char * bStr2NetStr (const_bstring b) * * Convert a bstring to a netstring. See * http://cr.yp.to/proto/netstrings.txt for a description of netstrings. * Note: 1) The value returned should be freed with a call to bcstrfree() at * the point when it will no longer be referenced to avoid a memory * leak. * 2) If the returned value is non-NULL, then it also '\0' te