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gnutls_record_send_early_data(3)    gnutls    gnutls_record_send_early_data(3)

NAME
       gnutls_record_send_early_data - API function

SYNOPSIS
       #include <gnutls/gnutls.h>

       ssize_t gnutls_record_send_early_data(gnutls_session_t session, const
       void * data, size_t data_size);

ARGUMENTS
       gnutls_session_t session
                   is a gnutls_session_t type.

       const void * data
                   contains the data to send

       size_t data_size
                   is the length of the data

DESCRIPTION
       This function can be used by a client to send data early in the
       handshake processes when resuming a session.  This is used to implement
       a zero-roundtrip (0-RTT) mode.  It has the same semantics as
       gnutls_record_send().

       There may be a limit to the amount of data sent as early data.  Use
       gnutls_record_get_max_early_data_size() to check the limit.  If the
       limit exceeds, this function returns GNUTLS_E_RECORD_LIMIT_REACHED.

RETURNS
       The number of bytes sent, or a negative error code.  The number of
       bytes sent might be less than  data_size .  The maximum number of bytes
       this function can send in a single call depends on the negotiated
       maximum record size.

SINCE
       3.6.5

REPORTING BUGS
       Report bugs to <bugs@gnutls.org>.
       Home page: https://www.gnutls.org

COPYRIGHT
       Copyright (C) 2001- 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.

SEE ALSO
       The full documentation for gnutls is maintained as a Texinfo manual.
       If the /usr/local/share/doc/gnutls/ directory does not contain the HTML
       form visit

       https://www.gnutls.org/manual/

gnutls                               3.7.9    gnutls_record_send_early_data(3)