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Adding upstream version 9.7.

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Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
This commit is contained in:
Daniel Baumann 2025-06-21 07:57:52 +02:00
parent 4b8dc12adb
commit c08a8f7410
Signed by: daniel.baumann
GPG key ID: BCC918A2ABD66424
3561 changed files with 1457043 additions and 0 deletions
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52
lib/pipe-safer.c Normal file
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/* Invoke pipe, but avoid some glitches.
Copyright (C) 2005-2006, 2009-2025 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 <https://www.gnu.org/licenses/>. */
/* Written by Jim Meyering. */
#include <config.h>
#include "unistd-safer.h"
#include <unistd.h>
#include <errno.h>
/* Like pipe, but ensure that neither of the file descriptors is
STDIN_FILENO, STDOUT_FILENO, or STDERR_FILENO. Fail with ENOSYS on
platforms that lack pipe. */
int
pipe_safer (int fd[2])
{
if (pipe (fd) == 0)
{
int i;
for (i = 0; i < 2; i++)
{
fd[i] = fd_safer (fd[i]);
if (fd[i] < 0)
{
int saved_errno = errno;
close (fd[1 - i]);
errno = saved_errno;
return -1;
}
}
return 0;
}
return -1;
}