Reviewing Signals

#include<string.h>
#include<signal.h>
char *strsignal(int sig);
extern const char * const sys_siglist[];
int sigfillset(sigset_t *set);
int sigdelset(sigset_t *set, int signum);

Calling strsignal() returns a pointer to a description of the signal given by signo.

sys_siglist is an array of strings containing the names of the signals supported by the system, indexed by signal number.