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/*
* Copyright © 2012 Collabora, Ltd.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that copyright
* notice and this permission notice appear in supporting documentation, and
* that the name of the copyright holders not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. The copyright holders make no representations
* about the suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
* OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/socket.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include "os-compatibility.h"
static int
set_cloexec_or_close(int fd)
{
long flags;
if (fd == -1)
return -1;
flags = fcntl(fd, F_GETFD);
if (flags == -1)
goto err;
if (fcntl(fd, F_SETFD, flags | FD_CLOEXEC) == -1)
goto err;
return fd;
err:
close(fd);
return -1;
}
int
os_socketpair_cloexec(int domain, int type, int protocol, int *sv)
{
int ret;
#ifdef SOCK_CLOEXEC
ret = socketpair(domain, type | SOCK_CLOEXEC, protocol, sv);
if (ret == 0 || errno != EINVAL)
return ret;
#endif
ret = socketpair(domain, type, protocol, sv);
if (ret < 0)
return ret;
sv[0] = set_cloexec_or_close(sv[0]);
sv[1] = set_cloexec_or_close(sv[1]);
if (sv[0] != -1 && sv[1] != -1)
return 0;
close(sv[0]);
close(sv[1]);
return -1;
}
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