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KumonMa, posted Sun Jul 29, 2018 3:10 pm (37085)

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I want to modify the text in the package, how do I want to do it?

https://mega.nz/#F!OzxUEICT!Tk8_BA5sT4vXkCHURej-0A

aluigi, posted Tue Jul 31, 2018 4:39 am (37116)

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I don't know what's the compression algorithm used but I suspect there may be some encryption involved (didn't test the compression scanner, just supposing).

Anyway the format is simple so I leave the work-in-progress script here, that means YOU MUST NOT USE IT:

Code:

comtype ???
get DUMMY long
get ZERO long
get DUMMY long
get DUMMY long  # 1
get DUMMY long
get DUMMY long
get FILES long
get DUMMY long
for i = 0 < FILES
    get ENTRY_OFF long
    get ZSIZE long
    get SIZE long
    get ZIP long
    get DUMMY long
    get ZERO long
    get ENTRY_SIZE long
    get NAMESZ long
    math NAMESZ   1
    getdstring NAME NAMESZ
    savepos OFFSET
    if ZIP == 0
        log NAME OFFSET SIZE
    else
        get SIZE long
        math OFFSET   4
        math ZSIZE  - 4
        clog NAME OFFSET ZSIZE SIZE
    endif
    math ENTRY_OFF   ENTRY_SIZE
    goto ENTRY_OFF
next i

KumonMa, posted Tue Jul 31, 2018 10:07 am (37128)

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aluigi wrote:

I don't know what's the compression algorithm used but I suspect there may be some encryption involved (didn't test the compression scanner, just supposing).

Anyway the format is simple so I leave the work-in-progress script here, that means YOU MUST NOT USE IT:

Code:

comtype ???
get DUMMY long
get ZERO long
get DUMMY long
get DUMMY long  # 1
get DUMMY long
get DUMMY long
get FILES long
get DUMMY long
for i = 0 < FILES
    get ENTRY_OFF long
    get ZSIZE long
    get SIZE long
    get ZIP long
    get DUMMY long
    get ZERO long
    get ENTRY_SIZE long
    get NAMESZ long
    math NAMESZ   1
    getdstring NAME NAMESZ
    savepos OFFSET
    if ZIP == 0
        log NAME OFFSET SIZE
    else
        get SIZE long
        math OFFSET   4
        math ZSIZE  - 4
        clog NAME OFFSET ZSIZE SIZE
    endif
    math ENTRY_OFF   ENTRY_SIZE
    goto ENTRY_OFF
next i

Yes, it seems to use xxtea, but I tried to decrypt one of the files and got an error.

https://mega.nz/#F!evZmSQKY!tPZoS-nro_Pv0UGbYGpCHA

aluigi, posted Wed Aug 01, 2018 11:45 pm (37153)

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No, that script is for something completely different.