1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 #pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 2. */ 27 #include "mail.h" 28 /* 29 Signal reset 30 signals that are not being ignored will be 31 caught by function f 32 i -> signal number 33 f -> signal routine 34 return 35 rc -> former signal 36 */ 37 void (*setsig(i, f))() 38 int i; 39 void (*f)(); 40 { 41 register void (*rc)(); 42 43 if ((rc = signal(i, SIG_IGN)) != (void (*)()) SIG_IGN) 44 signal(i, f); 45 return(rc); 46 } 47