1gnutls_certificate_set_retrieve_funcgtgninuoutntl(ls3s_)certificate_set_retrieve_function(3)
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6 gnutls_certificate_set_retrieve_function - API function
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9 #include <gnutls/gnutls.h>
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11 void gnutls_certificate_set_retrieve_function(gnutls_certificate_cre‐
12 dentials_t cred, gnutls_certificate_retrieve_function * func);
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15 gnutls_certificate_credentials_t cred
16 is a gnutls_certificate_credentials_t structure.
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18 gnutls_certificate_retrieve_function * func
19 is the callback function
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22 This function sets a callback to be called in order to retrieve the
23 certificate to be used in the handshake. You are advised to use
24 gnutls_certificate_set_retrieve_function2() because it is much more
25 efficient in the processing it requires from gnutls.
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27 The callback's function prototype is: int (*callback)(gnutls_session_t,
28 const gnutls_datum_t* req_ca_dn, int nreqs, const gnutls_pk_algo‐
29 rithm_t* pk_algos, int pk_algos_length, gnutls_retr2_st* st);
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31 req_ca_dn is only used in X.509 certificates. Contains a list with
32 the CA names that the server considers trusted. Normally we should
33 send a certificate that is signed by one of these CAs. These names are
34 DER encoded. To get a more meaningful value use the function
35 gnutls_x509_rdn_get().
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37 pk_algos contains a list with server's acceptable signature algo‐
38 rithms. The certificate returned should support the server's given
39 algorithms.
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41 st should contain the certificates and private keys.
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43 If the callback function is provided then gnutls will call it, in the
44 handshake, after the certificate request message has been received.
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46 In server side pk_algos and req_ca_dn are NULL.
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48 The callback function should set the certificate list to be sent, and
49 return 0 on success. If no certificate was selected then the number of
50 certificates should be set to zero. The value (-1) indicates error and
51 the handshake will be terminated.
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54 3.0
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57 Report bugs to <bugs@gnutls.org>.
58 Home page: http://www.gnutls.org
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62 Copyright © 2001-2014 Free Software Foundation, Inc..
63 Copying and distribution of this file, with or without modification,
64 are permitted in any medium without royalty provided the copyright
65 notice and this notice are preserved.
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68 The full documentation for gnutls is maintained as a Texinfo manual.
69 If the /usr/share/doc/gnutls/ directory does not contain the HTML form
70 visit
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72 http://www.gnutls.org/manual/
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74gnutls g3n.u3t.l2s9_certificate_set_retrieve_function(3)