byaddr(3) - 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)