1 /**************************************************************************** 2 * Copyright (c) 1998 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 <signal.h> 37 #include <SigAction.h> 38 39 /* This file provides sigaction() emulation using sigvec() */ 40 /* Use only if this is non POSIX system */ 41 42 #if !HAVE_SIGACTION && HAVE_SIGVEC 43 44 MODULE_ID("$Id: sigaction.c,v 1.9 1999/06/19 23:05:16 tom Exp $") 45 46 int 47 sigaction (int sig, sigaction_t * sigact, sigaction_t * osigact) 48 { 49 return sigvec(sig, sigact, osigact); 50 } 51 52 int 53 sigemptyset (sigset_t * mask) 54 { 55 *mask = 0; 56 return 0; 57 } 58 59 int 60 sigprocmask (int mode, sigset_t * mask, sigset_t * omask) 61 { 62 sigset_t current = sigsetmask(0); 63 64 if (omask) *omask = current; 65 66 if (mode==SIG_BLOCK) 67 current |= *mask; 68 else if (mode==SIG_UNBLOCK) 69 current &= ~*mask; 70 else if (mode==SIG_SETMASK) 71 current = *mask; 72 73 sigsetmask(current); 74 return 0; 75 } 76 77 int 78 sigsuspend (sigset_t * mask) 79 { 80 return sigpause (*mask); 81 } 82 83 int 84 sigdelset (sigset_t * mask, int sig) 85 { 86 *mask &= ~sigmask (sig); 87 return 0; 88 } 89 90 int 91 sigaddset (sigset_t * mask, int sig) 92 { 93 *mask |= sigmask (sig); 94 return 0; 95 } 96 97 int 98 sigismember (sigset_t * mask, int sig) 99 { 100 return (*mask & sigmask (sig)) != 0; 101 } 102 103 #else 104 extern void _nc_sigaction(void); /* quiet's gcc warning */ 105 void _nc_sigaction(void) { } /* nonempty for strict ANSI compilers */ 106 #endif 107