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Annotation of 43BSDReno/lib/libc/compat-43/sigcompat.c, revision 1.1.1.1

1.1       root        1: /*
                      2:  * Copyright (c) 1989 The 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[] = "@(#)sigcompat.c        5.2 (Berkeley) 6/1/90";
                     22: #endif /* LIBC_SCCS and not lint */
                     23: 
                     24: #include <sys/param.h>
                     25: #include <sys/signal.h>
                     26: 
                     27: sigvec(signo, sv, osv)
                     28:        int signo;
                     29:        struct sigvec *sv, *osv;
                     30: {
                     31:        int ret;
                     32: 
                     33:        if (sv)
                     34:                sv->sv_flags ^= SV_INTERRUPT;   /* !SA_INTERRUPT */
                     35:        ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv);
                     36:        if (ret == 0 && osv)
                     37:                osv->sv_flags ^= SV_INTERRUPT;  /* !SA_INTERRUPT */
                     38:        return (ret);
                     39: }
                     40: 
                     41: sigsetmask(mask)
                     42:        int mask;
                     43: {
                     44:        int omask, n;
                     45: 
                     46:        n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
                     47:        if (n)
                     48:                return (n);
                     49:        return (omask);
                     50: }
                     51: 
                     52: sigblock(mask)
                     53:        int mask;
                     54: {
                     55:        int omask, n;
                     56: 
                     57:        n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
                     58:        if (n)
                     59:                return (n);
                     60:        return (omask);
                     61: }
                     62: 
                     63: sigpause(mask)
                     64:        int mask;
                     65: {
                     66: 
                     67:        return (sigsuspend((sigset_t *)&mask));
                     68: }

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