|  | /* Set the disposition of SIG to SIG_IGN. | 
|  | Copyright (C) 1998, 2005 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.  */ | 
|  |  | 
|  | #include <errno.h> | 
|  | #define __need_NULL | 
|  | #include <stddef.h> | 
|  | #include <signal.h> | 
|  | #include <string.h>	/* For the real memset prototype.  */ | 
|  |  | 
|  |  | 
|  | int sigignore (int sig) | 
|  | { | 
|  | struct sigaction act; | 
|  |  | 
|  | memset(&act, 0, sizeof(act)); | 
|  | act.sa_handler = SIG_IGN; | 
|  |  | 
|  | return sigaction (sig, &act, NULL); | 
|  | } |