---
title: "SCNetworkServiceCopyProtocol(_:_:)"
framework: systemconfiguration
role: symbol
role_heading: Function
path: "systemconfiguration/scnetworkservicecopyprotocol(_:_:)"
---

# SCNetworkServiceCopyProtocol(_:_:)

Returns the network protocol of the specified type for the specified service.

## Declaration

```swift
func SCNetworkServiceCopyProtocol(_ service: SCNetworkService, _ protocolType: CFString) -> SCNetworkProtocol?
```

## Parameters

- `service`: The network service.
- `protocolType`: The type of network protocol.

## Return Value

Return Value The network protocol associated with the service, or NULL if this protocol has not been added or if an error occurred. You must release the returned value.

## See Also

### Configuring Network Services

- [SCNetworkServiceAddProtocolType(_:_:)](systemconfiguration/scnetworkserviceaddprotocoltype(_:_:).md)
- [SCNetworkServiceCopy(_:_:)](systemconfiguration/scnetworkservicecopy(_:_:).md)
- [SCNetworkServiceCopyAll(_:)](systemconfiguration/scnetworkservicecopyall(_:).md)
- [SCNetworkServiceCopyProtocols(_:)](systemconfiguration/scnetworkservicecopyprotocols(_:).md)
- [SCNetworkServiceCreate(_:_:)](systemconfiguration/scnetworkservicecreate(_:_:).md)
- [SCNetworkServiceEstablishDefaultConfiguration(_:)](systemconfiguration/scnetworkserviceestablishdefaultconfiguration(_:).md)
- [SCNetworkServiceGetEnabled(_:)](systemconfiguration/scnetworkservicegetenabled(_:).md)
- [SCNetworkServiceGetInterface(_:)](systemconfiguration/scnetworkservicegetinterface(_:).md)
- [SCNetworkServiceGetName(_:)](systemconfiguration/scnetworkservicegetname(_:).md)
- [SCNetworkServiceGetServiceID(_:)](systemconfiguration/scnetworkservicegetserviceid(_:).md)
- [SCNetworkServiceGetTypeID()](systemconfiguration/scnetworkservicegettypeid().md)
- [SCNetworkServiceRemove(_:)](systemconfiguration/scnetworkserviceremove(_:).md)
- [SCNetworkServiceRemoveProtocolType(_:_:)](systemconfiguration/scnetworkserviceremoveprotocoltype(_:_:).md)
- [SCNetworkServiceSetEnabled(_:_:)](systemconfiguration/scnetworkservicesetenabled(_:_:).md)
- [SCNetworkServiceSetName(_:_:)](systemconfiguration/scnetworkservicesetname(_:_:).md)