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 | * | |
| 5 | * Redistribution and use in source and binary forms are permitted | |
| 6 | * provided that the above copyright notice and this paragraph are | |
| 7 | * duplicated in all such forms and that any documentation, | |
| 8 | * advertising materials, and other materials related to such | |
| 9 | * distribution and use acknowledge that the software was developed | |
| 10 | * by the University of California, Berkeley. The name of the | |
| 11 | * University may not be used to endorse or promote products derived | |
| 12 | * from this software without specific prior written permission. | |
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
| 15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
| 16 | */ | |
| 17 | ||
| 18 | #if defined(LIBC_SCCS) && !defined(lint) | |
| 19 | static char sccsid[] = "@(#)sigcompat.c 5.1 (Berkeley) %G%"; | |
| 20 | #endif /* LIBC_SCCS and not lint */ | |
| 21 | ||
| 22 | #include <sys/param.h> | |
| 23 | #include <sys/signal.h> | |
| 24 | ||
| 25 | sigvec(signo, sv, osv) | |
| 26 | int signo; | |
| 27 | struct sigvec *sv, *osv; | |
| 28 | { | |
| 29 | int ret; | |
| 30 | ||
| 31 | if (sv) | |
| 32 | sv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */ | |
| 33 | ret = sigaction(signo, (struct sigaction *)sv, (struct sigaction *)osv); | |
| 34 | if (ret == 0 && osv) | |
| 35 | osv->sv_flags ^= SV_INTERRUPT; /* !SA_INTERRUPT */ | |
| 36 | return (ret); | |
| 37 | } | |
| 38 | ||
| 39 | sigsetmask(mask) | |
| 40 | int mask; | |
| 41 | { | |
| 42 | int omask, n; | |
| 43 | ||
| 44 | n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask); | |
| 45 | if (n) | |
| 46 | return (n); | |
| 47 | return (omask); | |
| 48 | } | |
| 49 | ||
| 50 | sigblock(mask) | |
| 51 | int mask; | |
| 52 | { | |
| 53 | int omask, n; | |
| 54 | ||
| 55 | n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask); | |
| 56 | if (n) | |
| 57 | return (n); | |
| 58 | return (omask); | |
| 59 | } | |
| 60 | ||
| 61 | sigpause(mask) | |
| 62 | int mask; | |
| 63 | { | |
| 64 | ||
| 65 | return (sigsuspend((sigset_t *)&mask)); | |
| 66 | } |