[#SMIME_read_CMS_ex]
= SMIME_read_CMS_ex
:mrdocs:

Parse an S/MIME message into a CMS_ContentInfo, with optional flags and reuse.

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:CMS_ContentInfo.adoc[CMS_ContentInfo]*
SMIME_read_CMS_ex(
    xref:BIO.adoc[BIO]* bio,
    int flags,
    xref:BIO.adoc[BIO]** bcont,
    xref:CMS_ContentInfo.adoc[CMS_ContentInfo]** ci);
----

== Return Value

Parsed CMS_ContentInfo, or NULL on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bio*
| BIO from which the S/MIME message is read.
| *flags*
| Parse flags such as CMS_BINARY and SMIME_ASCIICRLF; 0 matches SMIME_read_CMS().
| *bcont*
| If non‐NULL, receives a memory BIO with cleartext signed content, or is set to NULL.
| *ci*
| Optional existing CMS_ContentInfo to populate (for example from CMS_ContentInfo_new_ex), or NULL to allocate.
|===


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