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.
23 #include <sys/socket.h>
24 #include <netinet/in.h>
25 #include <arpa/inet.h>
26 #include <gnutls/gnutls.h>
28 static void * get_creds(char *certfile)
30 static gnutls_certificate_credentials_t cred;
31 gnutls_certificate_allocate_credentials(&cred);
32 gnutls_certificate_set_x509_trust_file(cred, certfile,
37 static void session_new(gnutls_session_t *session)
40 cred = get_creds("cert.pem");
41 gnutls_init(session, GNUTLS_CLIENT);
42 gnutls_set_default_priority(*session);
43 gnutls_credentials_set(*session, GNUTLS_CRD_CERTIFICATE, cred);
46 int main(int argc, char **argv)
48 struct sockaddr_in saddr;
52 gnutls_session_t session;
54 session_new(&session);
55 c = socket(PF_INET, SOCK_STREAM, 0);
56 saddr.sin_family = AF_INET;
57 saddr.sin_port = htons(3456);
58 saddr.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
59 connect(c, (struct sockaddr *) &saddr, sizeof(saddr));
60 gnutls_transport_set_ptr(session, (gnutls_transport_ptr_t) c);
63 write(c, "00000000000000", 14);
64 r = read(c, buffer, 1);
65 if (r != 1 && buffer[0] != 'E')
67 r = read(c, buffer, 14);
70 if ((r = gnutls_handshake(session)) < 0)
71 fprintf(stderr, "error in handshake: %s\n",
74 fprintf(stderr, "handshake ok\n");
76 gnutls_record_send(session, buffer, 1);
77 while ((r = gnutls_record_recv(session, buffer, sizeof(buffer))) > 0)
80 gnutls_global_deinit();