[#ASN1_generate_v3]
= ASN1_generate_v3
:mrdocs:

Build an ASN1_TYPE from an ASN.1 generation string, resolving extras via an X509V3_CTX.

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:ASN1_TYPE.adoc[ASN1_TYPE]*
ASN1_generate_v3(
    char const* str,
    xref:X509V3_CTX.adoc[X509V3_CTX]* cnf);
----

== Return Value

Encoded ASN1_TYPE, or NULL on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *str*
| Generation string describing the ASN.1 value to encode.
| *cnf*
| Optional X.509v3 context supplying configuration for additional string references, or NULL.
|===


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