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. 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 * $FreeBSD: src/lib/libc/compat-43/sigcompat.c,v 1.7 2000/01/27 23:06:04 jasone Exp $ 34 * $DragonFly: src/lib/libc/compat-43/sigcompat.c,v 1.3 2005/01/31 22:29:03 dillon Exp $ 35 */ 36 37 #include "namespace.h" 38 #include <sys/param.h> 39 #include <signal.h> 40 #include "un-namespace.h" 41 #include "libc_private.h" 42 43 int 44 sigvec(int signo, struct sigvec *sv, struct sigvec *osv) 45 { 46 struct sigaction sa, osa; 47 struct sigaction *sap, *osap; 48 int ret; 49 50 if (sv != NULL) { 51 sa.sa_handler = sv->sv_handler; 52 sa.sa_flags = sv->sv_flags ^ SV_INTERRUPT; 53 sigemptyset(&sa.sa_mask); 54 sa.sa_mask.__bits[0] = sv->sv_mask; 55 sap = &sa; 56 } else 57 sap = NULL; 58 osap = osv != NULL ? &osa : NULL; 59 ret = _sigaction(signo, sap, osap); 60 if (ret == 0 && osv != NULL) { 61 osv->sv_handler = osa.sa_handler; 62 osv->sv_flags = osa.sa_flags ^ SV_INTERRUPT; 63 osv->sv_mask = osa.sa_mask.__bits[0]; 64 } 65 return (ret); 66 } 67 68 int 69 sigsetmask(int mask) 70 { 71 sigset_t set, oset; 72 int n; 73 74 sigemptyset(&set); 75 set.__bits[0] = mask; 76 n = _sigprocmask(SIG_SETMASK, &set, &oset); 77 if (n) 78 return (n); 79 return (oset.__bits[0]); 80 } 81 82 int 83 sigblock(int mask) 84 { 85 sigset_t set, oset; 86 int n; 87 88 sigemptyset(&set); 89 set.__bits[0] = mask; 90 n = _sigprocmask(SIG_BLOCK, &set, &oset); 91 if (n) 92 return (n); 93 return (oset.__bits[0]); 94 } 95 96 int 97 sigpause(int mask) 98 { 99 sigset_t set; 100 101 sigemptyset(&set); 102 set.__bits[0] = mask; 103 return (_sigsuspend(&set)); 104 } 105