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