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53 lines
1.8 KiB
53 lines
1.8 KiB
/* |
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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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