[#SSL_CTX_set_client_cert_engine]
= SSL_CTX_set_client_cert_engine
:mrdocs:

Set an ENGINE used to obtain a client certificate when a server requests one.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
SSL_CTX_set_client_cert_engine(
    xref:SSL_CTX.adoc[SSL_CTX]* ctx,
    xref:ENGINE.adoc[ENGINE]* e);
----

== Return Value

1 on success, or 0 if `e` cannot be initialized or has no client‐cert method.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| SSL context that will use `e` for client‐certificate selection.
| *e*
| ENGINE that implements a client‐certificate load function (initialized by this call).
|===


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