D-Bus: dbus-marshal-byteswap-util.c Source File

D-Bus 1.12.2

dbus-marshal-byteswap-util.c
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_ENABLE_EMBEDDED_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");
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_ENABLE_EMBEDDED_TESTS */
_dbus_string_init
dbus_bool_t _dbus_string_init(DBusString *str)
Initializes a string.
Definition: dbus-string.c:175
_dbus_string_copy
dbus_bool_t _dbus_string_copy(const DBusString *source, int start, DBusString *dest, int insert_at)
Like _dbus_string_move(), but does not delete the section of the source string that&#39;s copied to the d...
Definition: dbus-string.c:1283
DBusString
Definition: dbus-string.h:42
dbus_bool_t
dbus_uint32_t dbus_bool_t
A boolean, valid values are TRUE and FALSE.
Definition: dbus-types.h:35
_dbus_warn
void _dbus_warn(const char *format,...)
Prints a warning message to stderr.
Definition: dbus-internals.c:230
DBUS_BIG_ENDIAN
#define DBUS_BIG_ENDIAN
Code marking MSB-first byte order in the wire protocol.
Definition: dbus-protocol.h:54
_dbus_string_free
void _dbus_string_free(DBusString *str)
Frees a string created by _dbus_string_init().
Definition: dbus-string.c:259
DBusTypeReader
The type reader is an iterator for reading values from a block of values.
Definition: dbus-marshal-recursive.h:39
TRUE
#define TRUE
Expands to "1".
_dbus_assert_not_reached
#define _dbus_assert_not_reached(explanation)
Aborts with an error message if called.
Definition: dbus-internals.h:163
_dbus_type_reader_init
void _dbus_type_reader_init(DBusTypeReader *reader, int byte_order, const DBusString *type_str, int type_pos, const DBusString *value_str, int value_pos)
Initializes a type reader.
Definition: dbus-marshal-recursive.c:733
_dbus_string_set_length
dbus_bool_t _dbus_string_set_length(DBusString *str, int length)
Sets the length of a string.
Definition: dbus-string.c:802
_dbus_verbose_bytes_of_string
DBUS_PRIVATE_EXPORT void _dbus_verbose_bytes_of_string(const DBusString *str, int start, int len)
Dump the given part of the string to verbose log.
Definition: dbus-marshal-basic.c:1362
_dbus_marshal_byteswap
void _dbus_marshal_byteswap(const DBusString *signature, int signature_start, int old_byte_order, int new_byte_order, DBusString *value_str, int value_pos)
Byteswaps the marshaled data in the given value_str.
Definition: dbus-marshal-byteswap.c:222
DBUS_LITTLE_ENDIAN
#define DBUS_LITTLE_ENDIAN
Code marking LSB-first byte order in the wire protocol.
Definition: dbus-protocol.h:53