2 * Copyright (C) 2011 Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
22 #include <sys/socket.h>
23 #include <netinet/in.h>
24 #include <arpa/inet.h>
25 #include <gnutls/gnutls.h>
28 static void * get_creds(char *certfile, char *keyfile)
30 static gnutls_certificate_credentials_t cred;
31 gnutls_dh_params_t dh_params;
32 gnutls_dh_params_init(&dh_params);
33 gnutls_dh_params_generate2(dh_params, DH_BITS);
34 gnutls_certificate_allocate_credentials(&cred);
35 gnutls_certificate_set_x509_key_file(cred, certfile, keyfile,
37 gnutls_certificate_set_dh_params(cred, dh_params);
41 static void session_new(gnutls_session_t *session)
44 cred = get_creds("cert.pem", "key.pem");
45 gnutls_init(session, GNUTLS_SERVER);
46 gnutls_set_default_priority(*session);
47 gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE, cred);
48 gnutls_dh_set_prime_bits(*session, DH_BITS);
52 int main(int argc, char **argv)
55 struct sockaddr_in saddr;
59 gnutls_session_t session;
61 session_new(&session);
62 s = socket(PF_INET, SOCK_STREAM, 0);
63 saddr.sin_family = AF_INET;
64 saddr.sin_port = htons(3456);
65 saddr.sin_addr.s_addr = htonl(INADDR_ANY);
66 bind(s, (struct sockaddr *) &saddr, sizeof(saddr));
68 c = accept(s, NULL, NULL);
70 gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) c);
71 r = read(c, buffer, 1);
72 if (r == 1 && buffer[0] == 1)
74 r = read(c, buffer, 14);
75 if (r == 14 && !memcmp(buffer, "00000000000000", 14))
76 write(c, "08082012225300", 14);
77 if ((r = gnutls_handshake(session)) < 0)
78 fprintf(stderr, "error in handshake: %s\n",
81 fprintf(stderr, "handshake ok\n");
82 while ((r = gnutls_record_recv(session, buffer, sizeof(buffer))) > 0)
85 gnutls_global_deinit();