2.11BSD#431 - /usr/src/lib/libc/compat-43/sigcompat.c

   1: /*
   2:  * Copyright (c) 1989, 1993
   3:  *	The Regents of the University of California.  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: #if defined(LIBC_SCCS) && !defined(lint)
  35: static char sccsid[] = "@(#)sigcompat.c	8.1.1 (2.11BSD) 1997/8/28";
  36: #endif /* LIBC_SCCS and not lint */
  37: 
  38: #include <sys/param.h>
  39: #include <signal.h>
  40: 
  41: sigvec(signo, sv, osv)
  42:     int signo;
  43:     register 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: long
  56: sigsetmask(mask)
  57:     long mask;
  58: {
  59:     long omask;
  60:     int n;
  61: 
  62:     n = sigprocmask(SIG_SETMASK, (sigset_t *) &mask, (sigset_t *) &omask);
  63:     if (n)
  64:         return((long)n);
  65:     return(omask);
  66: }
  67: 
  68: long
  69: sigblock(mask)
  70:     long mask;
  71: {
  72:     long omask;
  73:     int n;
  74: 
  75:     n = sigprocmask(SIG_BLOCK, (sigset_t *) &mask, (sigset_t *) &omask);
  76:     if (n)
  77:         return((long)n);
  78:     return(omask);
  79: }
  80: 
  81: sigpause(mask)
  82:     long mask;
  83: {
  84:     return(sigsuspend((sigset_t *)&mask));
  85: }

Defined functions

Defined variables