Add libusbmuxd_version() function to interface

include/usbmuxd.h

@@ -334,6 +334,13 @@ USBMUXD_API void libusbmuxd_set_use_inotify(int set);
 
 USBMUXD_API void libusbmuxd_set_debug_level(int level);
 
+/**
+ * Returns a static string of the libusbmuxd version.
+ *
+ * @return The libusbmuxd version as static ascii string
+ */
+USBMUXD_API const char* libusbmuxd_version();
+
 #ifdef __cplusplus
 }
 #endif

src/libusbmuxd.c

@@ -1803,3 +1803,11 @@ void libusbmuxd_set_debug_level(int level)
 	libusbmuxd_debug = level;
 	socket_set_verbose(level);
 }
+
+const char* libusbmuxd_version()
+{
+#ifndef PACKAGE_VERSION
+#error PACKAGE_VERSION is not defined
+#endif
+	return PACKAGE_VERSION;
+}