[#SSL_SESSION_get_compress_id]
= SSL_SESSION_get_compress_id
:mrdocs:

Return the compression method identifier negotiated for a session.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
unsigned int
SSL_SESSION_get_compress_id(xref:SSL_SESSION.adoc[SSL_SESSION] const* s);
----

== Return Value

Compression method id (1 for zlib), or 0 if compression was not negotiated.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| Session to query.
|===


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