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# Socket Name Server Utilities

## Overview

Name server functionality is currently inoperable in macOS.

## Topics

### Core Foundation Socket Name Server Utilities Miscellaneous Functions

[`CFSocketCopyRegisteredSocketSignature`](/documentation/CoreFoundation/CFSocketCopyRegisteredSocketSignature(_:_:_:_:_:))

Returns a socket signature registered with a CFSocket name server.

[`CFSocketCopyRegisteredValue`](/documentation/CoreFoundation/CFSocketCopyRegisteredValue(_:_:_:_:_:))

Returns a value registered with a CFSocket name server.

[`CFSocketGetDefaultNameRegistryPortNumber`](/documentation/CoreFoundation/CFSocketGetDefaultNameRegistryPortNumber())

Returns the default port number with which to connect to a CFSocket name server.

[`CFSocketRegisterSocketSignature`](/documentation/CoreFoundation/CFSocketRegisterSocketSignature(_:_:_:_:))

Registers a socket signature with a CFSocket name server.

[`CFSocketRegisterValue`](/documentation/CoreFoundation/CFSocketRegisterValue(_:_:_:_:))

Registers a property-list value with a CFSocket name server.

[`CFSocketSetDefaultNameRegistryPortNumber`](/documentation/CoreFoundation/CFSocketSetDefaultNameRegistryPortNumber(_:))

Sets the default port number with which to connect to a CFSocket name server.

[`CFSocketUnregister`](/documentation/CoreFoundation/CFSocketUnregister(_:_:_:))

Unregisters a value or socket signature with a CFSocket name server.

### Constants

[CFSocket Name Server Keys](/documentation/CoreFoundation/cfsocket-name-server-keys)

Not used.


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