1 /* 2 * Copyright (c) 1985 Regents of the University of California. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms are permitted 6 * provided that the above copyright notice and this paragraph are 7 * duplicated in all such forms and that any documentation, 8 * advertising materials, and other materials related to such 9 * distribution and use acknowledge that the software was developed 10 * by the University of California, Berkeley. The name of the 11 * University may not be used to endorse or promote products derived 12 * from this software without specific prior written permission. 13 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 14 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 15 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 16 */ 17 18 #if defined(LIBC_SCCS) && !defined(lint) 19 static char sccsid[] = "@(#)abort.c 5.9 (Berkeley) 05/17/90"; 20 #endif /* LIBC_SCCS and not lint */ 21 22 #include <sys/signal.h> 23 #include <stdlib.h> 24 #include <stddef.h> 25 26 void 27 abort() 28 { 29 sigset_t mask; 30 31 sigfillset(&mask); 32 /* 33 * don't block SIGABRT to give any handler a chance; we ignore 34 * any errors -- X311J doesn't allow abort to return anyway. 35 */ 36 sigdelset(&mask, SIGABRT); 37 (void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL); 38 (void)kill(getpid(), SIGABRT); 39 40 /* 41 * if SIGABRT ignored, or caught and the handler returns, do 42 * it again, only harder. 43 */ 44 (void)signal(SIGABRT, SIG_DFL); 45 (void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL); 46 (void)kill(getpid(), SIGABRT); 47 exit(1); 48 } 49