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 * $FreeBSD: src/lib/libc/compat-43/sigcompat.c,v 1.7 2000/01/27 23:06:04 jasone Exp $ 30 * $DragonFly: src/lib/libc/compat-43/sigcompat.c,v 1.3 2005/01/31 22:29:03 dillon Exp $ 31 */ 32 33 #include "namespace.h" 34 #include <sys/param.h> 35 #include <signal.h> 36 #include "un-namespace.h" 37 #include "libc_private.h" 38 39 int 40 sigvec(int signo, struct sigvec *sv, struct sigvec *osv) 41 { 42 struct sigaction sa, osa; 43 struct sigaction *sap, *osap; 44 int ret; 45 46 if (sv != NULL) { 47 sa.sa_handler = sv->sv_handler; 48 sa.sa_flags = sv->sv_flags ^ SV_INTERRUPT; 49 sigemptyset(&sa.sa_mask); 50 sa.sa_mask.__bits[0] = sv->sv_mask; 51 sap = &sa; 52 } else 53 sap = NULL; 54 osap = osv != NULL ? &osa : NULL; 55 ret = _sigaction(signo, sap, osap); 56 if (ret == 0 && osv != NULL) { 57 osv->sv_handler = osa.sa_handler; 58 osv->sv_flags = osa.sa_flags ^ SV_INTERRUPT; 59 osv->sv_mask = osa.sa_mask.__bits[0]; 60 } 61 return (ret); 62 } 63 64 int 65 sigsetmask(int mask) 66 { 67 sigset_t set, oset; 68 int n; 69 70 sigemptyset(&set); 71 set.__bits[0] = mask; 72 n = _sigprocmask(SIG_SETMASK, &set, &oset); 73 if (n) 74 return (n); 75 return (oset.__bits[0]); 76 } 77 78 int 79 sigblock(int mask) 80 { 81 sigset_t set, oset; 82 int n; 83 84 sigemptyset(&set); 85 set.__bits[0] = mask; 86 n = _sigprocmask(SIG_BLOCK, &set, &oset); 87 if (n) 88 return (n); 89 return (oset.__bits[0]); 90 } 91 92 int 93 sigpause(int mask) 94 { 95 sigset_t set; 96 97 sigemptyset(&set); 98 set.__bits[0] = mask; 99 return (_sigsuspend(&set)); 100 } 101