含ZLIB压缩的包文件破解利器OFFZIP

shane007 · 发表于 2009-12-20 10:39

很早就准备把这个工具发出来，一直没空，现在抽空把它发出来。
很多包文件为了游戏更快地读取，会使用ZLIB把游戏的数据压缩为一块一块的压缩数据块。比如CSI纽约等等。著名的街霸4的解包工具也是在这个工具的基础上开发出来的。
在这些压缩数据块的头部都有一些特定的标记，这个工具根据这些特定的标记，能把压缩数据块自动识别和解压缩出来。
使用方法如下

Offset file unzipper 0.3.3
by Luigi Auriemma
e-mail: [email protected]
web: aluigi.org

Usage: offzip.exe [options] <input> <output/dir> <offset>

Options:
-s    search for possible zip/gzip data in the input file, the scan starts
      from the specified offset and finishs when something is found
      the output field is ignored so you can use any name you want
-S    as above but continues the scan (just like -a but without extraction)
-a    unzip all the possible zip data found in the file. the output
      directory where are unzipped the files is identified by <output>
      all the output filenames contain the offset where they have been found
-A    as above but without unzipping data, the output files will contain the
      same original zipped data, just like a simple data dumper
-1    related to -a/-A, generates one unique output file instead of many
-m SIZE  lets you to decide the length of the zip block to check if it is a
      valid zip data. default is 32. use a higher value to reduce the number
      of false positive or a smaller one (eg 16) to see small zip data too
-z NUM this option is needed to specify a windowBits value. If you don't find
      zip data in a file (like a classical zip file) try to set it to -15
      valid values go from -8 to -15 and from 8 to 15. Default is 15
-q    quiet, all the verbose error messages will be suppressed
-r    don't remove the invalid uncompressed files generated with -a and -A

Note: offset is a decimal number or a hex number if you add a 0x before it
   examples: 1234 or 0x4d2

原文
http://aluigi.altervista.org/mytoolz.htm