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