1979 /*
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	1980 * Allow essentially unlimited file name lengths; find, rm, ls should
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	1981 * all work on any tree. Most systems will allow creation of file
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	1982 * names much longer than MAXPATHLEN, even though the kernel won't
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	1983 * resolve them. Add the size (not just what's needed) plus 256 bytes
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	1984 * so don't realloc the file name 2 bytes at a time.
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1985 */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1986 static bool
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1987 internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1988 fts_palloc (FTS *sp, size_t more)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1989 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1990 char *p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1991 size_t new_len = sp->fts_pathlen + more + 256;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	1992
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1993 /*
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1994 * See if fts_pathlen would overflow.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1995 */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1996 if (new_len < sp->fts_pathlen) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1997 free(sp->fts_path);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1998 sp->fts_path = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	1999 __set_errno (ENAMETOOLONG);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2000 return false;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2001 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2002 sp->fts_pathlen = new_len;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2003 p = realloc(sp->fts_path, sp->fts_pathlen);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2004 if (p == NULL) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2005 free(sp->fts_path);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2006 sp->fts_path = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2007 return false;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2008 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2009 sp->fts_path = p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2010 return true;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2011 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2012
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2013 /*
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	2014 * When the file name is realloc'd, have to fix all of the pointers in
c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	2015 * structures already returned.
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2016 */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2017 static void
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2018 internal_function
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2019 fts_padjust (FTS sp, FTSENT head)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2020 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2021 FTSENT *p;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2022 char *addr = sp->fts_path;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2023
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2024 #define ADJUST(p) do { \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2025 if ((p)->fts_accpath != (p)->fts_name) { \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2026 (p)->fts_accpath = \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2027 (char *)addr + ((p)->fts_accpath - (p)->fts_path); \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2028 } \
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2029 (p)->fts_path = addr; \
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2030 } while (0)
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2031 /* Adjust the current set of children. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2032 for (p = sp->fts_child; p; p = p->fts_link)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2033 ADJUST(p);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2034
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2035 /* Adjust the rest of the tree, including the current level. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2036 for (p = head; p->fts_level >= FTS_ROOTLEVEL;) {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2037 ADJUST(p);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2038 p = p->fts_link ? p->fts_link : p->fts_parent;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2039 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2040 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2041
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2042 static size_t
16128 6beadb731202 mark functions with const and pure attributes Jim Meyering <meyering@redhat.com> parents: 15988 diff changeset	2043 internal_function _GL_ATTRIBUTE_PURE
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2044 fts_maxarglen (char * const *argv)
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2045 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2046 size_t len, max;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2047
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2048 for (max = 0; *argv; ++argv)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2049 if ((len = strlen(*argv)) > max)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2050 max = len;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2051 return (max + 1);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2052 }
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2053
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2054 /*
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	2055 * Change to dir specified by fd or file name without getting
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2056 * tricked by someone changing the world out from underneath us.
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2057 * Assumes p->fts_statp->st_dev and p->fts_statp->st_ino are filled in.
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	2058 * If FD is non-negative, expect it to be used after this function returns,
16235 18a38c9615f0 In commentary, do not use ` to quote. Paul Eggert <eggert@cs.ucla.edu> parents: 16201 diff changeset	2059 * and to be closed eventually. So don't pass e.g., 'dirfd(dirp)' and then
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	2060 * do closedir(dirp), because that would invalidate the saved FD.
43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	2061 * Upon failure, close FD immediately and return nonzero.
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2062 */
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2063 static int
942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2064 internal_function
5907 c47674a83a78 Sync from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 5894 diff changeset	2065 fts_safe_changedir (FTS sp, FTSENT p, int fd, char const *dir)
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2066 {
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2067 int ret;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2068 bool is_dotdot = dir && STREQ (dir, "..");
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2069 int newfd;
7623 5bfad7d666d6 * lib/fts.c (fts_safe_changedir): Add a comment. Jim Meyering <jim@meyering.net> parents: 7621 diff changeset	2070
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2071 /* This clause handles the unusual case in which FTS_NOCHDIR
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2072 is specified, along with FTS_CWDFD. In that case, there is
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2073 no need to change even the virtual cwd file descriptor.
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2074 However, if FD is non-negative, we do close it here. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2075 if (ISSET (FTS_NOCHDIR))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2076 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2077 if (ISSET (FTS_CWDFD) && 0 <= fd)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2078 close (fd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2079 return 0;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2080 }
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2081
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2082 if (fd < 0 && is_dotdot && ISSET (FTS_CWDFD))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2083 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2084 /* When possible, skip the diropen and subsequent fstat+dev/ino
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2085 comparison. I.e., when changing to parent directory
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2086 (chdir ("..")), use a file descriptor from the ring and
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2087 save the overhead of diropen+fstat, as well as avoiding
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2088 failure when we lack "x" access to the virtual cwd. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2089 if ( ! i_ring_empty (&sp->fts_fd_ring))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2090 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2091 int parent_fd;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2092 fd_ring_print (sp, stderr, "pre-pop");
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2093 parent_fd = i_ring_pop (&sp->fts_fd_ring);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2094 is_dotdot = true;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2095 if (0 <= parent_fd)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2096 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2097 fd = parent_fd;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2098 dir = NULL;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2099 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2100 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2101 }
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	2102
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2103 newfd = fd;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2104 if (fd < 0 && (newfd = diropen (sp, dir)) < 0)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2105 return -1;
7639 1670d42131d7 Make fts (in FTS_CWDFD mode) more efficient by caching a few open Jim Meyering <jim@meyering.net> parents: 7635 diff changeset	2106
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2107 /* The following dev/inode check is necessary if we're doing a
16235 18a38c9615f0 In commentary, do not use ` to quote. Paul Eggert <eggert@cs.ucla.edu> parents: 16201 diff changeset	2108 "logical" traversal (through symlinks, a la chown -L), if the
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2109 system lacks O_NOFOLLOW support, or if we're changing to ".."
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2110 (but not via a popped file descriptor). When changing to the
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2111 name "..", O_NOFOLLOW can't help. In general, when the target is
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2112 not "..", diropen's use of O_NOFOLLOW ensures we don't mistakenly
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2113 follow a symlink, so we can avoid the expense of this fstat. */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2114 if (ISSET(FTS_LOGICAL) \|\| ! HAVE_WORKING_O_NOFOLLOW
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2115 \|\| (dir && STREQ (dir, "..")))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2116 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2117 struct stat sb;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2118 if (fstat(newfd, &sb))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2119 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2120 ret = -1;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2121 goto bail;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2122 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2123 if (p->fts_statp->st_dev != sb.st_dev
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2124 \|\| p->fts_statp->st_ino != sb.st_ino)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2125 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2126 __set_errno (ENOENT); /* disinformation */
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2127 ret = -1;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2128 goto bail;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2129 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2130 }
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	2131
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2132 if (ISSET(FTS_CWDFD))
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2133 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2134 cwd_advance_fd (sp, newfd, ! is_dotdot);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2135 return 0;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2136 }
7151 43e3888c56c4 Update from coreutils. Paul Eggert <eggert@cs.ucla.edu> parents: 6949 diff changeset	2137
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2138 ret = fchdir(newfd);
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2139 bail:
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2140 if (fd < 0)
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2141 {
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2142 int oerrno = errno;
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2143 (void)close(newfd);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2144 __set_errno (oerrno);
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2145 }
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12378 diff changeset	2146 return ret;
5858 942c4d17dd7d New files, from coreutils. Jim Meyering <jim@meyering.net> parents: diff changeset	2147 }

Mercurial > gnulib

annotate lib/fts.c @ 19584:4f93d7f4b6ae