Section: gnutls (3)
gnutls_dtls_set_data_mtu - API function
int gnutls_dtls_set_data_mtu(gnutls_session_t session, unsigned int mtu);
- gnutls_session_t session
is a gnutls_session_t type.
- unsigned int mtu
The maximum unencrypted transfer unit of the session
This function will set the maximum size of the *unencrypted* records
which will be sent over a DTLS session. It is equivalent to calculating
the DTLS packet overhead with the current encryption parameters, and
with that value. In particular, this means
that you may need to call this function again after any negotiation or
renegotiation, in order to ensure that the MTU is still sufficient to
account for the new protocol overhead.
In most cases you only need to call gnutls_dtls_set_mtu() with
the maximum MTU of your transport layer.
(0) on success, or a negative error code.
Report bugs to <firstname.lastname@example.org
Home page: https://www.gnutls.org
Copyright © 2001-2019 Free Software Foundation, Inc., and others.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
notice and this notice are preserved.
The full documentation for
is maintained as a Texinfo manual.
If the /usr/share/doc/gnutls/
directory does not contain the HTML form visit