Return to signal.c CVS log

Up to [CSRG BSD Unix] / 43BSDReno / lib / libc / gen

Annotation of 43BSDReno/lib/libc/gen/signal.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1985, 1989 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[] = "@(#)signal.c   5.5 (Berkeley) 6/1/90";
                     22: #endif /* LIBC_SCCS and not lint */
                     23: 
                     24: /*
                     25:  * Almost backwards compatible signal.
                     26:  */
                     27: #include <signal.h>
                     28: 
                     29: sigset_t _sigintr;             /* shared with siginterrupt */
                     30: 
                     31: sig_t
                     32: signal(s, a)
                     33:        int s;
                     34:        sig_t a;
                     35: {
                     36:        struct sigaction sa, osa;
                     37: 
                     38:        sa.sa_handler = a;
                     39:        sigemptyset(&sa.sa_mask);
                     40:        sa.sa_flags = 0;
                     41:        if (!sigismember(&_sigintr, s))
                     42:                sa.sa_flags |= SA_RESTART;
                     43:        if (sigaction(s, &sa, &osa) < 0)
                     44:                return (BADSIG);
                     45:        return (osa.sa_handler);
                     46: }

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.