1
2 #include <errno.h>
3 #include <stdio.h>
4 #include <signal.h>
5 #include <stdlib.h>
6
7 static void
abend(int sig)8 abend (int sig)
9 {
10 printf ("Abended on signal %d\n", sig);
11 exit (2);
12 }
13
14 int
main(void)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 }
46