[#DTLS_get_data_mtu]
= DTLS_get_data_mtu
:mrdocs:

Return the maximum application‐data payload size for a DTLS connection.

== Synopsis

Declared in `<openssl/ssl.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
size_t
DTLS_get_data_mtu(xref:SSL.adoc[SSL] const* s);
----

== Return Value

Maximum bytes of application data per datagram, or 0 if unknown.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *s*
| DTLS SSL object whose path MTU / record overhead are considered.
|===


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