Difference between revisions of "ZiPatch File Structure"
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| − | All ZiPatch files for FINAL FANTASY XIV share the same overall structure. This format was later expanded in 2012 for DRAGON QUEST X and FINAL FANTASY XIV: A Realm Reborn, which are more similar in their DAT structure. Many of the | + | All ZiPatch files for FINAL FANTASY XIV share the same overall structure. This format was later expanded in 2012 for DRAGON QUEST X and FINAL FANTASY XIV: A Realm Reborn, which are more similar in their DAT structure. Many of the block types found in this version were deprecated, but still remain in the executable for A Realm Reborn. |
ZiPatch File Header | ZiPatch File Header | ||
<code>91 5A 49 50 41 54 43 48 0D 0A 1A 0A</code> | <code>91 5A 49 50 41 54 43 48 0D 0A 1A 0A</code> | ||
| − | + | The ZiPatch File Header is followed immediately by n blocks, which carry specific instructions. Each block has the following structure: | |
| − | |||
| − | |||
| − | crc is standard CRC32 checksum (RFC 1952) of | + | <pre> |
| + | [StructLayout(LayoutKind.Sequential, Pack=4)] | ||
| + | struct Block | ||
| + | { | ||
| + | int dataSize; // Little Endian | ||
| + | byte[] data; // data.Length is dataSize + 4 (inclusive of block type identifier) | ||
| + | [MarshalAs(UnmanagedType.ByValArray, SizeConst=4)] | ||
| + | byte[] crc; // crc is a standard CRC32 checksum (RFC 1952) of data | ||
| + | } | ||
| + | </pre> | ||
byte type[data[0..3]] | byte type[data[0..3]] | ||
Revision as of 18:38, 5 June 2019
All ZiPatch files for FINAL FANTASY XIV share the same overall structure. This format was later expanded in 2012 for DRAGON QUEST X and FINAL FANTASY XIV: A Realm Reborn, which are more similar in their DAT structure. Many of the block types found in this version were deprecated, but still remain in the executable for A Realm Reborn.
ZiPatch File Header
91 5A 49 50 41 54 43 48 0D 0A 1A 0A
The ZiPatch File Header is followed immediately by n blocks, which carry specific instructions. Each block has the following structure:
[StructLayout(LayoutKind.Sequential, Pack=4)]
struct Block
{
int dataSize; // Little Endian
byte[] data; // data.Length is dataSize + 4 (inclusive of block type identifier)
[MarshalAs(UnmanagedType.ByValArray, SizeConst=4)]
byte[] crc; // crc is a standard CRC32 checksum (RFC 1952) of data
}
byte type[data[0..3]] "FHDR" (File Header) "APLY" "APFS" "ETRY" (Entry File) "ADIR" (Add Directory) "DELD" (Delete Directory)
>>FHDR byte version[4] byte result[4] uint numEtry (Little Endian) uint numAply (Little Endian) uint numDeld (Little Endian)
>>ADIR uint pathSize (Little Endian) byte path[pathSize]
>>DELD uint pathSize (Little Endian) byte path[pathSize]
