projects / apple / libc.git / blame
| Commit | Line | Data |
|---|---|---|
| 5b2abdfb | 1 | /* |
| 9385eb3d | 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. |
| 5b2abdfb A |
3 | * |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| 734aad71 A |
6 | * This file contains Original Code and/or Modifications of Original Code |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 12 | * | |
| 13 | * The Original Code and all software distributed under the License are | |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 5b2abdfb A |
15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 734aad71 A |
17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 5b2abdfb A |
20 | * |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 5b2abdfb | 23 | |
| 59e0d9fe A |
24 | /* |
| 25 | * bsd_signal() function, per POIX 1003.1-2003 | |
| 26 | */ | |
| 27 | #include <sys/signal.h> | |
| 28 | ||
| 29 | void | |
| 30 | (*bsd_signal(int sig, void (*func)(int)))(int) | |
| 31 | { | |
| 32 | struct sigaction act, oact; | |
| 33 | ||
| 34 | ||
| 35 | act.sa_handler = func; | |
| 36 | act.sa_flags = SA_RESTART; | |
| 37 | ||
| 38 | sigemptyset(&act.sa_mask); | |
| 39 | sigaddset(&act.sa_mask, sig); | |
| 40 | if (sigaction(sig, &act, &oact) == -1) | |
| 41 | return(SIG_ERR); | |
| 5b2abdfb | 42 | |
| 59e0d9fe A |
43 | return(oact.sa_handler); |
| 44 | } |