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Annotation of 43BSDReno/lib/libc/stdlib/abort.c, revision 1.1.1.1

1.1       root        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: (1) source distributions retain this entire copyright
                      7:  * notice and comment, and (2) distributions including binaries display
                      8:  * the following acknowledgement:  ``This product includes software
                      9:  * developed by the University of California, Berkeley and its contributors''
                     10:  * in the documentation or other materials provided with the distribution
                     11:  * and in all advertising materials mentioning features or use of this
                     12:  * software. Neither the name of the University nor the names of its
                     13:  * contributors may be used to endorse or promote products derived
                     14:  * from this software without specific prior written permission.
                     15:  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
                     16:  * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
                     18:  */
                     19: 
                     20: #if defined(LIBC_SCCS) && !defined(lint)
                     21: static char sccsid[] = "@(#)abort.c    5.10 (Berkeley) 6/1/90";
                     22: #endif /* LIBC_SCCS and not lint */
                     23: 
                     24: #include <sys/signal.h>
                     25: #include <stdlib.h>
                     26: #include <stddef.h>
                     27: 
                     28: void
                     29: abort()
                     30: {
                     31:        sigset_t mask;
                     32: 
                     33:        sigfillset(&mask);
                     34:        /*
                     35:         * don't block SIGABRT to give any handler a chance; we ignore
                     36:         * any errors -- X311J doesn't allow abort to return anyway.
                     37:         */
                     38:        sigdelset(&mask, SIGABRT);
                     39:        (void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL);
                     40:        (void)kill(getpid(), SIGABRT);
                     41: 
                     42:        /*
                     43:         * if SIGABRT ignored, or caught and the handler returns, do
                     44:         * it again, only harder.
                     45:         */
                     46:        (void)signal(SIGABRT, SIG_DFL);
                     47:        (void)sigprocmask(SIG_SETMASK, &mask, (sigset_t *)NULL);
                     48:        (void)kill(getpid(), SIGABRT);
                     49:        exit(1);
                     50: }

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