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/*
* 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 sigaddset(
sigset_t *set,
int signo
)
{
if ( !set )
rtems_set_errno_and_return_minus_one( EINVAL );
if ( !signo )
rtems_set_errno_and_return_minus_one( EINVAL );
if ( !is_valid_signo(signo) )
rtems_set_errno_and_return_minus_one( EINVAL );
*set |= signo_to_mask(signo);
return 0;
}
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