[#SSL_CTX_ctrl]
= SSL&lowbar;CTX&lowbar;ctrl
:mrdocs:

Perform a low&hyphen;level control operation on an SSL context&period;

== Synopsis

Declared in `&lt;openssl&sol;ssl&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
long
SSL&lowbar;CTX&lowbar;ctrl(
    xref:SSL_CTX.adoc[SSL&lowbar;CTX]* ctx,
    int cmd,
    long larg,
    void* parg);
----

== Return Value

Command&hyphen;specific long result&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| SSL context to manipulate&period;
| *cmd*
| Control command (SSL&lowbar;CTRL&lowbar;_)&semi; prefer typed SSL&lowbar;CTX_&ast; helpers&period;
| *larg*
| Integer argument whose meaning depends on `cmd&period;`
| *parg*
| Pointer argument whose meaning depends on `cmd&period;`
|===


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