1 #include <unistd.h>
2 #include <signal.h>
3 #include <string.h>
4 #include <stdio.h>
5 
6 void handle_signal (int sig)
7 {
8 	printf ("Signal: %d\n", sig);
9 }
10 
11 int main (void)
12 {
13 	struct sigaction act;
14 
15 	memset (&act, 0, sizeof (act));
16 	act.sa_handler = handle_signal;
17 	sigaction (SIGINT, &act, NULL);
18 
19 	for (int i = 0; i < 3; ++i) {
20 		puts ("sleeping...");
21 		sleep (5);
22 	}
23 }