Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (c) 2000 Ben Lindstrom. All rights reserved. |
| 3 | * |
| 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> |
| 30 | #include "bsd-waitpid.h" |
| 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; |
| 41 | return (-1); |
| 42 | } |
| 43 | /* wait4() wants pid=0 for indiscriminate wait. */ |
| 44 | pid = 0; |
| 45 | } |
| 46 | wait_pid = wait4(pid, &statusp, options, NULL); |
| 47 | if (stat_loc) |
| 48 | *stat_loc = (int) statusp.w_status; |
| 49 | |
| 50 | return (wait_pid); |
| 51 | } |
| 52 | |
| 53 | #endif /* !HAVE_WAITPID */ |