add -d/--daemon option

src/main.c

@@ -35,6 +35,7 @@ static struct option tip_repo_opts[] = {
 	{ "max-clients", 1, 0, 'n' },
 	{ "redirect", 0, 0, 'r' },
 	{ "root", 1, 0, 't' },
+	{ "daemon", 0, 0, 'd' },
 	{ NULL },
 };
 
@@ -42,7 +43,8 @@ struct ev_io ev_io_server_rest;
 
 int main(int argc, char *argv[])
 {
-	int socket_rest, val;
+	int socket_rest, val, ret;
+	bool daemon = false;
 
 	openlog("tiptorrent", LOG_PID, LOG_DAEMON);
 
@@ -52,7 +54,7 @@ int main(int argc, char *argv[])
 		exit(EXIT_FAILURE);
 
 	while (1) {
-		val = getopt_long(argc, argv, "n:r", tip_repo_opts, NULL);
+		val = getopt_long(argc, argv, "n:rd", tip_repo_opts, NULL);
 		if (val < 0)
 			break;
 
@@ -70,6 +72,9 @@ int main(int argc, char *argv[])
 			case 't':
 				root = strdup(optarg);
 				break;
+			case 'd':
+				daemon = true;
+				break;
 			case '?':
 				return EXIT_FAILURE;
 			default:
@@ -77,6 +82,16 @@ int main(int argc, char *argv[])
 		}
 	}
 
+	if (daemon) {
+		ret = fork();
+		if (ret < 0) {
+			fprintf(stderr, "Failed to fork() daemon tiptorrent\n");
+			exit(EXIT_FAILURE);
+		} else if (ret > 0) {
+			exit(EXIT_SUCCESS);
+		}
+	}
+
 	socket_rest = tip_socket_server_init("9999");
 	if (socket_rest < 0) {
 		syslog(LOG_ERR, "Cannot open tiptorrent server socket\n");