[Haskell-cafe] Opening a file that another process is writing

[Maurício]

   Hi,

   I want to open for reading a log file that another process is locking 
for write. I know it's possible, since 'cat' and 'vim' can read that 
file (but not edit it, of course). How can I do that in Haskell? 
'openFile' says "permission denied".

   Thanks,
   Maurício