gnutls_dtls_cookie_send man page on Manjaro

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gnutls_dtls_cookie_send(3)	    gnutls	    gnutls_dtls_cookie_send(3)

       gnutls_dtls_cookie_send - API function

       #include <gnutls/dtls.h>

       int  gnutls_dtls_cookie_send(gnutls_datum_t  * key, void * client_data,
       size_t	client_data_size,    gnutls_dtls_prestate_st	*    prestate,
       gnutls_transport_ptr_t ptr, gnutls_push_func push_func);

       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

       gnutls_dtls_prestate_st * prestate
		   The previous cookie returned by gnutls_dtls_cookie_verify()

       gnutls_transport_ptr_t ptr
		   A transport pointer to be used by  push_func

       gnutls_push_func push_func
		   A function that will be used to reply

       This  function  can  be	used to prevent denial of service attacks to a
       DTLS server by requiring the client to reply using  a  cookie  sent  by
       this  function.	That  way it can be ensured that a client we allocated
       resources for (i.e. gnutls_session_t) is	 the  one  that	 the  original
       incoming packet was originated from.

       This  function  must  be	 called at the first incoming packet, prior to
       allocating    any    resources	 and	must	be    succeeded	    by

       the number of bytes sent, or a negative error code.


       Report bugs to <>.
       Home page:

       Copyright © 2001-2014 Free Software Foundation, Inc..
       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.

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

gnutls				     3.3.1	    gnutls_dtls_cookie_send(3)

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