byaddr(category16-debian.html) - phpMan
gethostbyaddr (3) - get network host entry gethostbyaddr (3p) - network host database functions gethostbyaddr_r (3) - get network host entry getipnodebyaddr (3) - get network hostnames and addresses getnetbyaddr (3) - get network entry getnetbyaddr (3p) - network database functions getnetbyaddr_r (3) - get network entry (reentrant)