/*
 * System string functions
 *
 * Copyright (C) 2008-2021, 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 <memory.h>
#include <narrow_string.h>
#include <system_string.h>
#include <types.h>
#include <wide_string.h>

#include "libcfile_libcerror.h"
#include "libcfile_libclocale.h"
#include "libcfile_libuna.h"
#include "libcfile_system_string.h"

#if defined( HAVE_WIDE_SYSTEM_CHARACTER ) && SIZEOF_WCHAR_T != 2 && SIZEOF_WCHAR_T != 4
#error Unsupported size of wchar_t
#endif

/* Determines the size of a narrow string from a system string
 * Returns 1 if successful or -1 on error
 */
int libcfile_system_string_size_to_narrow_string(
     const system_character_t *system_string,
     size_t system_string_size,
     size_t *narrow_string_size,
     libcerror_error_t **error )
{
	static char *function = "libcfile_system_string_size_to_narrow_string";

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	int result            = 0;
#endif

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	if( libclocale_codepage == 0 )
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf8_string_size_from_utf32(
		          (libuna_utf32_character_t *) system_string,
		          system_string_size,
		          narrow_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf8_string_size_from_utf16(
		          (libuna_utf16_character_t *) system_string,
		          system_string_size,
		          narrow_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	else
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_byte_stream_size_from_utf32(
		          (libuna_utf32_character_t *) system_string,
		          system_string_size,
		          libclocale_codepage,
		          narrow_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_byte_stream_size_from_utf16(
		          (libuna_utf16_character_t *) system_string,
		          system_string_size,
		          libclocale_codepage,
		          narrow_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	if( result != 1 )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_CONVERSION,
		 LIBCERROR_CONVERSION_ERROR_GENERIC,
		 "%s: unable to determine narrow string size.",
		 function );

		return( -1 );
	}
#else
	if( system_string == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
		 "%s: invalid system string.",
		 function );

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

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

		return( -1 );
	}
	*narrow_string_size = system_string_size;

#endif /* defined( HAVE_WIDE_SYSTEM_CHARACTER ) */

	return( 1 );
}

/* Copies a system string to a narrow string
 * Returns 1 if successful or -1 on error
 */
int libcfile_system_string_copy_to_narrow_string(
     const system_character_t *system_string,
     size_t system_string_size,
     char *narrow_string,
     size_t narrow_string_size,
     libcerror_error_t **error )
{
	static char *function = "libcfile_system_string_copy_to_narrow_string";

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	int result            = 0;
#endif

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	if( libclocale_codepage == 0 )
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf8_string_copy_from_utf32(
		          (libuna_utf8_character_t *) narrow_string,
		          narrow_string_size,
		          (libuna_utf32_character_t *) system_string,
		          system_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf8_string_copy_from_utf16(
		          (libuna_utf8_character_t *) narrow_string,
		          narrow_string_size,
		          (libuna_utf16_character_t *) system_string,
		          system_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	else
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_byte_stream_copy_from_utf32(
		          (uint8_t *) narrow_string,
		          narrow_string_size,
		          libclocale_codepage,
		          (libuna_utf32_character_t *) system_string,
		          system_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_byte_stream_copy_from_utf16(
		          (uint8_t *) narrow_string,
		          narrow_string_size,
		          libclocale_codepage,
		          (libuna_utf16_character_t *) system_string,
		          system_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	if( result != 1 )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_CONVERSION,
		 LIBCERROR_CONVERSION_ERROR_GENERIC,
		 "%s: unable to set narrow string.",
		 function );

		return( -1 );
	}
#else
	if( system_string == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
		 "%s: invalid system string.",
		 function );

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

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

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

		return( -1 );
	}
	if( narrow_string_size < system_string_size )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
		 "%s: invalid narrow string size value too small.",
		 function );

		return( -1 );
	}
	if( system_string_copy(
	     narrow_string,
	     system_string,
	     system_string_size ) == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_MEMORY,
		 LIBCERROR_MEMORY_ERROR_COPY_FAILED,
		 "%s: unable to set narrow string.",
		 function );

		return( -1 );
	}
	narrow_string[ system_string_size - 1 ] = 0;

#endif /* defined( HAVE_WIDE_SYSTEM_CHARACTER ) */

	return( 1 );
}

/* Determines the size of a system string from a narrow string
 * Returns 1 if successful or -1 on error
 */
int libcfile_system_string_size_from_narrow_string(
     const char *narrow_string,
     size_t narrow_string_size,
     size_t *system_string_size,
     libcerror_error_t **error )
{
	static char *function = "libcfile_system_string_size_from_narrow_string";

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	int result            = 0;
#endif

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	if( libclocale_codepage == 0 )
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf32_string_size_from_utf8(
		          (libuna_utf8_character_t *) narrow_string,
		          narrow_string_size,
		          system_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf16_string_size_from_utf8(
		          (libuna_utf8_character_t *) narrow_string,
		          narrow_string_size,
		          system_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	else
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf32_string_size_from_byte_stream(
		          (uint8_t *) narrow_string,
		          narrow_string_size,
		          libclocale_codepage,
		          system_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf16_string_size_from_byte_stream(
		          (uint8_t *) narrow_string,
		          narrow_string_size,
		          libclocale_codepage,
		          system_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	if( result != 1 )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_CONVERSION,
		 LIBCERROR_CONVERSION_ERROR_GENERIC,
		 "%s: unable to determine system string size.",
		 function );

		return( -1 );
	}
#else
	if( narrow_string == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
		 "%s: invalid narrow string.",
		 function );

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

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

		return( -1 );
	}
	*system_string_size = narrow_string_size;

#endif /* defined( HAVE_WIDE_SYSTEM_CHARACTER ) */

	return( 1 );
}

/* Copies a system string from a narrow string
 * Returns 1 if successful or -1 on error
 */
int libcfile_system_string_copy_from_narrow_string(
     system_character_t *system_string,
     size_t system_string_size,
     const char *narrow_string,
     size_t narrow_string_size,
     libcerror_error_t **error )
{
	static char *function = "libcfile_system_string_copy_from_narrow_string";

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	int result            = 0;
#endif

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	if( libclocale_codepage == 0 )
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf32_string_copy_from_utf8(
		          (libuna_utf32_character_t *) system_string,
		          system_string_size,
		          (libuna_utf8_character_t *) narrow_string,
		          narrow_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf16_string_copy_from_utf8(
		          (libuna_utf16_character_t *) system_string,
		          system_string_size,
		          (libuna_utf8_character_t *) narrow_string,
		          narrow_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	else
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf32_string_copy_from_byte_stream(
		          (libuna_utf32_character_t *) system_string,
		          system_string_size,
		          (uint8_t *) narrow_string,
		          narrow_string_size,
		          libclocale_codepage,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf16_string_copy_from_byte_stream(
		          (libuna_utf16_character_t *) system_string,
		          system_string_size,
		          (uint8_t *) narrow_string,
		          narrow_string_size,
		          libclocale_codepage,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	if( result != 1 )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_CONVERSION,
		 LIBCERROR_CONVERSION_ERROR_GENERIC,
		 "%s: unable to set system string.",
		 function );

		return( -1 );
	}
#else
	if( system_string == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
		 "%s: invalid system string.",
		 function );

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

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

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

		return( -1 );
	}
	if( system_string_size < narrow_string_size )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
		 "%s: invalid system string size value too small.",
		 function );

		return( -1 );
	}
	if( system_string_copy(
	     system_string,
	     narrow_string,
	     narrow_string_size ) == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_MEMORY,
		 LIBCERROR_MEMORY_ERROR_COPY_FAILED,
		 "%s: unable to set narrow string.",
		 function );

		return( -1 );
	}
	system_string[ narrow_string_size - 1 ] = 0;

#endif /* defined( HAVE_WIDE_SYSTEM_CHARACTER ) */

	return( 1 );
}

#if defined( HAVE_WIDE_CHARACTER_TYPE )

/* Determines the size of a wide string from a system string
 * Returns 1 if successful or -1 on error
 */
int libcfile_system_string_size_to_wide_string(
     const system_character_t *system_string,
     size_t system_string_size,
     size_t *wide_string_size,
     libcerror_error_t **error )
{
	static char *function = "libcfile_system_string_size_to_wide_string";

#if !defined( HAVE_WIDE_SYSTEM_CHARACTER )
	int result            = 0;
#endif

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	if( system_string == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
		 "%s: invalid system string.",
		 function );

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

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

		return( -1 );
	}
	*wide_string_size = system_string_size;
#else
	if( libclocale_codepage == 0 )
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf32_string_size_from_utf8(
		          (libuna_utf8_character_t *) system_string,
		          system_string_size,
		          wide_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf16_string_size_from_utf8(
		          (libuna_utf8_character_t *) system_string,
		          system_string_size,
		          wide_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	else
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf32_string_size_from_byte_stream(
		          (uint8_t *) system_string,
		          system_string_size,
		          libclocale_codepage,
		          wide_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf16_string_size_from_byte_stream(
		          (uint8_t *) system_string,
		          system_string_size,
		          libclocale_codepage,
		          wide_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	if( result != 1 )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_CONVERSION,
		 LIBCERROR_CONVERSION_ERROR_GENERIC,
		 "%s: unable to determine wide string size.",
		 function );

		return( -1 );
	}
#endif /* defined( HAVE_WIDE_SYSTEM_CHARACTER ) */

	return( 1 );
}

/* Copies a system string to a wide string
 * Returns 1 if successful or -1 on error
 */
int libcfile_system_string_copy_to_wide_string(
     const system_character_t *system_string,
     size_t system_string_size,
     wchar_t *wide_string,
     size_t wide_string_size,
     libcerror_error_t **error )
{
	static char *function = "libcfile_system_string_copy_to_wide_string";

#if !defined( HAVE_WIDE_SYSTEM_CHARACTER )
	int result            = 0;
#endif

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	if( system_string == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
		 "%s: invalid system string.",
		 function );

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

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

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

		return( -1 );
	}
	if( wide_string_size < system_string_size )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
		 "%s: invalid wide string size value too small.",
		 function );

		return( -1 );
	}
	if( system_string_copy(
	     wide_string,
	     system_string,
	     system_string_size ) == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_MEMORY,
		 LIBCERROR_MEMORY_ERROR_COPY_FAILED,
		 "%s: unable to set wide string.",
		 function );

		return( -1 );
	}
	wide_string[ system_string_size - 1 ] = 0;
#else
	if( libclocale_codepage == 0 )
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf32_string_copy_from_utf8(
		          (libuna_utf32_character_t *) wide_string,
		          wide_string_size,
		          (libuna_utf8_character_t *) system_string,
		          system_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf16_string_copy_from_utf8(
		          (libuna_utf16_character_t *) wide_string,
		          wide_string_size,
		          (libuna_utf8_character_t *) system_string,
		          system_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	else
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf32_string_copy_from_byte_stream(
		          (libuna_utf32_character_t *) wide_string,
		          wide_string_size,
		          (uint8_t *) system_string,
		          system_string_size,
		          libclocale_codepage,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf16_string_copy_from_byte_stream(
		          (libuna_utf16_character_t *) wide_string,
		          wide_string_size,
		          (uint8_t *) system_string,
		          system_string_size,
		          libclocale_codepage,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	if( result != 1 )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_CONVERSION,
		 LIBCERROR_CONVERSION_ERROR_GENERIC,
		 "%s: unable to set wide string.",
		 function );

		return( -1 );
	}
#endif /* defined( HAVE_WIDE_SYSTEM_CHARACTER ) */

	return( 1 );
}

/* Determines the size of a system string from a wide string
 * Returns 1 if successful or -1 on error
 */
int libcfile_system_string_size_from_wide_string(
     const wchar_t *wide_string,
     size_t wide_string_size,
     size_t *system_string_size,
     libcerror_error_t **error )
{
	static char *function = "libcfile_system_string_size_from_wide_string";

#if !defined( HAVE_WIDE_SYSTEM_CHARACTER )
	int result            = 0;
#endif

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	if( wide_string == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
		 "%s: invalid wide string.",
		 function );

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

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

		return( -1 );
	}
	*system_string_size = wide_string_size;
#else
	if( libclocale_codepage == 0 )
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf8_string_size_from_utf32(
		          (libuna_utf32_character_t *) wide_string,
		          wide_string_size,
		          system_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf8_string_size_from_utf16(
		          (libuna_utf16_character_t *) wide_string,
		          wide_string_size,
		          system_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	else
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_byte_stream_size_from_utf32(
		          (libuna_utf32_character_t *) wide_string,
		          wide_string_size,
		          libclocale_codepage,
		          system_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_byte_stream_size_from_utf16(
		          (libuna_utf16_character_t *) wide_string,
		          wide_string_size,
		          libclocale_codepage,
		          system_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	if( result != 1 )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_CONVERSION,
		 LIBCERROR_CONVERSION_ERROR_GENERIC,
		 "%s: unable to determine wide string size.",
		 function );

		return( -1 );
	}
#endif /* defined( HAVE_WIDE_SYSTEM_CHARACTER ) */

	return( 1 );
}

/* Copies a system string from a wide string
 * Returns 1 if successful or -1 on error
 */
int libcfile_system_string_copy_from_wide_string(
     system_character_t *system_string,
     size_t system_string_size,
     const wchar_t *wide_string,
     size_t wide_string_size,
     libcerror_error_t **error )
{
	static char *function = "libcfile_system_string_copy_from_wide_string";

#if !defined( HAVE_WIDE_SYSTEM_CHARACTER )
	int result            = 0;
#endif

#if defined( HAVE_WIDE_SYSTEM_CHARACTER )
	if( system_string == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
		 "%s: invalid system string.",
		 function );

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

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

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

		return( -1 );
	}
	if( system_string_size < wide_string_size )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
		 LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
		 "%s: invalid system string size value too small.",
		 function );

		return( -1 );
	}
	if( system_string_copy(
	     system_string,
	     wide_string,
	     wide_string_size ) == NULL )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_MEMORY,
		 LIBCERROR_MEMORY_ERROR_COPY_FAILED,
		 "%s: unable to set wide string.",
		 function );

		return( -1 );
	}
	system_string[ wide_string_size - 1 ] = 0;
#else
	if( libclocale_codepage == 0 )
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_utf8_string_copy_from_utf32(
		          (libuna_utf8_character_t *) system_string,
		          system_string_size,
		          (libuna_utf32_character_t *) wide_string,
		          wide_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_utf8_string_copy_from_utf16(
		          (libuna_utf8_character_t *) system_string,
		          system_string_size,
		          (libuna_utf16_character_t *) wide_string,
		          wide_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	else
	{
#if SIZEOF_WCHAR_T == 4
		result = libuna_byte_stream_copy_from_utf32(
		          (uint8_t *) system_string,
		          system_string_size,
		          libclocale_codepage,
		          (libuna_utf32_character_t *) wide_string,
		          wide_string_size,
		          error );
#elif SIZEOF_WCHAR_T == 2
		result = libuna_byte_stream_copy_from_utf16(
		          (uint8_t *) system_string,
		          system_string_size,
		          libclocale_codepage,
		          (libuna_utf16_character_t *) wide_string,
		          wide_string_size,
		          error );
#endif /* SIZEOF_WCHAR_T */
	}
	if( result != 1 )
	{
		libcerror_error_set(
		 error,
		 LIBCERROR_ERROR_DOMAIN_CONVERSION,
		 LIBCERROR_CONVERSION_ERROR_GENERIC,
		 "%s: unable to set wide string.",
		 function );

		return( -1 );
	}
#endif /* defined( HAVE_WIDE_SYSTEM_CHARACTER ) */

	return( 1 );
}

#endif /* defined( HAVE_WIDE_CHARACTER_TYPE ) */