gnutls_record_set_max_size(3) — Linux manual page


gnutls_record_set_max_size(3)      gnutls      gnutls_record_set_max_size(3)

NAME         top

       gnutls_record_set_max_size - API function

SYNOPSIS         top

       #include <gnutls/gnutls.h>

       ssize_t gnutls_record_set_max_size(gnutls_session_t session, size_t

ARGUMENTS         top

       gnutls_session_t session
                   is a gnutls_session_t type.

       size_t size is the new size

DESCRIPTION         top

       This function sets the maximum amount of plaintext sent and received
       in a record in this connection.

       Prior to 3.6.4, this function was implemented using a TLS extension
       called 'max fragment length', which limits the acceptable values to
       512(=2^9), 1024(=2^10), 2048(=2^11) and 4096(=2^12).

       Since 3.6.4, the limit is also negotiated through a new TLS extension
       called 'record size limit', which doesn't have the limitation, as
       long as the value ranges between 512 and 16384.  Note that while the
       'record size limit' extension is preferred, not all TLS
       implementations use or even understand the extension.

DEPRECATED         top

       if the client can assume that the 'record size limit' extension is
       supported by the server, we recommend using
       gnutls_record_set_max_recv_size() instead.

RETURNS         top

       On success, GNUTLS_E_SUCCESS (0) is returned, otherwise a negative
       error code is returned.

REPORTING BUGS         top

       Report bugs to <>.
       Home page:

COPYRIGHT         top

       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.

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
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       ⟨⟩ on 2020-09-18.  If you discover
       any rendering problems in this HTML version of the page, or you
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gnutls                              3.6.9      gnutls_record_set_max_size(3)