mirror of https://github.com/sudo-project/sudo.git
65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
/*
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* SPDX-License-Identifier: ISC
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*
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* Copyright (c) 2017 Todd C. Miller <Todd.Miller@sudo.ws>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*
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* This is an open source non-commercial project. Dear PVS-Studio, please check it.
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* PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
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*/
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#include <config.h>
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#ifndef HAVE_PIPE2
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#include <fcntl.h>
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#include <unistd.h>
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#include <sudo_compat.h>
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int
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sudo_pipe2(int fildes[2], int flags)
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{
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if (pipe(fildes) != 0)
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return -1;
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if (ISSET(flags, O_CLOEXEC)) {
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if (fcntl(fildes[0], F_SETFD, FD_CLOEXEC) == -1)
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goto bad;
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if (fcntl(fildes[1], F_SETFD, FD_CLOEXEC) == -1)
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goto bad;
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}
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if (ISSET(flags, O_NONBLOCK)) {
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int oflags = fcntl(fildes[0], F_GETFL, 0);
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if (oflags == -1)
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goto bad;
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if (fcntl(fildes[0], F_SETFL, oflags | O_NONBLOCK) == -1)
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goto bad;
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oflags = fcntl(fildes[1], F_GETFL, 0);
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if (oflags == -1)
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goto bad;
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if (fcntl(fildes[1], F_SETFL, oflags | O_NONBLOCK) == -1)
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goto bad;
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}
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return 0;
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bad:
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close(fildes[0]);
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close(fildes[1]);
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return -1;
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}
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#endif /* HAVE_PIPE2 */
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