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) 08/26/89"; 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 } 67