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 34 #if defined(LIBC_SCCS) && !defined(lint) 35 static char sccsid[] = "@(#)sigcompat.c 8.1 (Berkeley) 6/2/93"; 36 #endif /* LIBC_SCCS and not lint */ 37 #include <sys/cdefs.h> 38 __FBSDID("$FreeBSD$"); 39 40 #include "namespace.h" 41 #include <sys/param.h> 42 #include <signal.h> 43 #include "un-namespace.h" 44 #include "libc_private.h" 45 46 int 47 sigvec(signo, sv, osv) 48 int signo; 49 struct sigvec *sv, *osv; 50 { 51 struct sigaction sa, osa; 52 struct sigaction *sap, *osap; 53 int ret; 54 55 if (sv != NULL) { 56 sa.sa_handler = sv->sv_handler; 57 sa.sa_flags = sv->sv_flags ^ SV_INTERRUPT; 58 sigemptyset(&sa.sa_mask); 59 sa.sa_mask.__bits[0] = sv->sv_mask; 60 sap = &sa; 61 } else 62 sap = NULL; 63 osap = osv != NULL ? &osa : NULL; 64 ret = _sigaction(signo, sap, osap); 65 if (ret == 0 && osv != NULL) { 66 osv->sv_handler = osa.sa_handler; 67 osv->sv_flags = osa.sa_flags ^ SV_INTERRUPT; 68 osv->sv_mask = osa.sa_mask.__bits[0]; 69 } 70 return (ret); 71 } 72 73 int 74 sigsetmask(mask) 75 int mask; 76 { 77 sigset_t set, oset; 78 int n; 79 80 sigemptyset(&set); 81 set.__bits[0] = mask; 82 n = _sigprocmask(SIG_SETMASK, &set, &oset); 83 if (n) 84 return (n); 85 return (oset.__bits[0]); 86 } 87 88 int 89 sigblock(mask) 90 int mask; 91 { 92 sigset_t set, oset; 93 int n; 94 95 sigemptyset(&set); 96 set.__bits[0] = mask; 97 n = _sigprocmask(SIG_BLOCK, &set, &oset); 98 if (n) 99 return (n); 100 return (oset.__bits[0]); 101 } 102 103 int 104 sigpause(mask) 105 int mask; 106 { 107 sigset_t set; 108 109 sigemptyset(&set); 110 set.__bits[0] = mask; 111 return (_sigsuspend(&set)); 112 } 113