[#BIO_int_ctrl]
= BIO_int_ctrl
:mrdocs:

Invoke a BIO ctrl that takes an integer argument in the low word.

== Synopsis

Declared in `<openssl/bio.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
long
BIO_int_ctrl(
    xref:BIO.adoc[BIO]* bp,
    int cmd,
    long larg,
    int iarg);
----

== Return Value

Command‐specific long result, or <=0 on error depending on `cmd.`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bp*
| BIO to control.
| *cmd*
| Control command.
| *larg*
| Long argument for the control operation.
| *iarg*
| Integer argument packed into the ctrl call.
|===


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