[#PKCS12_get_attr_gen]
= PKCS12_get_attr_gen
:mrdocs:

Retrieve an attribute by NID from a stack of X509_ATTRIBUTEs.

== Synopsis

Declared in `<openssl/pkcs12.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:ASN1_TYPE.adoc[ASN1_TYPE]*
PKCS12_get_attr_gen(
    xref:stack_st_X509_ATTRIBUTE.adoc[stack_st_X509_ATTRIBUTE] const* attrs,
    int attr_nid);
----

== Return Value

Attribute value (owned by the containing structure), or NULL if absent or on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *attrs*
| Stack of attributes to search.
| *attr_nid*
| NID of the attribute to retrieve.
|===


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