md5sum or libraries

md5sum or libraries

[Benjamin Jeeves]

Hi all

I'm new to C programming and was hoping to write a program that would scan a 
number of folders and if any files in them it would do a md5sum on them. I 
can not seen to find any thing on a libraries or a function that would do the 
md5sum of the file.

e.g. in php there is a function call md5_file().

This there something like that in C?

I have written the code to scan the folders but can not find anything on 
md5sum or md5_file for C?

Thank you

Benjamin Jeeves

Re: md5sum or libraries

[Jan-Benedict Glaw]

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On Sun, 2005-01-02 18:22:55 +0000, Benjamin Jeeves <benjamin@benjamin76.plus.com>
wrote in message <200501021822.55287.benjamin@benjamin76.plus.com>:
> I have written the code to scan the folders but can not find anything on 
> md5sum or md5_file for C?

libgcrypt does implement a number of cryptographic hash functions, md5
is fur sure one of those. However, you've got to do the file-reading
yourself (though, that shouldn't be much of a problem :)

But keep in mind that md5 is nowadays considered broken. So if you just
want to check some random files, it may serve you very well, but if you
need to to some contract-checking or things like that, you should
consider other hash functions.

MfG, JBG

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