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gnutls_record_send_range(3)         gnutls         gnutls_record_send_range(3)


NAME

       gnutls_record_send_range - API function


SYNOPSIS

       #include <gnutls/gnutls.h>

       ssize_t gnutls_record_send_range(gnutls_session_t session, const void *
       data, size_t data_size, const gnutls_range_st * range);


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.

       const gnutls_range_st * range
                   is the range of lengths in which the real data length must
                   be hidden.


DESCRIPTION

       This function operates like gnutls_record_send() but, while
       gnutls_record_send() adds minimal padding to each TLS record, this
       function uses the TLS extra-padding feature to conceal the real data
       size within the range of lengths provided.  Some TLS sessions do not
       support extra padding (e.g. stream ciphers in standard TLS or SSL3
       sessions). To know whether the current session supports extra padding,
       and hence length hiding, use the gnutls_record_can_use_length_hiding()
       function.


NOTE

       This function currently is limited to blocking sockets.


RETURNS

       The number of bytes sent (that is data_size in a successful
       invocation), or a negative error code.


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_range(3)

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