The problem is that you're closing the file twice. When you call any
function of the getContents family, you assign to that function the
responsibility to close the file, no sooner than it is no longer needed.
Don't call hClose yourself, Bad Things will happen.
If you close the file, the stream will suddenly end. I believe silent
data corruption is worse than a crash :) (currently, hGetContents also
truncates on I/O error, but that's much less common and syslog will tell
you about it anyway)
Why can't hClose be more... um... lazy?
Stefan
Tim Newsham
http://www.thenewsh.com/~newsham/
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