Reading compressed files

This is a discussion on Reading compressed files within the C Programming forums, part of the General Programming Boards category; Hi, Does anyone know of a library on Solaris that has functions to allow you to read from a compressed ...

  1. #1
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    Reading compressed files

    Hi,
    Does anyone know of a library on Solaris that has functions to allow you to read from a compressed file? I have a large number of compressed files that I need to process. I could write a wrapper script that uncompresses the file, passes the uncompressed file as an argument to my program and recompresses it again. But it would be nicer if I could do it all within the program, just passing the compressed file as the argument. Does anyone know of such a library?
    Thanks
    Pete

  2. #2
    Gawking at stupidity
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    There's a zillion and one compressed file formats. Are you referring to files that were compressed with the 'compress' program or something else? Have you tried zlib?
    If you understand what you're doing, you're not learning anything.

  3. #3
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    Read from stdin:
    Code:
    zcat file.Z | myprogram
    ..or .
    uncompress <filename> | myprogram

  4. #4
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    Yes, compressed with the compress utility to produce a .Z file. Have not tried zlib, but I have had a look and there is a zlib.h in /usr/include. I will do a google search and see if I can turn up a function list and maybe some examples of its use.
    Thanks
    Pete

  5. #5
    Gawking at stupidity
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    http://www.dogma.net/markn/articles/...l/zlibtool.htm
    That site should have all the information you need.
    If you understand what you're doing, you're not learning anything.

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