/src/libluksde/libuna/libuna_byte_stream.c

Source (jump to first uncovered line)
/*
 * Byte stream functions
 *
 * Copyright (C) 2008-2024, Joachim Metz <joachim.metz@gmail.com>
 *
 * Refer to AUTHORS for acknowledgements.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 Lesser General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */

#include <common.h>
#include <types.h>

#include "libuna_byte_stream.h"
#include "libuna_definitions.h"
#include "libuna_libcerror.h"
#include "libuna_types.h"
#include "libuna_unicode_character.h"

/* Determines the size of a byte stream from an UTF-8 string
 * Returns 1 if successful or -1 on error
 */
int libuna_byte_stream_size_from_utf8(
     const libuna_utf8_character_t *utf8_string,
     size_t utf8_string_size,
     int codepage,
     size_t *byte_stream_size,
     libcerror_error_t **error )
{
  static char *function                        = "libuna_byte_stream_size_from_utf8";
  size_t utf8_string_index                     = 0;
  libuna_unicode_character_t unicode_character = 0;

  if( utf8_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-8 string.",
     function );

    return( -1 );
  }
  if( utf8_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-8 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( byte_stream_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid byte stream size.",
     function );

    return( -1 );
  }
  *byte_stream_size = 0;

  while( utf8_string_index < utf8_string_size )
  {
    /* Convert the UTF-8 character bytes into an Unicode character
     */
    if( libuna_unicode_character_copy_from_utf8(
         &unicode_character,
         utf8_string,
         utf8_string_size,
         &utf8_string_index,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
       "%s: unable to copy Unicode character from UTF-8.",
       function );

      return( -1 );
    }
    /* Determine how many byte stream character bytes are required
     */
    if( libuna_unicode_character_size_to_byte_stream(
         unicode_character,
         codepage,
         byte_stream_size,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
       "%s: unable to unable to determine size of Unicode character in byte stream.",
       function );

      return( -1 );
    }
    if( unicode_character == 0 )
    {
      break;
    }
  }
  return( 1 );
}

/* Copies a byte stream from an UTF-8 string
 * Returns 1 if successful or -1 on error
 */
int libuna_byte_stream_copy_from_utf8(
     uint8_t *byte_stream,
     size_t byte_stream_size,
     int codepage,
     const libuna_utf8_character_t *utf8_string,
     size_t utf8_string_size,
     libcerror_error_t **error )
{
  static char *function                        = "libuna_byte_stream_copy_from_utf8";
  size_t byte_stream_index                     = 0;
  size_t utf8_string_index                     = 0;
  libuna_unicode_character_t unicode_character = 0;

  if( byte_stream == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid byte stream.",
     function );

    return( -1 );
  }
  if( byte_stream_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid byte stream size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( utf8_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-8 string.",
     function );

    return( -1 );
  }
  if( utf8_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-8 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  while( utf8_string_index < utf8_string_size )
  {
    /* Convert the UTF-8 string bytes into an Unicode character
     */
    if( libuna_unicode_character_copy_from_utf8(
         &unicode_character,
         utf8_string,
         utf8_string_size,
         &utf8_string_index,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
       "%s: unable to copy Unicode character from UTF-8 string.",
       function );

      return( -1 );
    }
    /* Convert the Unicode character into a byte stream
     */
    if( libuna_unicode_character_copy_to_byte_stream(
         unicode_character,
         byte_stream,
         byte_stream_size,
         &byte_stream_index,
         codepage,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
       "%s: unable to copy Unicode character to byte stream.",
       function );

      return( -1 );
    }
    if( unicode_character == 0 )
    {
      break;
    }
  }
  return( 1 );
}

/* Determines the size of a byte stream from an UTF-16 string
 * Returns 1 if successful or -1 on error
 */
int libuna_byte_stream_size_from_utf16(
     const libuna_utf16_character_t *utf16_string,
     size_t utf16_string_size,
     int codepage,
     size_t *byte_stream_size,
     libcerror_error_t **error )
{
  static char *function                        = "libuna_byte_stream_size_from_utf16";
  size_t utf16_string_index                    = 0;
  libuna_unicode_character_t unicode_character = 0;

  if( utf16_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-16 string.",
     function );

    return( -1 );
  }
  if( utf16_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-16 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( byte_stream_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid byte stream size.",
     function );

    return( -1 );
  }
  *byte_stream_size = 0;

  while( utf16_string_index < utf16_string_size )
  {
    /* Convert the UTF-16 character bytes into an Unicode character
     */
    if( libuna_unicode_character_copy_from_utf16(
         &unicode_character,
         utf16_string,
         utf16_string_size,
         &utf16_string_index,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
       "%s: unable to copy Unicode character from UTF-16.",
       function );

      return( -1 );
    }
    /* Determine how many byte stream character bytes are required
     */
    if( libuna_unicode_character_size_to_byte_stream(
         unicode_character,
         codepage,
         byte_stream_size,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
       "%s: unable to unable to determine size of Unicode character in byte stream.",
       function );

      return( -1 );
    }
    if( unicode_character == 0 )
    {
      break;
    }
  }
  return( 1 );
}

/* Copies a byte stream from an UTF-16 string
 * Returns 1 if successful or -1 on error
 */
int libuna_byte_stream_copy_from_utf16(
     uint8_t *byte_stream,
     size_t byte_stream_size,
     int codepage,
     const libuna_utf16_character_t *utf16_string,
     size_t utf16_string_size,
     libcerror_error_t **error )
{
  static char *function                        = "libuna_byte_stream_copy_from_utf16";
  size_t byte_stream_index                     = 0;
  size_t utf16_string_index                    = 0;
  libuna_unicode_character_t unicode_character = 0;

  if( byte_stream == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid byte stream.",
     function );

    return( -1 );
  }
  if( byte_stream_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid byte stream size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( utf16_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-16 string.",
     function );

    return( -1 );
  }
  if( utf16_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-16 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  while( utf16_string_index < utf16_string_size )
  {
    /* Convert the UTF-16 string bytes into an Unicode character
     */
    if( libuna_unicode_character_copy_from_utf16(
         &unicode_character,
         utf16_string,
         utf16_string_size,
         &utf16_string_index,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
       "%s: unable to copy Unicode character from UTF-16 string.",
       function );

      return( -1 );
    }
    /* Convert the Unicode character into a byte stream
     */
    if( libuna_unicode_character_copy_to_byte_stream(
         unicode_character,
         byte_stream,
         byte_stream_size,
         &byte_stream_index,
         codepage,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
       "%s: unable to copy Unicode character to byte stream.",
       function );

      return( -1 );
    }
    if( unicode_character == 0 )
    {
      break;
    }
  }
  return( 1 );
}

/* Determines the size of a byte stream from an UTF-32 string
 * Returns 1 if successful or -1 on error
 */
int libuna_byte_stream_size_from_utf32(
     const libuna_utf32_character_t *utf32_string,
     size_t utf32_string_size,
     int codepage,
     size_t *byte_stream_size,
     libcerror_error_t **error )
{
  static char *function                        = "libuna_byte_stream_size_from_utf32";
  size_t utf32_string_index                    = 0;
  libuna_unicode_character_t unicode_character = 0;

  if( utf32_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-32 string.",
     function );

    return( -1 );
  }
  if( utf32_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-32 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( byte_stream_size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid byte stream size.",
     function );

    return( -1 );
  }
  *byte_stream_size = 0;

  while( utf32_string_index < utf32_string_size )
  {
    /* Convert the UTF-32 character bytes into an Unicode character
     */
    if( libuna_unicode_character_copy_from_utf32(
         &unicode_character,
         utf32_string,
         utf32_string_size,
         &utf32_string_index,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
       "%s: unable to copy Unicode character from UTF-32.",
       function );

      return( -1 );
    }
    /* Determine how many byte stream character bytes are required
     */
    if( libuna_unicode_character_size_to_byte_stream(
         unicode_character,
         codepage,
         byte_stream_size,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
       "%s: unable to unable to determine size of Unicode character in byte stream.",
       function );

      return( -1 );
    }
    if( unicode_character == 0 )
    {
      break;
    }
  }
  return( 1 );
}

/* Copies a byte stream from an UTF-32 string
 * Returns 1 if successful or -1 on error
 */
int libuna_byte_stream_copy_from_utf32(
     uint8_t *byte_stream,
     size_t byte_stream_size,
     int codepage,
     const libuna_utf32_character_t *utf32_string,
     size_t utf32_string_size,
     libcerror_error_t **error )
{
  static char *function                        = "libuna_byte_stream_copy_from_utf32";
  size_t byte_stream_index                     = 0;
  size_t utf32_string_index                    = 0;
  libuna_unicode_character_t unicode_character = 0;

  if( byte_stream == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid byte stream.",
     function );

    return( -1 );
  }
  if( byte_stream_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid byte stream size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( utf32_string == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid UTF-32 string.",
     function );

    return( -1 );
  }
  if( utf32_string_size > (size_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid UTF-32 string size value exceeds maximum.",
     function );

    return( -1 );
  }
  while( utf32_string_index < utf32_string_size )
  {
    /* Convert the UTF-32 string bytes into an Unicode character
     */
    if( libuna_unicode_character_copy_from_utf32(
         &unicode_character,
         utf32_string,
         utf32_string_size,
         &utf32_string_index,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
       "%s: unable to copy Unicode character from UTF-32 string.",
       function );

      return( -1 );
    }
    /* Convert the Unicode character into a byte stream
     */
    if( libuna_unicode_character_copy_to_byte_stream(
         unicode_character,
         byte_stream,
         byte_stream_size,
         &byte_stream_index,
         codepage,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_CONVERSION,
       LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
       "%s: unable to copy Unicode character to byte stream.",
       function );

      return( -1 );
    }
    if( unicode_character == 0 )
    {
      break;
    }
  }
  return( 1 );
}


Coverage Report

Created: 2025-06-13 07:22

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Byte stream functions
3		*
4		* Copyright (C) 2008-2024, Joachim Metz <joachim.metz@gmail.com>
5		*
6		* Refer to AUTHORS for acknowledgements.
7		*
8		* This program is free software: you can redistribute it and/or modify
9		* it under the terms of the GNU Lesser General Public License as published by
10		* the Free Software Foundation, either version 3 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 Lesser General Public License
19		* along with this program. If not, see <https://www.gnu.org/licenses/>.
20		*/
21
22		#include <common.h>
23		#include <types.h>
24
25		#include "libuna_byte_stream.h"
26		#include "libuna_definitions.h"
27		#include "libuna_libcerror.h"
28		#include "libuna_types.h"
29		#include "libuna_unicode_character.h"
30
31		/* Determines the size of a byte stream from an UTF-8 string
32		* Returns 1 if successful or -1 on error
33		*/
34		int libuna_byte_stream_size_from_utf8(
35		const libuna_utf8_character_t *utf8_string,
36		size_t utf8_string_size,
37		int codepage,
38		size_t *byte_stream_size,
39		libcerror_error_t **error )
40	0	{
41	0	static char *function = "libuna_byte_stream_size_from_utf8";
42	0	size_t utf8_string_index = 0;
43	0	libuna_unicode_character_t unicode_character = 0;
44
45	0	if( utf8_string == NULL )
46	0	{
47	0	libcerror_error_set(
48	0	error,
49	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
50	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
51	0	"%s: invalid UTF-8 string.",
52	0	function );
53
54	0	return( -1 );
55	0	}
56	0	if( utf8_string_size > (size_t) SSIZE_MAX )
57	0	{
58	0	libcerror_error_set(
59	0	error,
60	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
61	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
62	0	"%s: invalid UTF-8 string size value exceeds maximum.",
63	0	function );
64
65	0	return( -1 );
66	0	}
67	0	if( byte_stream_size == NULL )
68	0	{
69	0	libcerror_error_set(
70	0	error,
71	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
72	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
73	0	"%s: invalid byte stream size.",
74	0	function );
75
76	0	return( -1 );
77	0	}
78	0	*byte_stream_size = 0;
79
80	0	while( utf8_string_index < utf8_string_size )
81	0	{
82		/* Convert the UTF-8 character bytes into an Unicode character
83		*/
84	0	if( libuna_unicode_character_copy_from_utf8(
85	0	&unicode_character,
86	0	utf8_string,
87	0	utf8_string_size,
88	0	&utf8_string_index,
89	0	error ) != 1 )
90	0	{
91	0	libcerror_error_set(
92	0	error,
93	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
94	0	LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
95	0	"%s: unable to copy Unicode character from UTF-8.",
96	0	function );
97
98	0	return( -1 );
99	0	}
100		/* Determine how many byte stream character bytes are required
101		*/
102	0	if( libuna_unicode_character_size_to_byte_stream(
103	0	unicode_character,
104	0	codepage,
105	0	byte_stream_size,
106	0	error ) != 1 )
107	0	{
108	0	libcerror_error_set(
109	0	error,
110	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
111	0	LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
112	0	"%s: unable to unable to determine size of Unicode character in byte stream.",
113	0	function );
114
115	0	return( -1 );
116	0	}
117	0	if( unicode_character == 0 )
118	0	{
119	0	break;
120	0	}
121	0	}
122	0	return( 1 );
123	0	}
124
125		/* Copies a byte stream from an UTF-8 string
126		* Returns 1 if successful or -1 on error
127		*/
128		int libuna_byte_stream_copy_from_utf8(
129		uint8_t *byte_stream,
130		size_t byte_stream_size,
131		int codepage,
132		const libuna_utf8_character_t *utf8_string,
133		size_t utf8_string_size,
134		libcerror_error_t **error )
135	0	{
136	0	static char *function = "libuna_byte_stream_copy_from_utf8";
137	0	size_t byte_stream_index = 0;
138	0	size_t utf8_string_index = 0;
139	0	libuna_unicode_character_t unicode_character = 0;
140
141	0	if( byte_stream == NULL )
142	0	{
143	0	libcerror_error_set(
144	0	error,
145	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
146	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
147	0	"%s: invalid byte stream.",
148	0	function );
149
150	0	return( -1 );
151	0	}
152	0	if( byte_stream_size > (size_t) SSIZE_MAX )
153	0	{
154	0	libcerror_error_set(
155	0	error,
156	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
157	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
158	0	"%s: invalid byte stream size value exceeds maximum.",
159	0	function );
160
161	0	return( -1 );
162	0	}
163	0	if( utf8_string == NULL )
164	0	{
165	0	libcerror_error_set(
166	0	error,
167	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
168	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
169	0	"%s: invalid UTF-8 string.",
170	0	function );
171
172	0	return( -1 );
173	0	}
174	0	if( utf8_string_size > (size_t) SSIZE_MAX )
175	0	{
176	0	libcerror_error_set(
177	0	error,
178	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
179	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
180	0	"%s: invalid UTF-8 string size value exceeds maximum.",
181	0	function );
182
183	0	return( -1 );
184	0	}
185	0	while( utf8_string_index < utf8_string_size )
186	0	{
187		/* Convert the UTF-8 string bytes into an Unicode character
188		*/
189	0	if( libuna_unicode_character_copy_from_utf8(
190	0	&unicode_character,
191	0	utf8_string,
192	0	utf8_string_size,
193	0	&utf8_string_index,
194	0	error ) != 1 )
195	0	{
196	0	libcerror_error_set(
197	0	error,
198	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
199	0	LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
200	0	"%s: unable to copy Unicode character from UTF-8 string.",
201	0	function );
202
203	0	return( -1 );
204	0	}
205		/* Convert the Unicode character into a byte stream
206		*/
207	0	if( libuna_unicode_character_copy_to_byte_stream(
208	0	unicode_character,
209	0	byte_stream,
210	0	byte_stream_size,
211	0	&byte_stream_index,
212	0	codepage,
213	0	error ) != 1 )
214	0	{
215	0	libcerror_error_set(
216	0	error,
217	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
218	0	LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
219	0	"%s: unable to copy Unicode character to byte stream.",
220	0	function );
221
222	0	return( -1 );
223	0	}
224	0	if( unicode_character == 0 )
225	0	{
226	0	break;
227	0	}
228	0	}
229	0	return( 1 );
230	0	}
231
232		/* Determines the size of a byte stream from an UTF-16 string
233		* Returns 1 if successful or -1 on error
234		*/
235		int libuna_byte_stream_size_from_utf16(
236		const libuna_utf16_character_t *utf16_string,
237		size_t utf16_string_size,
238		int codepage,
239		size_t *byte_stream_size,
240		libcerror_error_t **error )
241	0	{
242	0	static char *function = "libuna_byte_stream_size_from_utf16";
243	0	size_t utf16_string_index = 0;
244	0	libuna_unicode_character_t unicode_character = 0;
245
246	0	if( utf16_string == NULL )
247	0	{
248	0	libcerror_error_set(
249	0	error,
250	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
251	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
252	0	"%s: invalid UTF-16 string.",
253	0	function );
254
255	0	return( -1 );
256	0	}
257	0	if( utf16_string_size > (size_t) SSIZE_MAX )
258	0	{
259	0	libcerror_error_set(
260	0	error,
261	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
262	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
263	0	"%s: invalid UTF-16 string size value exceeds maximum.",
264	0	function );
265
266	0	return( -1 );
267	0	}
268	0	if( byte_stream_size == NULL )
269	0	{
270	0	libcerror_error_set(
271	0	error,
272	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
273	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
274	0	"%s: invalid byte stream size.",
275	0	function );
276
277	0	return( -1 );
278	0	}
279	0	*byte_stream_size = 0;
280
281	0	while( utf16_string_index < utf16_string_size )
282	0	{
283		/* Convert the UTF-16 character bytes into an Unicode character
284		*/
285	0	if( libuna_unicode_character_copy_from_utf16(
286	0	&unicode_character,
287	0	utf16_string,
288	0	utf16_string_size,
289	0	&utf16_string_index,
290	0	error ) != 1 )
291	0	{
292	0	libcerror_error_set(
293	0	error,
294	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
295	0	LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
296	0	"%s: unable to copy Unicode character from UTF-16.",
297	0	function );
298
299	0	return( -1 );
300	0	}
301		/* Determine how many byte stream character bytes are required
302		*/
303	0	if( libuna_unicode_character_size_to_byte_stream(
304	0	unicode_character,
305	0	codepage,
306	0	byte_stream_size,
307	0	error ) != 1 )
308	0	{
309	0	libcerror_error_set(
310	0	error,
311	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
312	0	LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
313	0	"%s: unable to unable to determine size of Unicode character in byte stream.",
314	0	function );
315
316	0	return( -1 );
317	0	}
318	0	if( unicode_character == 0 )
319	0	{
320	0	break;
321	0	}
322	0	}
323	0	return( 1 );
324	0	}
325
326		/* Copies a byte stream from an UTF-16 string
327		* Returns 1 if successful or -1 on error
328		*/
329		int libuna_byte_stream_copy_from_utf16(
330		uint8_t *byte_stream,
331		size_t byte_stream_size,
332		int codepage,
333		const libuna_utf16_character_t *utf16_string,
334		size_t utf16_string_size,
335		libcerror_error_t **error )
336	0	{
337	0	static char *function = "libuna_byte_stream_copy_from_utf16";
338	0	size_t byte_stream_index = 0;
339	0	size_t utf16_string_index = 0;
340	0	libuna_unicode_character_t unicode_character = 0;
341
342	0	if( byte_stream == NULL )
343	0	{
344	0	libcerror_error_set(
345	0	error,
346	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
347	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
348	0	"%s: invalid byte stream.",
349	0	function );
350
351	0	return( -1 );
352	0	}
353	0	if( byte_stream_size > (size_t) SSIZE_MAX )
354	0	{
355	0	libcerror_error_set(
356	0	error,
357	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
358	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
359	0	"%s: invalid byte stream size value exceeds maximum.",
360	0	function );
361
362	0	return( -1 );
363	0	}
364	0	if( utf16_string == NULL )
365	0	{
366	0	libcerror_error_set(
367	0	error,
368	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
369	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
370	0	"%s: invalid UTF-16 string.",
371	0	function );
372
373	0	return( -1 );
374	0	}
375	0	if( utf16_string_size > (size_t) SSIZE_MAX )
376	0	{
377	0	libcerror_error_set(
378	0	error,
379	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
380	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
381	0	"%s: invalid UTF-16 string size value exceeds maximum.",
382	0	function );
383
384	0	return( -1 );
385	0	}
386	0	while( utf16_string_index < utf16_string_size )
387	0	{
388		/* Convert the UTF-16 string bytes into an Unicode character
389		*/
390	0	if( libuna_unicode_character_copy_from_utf16(
391	0	&unicode_character,
392	0	utf16_string,
393	0	utf16_string_size,
394	0	&utf16_string_index,
395	0	error ) != 1 )
396	0	{
397	0	libcerror_error_set(
398	0	error,
399	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
400	0	LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
401	0	"%s: unable to copy Unicode character from UTF-16 string.",
402	0	function );
403
404	0	return( -1 );
405	0	}
406		/* Convert the Unicode character into a byte stream
407		*/
408	0	if( libuna_unicode_character_copy_to_byte_stream(
409	0	unicode_character,
410	0	byte_stream,
411	0	byte_stream_size,
412	0	&byte_stream_index,
413	0	codepage,
414	0	error ) != 1 )
415	0	{
416	0	libcerror_error_set(
417	0	error,
418	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
419	0	LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
420	0	"%s: unable to copy Unicode character to byte stream.",
421	0	function );
422
423	0	return( -1 );
424	0	}
425	0	if( unicode_character == 0 )
426	0	{
427	0	break;
428	0	}
429	0	}
430	0	return( 1 );
431	0	}
432
433		/* Determines the size of a byte stream from an UTF-32 string
434		* Returns 1 if successful or -1 on error
435		*/
436		int libuna_byte_stream_size_from_utf32(
437		const libuna_utf32_character_t *utf32_string,
438		size_t utf32_string_size,
439		int codepage,
440		size_t *byte_stream_size,
441		libcerror_error_t **error )
442	0	{
443	0	static char *function = "libuna_byte_stream_size_from_utf32";
444	0	size_t utf32_string_index = 0;
445	0	libuna_unicode_character_t unicode_character = 0;
446
447	0	if( utf32_string == NULL )
448	0	{
449	0	libcerror_error_set(
450	0	error,
451	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
452	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
453	0	"%s: invalid UTF-32 string.",
454	0	function );
455
456	0	return( -1 );
457	0	}
458	0	if( utf32_string_size > (size_t) SSIZE_MAX )
459	0	{
460	0	libcerror_error_set(
461	0	error,
462	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
463	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
464	0	"%s: invalid UTF-32 string size value exceeds maximum.",
465	0	function );
466
467	0	return( -1 );
468	0	}
469	0	if( byte_stream_size == NULL )
470	0	{
471	0	libcerror_error_set(
472	0	error,
473	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
474	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
475	0	"%s: invalid byte stream size.",
476	0	function );
477
478	0	return( -1 );
479	0	}
480	0	*byte_stream_size = 0;
481
482	0	while( utf32_string_index < utf32_string_size )
483	0	{
484		/* Convert the UTF-32 character bytes into an Unicode character
485		*/
486	0	if( libuna_unicode_character_copy_from_utf32(
487	0	&unicode_character,
488	0	utf32_string,
489	0	utf32_string_size,
490	0	&utf32_string_index,
491	0	error ) != 1 )
492	0	{
493	0	libcerror_error_set(
494	0	error,
495	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
496	0	LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
497	0	"%s: unable to copy Unicode character from UTF-32.",
498	0	function );
499
500	0	return( -1 );
501	0	}
502		/* Determine how many byte stream character bytes are required
503		*/
504	0	if( libuna_unicode_character_size_to_byte_stream(
505	0	unicode_character,
506	0	codepage,
507	0	byte_stream_size,
508	0	error ) != 1 )
509	0	{
510	0	libcerror_error_set(
511	0	error,
512	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
513	0	LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
514	0	"%s: unable to unable to determine size of Unicode character in byte stream.",
515	0	function );
516
517	0	return( -1 );
518	0	}
519	0	if( unicode_character == 0 )
520	0	{
521	0	break;
522	0	}
523	0	}
524	0	return( 1 );
525	0	}
526
527		/* Copies a byte stream from an UTF-32 string
528		* Returns 1 if successful or -1 on error
529		*/
530		int libuna_byte_stream_copy_from_utf32(
531		uint8_t *byte_stream,
532		size_t byte_stream_size,
533		int codepage,
534		const libuna_utf32_character_t *utf32_string,
535		size_t utf32_string_size,
536		libcerror_error_t **error )
537	0	{
538	0	static char *function = "libuna_byte_stream_copy_from_utf32";
539	0	size_t byte_stream_index = 0;
540	0	size_t utf32_string_index = 0;
541	0	libuna_unicode_character_t unicode_character = 0;
542
543	0	if( byte_stream == NULL )
544	0	{
545	0	libcerror_error_set(
546	0	error,
547	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
548	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
549	0	"%s: invalid byte stream.",
550	0	function );
551
552	0	return( -1 );
553	0	}
554	0	if( byte_stream_size > (size_t) SSIZE_MAX )
555	0	{
556	0	libcerror_error_set(
557	0	error,
558	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
559	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
560	0	"%s: invalid byte stream size value exceeds maximum.",
561	0	function );
562
563	0	return( -1 );
564	0	}
565	0	if( utf32_string == NULL )
566	0	{
567	0	libcerror_error_set(
568	0	error,
569	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
570	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
571	0	"%s: invalid UTF-32 string.",
572	0	function );
573
574	0	return( -1 );
575	0	}
576	0	if( utf32_string_size > (size_t) SSIZE_MAX )
577	0	{
578	0	libcerror_error_set(
579	0	error,
580	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
581	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
582	0	"%s: invalid UTF-32 string size value exceeds maximum.",
583	0	function );
584
585	0	return( -1 );
586	0	}
587	0	while( utf32_string_index < utf32_string_size )
588	0	{
589		/* Convert the UTF-32 string bytes into an Unicode character
590		*/
591	0	if( libuna_unicode_character_copy_from_utf32(
592	0	&unicode_character,
593	0	utf32_string,
594	0	utf32_string_size,
595	0	&utf32_string_index,
596	0	error ) != 1 )
597	0	{
598	0	libcerror_error_set(
599	0	error,
600	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
601	0	LIBCERROR_CONVERSION_ERROR_INPUT_FAILED,
602	0	"%s: unable to copy Unicode character from UTF-32 string.",
603	0	function );
604
605	0	return( -1 );
606	0	}
607		/* Convert the Unicode character into a byte stream
608		*/
609	0	if( libuna_unicode_character_copy_to_byte_stream(
610	0	unicode_character,
611	0	byte_stream,
612	0	byte_stream_size,
613	0	&byte_stream_index,
614	0	codepage,
615	0	error ) != 1 )
616	0	{
617	0	libcerror_error_set(
618	0	error,
619	0	LIBCERROR_ERROR_DOMAIN_CONVERSION,
620	0	LIBCERROR_CONVERSION_ERROR_OUTPUT_FAILED,
621	0	"%s: unable to copy Unicode character to byte stream.",
622	0	function );
623
624	0	return( -1 );
625	0	}
626	0	if( unicode_character == 0 )
627	0	{
628	0	break;
629	0	}
630	0	}
631	0	return( 1 );
632	0	}
633