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a30ce26d | 1 | /* |
bebdb04a | 2 | * Copyright (c) 2000 Ben Lindstrom. All rights reserved. |
3 | * | |
a30ce26d | 4 | * Redistribution and use in source and binary forms, with or without |
5 | * modification, are permitted provided that the following conditions | |
6 | * are met: | |
7 | * 1. Redistributions of source code must retain the above copyright | |
8 | * notice, this list of conditions and the following disclaimer. | |
9 | * 2. Redistributions in binary form must reproduce the above copyright | |
10 | * notice, this list of conditions and the following disclaimer in the | |
11 | * documentation and/or other materials provided with the distribution. | |
12 | * | |
13 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
14 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
15 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
16 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
17 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
18 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
19 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
20 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
21 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
22 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
23 | */ | |
24 | ||
25 | #include "includes.h" | |
26 | ||
27 | #ifndef HAVE_WAITPID | |
28 | #include <errno.h> | |
29 | #include <sys/wait.h> | |
d0127657 | 30 | #include "bsd-waitpid.h" |
a30ce26d | 31 | |
32 | pid_t | |
33 | waitpid(int pid, int *stat_loc, int options) | |
34 | { | |
35 | union wait statusp; | |
36 | pid_t wait_pid; | |
37 | ||
38 | if (pid <= 0) { | |
39 | if (pid != -1) { | |
40 | errno = EINVAL; | |
9901cb37 | 41 | return (-1); |
a30ce26d | 42 | } |
9901cb37 | 43 | /* wait4() wants pid=0 for indiscriminate wait. */ |
44 | pid = 0; | |
a30ce26d | 45 | } |
46 | wait_pid = wait4(pid, &statusp, options, NULL); | |
60a8683f | 47 | if (stat_loc) |
48 | *stat_loc = (int) statusp.w_status; | |
49 | ||
9901cb37 | 50 | return (wait_pid); |
a30ce26d | 51 | } |
52 | ||
53 | #endif /* !HAVE_WAITPID */ |