fxlibc/src/libc/signal/raise.c

#include <signal.h>
#include <bits/signum.h>
#include <stdlib.h>
#include "signal_p.h"

int raise(int sig)
{
	if(sig < 0 || sig >= _NSIG)
		return 1;

	/* TODO: libc/signal: support signal masks? */
	__sighandler_t handler = signal(sig, SIG_DFL);

	if(handler == SIG_DFL) {
		/* Signals that terminate */
		if(sig == SIGINT || sig == SIGTERM) {
			exit(128 + sig);
		}
		/* Signals that abort */
		if(sig == SIGILL || sig == SIGABRT || sig == SIGFPE ||
			sig == SIGSEGV) {
			_Exit(128 + sig);
		}
	}
	else if(handler != SIG_IGN) {
		(*handler)(sig);
	}

	signal(sig, handler);
	return 0;
}