Thanks. It's a reasonable point of view, and true, but if the zlib header already contains the information which I want, one would hope that the authors of zlib would create some function to access the information and relieve the users of the need to do hand parsing. Most people will know how big to dimension a buffer to hold the output. Being pretty new to zlib, I was just trying to determine whether such functions exist or whether it is indeed up to me to do a hand parsing of the header.
