[#SSL_SESSION_get_max_early_data]
= SSL_SESSION_get_max_early_data
:mrdocs:

Return the maximum early‐data (0‐RTT) size allowed for a session.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
uint32_t
SSL_SESSION_get_max_early_data(xref:SSL_SESSION.adoc[SSL_SESSION] const* s);
----

== Return Value

Maximum early‐data bytes that may be sent when resuming `s,` or 0 if early data is not allowed.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| Session to query (typically from a prior handshake with the server).
|===


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