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Annotation of src/usr.bin/rdist/signal.c, Revision 1.4

1.3       deraadt     1: /*     $OpenBSD$       */
                      2:
1.1       dm          3: /*
                      4:  * Copyright (c) 1993 Regents of the University of California.
                      5:  * All rights reserved.
                      6:  *
                      7:  * Redistribution and use in source and binary forms, with or without
                      8:  * modification, are permitted provided that the following conditions
                      9:  * are met:
                     10:  * 1. Redistributions of source code must retain the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer.
                     12:  * 2. Redistributions in binary form must reproduce the above copyright
                     13:  *    notice, this list of conditions and the following disclaimer in the
                     14:  *    documentation and/or other materials provided with the distribution.
                     15:  * 3. All advertising materials mentioning features or use of this software
                     16:  *    must display the following acknowledgement:
                     17:  *     This product includes software developed by the University of
                     18:  *     California, Berkeley and its contributors.
                     19:  * 4. Neither the name of the University nor the names of its contributors
                     20:  *    may be used to endorse or promote products derived from this software
                     21:  *    without specific prior written permission.
                     22:  *
                     23:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     24:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     25:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     26:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     27:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     28:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     29:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     30:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     31:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     32:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     33:  * SUCH DAMAGE.
                     34:  */
                     35:
                     36: #ifndef lint
1.4     ! millert    37: #if 0
1.1       dm         38: static char RCSid[] =
1.4     ! millert    39: "$From: signal.c,v 6.1 1993/07/15 22:47:30 mcooper Exp mcooper $";
        !            40: #else
        !            41: static char RCSid[] =
        !            42: "$OpenBSD$";
        !            43: #endif
1.1       dm         44:
                     45: static char sccsid[] = "@(#)signal.c";
                     46:
                     47: static char copyright[] =
                     48: "@(#) Copyright (c) 1993 Regents of the University of California.\n\
                     49:  All rights reserved.\n";
                     50: #endif /* not lint */
                     51:
                     52: #include "defs.h"
                     53:
                     54: #if     defined(NEED_SIGBLOCK)
                     55: static int current_mask = 0;
                     56:
                     57: int sigblock(mask)
                     58: int mask;
                     59: {
                     60:     int sig;
                     61:     int m;
                     62:     int oldmask;
                     63:
                     64:     oldmask = current_mask;
                     65:     for ( sig = 1, m = 1; sig <= MAXSIG; sig++, m <<= 1 ) {
                     66:         if (mask & m)  {
                     67:             sighold(sig);
                     68:             current_mask |= m;
                     69:         }
                     70:     }
                     71:     return oldmask;
                     72: }
                     73: #endif /* NEED_SIGBLOCK */
                     74:
                     75: #if    defined(NEED_SIGSETMASK)
                     76: int sigsetmask(mask)
                     77: int mask;
                     78: {
                     79:     int sig;
                     80:     int m;
                     81:     int oldmask;
                     82:
                     83:     oldmask = current_mask;
                     84:     for ( sig = 1, m = 1; sig <= MAXSIG; sig++, m <<= 1 ) {
                     85:         if (mask & m)  {
                     86:             sighold(sig);
                     87:             current_mask |= m;
                     88:         }
                     89:         else  {
                     90:             sigrelse(sig);
                     91:             current_mask &= ~m;
                     92:         }
                     93:     }
                     94:     return oldmask;
                     95: }
                     96: #endif /* NEED_SIGSETMASK */