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Diffstat (limited to 'cpukit/posix/src/sigismember.c')
-rw-r--r-- | cpukit/posix/src/sigismember.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/cpukit/posix/src/sigismember.c b/cpukit/posix/src/sigismember.c new file mode 100644 index 0000000000..958c5336af --- /dev/null +++ b/cpukit/posix/src/sigismember.c @@ -0,0 +1,42 @@ +/* + * 3.3.3 Manipulate Signal Sets, P1003.1b-1993, p. 69 + * + * COPYRIGHT (c) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#if HAVE_CONFIG_H +#include "config.h" +#endif + +#include <errno.h> + +#include <rtems/system.h> +#include <rtems/posix/sigset.h> +#include <rtems/seterr.h> + +int sigismember( + const sigset_t *set, + int signo +) +{ + if ( !set ) + rtems_set_errno_and_return_minus_one( EINVAL ); + + if ( !signo ) + return 0; + + if ( !is_valid_signo(signo) ) + rtems_set_errno_and_return_minus_one( EINVAL ); + + if ( *set & signo_to_mask(signo) ) + return 1; + + return 0; +} |