// A demo of using signal handlers.

#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>

// a signal handler function
void sig_handler(int signo) {
  if (signo == SIGINT) {
    printf("\nIf you strike me down, I shall become more powerful than you can possibly imagine!\n");
  } else if (signo == SIGTERM) {
    printf("\nI feel a great disturbance in the Force...\n");
  }
}


int main() {

  // install the signal handler
  if (signal(SIGINT, sig_handler) < 0
      || signal(SIGTERM, sig_handler) < 0) {
    printf("error installing handler\n");
    exit(1);
  }

  while (1) {
    printf("Use the Force, Luke\n");
    getchar(); // wait for user to press enter (or anything else)
  }

  return 0;
}