/*
 * daemonize and exec
 */

#include <stdlib.h>
#include <stdio.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>

#include <unistd.h>

#include "exec.c"

int main(int ac, char *av[]) {
	pid_t pid, sid;

	pid = fork();
	if (pid < 0) {
		fprintf(stderr, "fork fail!\n");
		exit(EXIT_FAILURE);
	}

	if (pid > 0) {
		exit(EXIT_SUCCESS);
	}

	umask(0);

	sid = setsid();
	if (sid < 0) {
		exit(EXIT_SUCCESS);
	}

	pid = fork();
	if (pid < 0) {
		fprintf(stderr, "fork fail!\n");
		exit(EXIT_FAILURE);
	}
	if (pid > 0) {
		/* fprintf(stderr, "pid = %d\n", pid); */
		exit(EXIT_SUCCESS);
	}

	/* reset the file descriptors */
	if (isatty(0)) {
		close(0);
		open("/dev/null", O_RDONLY);
	}
	if (isatty(1)) {
		close(0);
		open("/dev/null", O_WRONLY);
	}
	if (isatty(2)) {
		close(0);
		open("/dev/null", O_WRONLY);
	}

	if (chdir("/") < 0) {
		exit(EXIT_FAILURE);
	}

	do_exec(1, ac, av);

	/* shouldn't get here... */
	return EXIT_FAILURE;
}