[#CMS_final]
= CMS_final
:mrdocs:

Finalise a partially built CMS_ContentInfo (for example digest computation and field fill‐in).

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
CMS_final(
    xref:CMS_ContentInfo.adoc[CMS_ContentInfo]* cms,
    xref:BIO.adoc[BIO]* data,
    xref:BIO.adoc[BIO]* dcont,
    unsigned int flags);
----

== Description

Used when CMS_PARTIAL is set and streaming I/O is not performing finalisation internally.

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cms*
| ContentInfo created with CMS_PARTIAL that still needs finalisation.
| *data*
| BIO supplying content to process (for example for digesting).
| *dcont*
| BIO that receives processed content for detached data, or usually NULL.
| *flags*
| CMS flags controlling finalisation behaviour.
|===


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