--- Urlader/urlib.h	2012/01/02 09:23:04	1.2
+++ Urlader/urlib.h	2012/01/03 10:37:45	1.3
@@ -25,7 +25,7 @@
   F_NULL = 0
 };
 
-#define TAIL_MAGIC "sChMoRPAcK_0"
+#define TAIL_MAGIC "ScHmOrp_PaCk_000"
 
 struct u_pack_hdr
 {
@@ -39,9 +39,12 @@
 #define u_32(ptr) (((ptr)[0] << 24) | ((ptr)[1] << 16) | ((ptr)[2] << 8) | (ptr)[3])
 
 struct u_pack_tail {
-  unsigned char max_filesize[4];
-  unsigned char size[4];
-  char magic[12];
+  unsigned char max_uncompressed[4]; /* maximum uncompressed file size */
+  unsigned char size[4]; /* how many bytes to seke backwards from end(!) of tail */
+  unsigned char reserved[8]; /* must be 0 */
+  char magic[16];
+  char md5_pack[16]; /* md5(pack) or 0, if there is no checksum */
+  char md5_file[16]; /* md5(urlader) or 0, if there is no checksum */
 };
 
 #endif