These APIs allow an application to obtain the address of a service or a specified host in a transport-independent manner.
| API | Description |
|---|---|
| netdir_free() | Frees structures that are allocated by name-to-address translation APIs |
| netdir_getbyaddr() | Maps addresses into host names and service names |
| netdir_getbyname() | Maps the host name and service name that are specified in the service parameter to a set of addresses that are consistent with the transport identified in the netconfig structure |
| netdir_options() | Provides interfaces to transport-specific capabilities such as the broadcast address and reserved port facilities of TCP and UDP |
| netdir_sperror() | Issues an informational message that states why one of the name-to-address translation APIs failed |
| taddr2uaddr() | Translates a transport-specific (local) address to a transport-independent (universal) address |
| uaddr2taddr() | Translates a transport-independent (universal) address to a transport-specific (local) address (netbuf structure) |