| Amit Daniel Kachhap | e6a01f5 | 2011-07-20 11:45:59 +0530 | [diff] [blame] | 1 | /**************************************************************************** |
| 2 | * Copyright (c) 1998-2002,2003 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 | * and: Thomas E. Dickey 1996-2003 * |
| 33 | ****************************************************************************/ |
| 34 | |
| 35 | /* This file provides sigaction() emulation using sigvec() */ |
| 36 | /* Use only if this is non POSIX system */ |
| 37 | |
| 38 | MODULE_ID("$Id: sigaction.c,v 1.14 2003/12/07 01:06:52 tom Exp $") |
| 39 | |
| 40 | static int |
| 41 | _nc_sigaction(int sig, sigaction_t * sigact, sigaction_t * osigact) |
| 42 | { |
| 43 | return sigvec(sig, sigact, osigact); |
| 44 | } |
| 45 | |
| 46 | static int |
| 47 | _nc_sigemptyset(sigset_t * mask) |
| 48 | { |
| 49 | *mask = 0; |
| 50 | return 0; |
| 51 | } |
| 52 | |
| 53 | static int |
| 54 | _nc_sigprocmask(int mode, sigset_t * mask, sigset_t * omask) |
| 55 | { |
| 56 | sigset_t current = sigsetmask(0); |
| 57 | |
| 58 | if (omask) |
| 59 | *omask = current; |
| 60 | |
| 61 | if (mode == SIG_BLOCK) |
| 62 | current |= *mask; |
| 63 | else if (mode == SIG_UNBLOCK) |
| 64 | current &= ~*mask; |
| 65 | else if (mode == SIG_SETMASK) |
| 66 | current = *mask; |
| 67 | |
| 68 | sigsetmask(current); |
| 69 | return 0; |
| 70 | } |
| 71 | |
| 72 | static int |
| 73 | _nc_sigaddset(sigset_t * mask, int sig) |
| 74 | { |
| 75 | *mask |= sigmask(sig); |
| 76 | return 0; |
| 77 | } |
| 78 | |
| 79 | /* not used in lib_tstp.c */ |
| 80 | #if 0 |
| 81 | static int |
| 82 | _nc_sigsuspend(sigset_t * mask) |
| 83 | { |
| 84 | return sigpause(*mask); |
| 85 | } |
| 86 | |
| 87 | static int |
| 88 | _nc_sigdelset(sigset_t * mask, int sig) |
| 89 | { |
| 90 | *mask &= ~sigmask(sig); |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | static int |
| 95 | _nc_sigismember(sigset_t * mask, int sig) |
| 96 | { |
| 97 | return (*mask & sigmask(sig)) != 0; |
| 98 | } |
| 99 | #endif |