[#OSSL_trace_get_category_name]
= OSSL_trace_get_category_name
:mrdocs:

Map an OSSL_TRACE_CATEGORY_* number to its canonical name string.

== Synopsis

Declared in `<openssl/trace.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
char const*
OSSL_trace_get_category_name(int num);
----

== Return Value

Category name (for example "TLS"), or NULL if `num` is unrecognized.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *num*
| Category number from OSSL_trace_get_category_num() or a OSSL_TRACE_CATEGORY_* constant.
|===


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