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DEFINITIONS

1. main
2. gotsig

   1 /*
   2  * Copyright (c) 2007, Kohsuke Ohtani
   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. Neither the name of the author nor the names of any co-contributors
  14  *    may be used to endorse or promote products derived from this software
  15  *    without specific prior written permission.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  27  * SUCH DAMAGE.
  28  */
  30 /*
  31  * signal.c - test signal.
  32  */
  34 #include <sys/fcntl.h>
  35 #include <unistd.h>
  36 #include <signal.h>
  37 #include <stdio.h>
  38 #include <stdlib.h>
  40 static void gotsig(int sig);
  42 int
main(int argc, char *argv[])
  44 {
  45         int ttyfd;
pid_t pgrp;
printf("signal test program\n");
  50         if ((ttyfd = open("/dev/tty", O_RDWR)) == -1) {
printf("failed to open tty\n");
exit(1);
  53         }
pgrp = getpgrp();
printf("tcsetpgrp=%x\n", pgrp);
tcsetpgrp(ttyfd, pgrp);
signal(SIGHUP, gotsig);
signal(SIGINT, gotsig);
signal(SIGQUIT, gotsig);
signal(SIGTERM, gotsig);
signal(SIGTSTP, gotsig);
signal(SIGCONT, gotsig);
  63         while (1)
sleep (1);
  65         return 0;
  66 }
  68 static void
gotsig(int sig)
  70 {
printf("Got signal: %d\n", sig);
  72 }