signal/tst-signal.c

   1 #include <signal.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4 #include <string.h>
   5
   6 int win = 0;
   7
   8 static void
   9 handler (int sig)
  10 {
  11   printf ("Received signal %d (%s).\n", sig, strsignal(sig));
  12   win = 1;
  13 }
  14
  15 int
  16 main (void)
  17 {
  18   if (signal (SIGTERM, handler) == SIG_ERR)
  19     {
  20       perror ("signal: SIGTERM");
  21       exit (EXIT_FAILURE);
  22     }
  23
  24   puts ("Set handler.");
  25
  26   printf ("Sending myself signal %d.\n", SIGTERM);
  27   fflush (stdout);
  28
  29   if (raise (SIGTERM) < 0)
  30     {
  31       perror ("raise: SIGTERM");
  32       exit (EXIT_FAILURE);
  33     }
  34
  35   if (!win)
  36     {
  37       puts ("Didn't get any signal.  Test FAILED!");
  38       exit (EXIT_FAILURE);
  39     }
  40
  41   puts ("Got a signal.  Test succeeded.");
  42
  43   return EXIT_SUCCESS;
  44 }