memcheck/tests/sigkill.c

   1
   2 #include <errno.h>
   3 #include <stdio.h>
   4 #include <signal.h>
   5 #include <stdlib.h>
   6
   7 static void
   8 abend (int sig)
   9 {
  10   printf ("Abended on signal %d\n", sig);
  11   exit (2);
  12 }
  13
  14 int
  15 main (void)
  16 {
  17   struct sigaction  sa;
  18
  19   int i;
  20   int rc;
  21   for (i = 1; i <= 65; i++) {
  22      // Skip signals 32 and 33, since these are used by LinuxThreads. Some
  23      // glibc versions do not invoke the sigaction system call for these
  24      // signals.
  25      // skip signals 63 and 64: some systems say "warning, ignored attempt
  26      // to catch 32 because it's used internally by Valgrind", others say
  27      // "invalid argument".
  28      if (i == 32 || i == 33 || i == 63 || i == 64) {
  29         continue;
  30      }                  // different systems
  31      sa.sa_flags   = 0;
  32      sigemptyset( &sa.sa_mask );
  33      sa.sa_handler = abend;
  34      fprintf(stderr,"setting signal %d: ", i);
  35      rc = sigaction (i /*SIGKILL*/, &sa, NULL);
  36      if (rc) perror ("");
  37      else fprintf(stderr,"Success\n");
  38      fprintf(stderr,"getting signal %d: ", i);
  39      rc = sigaction (i /*SIGKILL*/, NULL, &sa);
  40      if (rc) perror ("");
  41      else fprintf(stderr,"Success\n");
  42      fprintf(stderr,"\n");
  43   }
  44   return 0;
  45 }