/*
 * Copyright (C) 2012 Free Software Foundation, 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>
#include <string.h>
#include <gnutls/gnutls.h>

#include "utils.h"

static void
try_prio (const char* prio, unsigned expected_cs, unsigned expected_ciphers)
{
int ret;
gnutls_priority_t p;
const char* err;
const unsigned int * t;
unsigned i, si, count = 0;

  /* this must be called once in the program
   */
  global_init ();
  
  ret = gnutls_priority_init(&p, prio, &err);
  if (ret < 0)
    {
      fprintf(stderr, "error: %s: %s\n", gnutls_strerror(ret), err);
      exit(1);
    }
  
  for (i=0;;i++)
    {
      ret = gnutls_priority_get_cipher_suite_index(p, i, &si);
      if (ret == GNUTLS_E_UNKNOWN_CIPHER_SUITE)
      	continue;
      else if (ret == GNUTLS_E_REQUESTED_DATA_NOT_AVAILABLE)
      	break;
      else if (ret == 0)
        {
          count++;
          /* fprintf(stderr, "%s\n", gnutls_cipher_suite_info(si, NULL, NULL, NULL, NULL, NULL)); */
        }

    }
  
  ret = gnutls_priority_cipher_list (p, &t);
  if ((unsigned)ret != expected_ciphers)
    {
#if 0
for (i=0;i<ret;i++)
  fprintf(stderr, "%s\n", gnutls_cipher_get_name(t[i]));
#endif
      fail("expected %d ciphers, found %d\n", expected_ciphers, ret);
      exit(1);
    }
  
  gnutls_priority_deinit(p);
  
  /* fprintf(stderr, "count: %d\n", count); */

  if (debug)
    success ("finished: %s\n", prio);
  
  if (count != expected_cs) 
    {
      fail("expected %d ciphersuites, found %d\n", expected_cs, count);
      exit(1);
    }
}

void
doit (void)
{
const int normal = 40;
const int null = 5;
const int sec128 = 32;

  try_prio("NORMAL", normal, 8);
  try_prio("NORMAL:-MAC-ALL:+MD5:+MAC-ALL", normal, 8);
  try_prio("NORMAL:+CIPHER-ALL", normal, 8); /* all (except null) */
  try_prio("NORMAL:-CIPHER-ALL:+NULL", null, 1); /* null */
  try_prio("NORMAL:-CIPHER-ALL:+NULL:+CIPHER-ALL", normal+null, 9); /* should be null + all */
  try_prio("NORMAL:-CIPHER-ALL:+NULL:+CIPHER-ALL:-CIPHER-ALL:+AES-128-CBC", 10, 1); /* should be null + all */
  try_prio("PERFORMANCE", normal, 8);
  try_prio("SECURE256", 6, 3);
  try_prio("SECURE128", sec128, 6);
  try_prio("SECURE128:+SECURE256", sec128, 6); /* should be the same as SECURE128 */
  try_prio("SECURE128:+SECURE256:+NORMAL", normal, 8); /* should be the same as NORMAL */
  try_prio("SUITEB192", 1, 1);
}