pipex_sockaddr_hash_key
list = PIPEX_PEER_ADDR_HASHTABLE(pipex_sockaddr_hash_key(sa));
list = PIPEX_PEER_ADDR_HASHTABLE(pipex_sockaddr_hash_key(sa));
pipex_sockaddr_hash_key(&session->peer.sa));
uint32_t pipex_sockaddr_hash_key(struct sockaddr *);