[#OSSL_CMP_HDR_get0_recipNonce]
= OSSL&lowbar;CMP&lowbar;HDR&lowbar;get0&lowbar;recipNonce
:mrdocs:

Return the recipNonce from a CMP PKIHeader&period;

== Synopsis

Declared in `&lt;openssl&sol;cmp&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:ASN1_OCTET_STRING.adoc[ASN1&lowbar;OCTET&lowbar;STRING]*
OSSL&lowbar;CMP&lowbar;HDR&lowbar;get0&lowbar;recipNonce(xref:OSSL_CMP_PKIHEADER.adoc[OSSL&lowbar;CMP&lowbar;PKIHEADER] const* hdr);
----

== Return Value

Internal recipNonce octet string, or NULL if absent&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *hdr*
| PKIHeader to query&period;
|===


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