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54 lines
1.8 KiB
C
54 lines
1.8 KiB
C
/*
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* Copyright (c) 2000 Ben Lindstrom. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include "includes.h"
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#ifndef HAVE_WAITPID
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#include <errno.h>
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#include <sys/wait.h>
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#include "bsd-waitpid.h"
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pid_t
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waitpid(int pid, int *stat_loc, int options)
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{
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union wait statusp;
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pid_t wait_pid;
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if (pid <= 0) {
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if (pid != -1) {
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errno = EINVAL;
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return (-1);
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}
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/* wait4() wants pid=0 for indiscriminate wait. */
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pid = 0;
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}
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wait_pid = wait4(pid, &statusp, options, NULL);
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if (stat_loc)
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*stat_loc = (int) statusp.w_status;
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return (wait_pid);
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}
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#endif /* !HAVE_WAITPID */
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