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    Command:

    gnutls_certificate_set_retrieve_function

    
    
    

    SYNOPSIS

           #include <gnutls/gnutls.h>
    
           void   gnutls_certificate_set_retrieve_function(gnutls_certificate_cre-
           dentials_t cred, gnutls_certificate_retrieve_function * func);
    
    
    

    ARGUMENTS

           gnutls_certificate_credentials_t cred
                       is a gnutls_certificate_credentials_t structure.
    
           gnutls_certificate_retrieve_function * func
                       is the callback function
    
    
    

    DESCRIPTION

           This function sets a callback to be called in  order  to  retrieve  the
           certificate  to  be  used  in  the  handshake.  You  are advised to use
           gnutls_certificate_set_retrieve_function2() because  it  is  much  more
           efficient in the processing it requires from gnutls.
    
           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_retr2_st* st);
    
            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
           gnutls_x509_rdn_get().
    
            pk_algos  contains  a  list  with  server's acceptable signature algo-
           rithms.  The certificate returned should  support  the  server's  given
           algorithms.
    
            st should contain the certificates and private keys.
    
           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.
    
    
    

    SINCE

           3.0
    
    
    

    REPORTING BUGS

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

    gnutls gnutls_certificate_set_retrieve_function(3)

    
    
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