/usr/share/doc/gnutls26-doc/examples/ex-session-info.c is in gnutls26-doc 2.12.23-12ubuntu2.8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 | /* This example code is placed in the public domain. */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdlib.h>
#include <gnutls/gnutls.h>
#include <gnutls/x509.h>
#include "examples.h"
/* This function will print some details of the
* given session.
*/
int
print_info (gnutls_session_t session)
{
const char *tmp;
gnutls_credentials_type_t cred;
gnutls_kx_algorithm_t kx;
/* print the key exchange's algorithm name
*/
kx = gnutls_kx_get (session);
tmp = gnutls_kx_get_name (kx);
printf ("- Key Exchange: %s\n", tmp);
/* Check the authentication type used and switch
* to the appropriate.
*/
cred = gnutls_auth_get_type (session);
switch (cred)
{
case GNUTLS_CRD_IA:
printf ("- TLS/IA session\n");
break;
#ifdef ENABLE_SRP
case GNUTLS_CRD_SRP:
printf ("- SRP session with username %s\n",
gnutls_srp_server_get_username (session));
break;
#endif
case GNUTLS_CRD_PSK:
/* This returns NULL in server side.
*/
if (gnutls_psk_client_get_hint (session) != NULL)
printf ("- PSK authentication. PSK hint '%s'\n",
gnutls_psk_client_get_hint (session));
/* This returns NULL in client side.
*/
if (gnutls_psk_server_get_username (session) != NULL)
printf ("- PSK authentication. Connected as '%s'\n",
gnutls_psk_server_get_username (session));
break;
case GNUTLS_CRD_ANON: /* anonymous authentication */
printf ("- Anonymous DH using prime of %d bits\n",
gnutls_dh_get_prime_bits (session));
break;
case GNUTLS_CRD_CERTIFICATE: /* certificate authentication */
/* Check if we have been using ephemeral Diffie-Hellman.
*/
if (kx == GNUTLS_KX_DHE_RSA || kx == GNUTLS_KX_DHE_DSS)
{
printf ("\n- Ephemeral DH using prime of %d bits\n",
gnutls_dh_get_prime_bits (session));
}
/* if the certificate list is available, then
* print some information about it.
*/
print_x509_certificate_info (session);
} /* switch */
/* print the protocol's name (ie TLS 1.0)
*/
tmp = gnutls_protocol_get_name (gnutls_protocol_get_version (session));
printf ("- Protocol: %s\n", tmp);
/* print the certificate type of the peer.
* ie X.509
*/
tmp =
gnutls_certificate_type_get_name (gnutls_certificate_type_get (session));
printf ("- Certificate Type: %s\n", tmp);
/* print the compression algorithm (if any)
*/
tmp = gnutls_compression_get_name (gnutls_compression_get (session));
printf ("- Compression: %s\n", tmp);
/* print the name of the cipher used.
* ie 3DES.
*/
tmp = gnutls_cipher_get_name (gnutls_cipher_get (session));
printf ("- Cipher: %s\n", tmp);
/* Print the MAC algorithms name.
* ie SHA1
*/
tmp = gnutls_mac_get_name (gnutls_mac_get (session));
printf ("- MAC: %s\n", tmp);
return 0;
}
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