@deftypefun {ssize_t} {gnutls_record_send2} (gnutls_session_t @var{session}, const void * @var{data}, size_t @var{data_size}, size_t @var{pad}, unsigned @var{flags})
@var{session}: is a @code{gnutls_session_t} type.
@var{data}: contains the data to send
@var{data_size}: is the length of the data
@var{pad}: padding to be added to the record
@var{flags}: must be zero
This function is identical to @code{gnutls_record_send()} except that it
takes an extra argument to specify padding to be added the record.
To determine the maximum size of padding, use
@code{gnutls_record_get_max_size()} and @code{gnutls_record_overhead_size()} .
Note that in order for GnuTLS to provide constant time processing
of padding and data in TLS1.3, the flag @code{GNUTLS_SAFE_PADDING_CHECK}
must be used in @code{gnutls_init()} .
@strong{Returns:} The number of bytes sent, or a negative error code. The
number of bytes sent might be less than @code{data_size} . The maximum
number of bytes this function can send in a single call depends
on the negotiated maximum record size.
@strong{Since:} 3.6.3
@end deftypefun