__signal.h

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#include <ansi_compat.h>

#define NSIG			32

#define	SIGHUP     		1	/* hangup */
#define	SIGINT     		2	/* interrupt */
#define	SIGQUIT    		3	/* quit */
#define	SIGILL     		4	/* illegal instruction (not reset when caught) */
#define	SIGTRAP    		5	/* trace trap (not reset when caught) */
#define	SIGIOT     		6	/* IOT instruction */
#define	SIGEMT     		7	/* EMT instruction */
#define	SIGFPE     		8	/* floating point exception */
#define	SIGKILL    		9	/* kill (cannot be caught or ignored) */
#define	SIGBUS    		10	/* bus error */
#define	SIGSEGV   		11	/* segmentation violation */
#define	SIGSYS    		12	/* bad argument to system call */
#define	SIGPIPE   		13	/* write on a pipe with no one to read it */
#define	SIGALRM   		14	/* alarm clock */
#define	SIGTERM   		15	/* software termination signal from kill */
#define	SIGURG    		16	/* urgent condition on IO channel */
#define	SIGSTOP   		17	/* sendable stop signal not from tty */
#define	SIGTSTP   		18	/* stop signal from tty */
#define	SIGCONT   		19	/* continue a stopped process */
#define	SIGCHLD   		20	/* to parent on child stop or exit */
#define	SIGTTIN   		21	/* to readers pgrp upon background tty read */
#define	SIGTTOU   		22	/* like TTIN for output if (tp->t_local&LTOSTOP) */
#define	SIGIO     		23	/* input/output possible signal */
#define	SIGXCPU   		24	/* exceeded CPU time limit */
#define	SIGXFSZ   		25	/* exceeded file size limit */
#define	SIGVTALRM 		26	/* virtual time alarm */
#define	SIGPROF   		27	/* profiling time alarm */
#define SIGWINCH  		28	/* window size changes */
#define SIGLOST	  		29	/* Sys-V rec lock: notify user upon server crash */
#define SIGUSR1   		30	/* User signal 1 (from SysV) */
#define SIGUSR2   		31	/* User signal 2 (from SysV) */

/* Add System V signal definitions (DLB001) */
#define SIGCLD	SIGCHLD	/* System V name for SIGCHLD	*/
#define SIGABRT	SIGIOT	

typedef long 			sig_atomic_t;
typedef unsigned int	sigset_t;

struct	sigaction {
	void	 			(*sa_handler)();	/* signal handler */
	sigset_t 			sa_mask;		/* signal mask to apply */
	int	 				sa_flags;		/* see signal options below */
};

/* Defines for sigprocmask() call. POSIX.
 */
#define	SIG_BLOCK		1		/* Add these signals to block mask	*/
#define	SIG_UNBLOCK		2		/* Remove these signals from block mask */
#define	SIG_SETMASK		3		/* Set block mask to this mask		*/

#define	SIG_ERR			((void (*)())(-1))
#define	SIG_DFL			((void (*)())( 0))
#define	SIG_IGN			((void (*)())( 1))


#define	__SIGFILLSET		0xffffffff
#define	__SIGEMPTYSET		0
#define	__SIGADDSET(s,n)	((*s) |= (1 << ((n) - 1))) 
#define	__SIGDELSET(s,n)	((*s) &= ~(1 << ((n) - 1))) 
#define	__SIGISMEMBER(s,n)	((*s) & (1 << ((n) - 1)))