1/**************************************************************************** 2 * Copyright 2020 Thomas E. Dickey * 3 * Copyright 1998-2002,2003 Free Software Foundation, Inc. * 4 * * 5 * Permission is hereby granted, free of charge, to any person obtaining a * 6 * copy of this software and associated documentation files (the * 7 * "Software"), to deal in the Software without restriction, including * 8 * without limitation the rights to use, copy, modify, merge, publish, * 9 * distribute, distribute with modifications, sublicense, and/or sell * 10 * copies of the Software, and to permit persons to whom the Software is * 11 * furnished to do so, subject to the following conditions: * 12 * * 13 * The above copyright notice and this permission notice shall be included * 14 * in all copies or substantial portions of the Software. * 15 * * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 17 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 19 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 20 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 21 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 22 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 23 * * 24 * Except as contained in this notice, the name(s) of the above copyright * 25 * holders shall not be used in advertising or otherwise to promote the * 26 * sale, use or other dealings in this Software without prior written * 27 * authorization. * 28 ****************************************************************************/ 29 30/**************************************************************************** 31 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 32 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 33 * and: Thomas E. Dickey 1996-2003 * 34 ****************************************************************************/ 35 36/* This file provides sigaction() emulation using sigvec() */ 37/* Use only if this is non POSIX system */ 38 39MODULE_ID("$Id: sigaction.c,v 1.15 2020/02/02 23:34:34 tom Exp $") 40 41static int 42_nc_sigaction(int sig, sigaction_t * sigact, sigaction_t * osigact) 43{ 44 return sigvec(sig, sigact, osigact); 45} 46 47static int 48_nc_sigemptyset(sigset_t * mask) 49{ 50 *mask = 0; 51 return 0; 52} 53 54static int 55_nc_sigprocmask(int mode, sigset_t * mask, sigset_t * omask) 56{ 57 sigset_t current = sigsetmask(0); 58 59 if (omask) 60 *omask = current; 61 62 if (mode == SIG_BLOCK) 63 current |= *mask; 64 else if (mode == SIG_UNBLOCK) 65 current &= ~*mask; 66 else if (mode == SIG_SETMASK) 67 current = *mask; 68 69 sigsetmask(current); 70 return 0; 71} 72 73static int 74_nc_sigaddset(sigset_t * mask, int sig) 75{ 76 *mask |= sigmask(sig); 77 return 0; 78} 79 80/* not used in lib_tstp.c */ 81#if 0 82static int 83_nc_sigsuspend(sigset_t * mask) 84{ 85 return sigpause(*mask); 86} 87 88static int 89_nc_sigdelset(sigset_t * mask, int sig) 90{ 91 *mask &= ~sigmask(sig); 92 return 0; 93} 94 95static int 96_nc_sigismember(sigset_t * mask, int sig) 97{ 98 return (*mask & sigmask(sig)) != 0; 99} 100#endif 101