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Annotation of prex-old/usr/lib/posix/signal/sigcompat.c, Revision 1.1.1.1

1.1       nbrk        1: /*
                      2:  * Copyright (c) 1989, 1993
                      3:  *     The Regents of the University of California.  All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. Neither the name of the University nor the names of its contributors
                     14:  *    may be used to endorse or promote products derived from this software
                     15:  *    without specific prior written permission.
                     16:  *
                     17:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     18:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     19:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     20:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     21:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     22:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     23:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     24:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     25:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     26:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     27:  * SUCH DAMAGE.
                     28:  */
                     29:
                     30: #include <sys/param.h>
                     31: #include <signal.h>
                     32:
                     33: int
                     34: sigvec(signo, sv, osv)
                     35:        int signo;
                     36:        struct sigvec *sv, *osv;
                     37: {
                     38:        int ret;
                     39:
                     40:        if (sv)
                     41:                sv->sv_flags ^= SV_INTERRUPT;   /* !SA_INTERRUPT */
                     42:        ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv);
                     43:        if (ret == 0 && osv)
                     44:                osv->sv_flags ^= SV_INTERRUPT;  /* !SA_INTERRUPT */
                     45:        return (ret);
                     46: }
                     47:
                     48: int
                     49: sigsetmask(mask)
                     50:        int mask;
                     51: {
                     52:        int omask, n;
                     53:
                     54:        n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
                     55:        if (n)
                     56:                return (n);
                     57:        return (omask);
                     58: }
                     59:
                     60: int
                     61: sigblock(mask)
                     62:        int mask;
                     63: {
                     64:        int omask, n;
                     65:
                     66:        n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
                     67:        if (n)
                     68:                return (n);
                     69:        return (omask);
                     70: }
                     71:
                     72: int
                     73: sigpause(mask)
                     74:        int mask;
                     75: {
                     76:        return (sigsuspend((sigset_t *)&mask));
                     77: }