89e28f65b3
* signal/sighold.c (sighold): Use sigaddset and not __sigaddset. The signal number must be checked [PR libc/5004].
42 lines
1.3 KiB
C
42 lines
1.3 KiB
C
/* Add SIG to the calling process' signal mask.
|
|
Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#define __need_NULL
|
|
#include <stddef.h>
|
|
#include <signal.h>
|
|
|
|
int
|
|
sighold (sig)
|
|
int sig;
|
|
{
|
|
sigset_t set;
|
|
|
|
/* Retrieve current signal set. */
|
|
if (__sigprocmask (SIG_SETMASK, NULL, &set) < 0)
|
|
return -1;
|
|
|
|
/* Add the specified signal. */
|
|
if (sigaddset (&set, sig) < 0)
|
|
return -1;
|
|
|
|
/* Set the new mask. */
|
|
return __sigprocmask (SIG_SETMASK, &set, NULL);
|
|
}
|