[#CMS_add_simple_smimecap]
= CMS_add_simple_smimecap
:mrdocs:

Append one S/MIME capability AlgorithmIdentifier to a stack.

== Synopsis

Declared in `<openssl/cms.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
CMS_add_simple_smimecap(
    xref:stack_st_X509_ALGOR.adoc[stack_st_X509_ALGOR]** algs,
    int algnid,
    int keysize);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *algs*
| Address of the stack to create or extend (may point to NULL).
| *algnid*
| Algorithm NID for the capability (cipher or similar).
| *keysize*
| Optional key‐size parameter in bits; if <= 0, no parameter is included.
|===


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