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