Divide File into fixed length chunking

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hii friend, i need your help
I need a c program implementation for fixed length chunking (file divided into fixed size block for ex. 8kb and use the hash value, MD5 or SHA1 to calculate hash for each block)... once a same hash is found, consider the chunk as redundancy: otherwise store the chunk and its hash...

Posted 12-Feb-15 20:13pm

Member 11449136

Updated 12-Feb-15 21:12pm

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Richard MacCutchan · Answer 1 · 2015-02-12T23:31:00

Set a variable to the total size of the file
REPEAT:
if file size is greater than chunk size
    Read the next chunk
else
    Read the remaining data
Compute the hash for this chunk
Process the chunk and hash ... not sure what you mean here
Subtract last block size from total file size
If total file size greater than zero go back to REPEAT:

CPallini · Answer 2 · 2015-02-12T21:03:00

Solution 1

Well, your requirements are clear, after all.
What is you doubt about?
The 'tricky part' is computing the hash value but you may find freely available code for that (e.g. MD5[^]).

Posted 12-Feb-15 21:03pm

CPallini

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CPallini 13-Feb-15 3:08am

You are supposed to provide the solution. We can provide a little help (this is called 'quick answers' after all.

Member 11449136 13-Feb-15 3:07am

if you have source code so please send me... i need example of source coding..
please help me...