Mercurial > gnulib
view lib/openat.h @ 17295:d536543d59a6
statat: new module, split out from fstatat
GNU Emacs needs the POSIX-specified fstatat, but not the
gnulib-specified statat and lstat. Split the latter two into a
new module 'statat'.
* lib/openat.h: Depend on GNULIB_STATAT, not GNULIB_FSTATAT.
* lib/openat.h, lib/statat.c (STATAT_INLINE):
Rename from FSTATAT_INLINE. All uses changed.
* modules/fstatat (Files): Remove lib/statat.c.
(gl_MODULE_INDICATOR([fstatat])): Remove.
(lib_SOURCES): Remove.
(Maintainer): Add self.
* modules/statat, modules/statat-tests, tests/test-statat.c: New files.
* tests/test-fstatat.c (BASE): Don't define if already defined.
(do_stat, do_lstat) [!TEST_STATAT]: Test fstatat instead.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Wed, 23 Jan 2013 18:20:09 -0800 |
parents | e542fd46ad6f |
children | 1f9070ef79b0 |
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/* provide a replacement openat function Copyright (C) 2004-2006, 2008-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>. */ /* written by Jim Meyering */ #ifndef _GL_HEADER_OPENAT #define _GL_HEADER_OPENAT #include <fcntl.h> #include <sys/types.h> #include <sys/stat.h> #include <unistd.h> #include <stdbool.h> _GL_INLINE_HEADER_BEGIN #if !HAVE_OPENAT int openat_permissive (int fd, char const *file, int flags, mode_t mode, int *cwd_errno); bool openat_needs_fchdir (void); #else # define openat_permissive(Fd, File, Flags, Mode, Cwd_errno) \ openat (Fd, File, Flags, Mode) # define openat_needs_fchdir() false #endif _Noreturn void openat_restore_fail (int); _Noreturn void openat_save_fail (int); /* Using these function names makes application code slightly more readable than it would be with fchownat (..., 0) or fchownat (..., AT_SYMLINK_NOFOLLOW). */ #if GNULIB_FCHOWNAT # ifndef FCHOWNAT_INLINE # define FCHOWNAT_INLINE _GL_INLINE # endif FCHOWNAT_INLINE int chownat (int fd, char const *file, uid_t owner, gid_t group) { return fchownat (fd, file, owner, group, 0); } FCHOWNAT_INLINE int lchownat (int fd, char const *file, uid_t owner, gid_t group) { return fchownat (fd, file, owner, group, AT_SYMLINK_NOFOLLOW); } #endif #if GNULIB_FCHMODAT # ifndef FCHMODAT_INLINE # define FCHMODAT_INLINE _GL_INLINE # endif FCHMODAT_INLINE int chmodat (int fd, char const *file, mode_t mode) { return fchmodat (fd, file, mode, 0); } FCHMODAT_INLINE int lchmodat (int fd, char const *file, mode_t mode) { return fchmodat (fd, file, mode, AT_SYMLINK_NOFOLLOW); } #endif #if GNULIB_STATAT # ifndef STATAT_INLINE # define STATAT_INLINE _GL_INLINE # endif STATAT_INLINE int statat (int fd, char const *name, struct stat *st) { return fstatat (fd, name, st, 0); } STATAT_INLINE int lstatat (int fd, char const *name, struct stat *st) { return fstatat (fd, name, st, AT_SYMLINK_NOFOLLOW); } #endif /* For now, there are no wrappers named laccessat or leuidaccessat, since gnulib doesn't support faccessat(,AT_SYMLINK_NOFOLLOW) and since access rights on symlinks are of limited utility. Likewise, wrappers are not provided for accessat or euidaccessat, so as to avoid dragging in -lgen on some platforms. */ _GL_INLINE_HEADER_END #endif /* _GL_HEADER_OPENAT */