[#SSL_CTX_keylog_cb_func]
= SSL_CTX_keylog_cb_func
:mrdocs:

Callback that logs a single line of TLS key material for debugging.

== Synopsis

Declared in `<openssl/ssl.h>`

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

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ssl*
| SSL connection whose keys are being logged.
| *line*
| NUL‐terminated key‐log line (without trailing newline).
|===


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