[#ASN1_SCTX_set_app_data]
= ASN1_SCTX_set_app_data
:mrdocs:

Store an application pointer on an ASN.1 scan context for use by the scan callback.

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
ASN1_SCTX_set_app_data(
    xref:ASN1_SCTX.adoc[ASN1_SCTX]* p,
    void* data);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *p*
| Scan context to update.
| *data*
| Opaque pointer retrieved later with ASN1_SCTX_get_app_data().
|===


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