NAME

       gnutls_dtls_cookie_verify - API function

SYNOPSIS

       #include <gnutls/dtls.h>

       int   gnutls_dtls_cookie_verify(gnutls_datum_t   *   key,   void   *  client_data,  size_t
       client_data_size, void * _msg, size_t msg_size, gnutls_dtls_prestate_st * prestate);

ARGUMENTS

       gnutls_datum_t * key
                   is a random key to be used at cookie generation

       void * client_data
                   contains data identifying the client (i.e. address)

       size_t client_data_size
                   The size of client's data

       void * _msg An incoming message that initiates a connection.

       size_t msg_size
                   The size of the message.

       gnutls_dtls_prestate_st * prestate
                   The cookie of this client.

DESCRIPTION

       This function will verify the received message for a valid cookie. If a  valid  cookie  is
       returned then it should be associated with the session using gnutls_dtls_prestate_set();

       This function must be called after gnutls_dtls_cookie_send().

RETURNS

       GNUTLS_E_SUCCESS (0) on success, or a negative error code.

SINCE

       3.0

REPORTING BUGS

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

COPYRIGHT

       Copyright © 2001-2021 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/