Newsgroup: comp.lang.perl.misc

botfood wrote:
> after extensive testing I am stuck with the realization that a database
> file salvaged from a corrupted webserver has been messed up just enough
> so that tie() fails to open it. I don't know whether it was a virus, a
> mechanical crash, or caused by a software bug. using -f and -r checks
> pass the file as existing and readable, but the tie() using DB_File
> fails and the $! reports 'No such file or directory'.

[...]

> What I am wondering to the group here is whether it is worth my time to
> attempt to extract the pattern of  readable text from the file created
> as a tie()ed DB_File, save as plain text, and then write another import
> tool to write the text back into a tie()ed file.

Assuming that your data is tied to a Berkeley DB file, try using the 
db_dump command that comes with Berkeley DB to dump the data in a 
readable format.  The command's -r and -R options allow you to salvage 
data from a corrupt database.  If the command's documentation is not 
available on your system, you can find it online at 
<http://www.sleepycat.com/docs/utility/db_dump.html>.

-- 
Diomidis Spinellis
Code Quality: The Open Source Perspective (Addison-Wesley 2006)
http://www.spinellis.gr/codequality?clpm

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