[#SSL_get_ex_data]
= SSL_get_ex_data
:mrdocs:

Retrieve application‐specific data previously stored on an SSL object.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void*
SSL_get_ex_data(
    xref:SSL.adoc[SSL] const* ssl,
    int idx);
----

== Return Value

Pointer previously passed to SSL_set_ex_data, or NULL.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ssl*
| SSL connection to query.
| *idx*
| Index returned by SSL_get_ex_new_index / CRYPTO_get_ex_new_index.
|===


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