/*

 * Copyright (C) 2014 Red Hat, Inc.

 *

 * Author: Nikos Mavrogiannopoulos

 *

 * This file is part of GnuTLS.

 *

 * GnuTLS is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License as published by

 * the Free Software Foundation; either version 3 of the License, or

 * (at your option) any later version.

 *

 * GnuTLS is distributed in the hope that it will be useful, but

 * WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

 * General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with GnuTLS; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA

 */

#ifdef HAVE_CONFIG_H

#include <config.h>

#endif

#include <stdio.h>

#include <stdlib.h>

#if defined(_WIN32)

int main()

{

	exit(77);

}

#else

#include <string.h>

#include <sys/types.h>

#include <netinet/in.h>

#include <sys/socket.h>

#include <sys/wait.h>

#include <arpa/inet.h>

#include <unistd.h>

#include <gnutls/gnutls.h>

#include <gnutls/dtls.h>

#include <signal.h>

#include "utils.h"

/* This program tests whether the import functions sort the 

 * chain.

 */

static void client_log_func(int level, const char *str)

{

	fprintf(stderr, "client|<%d>| %s", level, str);

}

static unsigned char server_cert_pem[] =

/* 0 */    "-----BEGIN CERTIFICATE-----\n"

    "MIIDIzCCAgugAwIBAgIMVHc8lDcqr/T62g5oMA0GCSqGSIb3DQEBCwUAMA8xDTAL\n"

    "BgNVBAMTBENBLTIwIhgPMjAxNDExMjcxNTAwMzZaGA85OTk5MTIzMTIzNTk1OVow\n"

    "EzERMA8GA1UEAxMIc2VydmVyLTMwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK\n"

    "AoIBAQCsfFrZmOxA7ijkppwPtakc8ecuBRr9Dr4pe/alC/OXVZsZlAlnR0xd53XF\n"

    "uUPwo9Ga2q7iY8+8yPRNs8gfl6IrHvUUtaukWdMlQq5nhRFaPgOzHOEZGGEUk3UF\n"

    "R/8lld6xQFoe7FvHwQ5cIkIl0cN/I4jiUb9fQhRwcBPjmQbCisYXUZDe8KtCnkjw\n"

    "ZZfOp7UclWPm+hv4G3cfeRUUis0Xf8sScjLAam7ojkGL9CeETXl1JGSqqmVN7svN\n"

    "yDsiQebCSrA4wCt+ENe9rE6Cme6dEv+U4lyx4oijn4sNvPwwgmu+/g6XjhE6IWBL\n"

    "kWXLJ1K4rixbqt3d3+H7IAFiX99bAgMBAAGjdzB1MAwGA1UdEwEB/wQCMAAwFAYD\n"

    "VR0RBA0wC4IJbG9jYWxob3N0MA8GA1UdDwEB/wQFAwMHoAAwHQYDVR0OBBYEFNt6\n"

    "DwawLeNaZ+5LMNBdeTVWZsmOMB8GA1UdIwQYMBaAFCjlkQq5yKVHzXPQLahHCcmS\n"

    "AJRpMA0GCSqGSIb3DQEBCwUAA4IBAQClbMnEQpHwwqcdrGKiNXQYyJDClVfQFTlh\n"

    "fTU2qUx8gfyP+1yR0lqsdremSzSjLPM6LmcJLAdu7GhL32Lc3068CCzDtd6vJDGf\n"

    "vO1eudcixbAf7NuELCZM08wLuJvKQFlNYFSVZSb04habhcwgowsiy0YC+dF9XQKa\n"

    "5YDGvOuMTqqKt5Wph+izCGQ+6WyRZQp2CIFWo0vBCYFaslaA/TBnsldIuACJFmg9\n"

    "kmspW97ROmNr1jfQNyBVWjd1EER80zZCngXq4+JnP1tppJNcYFhHeqSGQCqASehY\n"

    "CC7ITbKAK8IdwU4gVk7R92rOKyrFPimc1UwObNpxbL5jizZqemW7\n"

    "-----END CERTIFICATE-----\n"

/* 3 */    "-----BEGIN CERTIFICATE-----\n"

    "MIIC9TCCAd2gAwIBAgIBADANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwRDQS0w\n"

    "MCIYDzIwMTQxMTI3MTUwMDM2WhgPOTk5OTEyMzEyMzU5NTlaMA8xDTALBgNVBAMT\n"

    "BENBLTAwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQC16A/jNGbd6oP3\n"

    "t/neq6hlWopjKEPnM9FMZgPSNVsKtQEb1dOx2EDCuP3rC2POogAjo0NuE/SZtM0N\n"

    "Nyf+X3QdjwcFdugMLTXGmGlEhCeWhSEjLwrd6eapdHzwpV0Ag22CvzoKEQenu92+\n"

    "TI1MN/1j3XOgnOP3t4q5TeSZn7XtAMCBqt9b+LJT5XJ/sF6b1sH803HqV3CZ6ga+\n"

    "kFY+uDcpImQEJNZi/B1xYObSHF+frg4SyeqjxiV9vmFHhRgLmD96iVukQTC/RPX3\n"

    "ntl0wGBjpmglUVdcAJdZL7L2um1T1n3u+jS3U5FW7+MOnnTGqRT2pcYtHHLg2GDf\n"

    "SSUpeuphAgMBAAGjWDBWMA8GA1UdEwEB/wQFMAMBAf8wEwYDVR0lBAwwCgYIKwYB\n"

    "BQUHAwkwDwYDVR0PAQH/BAUDAwcGADAdBgNVHQ4EFgQU1aTwaphaQJeRY+IF9NNT\n"

    "mHHpIQ0wDQYJKoZIhvcNAQELBQADggEBAGUjVPu4aeel7UmgUvjBEpGbw6j9wKRL\n"

    "4vVgGllKWH0diISEjPcJv0dTDJs4ZbY7KAEc4DRCl1QwNFsuASP5BlMSrWo+eGiC\n"

    "oxsndY2EIpHAheLHXkVwbOwM5VRN2IhlcmVtHM370luvJjNa1MXy1p1/VEjGS794\n"

    "FgtMOm9yILCM8WqwRHOY/mAOu/9iY/Zfqfobm+IfqgBmQMOLAIMKJffh15meTDRi\n"

    "W3QXdf/khr1T3JEJ55t1WxcC1cWV4FnecUU4wlKs1mBghV+/8cgbYjoIdUAsYsdv\n"

    "SjySP3B65XXw9G3MmHOjNoRpF7Oeea8tN+zxw3xFx/a9Uq19BdOlrHE=\n"

    "-----END CERTIFICATE-----\n"

/* 1 */    "-----BEGIN CERTIFICATE-----\n"

    "MIIDFjCCAf6gAwIBAgIBAjANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwRDQS0x\n"

    "MCIYDzIwMTQxMTI3MTUwMDM2WhgPOTk5OTEyMzEyMzU5NTlaMA8xDTALBgNVBAMT\n"

    "BENBLTIwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDOnFo6ntaysv14\n"

    "ewFwkm+mbE/8hEiZEcMNnWNSJb9tgpATLgu9LefStzRIvzns4OyLL77TEz8Gl8gJ\n"

    "syfba2aIKxLveO1jpqQSfkcVlufa/GHspPKMkHMjz1UB+fQEAazAjVKHoofemKxW\n"

    "0TtLeuL0LoE4g452Yy60vxRNwOs7WPZ5lktIQTYZTYcEjiiVlrRXXGgo9qCSfG4n\n"

    "B+TmlraGHHPlKINcsOJnZOOZ6qHx+ZpqeCvuD7apiPcVzfLhxdJFoznY4r/bdCZT\n"

    "ehChrKCYk5DmaPRBW0TLWoYrny745SG9U8XzTkKYaCDLhyMvn1oMrRVdbwO3/e6q\n"

    "DbEvbpUrAgMBAAGjeTB3MA8GA1UdEwEB/wQFMAMBAf8wEwYDVR0lBAwwCgYIKwYB\n"

    "BQUHAwkwDwYDVR0PAQH/BAUDAwcEADAdBgNVHQ4EFgQUKOWRCrnIpUfNc9AtqEcJ\n"

    "yZIAlGkwHwYDVR0jBBgwFoAUarsjXomEecxGrV0LDBX8Dy+vh68wDQYJKoZIhvcN\n"

    "AQELBQADggEBAKgo2SIyLywamhcqLnhxCXgx0SHJgmEVD7CvPgTISZisg5yMS77G\n"

    "WqtHbyo7kOYIjbrzVRGOsijKmgCgqNTQXSMbWUfDOV93q82nV0bjQtnvZKMc0+OM\n"

    "/cB5PA7BFKvVrpYGefFQtrgkFhHSoUwDtpJAdYJPWgUMiqpvDuQdD/d6FQ18rb7w\n"

    "QuIIvUeHaawm8HLrJ5JZoy7BnryY4SEFqGSTeNWp4CyeTeQPAcCdZ3NlnSDV1RM2\n"

    "QelcD8S6GAp8l8LcF1zqiaoqWVYdeVnO6Doabx/IP7ZxctcdaEAdUQYjJ/dG3A2p\n"

    "wpf3tVoOBKFByhdBrz7uda09sq57+AmvQdk=\n"

    "-----END CERTIFICATE-----\n"

/* 2 */    "-----BEGIN CERTIFICATE-----\n"

    "MIIDFjCCAf6gAwIBAgIBATANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDEwRDQS0w\n"

    "MCIYDzIwMTQxMTI3MTUwMDM2WhgPOTk5OTEyMzEyMzU5NTlaMA8xDTALBgNVBAMT\n"

    "BENBLTEwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAoIBAQDft9fjnipXU+WO\n"

    "NsIhqVgTkwQPWklvuJbAphYa0oCm/+S0dvalVEq9RMqV+sUtqrZ55LsHxvtD1iu9\n"

    "03kf/FcqaAjSVZBt6n8JIfl4xyi//FYizamm2KEsBCEsUCH6iJGMGXfYAWgpMJ/6\n"

    "yHwikBDI0Ea5ckIW58eWHI6Hmd11DTSy6OGNnOFqyEe3S/m1zTtNNGiA0VcSyAjg\n"

    "98zaWGQHaQuqczqfoMz0dB5ly0mw2LfVxCPM8Z8xH1S9TNVqWnKu483Gp+2TkeKl\n"

    "bJ5dI1XMihaxFq6xf9OsULGtMd8biRNxl8f8zsfd0A9LoPJWKdp345OJ33ULwogI\n"

    "M6kUMw63AgMBAAGjeTB3MA8GA1UdEwEB/wQFMAMBAf8wEwYDVR0lBAwwCgYIKwYB\n"

    "BQUHAwkwDwYDVR0PAQH/BAUDAwcEADAdBgNVHQ4EFgQUarsjXomEecxGrV0LDBX8\n"

    "Dy+vh68wHwYDVR0jBBgwFoAU1aTwaphaQJeRY+IF9NNTmHHpIQ0wDQYJKoZIhvcN\n"

    "AQELBQADggEBALGbNfhgr46cnDIbvPxXmNmMm840oVc9n5pW4be9emTWO67zkqll\n"

    "KBjLbEAZTVSsjqPh8357iR5nVAen23eVYD5eGkuDZZAP3kvfVNVNCTQAEm0XDAse\n"

    "kxbxL0ZWezMbC/U8R3tFSDZOCb/bM+wCKg1hX5My0+utKAmhbwlYQY9fKyhZCUdv\n"

    "GnO3f5JInJDH2FmG80RouZ8Av6CjOwfChz+SPTgrMsbTugYWX9SVQ8oRF+N7cudC\n"

    "7XlvScNQKlbzmMl2zLQOrL78djCLVdU70bZcpq1o7L/R59YNAB+4fGH8rTWZMYQB\n"

    "rSoCPlyNAYAqMPXPsUFV/ngeYNSbpTz3SGA=\n"

    "-----END CERTIFICATE-----\n"

    "\n";

const gnutls_datum_t server_cert = { 

	server_cert_pem,

	sizeof(server_cert_pem)

};

static unsigned char server_key_pem[] =

    "-----BEGIN RSA PRIVATE KEY-----\n"

    "MIIEowIBAAKCAQEArHxa2ZjsQO4o5KacD7WpHPHnLgUa/Q6+KXv2pQvzl1WbGZQJ\n"

    "Z0dMXed1xblD8KPRmtqu4mPPvMj0TbPIH5eiKx71FLWrpFnTJUKuZ4URWj4Dsxzh\n"

    "GRhhFJN1BUf/JZXesUBaHuxbx8EOXCJCJdHDfyOI4lG/X0IUcHAT45kGworGF1GQ\n"

    "3vCrQp5I8GWXzqe1HJVj5vob+Bt3H3kVFIrNF3/LEnIywGpu6I5Bi/QnhE15dSRk\n"

    "qqplTe7Lzcg7IkHmwkqwOMArfhDXvaxOgpnunRL/lOJcseKIo5+LDbz8MIJrvv4O\n"

    "l44ROiFgS5FlyydSuK4sW6rd3d/h+yABYl/fWwIDAQABAoIBAQCL0vc25C/I5wfB\n"

    "a4qhdYsVCsh0VvEs6TGgoXwtCYY7TMtBre79iR/QE902HtyDi9lT5ijVH0J88I6T\n"

    "GsWFTr/Iovzb//WXcrWmw+prwsRxWkpXfXbAiDHSo0K+uEGOr3JqUBd+b+5q/QZu\n"

    "C9uBmw0W2LCTft9bEk9NYp3M5/VB6DaQbk//b7E9KFc7nFgzeQaSYHu9NBSLGZ2e\n"

    "HqvzotiwlI6yfWTPm/esipXWaB4zqesx0TedoNK9SUAFdFBEHTyqm5RoGotjNLoM\n"

    "bN08Fj3qOJekjPGBrMu37UKoRGdaTyPlmCGZ0+HN2F4kuaUGE8HHnUU3VIA3lTMh\n"

    "LGt8jYpxAoGBAMsr8XlLsGFUgntHbCe5GhNKd9RJtRH1+zNw88ilfjttpxjggcL7\n"

    "KGbcCK1VOhuD0Ud1pTklYFOUckZY6y1b4nUkp5SG4w8OiIcIZeE9erKwprnHa9RF\n"

    "cewMtYhJ68evPrbM9UHEkTbdNBI4Cv561cY80pnsMTxy9al/aM23SLIJAoGBANlV\n"

    "0J/lUuA4Lsvrtu/IriwUguMIBw7hC5gBIU58K9Xpo6fr55VTt6OALDrY5zbCPf38\n"

    "pGMZgPsP3FG61BycA7jWB01Y++3COYKNKQtddWuY0SqCVS7Mdt6DwpYwUD7gRDY3\n"

    "aIHMUP45glYEVnHgpwNM09f+ldiK4TnCJuKYRM9DAoGAYM3NPlf78EQN76M2Oy8M\n"

    "54gh1DpSVf539CirXzzLCpHSfh3qdfapZ2kLkVr8VsPV4VCCqtnOLcSbNj2DwJb5\n"

    "LYuLdU9XvILWNlCgClP6tE1LA1WrYPa9sxTTId7mwrwTC5JYgT+hWRzIhK3DP0FT\n"

    "viKYzdImG4FC38HfM7VSo9ECgYBiP+wnTKlxmZR2NWIm9ibe4IrnDYr7S/tMxT4E\n"

    "WBgNBSkp0XiIxibfcCMOm12zII6b0mmSL0ZiuSHVhMs8/76jAYadjdud+U68WQo0\n"

    "DBT4BkaQnAjcNiyKnTALa13rfsD3bYb+HpqCwwbL0fwuUOvPjxy5qWqeUPJOhRnF\n"

    "GCcLNwKBgHtDlVG5lJqtNty4aL9oBgcP0VcY/73Dx+l25DhprdlTHsjg+ue0rpjA\n"

    "ieq7o2hENu6MA1AQ8o+BP6SlRuhYmvzh7vVbs3qFjnslaMCveHZDITN/0NJqF9xO\n"

    "IeKrLzOIboyQw/sMSrPIPYILgXP0YnueteOgPUSZEcrqPIJI08Sb\n"

    "-----END RSA PRIVATE KEY-----\n";

const gnutls_datum_t server_key = { server_key_pem,

	sizeof(server_key_pem)

};

/* A very basic TLS client, with anonymous authentication.

 */

#define MAX_BUF 1024

static void client(int fd)

{

	int ret;

	const char *p;

	gnutls_certificate_credentials_t x509_cred;

	gnutls_session_t session;

	/* Need to enable anonymous KX specifically. */

	global_init();

	if (debug) {

		gnutls_global_set_log_function(client_log_func);

		gnutls_global_set_log_level(7);

	}

	gnutls_certificate_allocate_credentials(&x509_cred);

	/* Initialize TLS session

	 */

	gnutls_init(&session, GNUTLS_CLIENT);

	/* Use default priorities */

	ret =

	    gnutls_priority_set_direct(session,

					"NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA",

					&p);

	if (ret < 0) {

		fail("error in setting priority: %s\n", p);

		exit(1);

	}

	/* put the anonymous credentials to the current session

	 */

	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);

	gnutls_transport_set_int(session, fd);

	/* Perform the TLS handshake

	 */

	do {

		ret = gnutls_handshake(session);

	}

	while (ret < 0 && gnutls_error_is_fatal(ret) == 0);

	if (ret < 0) {

		if (debug) {

			fail("client: Handshake failed\n");

			gnutls_perror(ret);

		}

		exit(1);

	} else {

		if (debug)

			success("client: Handshake was completed\n");

	}

	if (debug)

		success("client: TLS version is: %s\n",

			gnutls_protocol_get_name

			(gnutls_protocol_get_version(session)));

	close(fd);

	gnutls_deinit(session);

	gnutls_certificate_free_credentials(x509_cred);

	gnutls_global_deinit();

}

/* These are global */

pid_t child;

static void server(int fd)

{

	int ret;

	char buffer[MAX_BUF + 1];

	gnutls_session_t session;

	gnutls_certificate_credentials_t x509_cred;

	/* this must be called once in the program

	 */

	global_init();

	memset(buffer, 0, sizeof(buffer));

	gnutls_init(&session, GNUTLS_SERVER);

	/* avoid calling all the priority functions, since the defaults

	 * are adequate.

	 */

	gnutls_priority_set_direct(session,

				   "NONE:+VERS-TLS1.0:+AES-128-CBC:+SHA1:+SIGN-ALL:+COMP-NULL:+RSA",

				   NULL);

	if (debug) {

		gnutls_global_set_log_level(4711);

	}

	gnutls_certificate_allocate_credentials(&x509_cred);

	ret = gnutls_certificate_set_x509_key_mem(x509_cred, &server_cert,

					    &server_key,

					    GNUTLS_X509_FMT_PEM);

	if (ret < 0) {

		fail("server: gnutls_certificate_set_x509_key_mem: %s\n", gnutls_strerror(ret));

		exit(1);

	}

	gnutls_credentials_set(session, GNUTLS_CRD_CERTIFICATE, x509_cred);

	gnutls_transport_set_int(session, fd);

	do {

		ret = gnutls_handshake(session);

	}

	while (ret < 0 && gnutls_error_is_fatal(ret) == 0);

	if (debug)

		success("server: Handshake was completed\n");

	if (debug)

		success("server: TLS version is: %s\n",

			gnutls_protocol_get_name

			(gnutls_protocol_get_version(session)));

	close(fd);

	gnutls_deinit(session);

	gnutls_certificate_free_credentials(x509_cred);

	gnutls_global_deinit();

	if (debug)

		success("server: finished\n");

}

static void start(void)

{

	int fd[2];

	int ret;

	ret = socketpair(AF_UNIX, SOCK_STREAM, 0, fd);

	if (ret < 0) {

		perror("socketpair");

		exit(1);

	}

	child = fork();

	if (child < 0) {

		perror("fork");

		fail("fork");

		exit(1);

	}

	if (child) {

		/* parent */

		close(fd[0]);

		client(fd[1]);

		waitpid(-1, NULL, 0);

		//kill(child, SIGTERM);

	} else {

		close(fd[1]);

		server(fd[0]);

		exit(0);

	}

}

static void ch_handler(int sig)

{

	int status = 0;

	waitpid(-1, &status, 0);

	check_wait_status(status);

	return;

}

void doit(void)

{

	signal(SIGCHLD, ch_handler);

	signal(SIGPIPE, SIG_IGN);

	start();

}

#endif				/* _WIN32 */