Standard library header <signal.h>

This header is part of the program support library.

Types
sig_atomic_t	the integer type that can be accessed as an atomic entity from an asynchronous signal handler (typedef)
Macros
SIGABRTSIGFPESIGILLSIGINTSIGSEGVSIGTERM	defines signal types (macro constant)
SIG_DFLSIG_IGN	defines signal handling strategies (macro constant)
SIG_ERR	error was encountered (macro constant)
Functions
signal	sets a signal handler for particular signal (function)
raise	runs the signal handler for particular signal (function)

Synopsis

typedef sig_atomic_t /* see description */;

void (*signal(int sig, void (*func)(int)))(int);
int raise(int sig);

#define SIG_DFL  /* see description */
#define SIG_ERR  /* see description */
#define SIG_IGN  /* see description */
#define SIGABRT  /* see description */
#define SIGFPE   /* see description */
#define SIGILL   /* see description */
#define SIGINT   /* see description */
#define SIGSEGV  /* see description */
#define SIGTERM  /* see description */