annotate lib/tcgetsid.c @ 17160:72f4bab621be

fts: introduce FTS_VERBATIM This gives clients the option to disable stripping of trailing slashes from input path names during fts_open initialization. The recent change v0.0-7611-g3a9002d that made fts_open strip trailing slashes from input path names had a negative impact on findutils that relies on the old fts_open behavior to implement POSIX requirement that each path operand of the find utility shall be evaluated unaltered as it was provided, including all trailing slash characters. * lib/fts_.h (FTS_VERBATIM): New bit flag. (FTS_OPTIONMASK, FTS_NAMEONLY, FTS_STOP): Adjust. * lib/fts.c (fts_open): Honor it.
author Dmitry V. Levin <ldv@altlinux.org>
date Sun, 18 Nov 2012 04:40:18 +0400
parents 498a2211d839
children e542fd46ad6f
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1 /* Determine the session ID of the controlling terminal of the current process.
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2 Copyright (C) 2010-2012 Free Software Foundation, Inc.
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3
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4 This program is free software; you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 2, or (at your option)
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7 any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program; if not, see <http://www.gnu.org/licenses/>. */
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16
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17 #include <config.h>
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18
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19 #define USE_OLD_TTY /* needed on OpenBSD 4.5, so that TIOCGSID gets defined */
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20
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21 /* Specification. */
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22 #include <termios.h>
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23
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24 #include <errno.h>
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25 #include <sys/ioctl.h>
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26
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27 pid_t
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28 tcgetsid (int fd)
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29 {
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30 #ifdef TIOCGSID /* Mac OS X, OpenBSD */
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31 int sid;
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32
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33 if (ioctl (fd, TIOCGSID, &sid) < 0)
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34 return -1; /* errno is set here */
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35
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36 return sid;
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37 #else /* FreeBSD, Cygwin, mingw */
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38 errno = ENOSYS;
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39 return -1;
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40 #endif
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41 }