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/*
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* Copyright (C) 2008-2012 Free Software Foundation, Inc.
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* Copyright (C) 2017 Red Hat, Inc.
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*
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* Author: Nikos Mavrogiannopoulos
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*
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* This file is part of GnuTLS.
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*
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* GnuTLS is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* GnuTLS is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GnuTLS; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <gnutls/gnutls.h>
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#include <assert.h>
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#include "utils.h"
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#include "eagain-common.h"
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#include "cert-common.h"
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const char *side;
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static void tls_log_func(int level, const char *str)
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{
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fprintf(stderr, "%s|<%d>| %s", side, level, str);
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}
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static time_t mytime(time_t * t)
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{
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time_t then = 1490171562;
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if (t)
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*t = then;
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return then;
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}
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/* A unit test for GNUTLS_DT_IP_ADDRESS option of
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* gnutls_certificate_verify_peers().
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*/
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void doit(void)
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{
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int exit_code = EXIT_SUCCESS;
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int ret;
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/* Server stuff. */
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gnutls_certificate_credentials_t serverx509cred;
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gnutls_session_t server;
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int sret = GNUTLS_E_AGAIN;
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/* Client stuff. */
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gnutls_certificate_credentials_t clientx509cred;
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gnutls_session_t client;
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int cret = GNUTLS_E_AGAIN;
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gnutls_typed_vdata_st data[2];
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gnutls_datum_t t;
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unsigned status;
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/* General init. */
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global_init();
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gnutls_global_set_log_function(tls_log_func);
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if (debug)
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gnutls_global_set_log_level(6);
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gnutls_global_set_time_function(mytime);
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/* Init server */
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assert(gnutls_certificate_allocate_credentials(&serverx509cred)>=0);
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ret = gnutls_certificate_set_x509_key_mem(serverx509cred,
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&server_ca3_ipaddr_cert, &server_ca3_key,
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GNUTLS_X509_FMT_PEM);
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if (ret < 0) {
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fail("could not import cert: %s\n", gnutls_strerror(ret));
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}
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assert(gnutls_init(&server, GNUTLS_SERVER)>=0);
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gnutls_credentials_set(server, GNUTLS_CRD_CERTIFICATE,
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serverx509cred);
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assert(gnutls_set_default_priority(server)>=0);
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gnutls_transport_set_push_function(server, server_push);
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gnutls_transport_set_pull_function(server, server_pull);
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gnutls_transport_set_ptr(server, server);
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/* Init client */
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ret = gnutls_certificate_allocate_credentials(&clientx509cred);
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if (ret < 0)
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exit(1);
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ret = gnutls_certificate_set_x509_trust_mem(clientx509cred, &ca3_cert, GNUTLS_X509_FMT_PEM);
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if (ret < 0)
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exit(1);
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ret = gnutls_init(&client, GNUTLS_CLIENT);
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if (ret < 0)
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exit(1);
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ret = gnutls_credentials_set(client, GNUTLS_CRD_CERTIFICATE,
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clientx509cred);
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if (ret < 0)
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exit(1);
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assert(gnutls_set_default_priority(client) >= 0);
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gnutls_transport_set_push_function(client, client_push);
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gnutls_transport_set_pull_function(client, client_pull);
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gnutls_transport_set_ptr(client, client);
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HANDSHAKE(client, server);
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/* attempt to verify */
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{
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/* try hostname - which is invalid */
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memset(data, 0, sizeof(data));
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data[0].type = GNUTLS_DT_DNS_HOSTNAME;
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data[0].data = (void*)"localhost1";
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data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
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data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
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ret = gnutls_certificate_verify_peers(client, data, 2, &status);
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if (ret < 0) {
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fail("could not verify certificate: %s\n", gnutls_strerror(ret));
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exit(1);
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}
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if (status == 0) {
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fail("should not have accepted!\n");
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exit(1);
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}
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/* try bogus IP */
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memset(data, 0, sizeof(data));
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data[0].type = GNUTLS_DT_IP_ADDRESS;
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data[0].data = (void*)"\x01\x00\x01\x02";
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data[0].size = 4;
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data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
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data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
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ret = gnutls_certificate_verify_peers(client, data, 2, &status);
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if (ret < 0) {
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fail("could not verify certificate: %s\n", gnutls_strerror(ret));
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exit(1);
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}
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if (status == 0) {
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fail("should not have accepted!\n");
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exit(1);
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}
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/* try correct IP */
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memset(data, 0, sizeof(data));
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data[0].type = GNUTLS_DT_IP_ADDRESS;
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data[0].data = (void*)"\x7f\x00\x00\x01";
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data[0].size = 4;
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data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
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data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
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ret = gnutls_certificate_verify_peers(client, data, 2, &status);
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if (ret < 0) {
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fail("could not verify certificate: %s\n", gnutls_strerror(ret));
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exit(1);
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}
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if (status != 0) {
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assert(gnutls_certificate_verification_status_print(status, GNUTLS_CRT_X509, &t, 0)>=0);
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fail("could not verify: %s/%.4x!\n", t.data, status);
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}
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/* try the other verification functions */
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ret = gnutls_certificate_verify_peers3(client, "127.0.0.1", &status);
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if (ret < 0) {
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fail("could not verify certificate: %s\n", gnutls_strerror(ret));
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exit(1);
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}
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if (status != 0) {
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assert(gnutls_certificate_verification_status_print(status, GNUTLS_CRT_X509, &t, 0)>=0);
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fail("could not verify: %s/%.4x!\n", t.data, status);
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}
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}
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{
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/* change the flags */
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gnutls_certificate_set_verify_flags(clientx509cred, GNUTLS_VERIFY_DO_NOT_ALLOW_IP_MATCHES);
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/* now the compatibility option should fail */
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ret = gnutls_certificate_verify_peers3(client, "127.0.0.1", &status);
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if (ret < 0) {
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fail("could not verify certificate: %s\n", gnutls_strerror(ret));
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exit(1);
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}
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if (status == 0) {
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fail("should not have accepted!\n");
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exit(1);
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}
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memset(data, 0, sizeof(data));
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data[0].type = GNUTLS_DT_DNS_HOSTNAME;
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data[0].data = (void*)"127.0.0.1";
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data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
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data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
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ret = gnutls_certificate_verify_peers(client, data, 2, &status);
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if (ret < 0) {
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fail("could not verify certificate: %s\n", gnutls_strerror(ret));
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exit(1);
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}
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if (status == 0) {
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fail("should not have accepted!\n");
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exit(1);
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}
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/* try again the right one */
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memset(data, 0, sizeof(data));
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data[0].type = GNUTLS_DT_IP_ADDRESS;
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data[0].data = (void*)"\x7f\x00\x00\x01";
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data[0].size = 4;
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data[1].type = GNUTLS_DT_KEY_PURPOSE_OID;
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data[1].data = (void*)GNUTLS_KP_TLS_WWW_SERVER;
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ret = gnutls_certificate_verify_peers(client, data, 2, &status);
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if (ret < 0) {
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fail("could not verify certificate: %s\n", gnutls_strerror(ret));
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exit(1);
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}
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if (status != 0) {
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assert(gnutls_certificate_verification_status_print(status, GNUTLS_CRT_X509, &t, 0)>=0);
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fail("could not verify: %s/%.4x!\n", t.data, status);
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}
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}
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gnutls_bye(client, GNUTLS_SHUT_RDWR);
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gnutls_bye(server, GNUTLS_SHUT_RDWR);
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gnutls_deinit(client);
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gnutls_deinit(server);
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gnutls_certificate_free_credentials(serverx509cred);
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gnutls_certificate_free_credentials(clientx509cred);
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gnutls_global_deinit();
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if (debug > 0) {
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if (exit_code == 0)
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puts("Self-test successful");
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else
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puts("Self-test failed");
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}
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}
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