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42 lines
1.3 KiB
Text
42 lines
1.3 KiB
Text
pakextract
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----------
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pakextract is a small tool to extract the contents of
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a Quake II pak file into the current directory. Usage:
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./pakextract /path/to/pakfile.pak
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Only Quake II paks are supported. Other pak formats may
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work but it's untested and unsupported.
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-------------------------------------------------------
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The Quake II Pak File Format
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----------------------------
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A Quake II pak file consists of 3 parts:
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- Header
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- Directory
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- Data
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The header is written right after the start
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of the file and consists of 3 parts in the
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following order:
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- A 4 byte identification string "PACK" (in ASCII)
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- A 4 byte integer value defining the offset to the
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directory in bytes
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- A 4 byte iteger giving the length of the directory
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in bytes. Since every directory entry is 64 bytes
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long this value modulo 64 must be 0:
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(dir_length % 64) == 0;
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The directory can be anywere in the file but most times
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it's written to the end. In consists of datablocks,
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written one after the other without any space between
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them. A directory entry is 64 bytes long has entries
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in the following order:
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- A 56 byte file name (in ASCII)
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- A 4 byte value defining the position if the file
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as an offset in bytes to the start of the pak file.
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- A 4 byte integer giving the length of the file
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in bytes.
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