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c4029823 | 1 | /* Copyright (C) 1991, 1996 Free Software Foundation, Inc. |
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2 | This file is part of the GNU C Library. |
3 | ||
4 | The GNU C Library is free software; you can redistribute it and/or | |
5 | modify it under the terms of the GNU Library General Public License as | |
6 | published by the Free Software Foundation; either version 2 of the | |
7 | License, or (at your option) any later version. | |
8 | ||
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 | |
12 | Library General Public License for more details. | |
13 | ||
14 | You should have received a copy of the GNU Library General Public | |
15 | License along with the GNU C Library; see the file COPYING.LIB. If | |
16 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
17 | Cambridge, MA 02139, USA. */ | |
18 | ||
19 | #include "sigsetops.h" | |
20 | ||
21 | /* Return 1 if SIGNO is in SET, 0 if not. */ | |
22 | int | |
c4029823 UD |
23 | sigismember (set, signo) |
24 | const sigset_t *set; | |
25 | int signo; | |
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26 | { |
27 | if (set == NULL || signo <= 0 || signo >= NSIG) | |
28 | { | |
c4029823 | 29 | __set_errno (EINVAL); |
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30 | return -1; |
31 | } | |
32 | ||
33 | return __sigismember (set, signo); | |
34 | } |