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happydance, posted Sat Feb 18, 2017 5:27 pm (20874)

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is it possible to create a bms script Extract/deflate zlib without knowing extracted size like how offzip works? I cant use offzip since some files are not extracted properly (some are cut) and the TOC is encrypted and I got no clue how to decrypt it.

I tried this, jus by giving it a big extract files, it works with some but fails on most

Code:

log MEMORY_FILE 0 0
clog MEMORY_FILE OFFSET ZSIZE 0x1000000
GetDString EXT 0x3 MEMORY_FILE
string NAMEZ p= "%s_d.%s" NAME i EXT
get EXTRACT_SIZE ASIZE MEMORY_FILE
log NAMEZ 0 EXTRACT_SIZE MEMORY_FILE

not sure if there is a proper computation to be done, can anyone help?

happydance, posted Sun Feb 19, 2017 10:51 am (20879)

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Never mind... it seems the zsize im giving it is wrong and I really need to decrypt the TOC to get the proper zsize, size and offsets

any idea where should I start to decrypt the TOC of this file format?

aluigi, posted Mon Feb 20, 2017 11:48 am (20893)

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Regarding the decompression with unknown compressed/decompressed size, use: comtype unzip_dynamic