added command line argument parsing and daemonize option

src/desk-main.cpp

@@ -12,23 +12,72 @@
 
 #include <iostream>
 #include <cstdint>
+#include <getopt.h>
 
 using namespace std;
 using namespace desk;
 
+void print_help(void){
+
+}
+
 int main(int argc, char** argv){
+	char c;
 	uint16_t coap_port;
+	int opt_idx;
+	bool daemonize(false);
+	string config_file("/etc/desk.conf");
+
+	static struct option l_opts[] = {
+			{"config", 1, 0, 'c'},
+			{"daemon", 0, 0, 'd'},
+			{"help", 0, 0, 'h'},
+			{0, 0, 0, 0}
+	};
+
+	while(true){
+		c = getopt_long(argc, argv, "c:dh", l_opts, &opt_idx);
 
-	Config conf("/etc/desk.conf");
+		if(c == -1){
+			break;
+		}
+
+		switch(c){
+		case 'c':
+			// config
+			config_file = optarg;
+			break;
+		case 'd':
+			daemonize=true;
+			// daemon
+			break;
+		case 'h':
+			// help
+			cout << "\t-c / --config <config_file>  : config file" << endl;
+			cout << "\t-d / --daemon                : daemonize" << endl;
+			cout << "\t-h / --help                  : print help" << endl;
+			return 0;
+			break;
+		}
+	}
+
+	Config conf(config_file);
 
 	LinakDesk desk(conf);
-	CmdFrontend cf(desk);
+
+	if(!daemonize){
+		CmdFrontend cf(desk);
+	}
 
 	coap_port = conf.get("coap_port", 5678);
 	CoapFrontend cof(desk, coap_port);
 
 	desk.doDeskControl();
 
+	if(daemonize){
+		daemon(0, 0);
+	}
+
 	return 0;
 }