# define	SIG_DFL		0
# define	SIG_IGN	 	1

# define	SIGHUP		1
# define	SIGINT		2
# define	SIGQUIT		3
# define	SIGILL		4
# define	SIGTRAP		5
# define	SIGBACK		6	/* control - b typed */
# define	SIGTINT		7	/* tty input record available */
# define	SIGFPE		8	/* floating point exception */
# define	SIGKILL		9
# define	SIGBUS		10
# define	SEGSIGV		11
# define	SIGSYS		12
# define	SIGPIPE		13
# define	SIGALRM		14
# define	SIGTERM		15

# define	NSIG		15