[#OSSL_SELF_TEST_get_callback]
= OSSL_SELF_TEST_get_callback
:mrdocs:

Retrieve the self‐test callback previously set on a library context.

== Synopsis

Declared in `<openssl/self_test.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
OSSL_SELF_TEST_get_callback(
    xref:OSSL_LIB_CTX.adoc[OSSL_LIB_CTX]* libctx,
    xref:OSSL_CALLBACK.adoc[OSSL_CALLBACK]** cb,
    void** cbarg);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *libctx*
| Library context, or NULL for the default.
| *cb*
| Address updated to the registered callback, or NULL if unset.
| *cbarg*
| Address updated to the opaque argument passed to the callback, or NULL if unset.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#