[#CMS_dataInit]
= CMS_dataInit
:mrdocs:

Build a BIO chain that reads or writes the CMS content for `cms.`

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BIO.adoc[BIO]*
CMS_dataInit(
    xref:CMS_ContentInfo.adoc[CMS_ContentInfo]* cms,
    xref:BIO.adoc[BIO]* icont);
----

== Return Value

BIO chain suitable for reading or writing content, or NULL on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cms*
| ContentInfo whose processing BIO chain is created.
| *icont*
| Optional content BIO to push under the CMS filters; NULL allocates an appropriate content BIO.
|===


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