---
title: "CFNetServiceGetAddressing(_:)"
framework: cfnetwork
role: symbol
role_heading: Function
path: "cfnetwork/cfnetservicegetaddressing(_:)"
---

# CFNetServiceGetAddressing(_:)

Gets the IP addressing from a CFNetService.

## Declaration

```swift
func CFNetServiceGetAddressing(_ theService: CFNetService) -> Unmanaged<CFArray>?
```

## Parameters

- `theService`: The CFNetService whose IP addressing is to be obtained; cannot be NULL.

## Return Value

Return Value A CFArray containing a CFDataRef for each IP address returned, or NULL. Each CFDataRef consists of a sockaddr structure containing the IP address of the service. This function returns NULL if the service’s addressing is unknown because CFNetServiceResolve has not been called for theService.

## Discussion

Discussion This function gets the IP addressing from a CFNetService. Typically, the CFNetService was obtained by calling CFNetServiceBrowserSearchForServices(_:_:_:_:). Before calling this function, call CFNetServiceResolve to update the CFNetService with its IP addressing. Special Considerations This function gets the data in a thread-safe way, but the data itself is not safe if the service is altered from another thread.

## See Also

### Network Services

- [CFNetService](cfnetwork/cfnetservice.md)
- [CFNetServiceBrowser](cfnetwork/cfnetservicebrowser.md)
- [CFNetServiceBrowserFlags](cfnetwork/cfnetservicebrowserflags.md)
- [CFNetServiceMonitor](cfnetwork/cfnetservicemonitor.md)
- [CFNetServiceMonitorType](cfnetwork/cfnetservicemonitortype.md)
- [CFNetServiceClientContext](cfnetwork/cfnetserviceclientcontext.md)
- [CFNetServiceRegisterFlags](cfnetwork/cfnetserviceregisterflags.md)
- [CFNetServicesError](cfnetwork/cfnetserviceserror.md)
- [CFNetServiceBrowserInvalidate(_:)](cfnetwork/cfnetservicebrowserinvalidate(_:).md)
- [CFNetServiceBrowserScheduleWithRunLoop(_:_:_:)](cfnetwork/cfnetservicebrowserschedulewithrunloop(_:_:_:).md)
- [CFNetServiceBrowserCreate(_:_:_:)](cfnetwork/cfnetservicebrowsercreate(_:_:_:).md)
- [CFNetServiceBrowserGetTypeID()](cfnetwork/cfnetservicebrowsergettypeid().md)
- [CFNetServiceBrowserSearchForDomains(_:_:_:)](cfnetwork/cfnetservicebrowsersearchfordomains(_:_:_:).md)
- [CFNetServiceBrowserSearchForServices(_:_:_:_:)](cfnetwork/cfnetservicebrowsersearchforservices(_:_:_:_:).md)
- [CFNetServiceBrowserStopSearch(_:_:)](cfnetwork/cfnetservicebrowserstopsearch(_:_:).md)