1 /* Set the disposition of SIG to SIG_IGN. 2 Copyright (C) 1998-2022 Free Software Foundation, Inc. 3 This file is part of the GNU C Library. 4 5 The GNU C Library is free software; you can redistribute it and/or 6 modify it under the terms of the GNU Lesser General Public 7 License as published by the Free Software Foundation; either 8 version 2.1 of the License, or (at your option) any later version. 9 10 The GNU C Library is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13 Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public 16 License along with the GNU C Library; if not, see 17 <https://www.gnu.org/licenses/>. */ 18 19 #include <errno.h> 20 #define __need_NULL 21 #include <stddef.h> 22 #include <signal.h> 23 #include <string.h> /* For the real memset prototype. */ 24 #include <sigsetops.h> 25 26 int sigignore(int sig)27sigignore (int sig) 28 { 29 struct sigaction act; 30 31 act.sa_handler = SIG_IGN; 32 __sigemptyset (&act.sa_mask); 33 act.sa_flags = 0; 34 35 return __sigaction (sig, &act, NULL); 36 } 37