# SSLCopyRequestedPeerNameLength(_:_:) Obtains the hostname specified by the client in the ServerName extension (SNI). Server only. ``` func SSLCopyRequestedPeerNameLength(_ ctx: SSLContext, _ peerNameLen: UnsafeMutablePointer) -> OSStatus ``` ## Parameters `ctx` An SSL session context reference. `peerNameLen` The length of the peer name, as retrieved by calling the [`SSLCopyRequestedPeerName(_:_:_:)`](/documentation/Security/SSLCopyRequestedPeerName(_:_:_:)) function. ## Return Value A result code. See [Secure Transport Result Codes](/documentation/Security/secure-transport-result-codes). ## Discussion --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)