Fixed the command IDs. Prior to this change the command IDs were using the 4 letter code to generate the ID rather than the reversed 4 letter code.

Author: dbonafilia

filesync_protocol.txt

@@ -8,10 +8,13 @@ Message Format:
     directory or symlink.
   The command here is referred to as 'id' in the code and the 4-letter codes
     are prefixed by ID_, eg ID_STAT.
+  The command IDs are found by reversing the 4 letter command codes and
+    converting them to hexadecimal.
+
 
   STAT:
     request:
-      u32 command = 'STAT' == 0x53544154
+      u32 command = 'STAT' == 0x54415453
       u32 size = len(filename) < 1024
       u8 data[size] = filename (no null)
 
@@ -24,58 +27,58 @@ Message Format:
 
   LIST:
     request:
-      u32 command = 'LIST' == 0x4C495354
+      u32 command = 'LIST' == 0x5453494C
       u32 size = len(path) < 1024
       u8 data[size] = path (no null)
 
     response:
     for each filename in listing of path:
       struct stat st = lstat(filename)
-      u32 command = 'DENT' == 0x44454E54
+      u32 command = 'DENT' == 0x544E4544
       u32 mode = st.st_mode
       u32 size = st.st_size
       u32 time = st.st_mtime
       u32 namelen = len(filename)
       u8 data[namelen] = filename
 
     done (device -> host):
-      u32 command = 'DONE' == 0x444F4E45
+      u32 command = 'DONE' == 0x454E4F44
       u32[4] = 0
 
   SEND:
     struct stat st = lstat(filename)
     request:
       fileinfo = sprintf(',%d', st.st_mode)
-      u32 command = 'SEND' == 0x53454E44
+      u32 command = 'SEND' == 0x444E4553
       u32 size = len(filename) + len(fileinfo) < 1024
       u8 data[size] = filename + fileinfo
 
     repeated data command (host -> device):
-      u32 command = 'DATA' == 0x44415441
+      u32 command = 'DATA' == 0x41544144
       u32 size < (64 * 1024)
       u8 data[size] = file contents
 
     finish command (host -> device):
-      u32 command = 'DONE' == 0x444F4E45
+      u32 command = 'DONE' == 0x454E4F44
       u32 timestamp = st.st_mtime
 
     response (device -> host):
-      u32 command = 'OKAY' == 0x4F4B4159 or 'FAIL' == 0x4641494C
+      u32 command = 'OKAY' == 0x59414BF4 or 'FAIL' == 0x4C494146
       u32 size = 0 if 'OKAY' else len(fail_message)
       u8 data[] = fail_message
 
   RECV:
     request:
-      u32 command = 'RECV' == 0x52454356
+      u32 command = 'RECV' == 0x56434552
       u32 size = len(filename)
       u8 data[size] = filename
 
     repeated data response (device -> host):
-      u32 command = 'DATA' == 0x44415441
+      u32 command = 'DATA' == 0x41544144
       u32 size < (64 * 1024)
       u8 data[size] = file contents
 
     finish response (device -> host):
-      u32 command = 'DONE' == 0x444F4E45
+      u32 command = 'DONE' == 0x454E4F44
       u32 size = 0