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  }