lib/kadm5/ipropd_common.c

   1 /*
   2  * Copyright (c) 1997 - 2007 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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 #include "iprop.h"
  35 RCSID("$Id$");
  36
  37 sig_atomic_t exit_flag;
  38
  39 static RETSIGTYPE
  40 sigterm(int sig)
  41 {
  42     exit_flag = sig;
  43 }
  44
  45 void
  46 setup_signal(void)
  47 {
  48 #ifdef HAVE_SIGACTION
  49     {
  50         struct sigaction sa;
  51
  52         sa.sa_flags = 0;
  53         sa.sa_handler = sigterm;
  54         sigemptyset(&sa.sa_mask);
  55
  56         sigaction(SIGINT, &sa, NULL);
  57         sigaction(SIGTERM, &sa, NULL);
  58         sigaction(SIGXCPU, &sa, NULL);
  59
  60         sa.sa_handler = SIG_IGN;
  61         sigaction(SIGPIPE, &sa, NULL);
  62     }
  63 #else
  64     signal(SIGINT, sigterm);
  65     signal(SIGTERM, sigterm);
  66 #ifndef NO_SIGXCPU
  67     signal(SIGXCPU, sigterm);
  68 #endif
  69 #ifndef NO_SIGPIPE
  70     signal(SIGPIPE, SIG_IGN);
  71 #endif
  72 #endif
  73 }