mirror of
https://github.com/jart/cosmopolitan.git
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40 lines
2.4 KiB
C
40 lines
2.4 KiB
C
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
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│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi│
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╞══════════════════════════════════════════════════════════════════════════════╡
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│ Copyright 2020 Justine Alexandra Roberts Tunney │
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│ │
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│ Permission to use, copy, modify, and/or distribute this software for │
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│ any purpose with or without fee is hereby granted, provided that the │
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│ above 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 │
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│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
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│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
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│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
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│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
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│ 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 │
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│ PERFORMANCE OF THIS SOFTWARE. │
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╚─────────────────────────────────────────────────────────────────────────────*/
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#include "libc/calls/syscall-sysv.internal.h"
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#include "libc/calls/syscall_support-sysv.internal.h"
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#include "libc/dce.h"
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#include "libc/errno.h"
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#include "libc/sysv/consts/o.h"
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#include "libc/sysv/errfuns.h"
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int32_t sys_pipe2(int pipefd[hasatleast 2], unsigned flags) {
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int rc, olderr;
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if (!flags) goto OldSkool;
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olderr = errno;
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rc = __sys_pipe2(pipefd, flags);
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if (rc == -1 && errno == ENOSYS) {
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errno = olderr;
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OldSkool:
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if ((rc = sys_pipe(pipefd)) != -1) {
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__fixupnewfd(pipefd[0], flags);
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__fixupnewfd(pipefd[1], flags);
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}
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}
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return rc;
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}
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