gnulib: lib/ptsname_r.c annotate

annotate lib/ptsname_r.c @ 40140:81f075eaa990

ptsname_r: Work around bug on Android 4.3. * m4/ptsname_r.m4 (gl_FUNC_PTSNAME_R): Define HAVE_ESSENTIALLY_WORKING_PTSNAME_R. Test whether the return value is correct. * lib/ptsname_r.c (__ptsname_r): If HAVE_ESSENTIALLY_WORKING_PTSNAME_R is defined, just fix the return value. * doc/glibc-functions/ptsname_r.texi: Mention the Android bug. Reword: The behaviour of musl libc is nothing to be "fixed", since it is compliant with the next POSIX standard.

author	Bruno Haible <bruno@clisp.org>
date	Sat, 26 Jan 2019 15:23:19 +0100
parents	b06060465f09
children

rev	line source
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	1 /* Determine name of the slave side of a pseudo-terminal.
40057 b06060465f09 maint: Run 'make update-copyright' Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	2 Copyright (C) 1998, 2002, 2010-2019 Free Software Foundation, Inc.
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	3
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	4 This program is free software: you can redistribute it and/or modify
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	5 it under the terms of the GNU General Public License as published by
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	6 the Free Software Foundation; either version 3 of the License, or
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	7 (at your option) any later version.
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	8
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	9 This program is distributed in the hope that it will be useful,
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	10 but WITHOUT ANY WARRANTY; without even the implied warranty of
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	12 GNU General Public License for more details.
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	13
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	14 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: 18626 diff changeset	15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	16
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	17 #include <config.h>
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	18
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	19 #include <stdlib.h>
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	20
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	21 #include <errno.h>
16940 f0c9b2dc0596 ptsname_r: Fix test failures on IRIX, Solaris. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	22 #include <fcntl.h>
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	23 #include <string.h>
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	24 #include <sys/stat.h>
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	25 #include <unistd.h>
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	26
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	27 #ifdef _LIBC
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	28 # include <paths.h>
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	29 #else
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	30 # ifndef _PATH_TTY
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	31 # define _PATH_TTY "/dev/tty"
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	32 # endif
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	33 # ifndef _PATH_DEV
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	34 # define _PATH_DEV "/dev/"
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	35 # endif
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	36
18372 d9961cf477d9 maint: preprocessor changes to support z/OS Daniel Richard G <skunk@iSKUNK.ORG> parents: 18189 diff changeset	37 # undef __set_errno
d9961cf477d9 maint: preprocessor changes to support z/OS Daniel Richard G <skunk@iSKUNK.ORG> parents: 18189 diff changeset	38 # undef __stat
d9961cf477d9 maint: preprocessor changes to support z/OS Daniel Richard G <skunk@iSKUNK.ORG> parents: 18189 diff changeset	39 # undef __ttyname_r
d9961cf477d9 maint: preprocessor changes to support z/OS Daniel Richard G <skunk@iSKUNK.ORG> parents: 18189 diff changeset	40 # undef __ptsname_r
d9961cf477d9 maint: preprocessor changes to support z/OS Daniel Richard G <skunk@iSKUNK.ORG> parents: 18189 diff changeset	41
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	42 # define __set_errno(e) errno = (e)
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	43 # define __isatty isatty
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	44 # define __stat stat
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	45 # define __ttyname_r ttyname_r
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	46 # define __ptsname_r ptsname_r
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	47
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	48 #endif
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	49
18532 93a8694eca79 ptsname_r: leverage AC_HEADER_MAJOR Mike Frysinger <vapier@gentoo.org> parents: 18372 diff changeset	50 /* Get the major, minor macros. */
93a8694eca79 ptsname_r: leverage AC_HEADER_MAJOR Mike Frysinger <vapier@gentoo.org> parents: 18372 diff changeset	51 #if MAJOR_IN_MKDEV
93a8694eca79 ptsname_r: leverage AC_HEADER_MAJOR Mike Frysinger <vapier@gentoo.org> parents: 18372 diff changeset	52 # include <sys/mkdev.h>
93a8694eca79 ptsname_r: leverage AC_HEADER_MAJOR Mike Frysinger <vapier@gentoo.org> parents: 18372 diff changeset	53 #endif
93a8694eca79 ptsname_r: leverage AC_HEADER_MAJOR Mike Frysinger <vapier@gentoo.org> parents: 18372 diff changeset	54 #if MAJOR_IN_SYSMACROS
93a8694eca79 ptsname_r: leverage AC_HEADER_MAJOR Mike Frysinger <vapier@gentoo.org> parents: 18372 diff changeset	55 # include <sys/sysmacros.h>
93a8694eca79 ptsname_r: leverage AC_HEADER_MAJOR Mike Frysinger <vapier@gentoo.org> parents: 18372 diff changeset	56 #endif
93a8694eca79 ptsname_r: leverage AC_HEADER_MAJOR Mike Frysinger <vapier@gentoo.org> parents: 18372 diff changeset	57
16942 17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	58 #ifdef __sun
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	59 /* Get ioctl() and 'struct strioctl'. */
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	60 # include <stropts.h>
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	61 /* Get ISPTM. */
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	62 # include <sys/stream.h>
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	63 # include <sys/ptms.h>
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	64 # include <stdio.h>
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	65 #endif
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	66
16945 af6492941f0d ptsname_r: Make it consistent with ptsname on AIX. Bruno Haible <bruno@clisp.org> parents: 16944 diff changeset	67 #if defined _AIX \|\| defined __osf__
16944 00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	68 /* Get ioctl(), ISPTM. */
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	69 # include <sys/ioctl.h>
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	70 # include <stdio.h>
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	71 #endif
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	72
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	73
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	74 /* Store at most BUFLEN characters of the pathname of the slave pseudo
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	75 terminal associated with the master FD is open on in BUF.
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	76 Return 0 on success, otherwise an error number. */
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	77 int
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	78 __ptsname_r (int fd, char *buf, size_t buflen)
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	79 #undef ptsname_r
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	80 {
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	81 #if HAVE_ESSENTIALLY_WORKING_PTSNAME_R
81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	82 int ret = ptsname_r (fd, buf, buflen);
81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	83 if (ret == 0)
81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	84 return 0;
81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	85 else
81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	86 return errno;
81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	87 #else
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	88 int save_errno = errno;
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	89 int err;
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	90 struct stat st;
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	91
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	92 if (buf == NULL)
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	93 {
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	94 __set_errno (EINVAL);
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	95 return EINVAL;
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	96 }
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	97
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	98 # if defined __sun /* Solaris */
16942 17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	99 if (fstat (fd, &st) < 0)
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	100 return errno;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	101 if (!(S_ISCHR (st.st_mode) && major (st.st_rdev) == 0))
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	102 {
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	103 errno = ENOTTY;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	104 return errno;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	105 }
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	106 {
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	107 /* Master ptys can be recognized through a STREAMS ioctl. See
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	108 "STREAMS-based Pseudo-Terminal Subsystem"
19192 d86e08b1f555 all: Replace many more http URLs by https URLs. Update stale URLs. Bruno Haible <bruno@clisp.org> parents: 19190 diff changeset	109 <https://docs.oracle.com/cd/E18752_01/html/816-4855/termsub15-44781.html>
16942 17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	110 and "STREAMS ioctl commands"
19192 d86e08b1f555 all: Replace many more http URLs by https URLs. Update stale URLs. Bruno Haible <bruno@clisp.org> parents: 19190 diff changeset	111 <https://docs.oracle.com/cd/E18752_01/html/816-5177/streamio-7i.html>
16942 17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	112 */
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	113 struct strioctl ioctl_arg;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	114 ioctl_arg.ic_cmd = ISPTM;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	115 ioctl_arg.ic_timout = 0;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	116 ioctl_arg.ic_len = 0;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	117 ioctl_arg.ic_dp = NULL;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	118
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	119 if (ioctl (fd, I_STR, &ioctl_arg) < 0)
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	120 {
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	121 errno = ENOTTY;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	122 return errno;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	123 }
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	124 }
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	125 {
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	126 char tmpbuf[9 + 10 + 1];
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	127 int n = sprintf (tmpbuf, "/dev/pts/%u", minor (st.st_rdev));
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	128 if (n >= buflen)
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	129 {
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	130 errno = ERANGE;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	131 return errno;
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	132 }
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	133 memcpy (buf, tmpbuf, n + 1);
17843e284264 ptsname_r: Add support for Solaris. Bruno Haible <bruno@clisp.org> parents: 16940 diff changeset	134 }
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	135 # elif defined _AIX \|\| defined __osf__ /* AIX, OSF/1 */
16944 00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	136 /* This implementation returns /dev/pts/N, like ptsname() does.
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	137 Whereas the generic implementation below returns /dev/ttypN.
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	138 Both are correct, but let's be consistent with ptsname(). */
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	139 if (fstat (fd, &st) < 0)
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	140 return errno;
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	141 if (!S_ISCHR (st.st_mode))
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	142 {
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	143 errno = ENOTTY;
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	144 return errno;
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	145 }
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	146 {
16945 af6492941f0d ptsname_r: Make it consistent with ptsname on AIX. Bruno Haible <bruno@clisp.org> parents: 16944 diff changeset	147 int ret;
16944 00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	148 int dev;
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	149 char tmpbuf[9 + 10 + 1];
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	150 int n;
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	151 # ifdef _AIX
16945 af6492941f0d ptsname_r: Make it consistent with ptsname on AIX. Bruno Haible <bruno@clisp.org> parents: 16944 diff changeset	152 ret = ioctl (fd, ISPTM, &dev);
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	153 # endif
81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	154 # ifdef __osf__
16945 af6492941f0d ptsname_r: Make it consistent with ptsname on AIX. Bruno Haible <bruno@clisp.org> parents: 16944 diff changeset	155 ret = ioctl (fd, ISPTM, NULL);
af6492941f0d ptsname_r: Make it consistent with ptsname on AIX. Bruno Haible <bruno@clisp.org> parents: 16944 diff changeset	156 dev = ret;
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	157 # endif
16946 f34e11adfc84 ptsname_r: Fix typo in last commit. Bruno Haible <bruno@clisp.org> parents: 16945 diff changeset	158 if (ret < 0)
16944 00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	159 {
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	160 errno = ENOTTY;
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	161 return errno;
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	162 }
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	163 n = sprintf (tmpbuf, "/dev/pts/%u", minor (dev));
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	164 if (n >= buflen)
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	165 {
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	166 errno = ERANGE;
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	167 return errno;
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	168 }
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	169 memcpy (buf, tmpbuf, n + 1);
00ae3faf06c6 ptsname_r: Make it consistent with ptsname on OSF/1. Bruno Haible <bruno@clisp.org> parents: 16942 diff changeset	170 }
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	171 # else
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	172 if (!__isatty (fd))
16940 f0c9b2dc0596 ptsname_r: Fix test failures on IRIX, Solaris. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	173 {
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	174 # if ISATTY_FAILS_WITHOUT_SETTING_ERRNO && defined F_GETFL /* IRIX, Solaris */
16940 f0c9b2dc0596 ptsname_r: Fix test failures on IRIX, Solaris. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	175 /* Set errno. */
f0c9b2dc0596 ptsname_r: Fix test failures on IRIX, Solaris. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	176 if (fcntl (fd, F_GETFL) != -1)
f0c9b2dc0596 ptsname_r: Fix test failures on IRIX, Solaris. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	177 errno = ENOTTY;
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	178 # else
16940 f0c9b2dc0596 ptsname_r: Fix test failures on IRIX, Solaris. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	179 /* We rely on isatty to set errno properly (i.e. EBADF or ENOTTY). */
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	180 # endif
16940 f0c9b2dc0596 ptsname_r: Fix test failures on IRIX, Solaris. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	181 return errno;
f0c9b2dc0596 ptsname_r: Fix test failures on IRIX, Solaris. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	182 }
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	183
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	184 if (buflen < strlen (_PATH_TTY) + 3)
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	185 {
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	186 __set_errno (ERANGE);
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	187 return ERANGE;
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	188 }
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	189
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	190 err = __ttyname_r (fd, buf, buflen);
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	191 if (err != 0)
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	192 {
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	193 __set_errno (err);
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	194 return errno;
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	195 }
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	196
17125 99a0d94bccb1 ptsname_r: support ptys returned by FreeBSD posix_openpt Eric Blake <eblake@redhat.com> parents: 16946 diff changeset	197 if (strncmp(buf, "/dev/pts/", strlen("/dev/pts/")) != 0)
99a0d94bccb1 ptsname_r: support ptys returned by FreeBSD posix_openpt Eric Blake <eblake@redhat.com> parents: 16946 diff changeset	198 buf[sizeof (_PATH_DEV) - 1] = 't';
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	199 # endif
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	200
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	201 if (__stat (buf, &st) < 0)
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	202 return errno;
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	203
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	204 __set_errno (save_errno);
c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	205 return 0;
40140 81f075eaa990 ptsname_r: Work around bug on Android 4.3. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	206 #endif
16067 c4b6df81c7b3 ptsname_r: new module Eric Blake <eblake@redhat.com> parents: diff changeset	207 }

Mercurial > gnulib

annotate lib/ptsname_r.c @ 40140:81f075eaa990