#include <stdio.h>
#include <stdlib.h>
 
#define __USE_GNU
#include <string.h>
 
#include <signal.h>
 
int main(void) {
    char *sig_p = strsignal(SIGKILL);
 
    printf("signal %d is %s\n", SIGKILL, sig_p);
 
    psignal(SIGKILL, "death and decay");
 
    return 0;
}