Added version number display.

1 files changed, 20 insertions, 3 deletions

diff --git a/src/main.c b/src/main.c
index df4671e..b44d787 100644
--- a/src/main.c
+++ b/src/main.c
@@ -35,19 +35,33 @@
 
 #define DEFAULT_PORT "12345"
 
+#define OXEN_MAJOR	0
+#define OXEN_MINOR	1
+#define OXEN_PATCH	0
+
+/**
+ * Prints version number.
+ */
+static void print_version(void)
+{
+	printf("You are running oxen %d.%d.%d\n", OXEN_MAJOR, OXEN_MINOR, OXEN_PATCH);
+	exit(EXIT_SUCCESS);
+}
+
 /**
  * Print usage information
  * @param[in] name The name of the program (normally argv[0])
  */
 static void print_usage(const char* name)
 {
-	const char* usage = "Usage: %s [-u username] [-s address] [-n num_players] [-l] [-p port] [-m]\n"
+	const char* usage = "Usage: %s [-u username] [-s address] [-n num_players] [-l] [-p port] [-m] [-v]\n"
 	                    "\t-s address\t\thostname/address to connect to (client, required) or listen on (server, optional)\n"
 			    "\t-n num_players\t\tnumber of players; only on server (default: 2, max: 10)\n"
 			    "\t-l\t\t\tstart server\n"
 			    "\t-u username\t\tyour nickname in the player list (default: $USER)\n"
 			    "\t-p port\t\t\tport to use for connecting/listening (default: %s)\n"
-			    "\t-m\t\t\tdisplay the manual\n";
+			    "\t-m\t\t\tdisplay the manual\n"
+			    "\t-v\t\t\tprint version number\n";
 
 	fprintf(stderr, usage, name, DEFAULT_PORT);
 	exit(EXIT_FAILURE);
@@ -67,7 +81,7 @@ int main(int argc, char *argv[])
 	bool servermode = false;
 	data_store_t *ds = data_store();
 
-	const char* accepted = "u:s:p:n:hlm";
+	const char* accepted = "u:s:p:n:hlmv";
 	while((opt = getopt(argc, argv, accepted)) != -1)
 	{
 		switch(opt)
@@ -91,6 +105,9 @@ int main(int argc, char *argv[])
 			case 'm':
 				print_manual();
 				break;
+			case 'v':
+				print_version();
+				break;
 			case 'h': // help
 			default:
 				print_usage(argv[0]);