#include<unistd.h>
#include<stdio.h>
#include<stdlib.h>
#include<fcntl.h>
#include<string.h>

char debug_mode = 0;

int main(int argc, char ** argv){
	if(argc > 1 && !strcmp(argv[1], "-d"))
		debug_mode = 1;

	if(!debug_mode){
		// Become a daemon
		pid_t pid = fork();
		if(pid) { // We're the parent, because pid is the pid of the child
			return 0;	
		}
		setsid();	
	}

	int log_fd = open("daemon_log", O_CREAT | O_TRUNC | O_WRONLY, 0644);
	if(log_fd == -1){
		perror("daemon_log");
		return 1;
	} else if(debug_mode)
		printf("Logging to daemon_log\n");

	dup2(log_fd, 1);
	dup2(log_fd, 2);

	printf("Starting daemon\n");
	for(;;){
		printf("beep\n");
		sleep(5);
	}

	return 0;
}