Mercurial > gnulib
view lib/pipe-safer.c @ 17454:a2d511609297
sys_time: port to OpenBSD
* lib/sys_time.in.h: Simply delegate to the system's header
in the BSDish cases as well. Problem reported by Mike Miller in
<http://lists.gnu.org/archive/html/bug-gnulib/2013-08/msg00016.html>.
* tests/test-sys_select.c, tests/test-sys_time.c (verify_tv_sec_type):
Allow platforms like 64-bit OpenBSD where timeval's tv_sec is
wider than time_t.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sat, 10 Aug 2013 22:02:58 -0700 |
parents | e542fd46ad6f |
children | 344018b6e5d7 |
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/* Invoke pipe, but avoid some glitches. Copyright (C) 2005-2006, 2009-2013 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. */ #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 HAVE_PIPE if (pipe (fd) == 0) { int i; for (i = 0; i < 2; i++) { fd[i] = fd_safer (fd[i]); if (fd[i] < 0) { int e = errno; close (fd[1 - i]); errno = e; return -1; } } return 0; } #else errno = ENOSYS; #endif return -1; }