NAME

       gnutls_record_recv_seq - API function

SYNOPSIS

       #include <gnutls/gnutls.h>

       ssize_t  gnutls_record_recv_seq(gnutls_session_t  session,  void * data, size_t data_size,
       unsigned char * seq);

ARGUMENTS

       gnutls_session_t session
                   is a gnutls_session_t type.

       void * data the buffer that the data will be read into

       size_t data_size
                   the number of requested bytes

       unsigned char * seq
                   is the packet's 64-bit sequence number. Should have space for 8 bytes.

DESCRIPTION

       This function is the same as gnutls_record_recv(), except that it returns in  addition  to
       data,  the sequence number of the data.  This is useful in DTLS where record packets might
       be received out-of-order. The returned 8-byte sequence number is an integer in  big-endian
       format and should be treated as a unique message identification.

RETURNS

       The  number  of bytes received and zero on EOF.  A negative error code is returned in case
       of an error.  The number of bytes received might be less than  data_size .

SINCE

       3.0

REPORTING BUGS

       Report bugs to <bugs@gnutls.org>.
       Home page: http://www.gnutls.org

COPYRIGHT

       Copyright © 2001-2022 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/share/doc/gnutls/ directory does not contain the HTML form visit

       http://www.gnutls.org/manual/