gnutls_record_send2(3) — Linux manual page


gnutls_record_send2(3)           gnutls           gnutls_record_send2(3)

NAME         top

       gnutls_record_send2 - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       ssize_t gnutls_record_send2(gnutls_session_t session, const void
       * data, size_t data_size, size_t pad, unsigned flags);

ARGUMENTS         top

       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

       size_t pad  padding to be added to the record

       unsigned flags
                   must be zero

DESCRIPTION         top

       This function is identical to 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
       gnutls_record_get_max_size() and gnutls_record_overhead_size().

       Note that in order for GnuTLS to provide constant time processing
       of padding and data in TLS1.3, the flag GNUTLS_SAFE_PADDING_CHECK
       must be used in gnutls_init().

RETURNS         top

       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         top


REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       Copyright © 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         top

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

COLOPHON         top

       This page is part of the GnuTLS (GnuTLS Transport Layer Security
       Library) project.  Information about the project can be found at
       ⟨⟩.  If you have a bug report for this
       manual page, send it to  This page was obtained
       from the tarball gnutls-3.8.0.tar.xz fetched from
       ⟨⟩ on 2023-06-23.  If you
       discover any rendering problems in this HTML version of the page,
       or you believe there is a better or more up-to-date source for
       the page, or you have corrections or improvements to the
       information in this COLOPHON (which is not part of the original
       manual page), send a mail to

gnutls                            3.8.0           gnutls_record_send2(3)