[#EVP_SIGNATURE_gettable_ctx_params]
= EVP_SIGNATURE_gettable_ctx_params
:mrdocs:

Return the OSSL_PARAM descriptors gettable on a signature context for `sig.`

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:OSSL_PARAM.adoc[OSSL_PARAM] const*
EVP_SIGNATURE_gettable_ctx_params(xref:EVP_SIGNATURE.adoc[EVP_SIGNATURE] const* sig);
----

== Return Value

Array of OSSL_PARAM descriptors terminated by OSSL_PARAM_END, or NULL.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *sig*
| Signature algorithm whose gettable context parameters are listed.
|===


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