Annotation of src/usr.bin/rdist/signal.c, Revision 1.1
1.1 ! dm 1: /*
! 2: * Copyright (c) 1993 Regents of the University of California.
! 3: * All rights reserved.
! 4: *
! 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.
! 32: */
! 33:
! 34: #ifndef lint
! 35: static char RCSid[] =
! 36: "$Id: signal.c,v 6.1 1993/07/15 22:47:30 mcooper Exp mcooper $";
! 37:
! 38: static char sccsid[] = "@(#)signal.c";
! 39:
! 40: static char copyright[] =
! 41: "@(#) Copyright (c) 1993 Regents of the University of California.\n\
! 42: All rights reserved.\n";
! 43: #endif /* not lint */
! 44:
! 45: #include "defs.h"
! 46:
! 47: #if defined(NEED_SIGBLOCK)
! 48: static int current_mask = 0;
! 49:
! 50: int sigblock(mask)
! 51: int mask;
! 52: {
! 53: int sig;
! 54: int m;
! 55: int oldmask;
! 56:
! 57: oldmask = current_mask;
! 58: for ( sig = 1, m = 1; sig <= MAXSIG; sig++, m <<= 1 ) {
! 59: if (mask & m) {
! 60: sighold(sig);
! 61: current_mask |= m;
! 62: }
! 63: }
! 64: return oldmask;
! 65: }
! 66: #endif /* NEED_SIGBLOCK */
! 67:
! 68: #if defined(NEED_SIGSETMASK)
! 69: int sigsetmask(mask)
! 70: int mask;
! 71: {
! 72: int sig;
! 73: int m;
! 74: int oldmask;
! 75:
! 76: oldmask = current_mask;
! 77: for ( sig = 1, m = 1; sig <= MAXSIG; sig++, m <<= 1 ) {
! 78: if (mask & m) {
! 79: sighold(sig);
! 80: current_mask |= m;
! 81: }
! 82: else {
! 83: sigrelse(sig);
! 84: current_mask &= ~m;
! 85: }
! 86: }
! 87: return oldmask;
! 88: }
! 89: #endif /* NEED_SIGSETMASK */