[#SSL_CTX_ctrl]
= SSL_CTX_ctrl
:mrdocs:

Perform a low‐level control operation on an SSL context.

== Synopsis

Declared in `<openssl/ssl.h>`

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

== Return Value

Command‐specific long result.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| SSL context to manipulate.
| *cmd*
| Control command (SSL_CTRL__); prefer typed SSL_CTX_* helpers.
| *larg*
| Integer argument whose meaning depends on `cmd.`
| *parg*
| Pointer argument whose meaning depends on `cmd.`
|===


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