msg_addrlen() returns a pointer to ai_addrlen field of struct addrinfo
inside the msg_t object. ai_addrlen has type size_t. However, system calls
taking a return valur pointer to address length, use type socklen_t.
Typically size_t is unsigned long, socklen_t is int, so casting
msg_addrlen() return value to (socklen_t *) will break on (high-endian)
64-bit platforms. svsp.

darcs-hash:20060512123739-65a35-f40e2a77be00bd3293d8cc6877252b046afabcce.gz