# SSLGetPeerID(_:_:_:) Retrieves the current peer ID data. ``` func SSLGetPeerID(_ context: SSLContext, _ peerID: UnsafeMutablePointer, _ peerIDLen: UnsafeMutablePointer) -> OSStatus ``` ## Parameters `context` An SSL session context reference. `peerID` On return, points to a buffer containing the peer ID data. `peerIDLen` On return, the length of the peer ID data buffer. ## Return Value A result code. See [Secure Transport Result Codes](/documentation/Security/secure-transport-result-codes). ## Discussion If the peer ID data for this context was not set by calling the [`SSLSetPeerID(_:_:_:)`](/documentation/Security/SSLSetPeerID(_:_:_:)) function, this function returns a `NULL` pointer in the `peerID` parameter, and `0` in the `peerIDLen` parameter. --- 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)