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      1 /* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
      2 /* dbus-marshal-byteswap-util.c  Would be in dbus-marshal-byteswap.c but tests/bus only
      3  *
      4  * Copyright (C) 2005 Red Hat, Inc.
      5  *
      6  * Licensed under the Academic Free License version 2.1
      7  *
      8  * This program is free software; you can redistribute it and/or modify
      9  * it under the terms of the GNU General Public License as published by
     10  * the Free Software Foundation; either version 2 of the License, or
     11  * (at your option) any later version.
     12  *
     13  * This program is distributed in the hope that it will be useful,
     14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     16  * GNU General Public License for more details.
     17  *
     18  * You should have received a copy of the GNU General Public License
     19  * along with this program; if not, write to the Free Software
     20  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
     21  *
     22  */
     23 
     24 #include <config.h>
     25 
     26 #ifdef DBUS_BUILD_TESTS
     27 #include "dbus-marshal-byteswap.h"
     28 #include "dbus-test.h"
     29 #include <stdio.h>
     30 
     31 static void
     32 do_byteswap_test (int byte_order)
     33 {
     34   int sequence;
     35   DBusString signature;
     36   DBusString body;
     37   int opposite_order;
     38 
     39   if (!_dbus_string_init (&signature) || !_dbus_string_init (&body))
     40     _dbus_assert_not_reached ("oom");
     41 
     42   opposite_order = byte_order == DBUS_LITTLE_ENDIAN ? DBUS_BIG_ENDIAN : DBUS_LITTLE_ENDIAN;
     43 
     44   sequence = 0;
     45   while (dbus_internal_do_not_use_generate_bodies (sequence,
     46                                                    byte_order,
     47                                                    &signature, &body))
     48     {
     49       DBusString copy;
     50       DBusTypeReader body_reader;
     51       DBusTypeReader copy_reader;
     52 
     53       if (!_dbus_string_init (&copy))
     54         _dbus_assert_not_reached ("oom");
     55 
     56       if (!_dbus_string_copy (&body, 0, &copy, 0))
     57         _dbus_assert_not_reached ("oom");
     58 
     59       _dbus_marshal_byteswap (&signature, 0,
     60                               byte_order,
     61                               opposite_order,
     62                               &copy, 0);
     63 
     64       _dbus_type_reader_init (&body_reader, byte_order, &signature, 0,
     65                               &body, 0);
     66       _dbus_type_reader_init (&copy_reader, opposite_order, &signature, 0,
     67                               &copy, 0);
     68 
     69       if (!_dbus_type_reader_equal_values (&body_reader, &copy_reader))
     70         {
     71           _dbus_verbose_bytes_of_string (&signature, 0,
     72                                          _dbus_string_get_length (&signature));
     73           _dbus_verbose_bytes_of_string (&body, 0,
     74                                          _dbus_string_get_length (&body));
     75           _dbus_verbose_bytes_of_string (&copy, 0,
     76                                          _dbus_string_get_length (&copy));
     77 
     78           _dbus_warn ("Byte-swapped data did not have same values as original data\n");
     79           _dbus_assert_not_reached ("test failed");
     80         }
     81 
     82       _dbus_string_free (&copy);
     83 
     84       _dbus_string_set_length (&signature, 0);
     85       _dbus_string_set_length (&body, 0);
     86       ++sequence;
     87     }
     88 
     89   _dbus_string_free (&signature);
     90   _dbus_string_free (&body);
     91 
     92   printf ("  %d blocks swapped from order '%c' to '%c'\n",
     93           sequence, byte_order, opposite_order);
     94 }
     95 
     96 dbus_bool_t
     97 _dbus_marshal_byteswap_test (void)
     98 {
     99   do_byteswap_test (DBUS_LITTLE_ENDIAN);
    100   do_byteswap_test (DBUS_BIG_ENDIAN);
    101 
    102   return TRUE;
    103 }
    104 
    105 #endif /* DBUS_BUILD_TESTS */
    106