[zfec-dev] zunfec behavior for handling error

[Jake Lee]

I test zfec/zunfec by below commands:

$ dd if=/deve/random of=bigfile bs=1M count=10
$ zfec -m 5 -k 3 bigfile
$ zunfec -o recovery bigfile.0_5.fec bigfile.3_5.fec bigfile.2_5.fec

the commands worked very well, and the file are recovered correctly!

But, then I corrupted one file
$ bvi bigfile.0_5.fec

then I change several bytes in the file, and save it back. Now I use the
same unfec command:

 $ zunfec -o bigerror bigfile.0_5.fec bigfile.3_5.fec bigfile.2_5.fec
$ echo $?
0

it finished without the error codes, but the result was wrong!

So, does zunfec to verify the integrity of the files before recoverying? I
am strong interesting in the erasure code and Tahoe system, and I like to
join your project and work for something.
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