[#OSSL_CMP_exec_certreq]
= OSSL_CMP_exec_certreq
:mrdocs:

Execute a CMP certificate request transaction (IR/CR/KUR/P10CR).

== Synopsis

Declared in `<openssl/cmp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:X509.adoc[X509]*
OSSL_CMP_exec_certreq(
    xref:OSSL_CMP_CTX.adoc[OSSL_CMP_CTX]* ctx,
    int req_type,
    xref:OSSL_CRMF_MSG.adoc[OSSL_CRMF_MSG] const* crm);
----

== Return Value

Newly enrolled certificate on success, or NULL on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| CMP client context.
| *req_type*
| Body type (OSSL_CMP_IR, OSSL_CMP_CR, OSSL_CMP_KUR, or OSSL_CMP_P10CR).
| *crm*
| Optional CRMF message for IR/CR/KUR; NULL to build from context fields.
|===


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