1 /**************************************************************************** 2 * Copyright (c) 1998-2001,2002 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29 /**************************************************************************** 30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 ****************************************************************************/ 33 34 #include <curses.priv.h> 35 36 #include <SigAction.h> 37 38 /* This file provides sigaction() emulation using sigvec() */ 39 /* Use only if this is non POSIX system */ 40 41 #if !HAVE_SIGACTION && HAVE_SIGVEC 42 43 MODULE_ID("$Id: sigaction.c,v 1.13 2002/05/18 19:56:26 tom Exp $") 44 45 NCURSES_EXPORT(int) 46 sigaction 47 (int sig, sigaction_t * sigact, sigaction_t * osigact) 48 { 49 return sigvec(sig, sigact, osigact); 50 } 51 52 NCURSES_EXPORT(int) 53 sigemptyset 54 (sigset_t * mask) 55 { 56 *mask = 0; 57 return 0; 58 } 59 60 NCURSES_EXPORT(int) 61 sigprocmask 62 (int mode, sigset_t * mask, sigset_t * omask) 63 { 64 sigset_t current = sigsetmask(0); 65 66 if (omask) 67 *omask = current; 68 69 if (mode == SIG_BLOCK) 70 current |= *mask; 71 else if (mode == SIG_UNBLOCK) 72 current &= ~*mask; 73 else if (mode == SIG_SETMASK) 74 current = *mask; 75 76 sigsetmask(current); 77 return 0; 78 } 79 80 NCURSES_EXPORT(int) 81 sigsuspend(sigset_t * mask) 82 { 83 return sigpause(*mask); 84 } 85 86 NCURSES_EXPORT(int) 87 sigdelset 88 (sigset_t * mask, int sig) 89 { 90 *mask &= ~sigmask(sig); 91 return 0; 92 } 93 94 NCURSES_EXPORT(int) 95 sigaddset 96 (sigset_t * mask, int sig) 97 { 98 *mask |= sigmask(sig); 99 return 0; 100 } 101 102 NCURSES_EXPORT(int) 103 sigismember 104 (sigset_t * mask, int sig) 105 { 106 return (*mask & sigmask(sig)) != 0; 107 } 108 109 #else 110 extern 111 NCURSES_EXPORT(void) 112 _nc_sigaction(void); /* quiet's gcc warning */ 113 NCURSES_EXPORT(void) 114 _nc_sigaction(void) 115 { 116 } /* nonempty for strict ANSI compilers */ 117 #endif 118