C++ cross-platform zlib simplifer-wrapper

Question

I\'m looking for a wrapper that distills zlib to:

1. OpenZipFile()
2. GetItemInfo(n)
3. UnzipItem(n) // Bonus points for unzipping recursively if ite

Answer 1

This is an old thread, but I thought I'd throw in Boost's ZLib wrapper:

http://www.boost.org/doc/libs/1_47_0/libs/iostreams/doc/classes/zlib.html

Answer 2

In the zlib source archive, there is a contribution named "minizip".

"minizip" is a set of files you can use to play with .zip files. Basic services you need are already there :

• unzOpen
• unzLocateFile
• unzOpenCurrentFile
• unzGetCurrentFileInfo
• unzCloseCurrentFile
• unzClose

Of course, this is not object oriented (and I'm sure that was not the goal of the creator of minizip), but writing a simple object oriented wrapper should be easy.

Answer 3

If you will use minizip -- pay attention, thet version shipped with zlib 1.2.3 has 2GB resulting zip file limitation. IT will produce zip with size >2GB - but you won't be able to open them...

Answer 4

In boost::iostreams there is the possibility to use zlib, gzip and bzip2 formats.

You find it from http://www.boost.org/

Answer 5

You can check also this C++ Zlib wrapper with auto-detection of input format: https://github.com/mateidavid/zstr

Answer 6

GZStream is worth a look. This is a nice cross-platform wrapper round ZLib which extend the STL iostream classes.

http://www.cs.unc.edu/Research/compgeom/gzstream/

What is good about this wrapper over some of the others is that if you're working with very large archives you don't need to load the whole dataset into memory.