pupeno:
It seems I have found a hole in Haskell... :( Before I start to develop a library with functions such us those on http://haskell.org/hawiki/BinaryIo (hGetWord8, hGetWord16le, hGetWord16be, etc), is there some reliable library that can help me ? I basically need a set of functions to read binary data out of a Handle (a higher lever of hGetBuf and hPutBuf). What I am doing is implementing a DNS server, so, my typical need is: First two bytes are an integer. The next bit is a boolean. So are the following three bits. Then I have 4 bits which is also an integer. Etc. Any help is greatly appreciated. Thank you.
Use NewBinary, as suggested by that wiki page :) This is the standard binary lib, used in ghc, nhc and lots of other projects (even lambdabot!). With this, and Data.Bits, you should be able to do whatever you need, I think. -- Don