DataBlock information Help

[MirJafar Ali]

Hello,

I am using e2fsprogs and found it very nice. I want to know datablocks for a
given a given file.
I was going through the document and did lots of google search, but I am not
sure what is the
best way to get this information. Which "e2fsprogs" function can give all
the datablock IDs. There
is one function i.e. ext2fs_block_iterate, but I am not sure how it works.
It wasn't clear from the
document.

Can someone please help without getting angry on this simple question ?

Mir
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