#include <signal.h>
#include <stdio.h>
#include <stdlib.h>  

int done=0;

static void sig_usr(int signo)	
{
	done = 1;
  return;
}

int main(void)
{
	if (signal(SIGINT, sig_usr) == SIG_ERR)
		exit(-1);

	while (!done)
		pause();
  sleep(2);
  printf("Llegó Control-C\n");
  exit(0);
}