projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| b1a3411a MK |
1 | /* |
| 2 | * Copyright (c) 1989 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| c0567266 KB |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions | |
| 7 | * are met: | |
| 8 | * 1. Redistributions of source code must retain the above copyright | |
| 9 | * notice, this list of conditions and the following disclaimer. | |
| 10 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 | * notice, this list of conditions and the following disclaimer in the | |
| 12 | * documentation and/or other materials provided with the distribution. | |
| 13 | * 3. All advertising materials mentioning features or use of this software | |
| 14 | * must display the following acknowledgement: | |
| 15 | * This product includes software developed by the University of | |
| 16 | * California, Berkeley and its contributors. | |
| 17 | * 4. Neither the name of the University nor the names of its contributors | |
| 18 | * may be used to endorse or promote products derived from this software | |
| 19 | * without specific prior written permission. | |
| 20 | * | |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 22 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 25 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 26 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 27 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 28 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 29 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 30 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 31 | * SUCH DAMAGE. | |
| b1a3411a MK |
32 | */ |
| 33 | ||
| 34 | #if defined(LIBC_SCCS) && !defined(lint) | |
| af359dea | 35 | static char sccsid[] = "@(#)sigcompat.c 5.3 (Berkeley) 2/24/91"; |
| b1a3411a MK |
36 | #endif /* LIBC_SCCS and not lint */ |
| 37 | ||
| 38 | #include <sys/param.h> | |
| 3d26fdf0 | 39 | #include <signal.h> |
| b1a3411a MK |
40 | |
| 41 | sigvec(signo, sv, osv) | |
| 42 | int signo; | |
| 43 | struct sigvec *sv, *osv; | |
| 44 | { | |
| 45 | int ret; | |
| 46 | ||
| 47 | if (sv) | |
| 48 | sv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */ | |
| 49 | ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv); | |
| 50 | if (ret == 0 && osv) | |
| 51 | osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */ | |
| 52 | return (ret); | |
| 53 | } | |
| 54 | ||
| 55 | sigsetmask(mask) | |
| 56 | int mask; | |
| 57 | { | |
| 58 | int omask, n; | |
| 59 | ||
| 60 | n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask); | |
| 61 | if (n) | |
| 62 | return (n); | |
| 63 | return (omask); | |
| 64 | } | |
| 65 | ||
| 66 | sigblock(mask) | |
| 67 | int mask; | |
| 68 | { | |
| 69 | int omask, n; | |
| 70 | ||
| 71 | n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask); | |
| 72 | if (n) | |
| 73 | return (n); | |
| 74 | return (omask); | |
| 75 | } | |
| 76 | ||
| 77 | sigpause(mask) | |
| 78 | int mask; | |
| 79 | { | |
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80 | return (sigsuspend((sigset_t *)&mask)); |
| 81 | } |