/* $OpenBSD: sigaction.c,v 1.4 2001/01/22 18:01:48 millert Exp $ */ /**************************************************************************** * Copyright (c) 1998,2000 Free Software Foundation, Inc. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the * * "Software"), to deal in the Software without restriction, including * * without limitation the rights to use, copy, modify, merge, publish, * * distribute, distribute with modifications, sublicense, and/or sell * * copies of the Software, and to permit persons to whom the Software is * * furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included * * in all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * * * * Except as contained in this notice, the name(s) of the above copyright * * holders shall not be used in advertising or otherwise to promote the * * sale, use or other dealings in this Software without prior written * * authorization. * ****************************************************************************/ /**************************************************************************** * Author: Zeyd M. Ben-Halim 1992,1995 * * and: Eric S. Raymond * ****************************************************************************/ #include #include #include /* This file provides sigaction() emulation using sigvec() */ /* Use only if this is non POSIX system */ #if !HAVE_SIGACTION && HAVE_SIGVEC MODULE_ID("$From: sigaction.c,v 1.11 2000/12/10 02:43:28 tom Exp $") NCURSES_EXPORT(int) sigaction (int sig, sigaction_t * sigact, sigaction_t * osigact) { return sigvec(sig, sigact, osigact); } NCURSES_EXPORT(int) sigemptyset (sigset_t * mask) { *mask = 0; return 0; } NCURSES_EXPORT(int) sigprocmask (int mode, sigset_t * mask, sigset_t * omask) { sigset_t current = sigsetmask(0); if (omask) *omask = current; if (mode == SIG_BLOCK) current |= *mask; else if (mode == SIG_UNBLOCK) current &= ~*mask; else if (mode == SIG_SETMASK) current = *mask; sigsetmask(current); return 0; } NCURSES_EXPORT(int) sigsuspend(sigset_t * mask) { return sigpause(*mask); } NCURSES_EXPORT(int) sigdelset (sigset_t * mask, int sig) { *mask &= ~sigmask(sig); return 0; } NCURSES_EXPORT(int) sigaddset (sigset_t * mask, int sig) { *mask |= sigmask(sig); return 0; } NCURSES_EXPORT(int) sigismember (sigset_t * mask, int sig) { return (*mask & sigmask(sig)) != 0; } #else extern NCURSES_EXPORT(void) _nc_sigaction(void); /* quiet's gcc warning */ NCURSES_EXPORT(void) _nc_sigaction(void) { } /* nonempty for strict ANSI compilers */ #endif