[#SSL_get0_peername]
= SSL_get0_peername
:mrdocs:

Return the peer certificate DNS name or subject CN that matched a configured reference identifier.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char const*
SSL_get0_peername(xref:SSL.adoc[SSL]* s);
----

== Return Value

Matched peer name (library‐owned; invalid after clear/free/renegotiate), or NULL if none / not applicable.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| SSL connection after hostname verification.
|===


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