gnutls_certificate_set_retrieve_function2 man page on Archlinux

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       gnutls_certificate_set_retrieve_function2 - API function

       #include <gnutls/abstract.h>

       void  gnutls_certificate_set_retrieve_function2(gnutls_certificate_cre‐
       dentials_t cred, gnutls_certificate_retrieve_function2 * func);

       gnutls_certificate_credentials_t cred
		   is a gnutls_certificate_credentials_t structure.

       gnutls_certificate_retrieve_function2 * func
		   is the callback function

       This function sets a callback to be called in  order  to	 retrieve  the
       certificate to be used in the handshake.

       The callback's function prototype is: int (*callback)(gnutls_session_t,
       const  gnutls_datum_t*  req_ca_dn,  int	nreqs,	const  gnutls_pk_algo‐
       rithm_t*	  pk_algos,   int  pk_algos_length,  gnutls_pcert_st**	pcert,
       unsigned int *pcert_length, gnutls_privkey_t * pkey);

	req_ca_cert is only used in X.509 certificates.	 Contains a list  with
       the  CA	names  that  the server considers trusted.  Normally we should
       send a certificate that is signed by one of these CAs. These names  are
       DER   encoded.  To  get	a  more	 meaningful  value  use	 the  function

	pk_algos contains a list  with	server's  acceptable  signature	 algo‐
       rithms.	 The  certificate  returned  should support the server's given

	pcert should contain a single certificate and  public  or  a  list  of

	pcert_length is the size of the previous list.

	pkey is the private key.

       If  the	callback function is provided then gnutls will call it, in the
       handshake, after the certificate request message has been received.

       In server side pk_algos and req_ca_dn are NULL.

       The callback function should set the certificate list to be  sent,  and
       return  0 on success. If no certificate was selected then the number of
       certificates should be set to zero. The value (-1) indicates error  and
       the handshake will be terminated.


       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				  gnutls_certificate_set_retrieve_function2(3)

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