[#CMS_unsigned_get_attr_by_NID]
= CMS_unsigned_get_attr_by_NID
:mrdocs:

Find an unsigned attribute by NID in a CMS SignerInfo.

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
CMS_unsigned_get_attr_by_NID(
    xref:CMS_SignerInfo.adoc[CMS_SignerInfo] const* si,
    int nid,
    int lastpos);
----

== Return Value

Attribute index, or ‐1 if not found.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *si*
| SignerInfo whose unsignedAttrs are searched.
| *nid*
| Attribute type NID to match.
| *lastpos*
| Index after which to continue searching (‐1 to start from the beginning).
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#