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568035b7 | 1 | /* Copyright (C) 1991-2013 Free Software Foundation, Inc. |
478b92f0 | 2 | This file is part of the GNU C Library. |
28f540f4 | 3 | |
478b92f0 | 4 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
28f540f4 | 8 | |
478b92f0 UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
41bdb6e2 | 12 | Lesser General Public License for more details. |
28f540f4 | 13 | |
41bdb6e2 | 14 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 PE |
15 | License along with the GNU C Library; if not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
28f540f4 | 17 | |
28f540f4 RM |
18 | #include <errno.h> |
19 | #include <sys/wait.h> | |
20 | #include <sys/types.h> | |
21 | ||
22 | ||
23 | /* Wait for a child matching PID to die. | |
24 | If PID is greater than 0, match any process whose process ID is PID. | |
25 | If PID is (pid_t) -1, match any process. | |
26 | If PID is (pid_t) 0, match any process with the | |
27 | same process group as the current process. | |
28 | If PID is less than -1, match any process whose | |
29 | process group is the absolute value of PID. | |
30 | If the WNOHANG bit is set in OPTIONS, and that child | |
31 | is not already dead, return (pid_t) 0. If successful, | |
32 | return PID and store the dead child's status in STAT_LOC. | |
33 | Return (pid_t) -1 for errors. If the WUNTRACED bit is set in OPTIONS, | |
34 | return status for stopped children; otherwise don't. */ | |
35 | pid_t | |
c4029823 | 36 | __libc_waitpid (pid_t pid, int *stat_loc, int options) |
28f540f4 RM |
37 | { |
38 | if ((options & ~(WNOHANG|WUNTRACED)) != 0) | |
39 | { | |
c4029823 | 40 | __set_errno (EINVAL); |
28f540f4 RM |
41 | return (pid_t) -1; |
42 | } | |
43 | ||
c4029823 | 44 | __set_errno (ENOSYS); |
28f540f4 RM |
45 | return (pid_t) -1; |
46 | } | |
c4029823 | 47 | weak_alias (__libc_waitpid, __waitpid) |
faea9de6 | 48 | libc_hidden_weak (__waitpid) |
c4029823 | 49 | weak_alias (__libc_waitpid, waitpid) |
28f540f4 | 50 | |
c4029823 | 51 | stub_warning (waitpid) |