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, 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. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #if defined(LIBC_SCCS) && !defined(lint) 35 /*static char *sccsid = "from: @(#)sigcompat.c 5.3 (Berkeley) 2/24/91";*/ 36 static char *rcsid = "$Id: sigcompat.c,v 1.4 1993/11/11 19:04:08 jtc Exp $"; 37 #endif /* LIBC_SCCS and not lint */ 38 39 #include <sys/param.h> 40 #include <signal.h> 41 42 int 43 sigvec(signo, sv, osv) 44 int signo; 45 struct sigvec *sv, *osv; 46 { 47 int ret; 48 49 if (sv) 50 sv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */ 51 ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv); 52 if (ret == 0 && osv) 53 osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */ 54 return (ret); 55 } 56 57 int 58 sigsetmask(mask) 59 int mask; 60 { 61 int omask, n; 62 63 n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask); 64 if (n) 65 return (n); 66 return (omask); 67 } 68 69 int 70 sigblock(mask) 71 int mask; 72 { 73 int omask, n; 74 75 n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask); 76 if (n) 77 return (n); 78 return (omask); 79 } 80 81 int 82 sigpause(mask) 83 int mask; 84 { 85 return (sigsuspend((sigset_t *)&mask)); 86 } 87