libfvalue_split_string.c
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libfvalue_split_string.c
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	/*
	* Split string functions
	*
	* Copyright (c) 2010-2012, Joachim Metz <jbmetz@users.sourceforge.net>
	*
	* Refer to AUTHORS for acknowledgements.
	*
	* This software 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 software 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 software. If not, see <http://www.gnu.org/licenses/>.
	*/

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

	#include <libcstring.h>
	#include <liberror.h>

	#include "libfvalue_split_string.h"
	#include "libfvalue_types.h"

	/* Initializes the split UTF-8 string
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf8_string_initialize(
	libfvalue_split_utf8_string_t **split_string,
	const uint8_t *utf8_string,
	size_t utf8_string_size,
	int number_of_segments,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf8_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf8_string_initialize";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	if( number_of_segments < 0 )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_LESS_THAN_ZERO,
	"%s: invalid number of segments less than zero.",
	function );

	return( -1 );
	}
	if( *split_string == NULL )
	{
	internal_split_string = memory_allocate_structure(
	libfvalue_internal_split_utf8_string_t );

	if( internal_split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_INSUFFICIENT,
	"%s: unable to create split string.",
	function );

	goto on_error;
	}
	if( memory_set(
	internal_split_string,
	0,
	sizeof( libfvalue_internal_split_utf8_string_t ) ) == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_SET_FAILED,
	"%s: unable to clear split string.",
	function );

	memory_free(
	internal_split_string );

	return( -1 );
	}
	if( ( utf8_string != NULL )
	&& ( utf8_string_size > 0 ) )
	{
	internal_split_string->string = (uint8_t *) memory_allocate(
	sizeof( uint8_t ) * utf8_string_size );

	if( internal_split_string->string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_INSUFFICIENT,
	"%s: unable to create string.",
	function );

	goto on_error;
	}
	if( memory_copy(
	internal_split_string->string,
	utf8_string,
	sizeof( uint8_t ) * ( utf8_string_size - 1 ) ) == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_SET_FAILED,
	"%s: unable to copy string.",
	function );

	goto on_error;
	}
	internal_split_string->string[ utf8_string_size - 1 ] = 0;
	internal_split_string->string_size = utf8_string_size;
	}
	if( number_of_segments > 0 )
	{
	internal_split_string->segments = (uint8_t **) memory_allocate(
	sizeof( uint8_t * ) * number_of_segments );

	if( internal_split_string->segments == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_INSUFFICIENT,
	"%s: unable to create segments.",
	function );

	goto on_error;
	}
	if( memory_set(
	internal_split_string->segments,
	0,
	sizeof( uint8_t * ) * number_of_segments ) == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_SET_FAILED,
	"%s: unable to clear segments.",
	function );

	goto on_error;
	}
	internal_split_string->segment_sizes = (size_t *) memory_allocate(
	sizeof( size_t ) * number_of_segments );

	if( internal_split_string->segment_sizes == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_INSUFFICIENT,
	"%s: unable to create segment sizes.",
	function );

	goto on_error;
	}
	if( memory_set(
	internal_split_string->segment_sizes,
	0,
	sizeof( size_t ) * number_of_segments ) == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_SET_FAILED,
	"%s: unable to clear segment sizes.",
	function );

	goto on_error;
	}
	}
	internal_split_string->number_of_segments = number_of_segments;

	split_string = (libfvalue_split_utf8_string_t ) internal_split_string;
	}
	return( 1 );

	on_error:
	if( internal_split_string != NULL )
	{
	if( internal_split_string->segment_sizes != NULL )
	{
	memory_free(
	internal_split_string->segment_sizes );
	}
	if( internal_split_string->segments != NULL )
	{
	memory_free(
	internal_split_string->segments );
	}
	if( internal_split_string->string != NULL )
	{
	memory_free(
	internal_split_string->string );
	}
	memory_free(
	internal_split_string );
	}
	return( -1 );
	}

	/* Frees the split UTF-8 string including elements
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf8_string_free(
	libfvalue_split_utf8_string_t **split_string,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf8_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf8_string_free";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	if( *split_string != NULL )
	{
	internal_split_string = (libfvalue_internal_split_utf8_string_t ) split_string;
	*split_string = NULL;

	if( internal_split_string->string != NULL )
	{
	memory_free(
	internal_split_string->string );
	}
	if( internal_split_string->segments != NULL )
	{
	memory_free(
	internal_split_string->segments );
	}
	if( internal_split_string->segment_sizes != NULL )
	{
	memory_free(
	internal_split_string->segment_sizes );
	}
	memory_free(
	internal_split_string );
	}
	return( 1 );
	}

	/* Retrieves the UTF-8 string
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf8_string_get_string(
	libfvalue_split_utf8_string_t *split_string,
	uint8_t **utf8_string,
	size_t *utf8_string_size,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf8_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf8_string_get_string";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	internal_split_string = (libfvalue_internal_split_utf8_string_t *) split_string;

	if( utf8_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid UTF-8 string.",
	function );

	return( -1 );
	}
	if( utf8_string_size == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid UTF-8 string size.",
	function );

	return( -1 );
	}
	*utf8_string = internal_split_string->string;
	*utf8_string_size = internal_split_string->string_size;

	return( 1 );
	}

	/* Retrieves the number of segments
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf8_string_get_number_of_segments(
	libfvalue_split_utf8_string_t *split_string,
	int *number_of_segments,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf8_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf8_string_get_number_of_segments";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	internal_split_string = (libfvalue_internal_split_utf8_string_t *) split_string;

	if( number_of_segments == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid number of segments.",
	function );

	return( -1 );
	}
	*number_of_segments = internal_split_string->number_of_segments;

	return( 1 );
	}

	/* Retrieves a specific segment
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf8_string_get_segment_by_index(
	libfvalue_split_utf8_string_t *split_string,
	int segment_index,
	uint8_t **utf8_string_segment,
	size_t *utf8_string_segment_size,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf8_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf8_string_get_segment_by_index";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	internal_split_string = (libfvalue_internal_split_utf8_string_t *) split_string;

	if( ( segment_index < 0 )
	\|\| ( segment_index >= internal_split_string->number_of_segments ) )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid segment index value out of bounds.",
	function );

	return( -1 );
	}
	if( utf8_string_segment == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid UTF-8 string segment.",
	function );

	return( -1 );
	}
	if( utf8_string_segment_size == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid UTF-8 string segment size.",
	function );

	return( -1 );
	}
	*utf8_string_segment = internal_split_string->segments[ segment_index ];
	*utf8_string_segment_size = internal_split_string->segment_sizes[ segment_index ];

	return( 1 );
	}

	/* Sets a specific segment
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf8_string_set_segment_by_index(
	libfvalue_split_utf8_string_t *split_string,
	int segment_index,
	uint8_t *utf8_string_segment,
	size_t utf8_string_segment_size,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf8_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf8_string_set_segment_by_index";
	size_t utf8_string_segment_offset = 0;

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	internal_split_string = (libfvalue_internal_split_utf8_string_t *) split_string;

	if( ( segment_index < 0 )
	\|\| ( segment_index >= internal_split_string->number_of_segments ) )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid segment index value out of bounds.",
	function );

	return( -1 );
	}
	if( utf8_string_segment == NULL )
	{
	if( utf8_string_segment_size != 0 )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid UTF-8 string segment size value out of bounds.",
	function );

	return( -1 );
	}
	}
	else
	{
	if( utf8_string_segment < internal_split_string->string )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid UTF-8 string segment value out of bounds.",
	function );

	return( -1 );
	}
	utf8_string_segment_offset = (size_t) ( utf8_string_segment - internal_split_string->string );

	if( utf8_string_segment_offset > internal_split_string->string_size )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid UTF-8 string segment value out of bounds.",
	function );

	return( -1 );
	}
	utf8_string_segment_offset += utf8_string_segment_size;

	if( utf8_string_segment_offset > internal_split_string->string_size )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid UTF-8 string segment value out of bounds.",
	function );

	return( -1 );
	}
	}
	internal_split_string->segments[ segment_index ] = utf8_string_segment;
	internal_split_string->segment_sizes[ segment_index ] = utf8_string_segment_size;

	return( 1 );
	}

	/* Initializes the split UTF-16 string
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf16_string_initialize(
	libfvalue_split_utf16_string_t **split_string,
	const uint16_t *utf16_string,
	size_t utf16_string_size,
	int number_of_segments,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf16_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf16_string_initialize";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	if( number_of_segments < 0 )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_LESS_THAN_ZERO,
	"%s: invalid number of segments less than zero.",
	function );

	return( -1 );
	}
	if( *split_string == NULL )
	{
	internal_split_string = memory_allocate_structure(
	libfvalue_internal_split_utf16_string_t );

	if( internal_split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_INSUFFICIENT,
	"%s: unable to create split string.",
	function );

	goto on_error;
	}
	if( memory_set(
	internal_split_string,
	0,
	sizeof( libfvalue_internal_split_utf16_string_t ) ) == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_SET_FAILED,
	"%s: unable to clear split string.",
	function );

	memory_free(
	internal_split_string );

	return( -1 );
	}
	if( ( utf16_string != NULL )
	&& ( utf16_string_size > 0 ) )
	{
	internal_split_string->string = (uint16_t *) memory_allocate(
	sizeof( uint16_t ) * utf16_string_size );

	if( internal_split_string->string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_INSUFFICIENT,
	"%s: unable to create string.",
	function );

	goto on_error;
	}
	if( memory_copy(
	internal_split_string->string,
	utf16_string,
	sizeof( uint16_t ) * ( utf16_string_size - 1 ) ) == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_SET_FAILED,
	"%s: unable to copy string.",
	function );

	goto on_error;
	}
	internal_split_string->string[ utf16_string_size - 1 ] = 0;
	internal_split_string->string_size = utf16_string_size;
	}
	if( number_of_segments > 0 )
	{
	internal_split_string->segments = (uint16_t **) memory_allocate(
	sizeof( uint16_t * ) * number_of_segments );

	if( internal_split_string->segments == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_INSUFFICIENT,
	"%s: unable to create segments.",
	function );

	goto on_error;
	}
	if( memory_set(
	internal_split_string->segments,
	0,
	sizeof( uint16_t * ) * number_of_segments ) == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_SET_FAILED,
	"%s: unable to clear segments.",
	function );

	goto on_error;
	}
	internal_split_string->segment_sizes = (size_t *) memory_allocate(
	sizeof( size_t ) * number_of_segments );

	if( internal_split_string->segment_sizes == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_INSUFFICIENT,
	"%s: unable to create segment sizes.",
	function );

	goto on_error;
	}
	if( memory_set(
	internal_split_string->segment_sizes,
	0,
	sizeof( size_t ) * number_of_segments ) == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_MEMORY,
	LIBERROR_MEMORY_ERROR_SET_FAILED,
	"%s: unable to clear segment sizes.",
	function );

	goto on_error;
	}
	}
	internal_split_string->number_of_segments = number_of_segments;

	split_string = (libfvalue_split_utf16_string_t ) internal_split_string;
	}
	return( 1 );

	on_error:
	if( internal_split_string != NULL )
	{
	if( internal_split_string->segment_sizes != NULL )
	{
	memory_free(
	internal_split_string->segment_sizes );
	}
	if( internal_split_string->segments != NULL )
	{
	memory_free(
	internal_split_string->segments );
	}
	if( internal_split_string->string != NULL )
	{
	memory_free(
	internal_split_string->string );
	}
	memory_free(
	internal_split_string );
	}
	return( -1 );
	}

	/* Frees the split UTF-16 string including elements
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf16_string_free(
	libfvalue_split_utf16_string_t **split_string,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf16_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf16_string_free";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	if( *split_string != NULL )
	{
	internal_split_string = (libfvalue_internal_split_utf16_string_t ) split_string;
	*split_string = NULL;

	if( internal_split_string->string != NULL )
	{
	memory_free(
	internal_split_string->string );
	}
	if( internal_split_string->segments != NULL )
	{
	memory_free(
	internal_split_string->segments );
	}
	if( internal_split_string->segment_sizes != NULL )
	{
	memory_free(
	internal_split_string->segment_sizes );
	}
	memory_free(
	internal_split_string );
	}
	return( 1 );
	}

	/* Retrieves the UTF-16 string
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf16_string_get_string(
	libfvalue_split_utf16_string_t *split_string,
	uint16_t **utf16_string,
	size_t *utf16_string_size,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf16_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf16_string_get_string";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	internal_split_string = (libfvalue_internal_split_utf16_string_t *) split_string;

	if( utf16_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid UTF-16 string.",
	function );

	return( -1 );
	}
	if( utf16_string_size == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid UTF-16 string size.",
	function );

	return( -1 );
	}
	*utf16_string = internal_split_string->string;
	*utf16_string_size = internal_split_string->string_size;

	return( 1 );
	}

	/* Retrieves the number of segments
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf16_string_get_number_of_segments(
	libfvalue_split_utf16_string_t *split_string,
	int *number_of_segments,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf16_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf16_string_get_number_of_segments";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	internal_split_string = (libfvalue_internal_split_utf16_string_t *) split_string;

	if( number_of_segments == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid number of segments.",
	function );

	return( -1 );
	}
	*number_of_segments = internal_split_string->number_of_segments;

	return( 1 );
	}

	/* Retrieves a specific segment
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf16_string_get_segment_by_index(
	libfvalue_split_utf16_string_t *split_string,
	int segment_index,
	uint16_t **utf16_string_segment,
	size_t *utf16_string_segment_size,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf16_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf16_string_get_segment_by_index";

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	internal_split_string = (libfvalue_internal_split_utf16_string_t *) split_string;

	if( ( segment_index < 0 )
	\|\| ( segment_index >= internal_split_string->number_of_segments ) )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid segment index value out of bounds.",
	function );

	return( -1 );
	}
	if( utf16_string_segment == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid UTF-16 string segment.",
	function );

	return( -1 );
	}
	if( utf16_string_segment_size == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid UTF-16 string segment size.",
	function );

	return( -1 );
	}
	*utf16_string_segment = internal_split_string->segments[ segment_index ];
	*utf16_string_segment_size = internal_split_string->segment_sizes[ segment_index ];

	return( 1 );
	}

	/* Sets a specific segment
	* Returns 1 if successful or -1 on error
	*/
	int libfvalue_split_utf16_string_set_segment_by_index(
	libfvalue_split_utf16_string_t *split_string,
	int segment_index,
	uint16_t *utf16_string_segment,
	size_t utf16_string_segment_size,
	liberror_error_t **error )
	{
	libfvalue_internal_split_utf16_string_t *internal_split_string = NULL;
	static char *function = "libfvalue_split_utf16_string_set_segment_by_index";
	size_t utf16_string_segment_offset = 0;

	if( split_string == NULL )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_INVALID_VALUE,
	"%s: invalid split string.",
	function );

	return( -1 );
	}
	internal_split_string = (libfvalue_internal_split_utf16_string_t *) split_string;

	if( ( segment_index < 0 )
	\|\| ( segment_index >= internal_split_string->number_of_segments ) )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid segment index value out of bounds.",
	function );

	return( -1 );
	}
	if( utf16_string_segment_size > (size_t) SSIZE_MAX )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
	"%s: invalid UTF-16 string segment size value exceeds maximum.",
	function );

	return( -1 );
	}
	if( utf16_string_segment == NULL )
	{
	if( utf16_string_segment_size != 0 )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid UTF-16 string segment size value out of bounds.",
	function );

	return( -1 );
	}
	}
	else
	{
	if( utf16_string_segment < internal_split_string->string )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid UTF-16 string segment value out of bounds.",
	function );

	return( -1 );
	}
	utf16_string_segment_offset = (size_t) ( utf16_string_segment - internal_split_string->string );

	if( utf16_string_segment_offset > internal_split_string->string_size )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid UTF-16 string segment value out of bounds.",
	function );

	return( -1 );
	}
	utf16_string_segment_offset += utf16_string_segment_size;

	if( utf16_string_segment_offset > internal_split_string->string_size )
	{
	liberror_error_set(
	error,
	LIBERROR_ERROR_DOMAIN_ARGUMENTS,
	LIBERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS,
	"%s: invalid UTF-16 string segment value out of bounds.",
	function );

	return( -1 );
	}
	}
	internal_split_string->segments[ segment_index ] = utf16_string_segment;
	internal_split_string->segment_sizes[ segment_index ] = utf16_string_segment_size;

	return( 1 );
	}

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