File: /home/django/libpff/libfvalue/libfvalue_integer.c
/*
* Integer value functions
*
* Copyright (C) 2010-2024, 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 <byte_stream.h>
#include <memory.h>
#include <types.h>
#include "libfvalue_definitions.h"
#include "libfvalue_integer.h"
#include "libfvalue_libcerror.h"
/* Creates an integer
* Make sure the value integer is referencing, is set to NULL
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_initialize(
libfvalue_integer_t **integer,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_initialize";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( *integer != NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
"%s: invalid integer value already set.",
function );
return( -1 );
}
*integer = memory_allocate_structure(
libfvalue_integer_t );
if( *integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
"%s: unable to create integer.",
function );
goto on_error;
}
if( memory_set(
*integer,
0,
sizeof( libfvalue_integer_t ) ) == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_SET_FAILED,
"%s: unable to clear integer.",
function );
goto on_error;
}
return( 1 );
on_error:
if( *integer != NULL )
{
memory_free(
*integer );
*integer = NULL;
}
return( -1 );
}
/* Frees an integer
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_free(
libfvalue_integer_t **integer,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_free";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( *integer != NULL )
{
memory_free(
*integer );
*integer = NULL;
}
return( 1 );
}
/* Clones an integer
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_clone(
libfvalue_integer_t **destination_integer,
libfvalue_integer_t *source_integer,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_clone";
if( destination_integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid destination integer.",
function );
return( -1 );
}
if( *destination_integer != NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
"%s: destination integer already set.",
function );
return( -1 );
}
if( source_integer == NULL )
{
*destination_integer = NULL;
return( 1 );
}
*destination_integer = memory_allocate_structure(
libfvalue_integer_t );
if( *destination_integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
"%s: unable to create destination integer.",
function );
goto on_error;
}
if( memory_copy(
*destination_integer,
source_integer,
sizeof( libfvalue_integer_t ) ) == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_COPY_FAILED,
"%s: unable to copy integer.",
function );
goto on_error;
}
return( 1 );
on_error:
if( *destination_integer != NULL )
{
memory_free(
*destination_integer );
*destination_integer = NULL;
}
return( -1 );
}
/* Copies the integer from a byte stream
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_from_byte_stream(
libfvalue_integer_t *integer,
const uint8_t *byte_stream,
size_t byte_stream_size,
int encoding,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_from_byte_stream";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
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( ( encoding != LIBFVALUE_ENDIAN_BIG )
&& ( encoding != LIBFVALUE_ENDIAN_LITTLE )
&& ( encoding != LIBFVALUE_ENDIAN_NATIVE ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported encoding.",
function );
return( -1 );
}
switch( byte_stream_size )
{
case 1:
integer->value = (uint64_t) *( (uint8_t *) byte_stream );
break;
case 2:
if( encoding == LIBFVALUE_ENDIAN_BIG )
{
byte_stream_copy_to_uint16_big_endian(
byte_stream,
integer->value );
}
else if( encoding == LIBFVALUE_ENDIAN_LITTLE )
{
byte_stream_copy_to_uint16_little_endian(
byte_stream,
integer->value );
}
else
{
integer->value = (uint64_t) *( (uint16_t *) byte_stream );
}
break;
case 4:
if( encoding == LIBFVALUE_ENDIAN_BIG )
{
byte_stream_copy_to_uint32_big_endian(
byte_stream,
integer->value );
}
else if( encoding == LIBFVALUE_ENDIAN_LITTLE )
{
byte_stream_copy_to_uint32_little_endian(
byte_stream,
integer->value );
}
else
{
integer->value = (uint64_t) *( (uint32_t *) byte_stream );
}
break;
case 8:
if( encoding == LIBFVALUE_ENDIAN_BIG )
{
byte_stream_copy_to_uint64_big_endian(
byte_stream,
integer->value );
}
else if( encoding == LIBFVALUE_ENDIAN_LITTLE )
{
byte_stream_copy_to_uint64_little_endian(
byte_stream,
integer->value );
}
else
{
integer->value = (uint64_t) *( (uint64_t *) byte_stream );
}
break;
default:
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported byte stream size: %" PRIzd ".",
function,
byte_stream_size );
return( -1 );
}
integer->value_size = byte_stream_size * 8;
return( 1 );
}
/* Copies the integer from an integer value
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_from_integer(
libfvalue_integer_t *integer,
uint64_t integer_value,
size_t integer_value_size,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_from_integer";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( ( integer_value_size != 8 )
&& ( integer_value_size != 16 )
&& ( integer_value_size != 32 )
&& ( integer_value_size != 64 ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported integer value size.",
function );
return( -1 );
}
integer->value = integer_value;
integer->value_size = integer_value_size;
return( 1 );
}
/* Copies the integer to an integer value
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_to_integer(
libfvalue_integer_t *integer,
uint64_t *integer_value,
size_t *integer_value_size,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_to_integer";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( integer_value == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer value.",
function );
return( -1 );
}
if( integer_value_size == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer value size.",
function );
return( -1 );
}
*integer_value = integer->value;
*integer_value_size = integer->value_size;
return( 1 );
}
/* Retrieves the size of a string of the integer
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_get_string_size(
libfvalue_integer_t *integer,
size_t *string_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_get_string_size";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( libfvalue_string_size_from_integer(
string_size,
integer->value,
integer->value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to determine size of string of %" PRIzd "-bit integer.",
function,
integer->value_size );
return( -1 );
}
return( 1 );
}
/* Copies the integer from an UTF-8 encoded string
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_from_utf8_string_with_index(
libfvalue_integer_t *integer,
uint8_t *utf8_string,
size_t utf8_string_length,
size_t *utf8_string_index,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_from_utf8_string_with_index";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( libfvalue_utf8_string_with_index_copy_to_integer(
utf8_string,
utf8_string_length,
utf8_string_index,
&( integer->value ),
integer->value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy %" PRIzd "-bit integer from UTF-8 string.",
function,
integer->value_size );
return( -1 );
}
return( 1 );
}
/* Copies the integer to an UTF-8 encoded string
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_to_utf8_string_with_index(
libfvalue_integer_t *integer,
uint8_t *utf8_string,
size_t utf8_string_size,
size_t *utf8_string_index,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_to_utf8_string_with_index";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( libfvalue_utf8_string_with_index_copy_from_integer(
utf8_string,
utf8_string_size,
utf8_string_index,
integer->value,
integer->value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy %" PRIzd "-bit integer to UTF-8 string.",
function,
integer->value_size );
return( -1 );
}
return( 1 );
}
/* Copies the integer from an UTF-16 encoded string
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_from_utf16_string_with_index(
libfvalue_integer_t *integer,
uint16_t *utf16_string,
size_t utf16_string_length,
size_t *utf16_string_index,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_from_utf16_string_with_index";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( libfvalue_utf16_string_with_index_copy_to_integer(
utf16_string,
utf16_string_length,
utf16_string_index,
&( integer->value ),
integer->value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy %" PRIzd "-bit integer from UTF-16 string.",
function,
integer->value_size );
return( -1 );
}
return( 1 );
}
/* Copies the integer to an UTF-16 encoded string
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_to_utf16_string_with_index(
libfvalue_integer_t *integer,
uint16_t *utf16_string,
size_t utf16_string_size,
size_t *utf16_string_index,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_to_utf16_string_with_index";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( libfvalue_utf16_string_with_index_copy_from_integer(
utf16_string,
utf16_string_size,
utf16_string_index,
integer->value,
integer->value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy %" PRIzd "-bit integer to UTF-16 string.",
function,
integer->value_size );
return( -1 );
}
return( 1 );
}
/* Copies the integer from an UTF-32 encoded string
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_from_utf32_string_with_index(
libfvalue_integer_t *integer,
uint32_t *utf32_string,
size_t utf32_string_length,
size_t *utf32_string_index,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_from_utf32_string_with_index";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( libfvalue_utf32_string_with_index_copy_to_integer(
utf32_string,
utf32_string_length,
utf32_string_index,
&( integer->value ),
integer->value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy %" PRIzd "-bit integer from UTF-32 string.",
function,
integer->value_size );
return( -1 );
}
return( 1 );
}
/* Copies the integer to an UTF-32 encoded string
* Returns 1 if successful or -1 on error
*/
int libfvalue_integer_copy_to_utf32_string_with_index(
libfvalue_integer_t *integer,
uint32_t *utf32_string,
size_t utf32_string_size,
size_t *utf32_string_index,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_integer_copy_to_utf32_string_with_index";
if( integer == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer.",
function );
return( -1 );
}
if( libfvalue_utf32_string_with_index_copy_from_integer(
utf32_string,
utf32_string_size,
utf32_string_index,
integer->value,
integer->value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy %" PRIzd "-bit integer to UTF-32 string.",
function,
integer->value_size );
return( -1 );
}
return( 1 );
}
/* Determines the size of a string of an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_string_size_from_integer(
size_t *string_size,
uint64_t integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_string_size_from_integer";
uint64_t divider = 0;
uint32_t string_format_type = 0;
uint32_t supported_flags = 0;
uint8_t is_signed = 0;
int8_t bit_shift = 0;
if( string_size == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid string size.",
function );
return( -1 );
}
if( ( integer_value_size != 8 )
&& ( integer_value_size != 16 )
&& ( integer_value_size != 32 )
&& ( integer_value_size != 64 ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported integer value size.",
function );
return( -1 );
}
supported_flags = 0x000000ffUL
| LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_UNSIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR;
if( ( string_format_flags & ~( supported_flags ) ) != 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format flags: 0x%08" PRIx32 ".",
function,
string_format_flags );
return( -1 );
}
string_format_type = string_format_flags & 0x000000ffUL;
if( ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_DECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format type.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
*string_size = 6;
}
else
{
*string_size = 5;
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
*string_size = ( integer_value_size >> 2 ) + 1;
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
*string_size += 2;
}
}
else
{
/* The string is at least a single digit with an end of string character
*/
*string_size = 2;
bit_shift = (uint8_t) ( integer_value_size - 1 );
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED ) != 0 )
{
is_signed = (uint8_t) ( integer_value >> bit_shift );
if( is_signed != 0 )
{
*string_size += 1;
integer_value &= ~( (uint64_t) 1 << bit_shift );
if( integer_value == 0 )
{
integer_value |= (uint64_t) 1 << bit_shift;
}
}
}
divider = 1;
while( ( integer_value / divider ) >= 10 )
{
divider *= 10;
*string_size += 1;
}
}
return( 1 );
}
/* Copies an UTF-8 encoded string from an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf8_string_copy_from_integer(
uint8_t *utf8_string,
size_t utf8_string_size,
uint64_t integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf8_string_copy_from_integer";
size_t utf8_string_index = 0;
if( libfvalue_utf8_string_with_index_copy_from_integer(
utf8_string,
utf8_string_size,
&utf8_string_index,
integer_value,
integer_value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy integer value to UTF-8 string.",
function );
return( -1 );
}
return( 1 );
}
/* Copies an UTF-8 encoded string of from integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf8_string_with_index_copy_from_integer(
uint8_t *utf8_string,
size_t utf8_string_size,
size_t *utf8_string_index,
uint64_t integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf8_string_with_index_copy_from_integer";
size_t safe_utf8_string_index = 0;
uint64_t divider = 0;
uint32_t string_format_type = 0;
uint32_t supported_flags = 0;
uint8_t byte_value = 0;
uint8_t is_signed = 0;
uint8_t number_of_characters = 0;
int8_t bit_shift = 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( utf8_string_index == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid UTF-8 string index.",
function );
return( -1 );
}
if( *utf8_string_index >= utf8_string_size )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
"%s: invalid UTF-8 string index value out of bounds.",
function );
return( -1 );
}
safe_utf8_string_index = *utf8_string_index;
if( ( integer_value_size != 8 )
&& ( integer_value_size != 16 )
&& ( integer_value_size != 32 )
&& ( integer_value_size != 64 ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported integer value size.",
function );
return( -1 );
}
supported_flags = 0x000000ffUL
| LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_UNSIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR;
if( ( string_format_flags & ~( supported_flags ) ) != 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format flags: 0x%08" PRIx32 ".",
function,
string_format_flags );
return( -1 );
}
string_format_type = string_format_flags & 0x000000ffUL;
if( ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_DECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format type.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
number_of_characters = 6;
}
else
{
number_of_characters = 5;
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
number_of_characters = (uint8_t) ( integer_value_size >> 2 ) + 1;
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
number_of_characters += 2;
}
}
else
{
/* The string is at least a single digit with an end of string character
*/
number_of_characters = 2;
bit_shift = (uint8_t) ( integer_value_size - 1 );
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED ) != 0 )
{
is_signed = (uint8_t) ( integer_value >> bit_shift );
if( is_signed != 0 )
{
number_of_characters += 1;
integer_value &= ~( (uint64_t) 1 << bit_shift );
if( integer_value == 0 )
{
integer_value |= (uint64_t) 1 << bit_shift;
}
}
}
divider = 1;
while( ( integer_value / divider ) >= 10 )
{
divider *= 10;
number_of_characters += 1;
}
}
if( ( number_of_characters > utf8_string_size )
|| ( safe_utf8_string_index > ( utf8_string_size - number_of_characters ) ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
"%s: UTF-8 string size too small.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'f';
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'a';
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'l';
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 's';
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'e';
}
else
{
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 't';
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'r';
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'u';
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'e';
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0';
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'x';
}
bit_shift = (uint8_t) ( integer_value_size - 4 );
do
{
byte_value = (uint8_t) ( ( integer_value >> bit_shift ) & 0x0f );
if( byte_value <= 9 )
{
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + byte_value;
}
else
{
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'a' + byte_value - 10;
}
bit_shift -= 4;
}
while( bit_shift >= 0 );
}
else
{
if( is_signed != 0 )
{
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '-';
}
while( divider > 1 )
{
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + (uint8_t) ( integer_value / divider );
integer_value %= divider;
divider /= 10;
}
utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + (uint8_t) ( integer_value / divider );
}
utf8_string[ safe_utf8_string_index++ ] = 0;
*utf8_string_index = safe_utf8_string_index;
return( 1 );
}
/* Copies an UTF-8 encoded string to an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf8_string_copy_to_integer(
const uint8_t *utf8_string,
size_t utf8_string_length,
uint64_t *integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf8_string_copy_to_integer";
size_t utf8_string_index = 0;
if( libfvalue_utf8_string_with_index_copy_to_integer(
utf8_string,
utf8_string_length,
&utf8_string_index,
integer_value,
integer_value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy UTF-8 string to integer value.",
function );
return( -1 );
}
return( 1 );
}
/* Copies an UTF-8 encoded string to an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf8_string_with_index_copy_to_integer(
const uint8_t *utf8_string,
size_t utf8_string_length,
size_t *utf8_string_index,
uint64_t *integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf8_string_with_index_copy_to_integer";
size_t maximum_string_index = 0;
size_t safe_utf8_string_index = 0;
uint64_t divider = 0;
uint64_t value_64bit = 0;
uint32_t string_format_type = 0;
uint32_t supported_flags = 0;
uint8_t byte_value = 0;
uint8_t character_value = 0;
int8_t bit_shift = 0;
int8_t sign = 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_length > (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( utf8_string_index == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid UTF-8 string index.",
function );
return( -1 );
}
if( *utf8_string_index >= utf8_string_length )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
"%s: invalid UTF-8 string index value out of bounds.",
function );
return( -1 );
}
safe_utf8_string_index = *utf8_string_index;
if( integer_value == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer value.",
function );
return( -1 );
}
if( ( integer_value_size != 8 )
&& ( integer_value_size != 16 )
&& ( integer_value_size != 32 )
&& ( integer_value_size != 64 ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported integer value size.",
function );
return( -1 );
}
supported_flags = 0x000000ffUL
| LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_UNSIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR;
if( ( string_format_flags & ~( supported_flags ) ) != 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format flags: 0x%08" PRIx32 ".",
function,
string_format_flags );
return( -1 );
}
string_format_type = string_format_flags & 0x000000ffUL;
if( ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_DECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format type.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
maximum_string_index = 5;
}
else
{
maximum_string_index = 4;
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
maximum_string_index = (size_t) ( integer_value_size >> 2 );
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
maximum_string_index += 2;
}
}
else
{
/* The string is at least a single digit with an end of string character
*/
maximum_string_index = 2;
bit_shift = (uint8_t) ( integer_value_size - 1 );
divider = 1;
value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift );
while( ( value_64bit / divider ) >= 10 )
{
divider *= 10;
maximum_string_index += 1;
}
}
maximum_string_index += safe_utf8_string_index;
if( maximum_string_index > (size_t) SSIZE_MAX )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,
"%s: invalid maximum string index value exceeds maximum.",
function );
return( -1 );
}
value_64bit = 0;
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
/* TODO */
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
character_value = utf8_string[ safe_utf8_string_index++ ];
if( character_value != (uint8_t) '0' )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x%02" PRIx8 " at index: %d.",
function,
character_value,
safe_utf8_string_index );
return( -1 );
}
character_value = utf8_string[ safe_utf8_string_index++ ];
if( character_value != (uint8_t) 'x' )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x%02" PRIx8 " at index: %d.",
function,
character_value,
safe_utf8_string_index );
return( -1 );
}
}
while( safe_utf8_string_index < utf8_string_length )
{
character_value = utf8_string[ safe_utf8_string_index ];
if( character_value == 0 )
{
break;
}
if( safe_utf8_string_index > (size_t) maximum_string_index )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE,
"%s: string too large.",
function );
return( -1 );
}
value_64bit <<= 4;
if( ( character_value >= (uint8_t) '0' )
&& ( character_value <= (uint8_t) '9' ) )
{
byte_value = character_value - (uint8_t) '0';
}
else if( ( character_value >= (uint8_t) 'A' )
&& ( character_value <= (uint8_t) 'F' ) )
{
byte_value = character_value - (uint8_t) 'A' + 10;
}
else if( ( character_value >= (uint8_t) 'a' )
&& ( character_value <= (uint8_t) 'f' ) )
{
byte_value = character_value - (uint8_t) 'a' + 10;
}
else
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x%02" PRIx8 " at index: %d.",
function,
character_value,
safe_utf8_string_index );
return( -1 );
}
value_64bit += byte_value;
safe_utf8_string_index++;
}
}
else
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED ) != 0 )
{
character_value = utf8_string[ safe_utf8_string_index ];
/* In the maximum possible string one character is substituted for the sign
*/
if( character_value == (uint8_t) '-' )
{
safe_utf8_string_index++;
sign = -1;
}
else if( character_value == (uint8_t) '+' )
{
safe_utf8_string_index++;
}
}
while( safe_utf8_string_index < utf8_string_length )
{
character_value = utf8_string[ safe_utf8_string_index ];
if( character_value == 0 )
{
break;
}
if( safe_utf8_string_index > (size_t) maximum_string_index )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE,
"%s: string too large.",
function );
return( -1 );
}
value_64bit *= 10;
if( ( character_value < (uint8_t) '0' )
|| ( character_value > (uint8_t) '9' ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x%02" PRIx8 " at index: %d.",
function,
character_value,
safe_utf8_string_index );
return( -1 );
}
character_value -= (uint8_t) '0';
value_64bit += character_value;
safe_utf8_string_index++;
}
if( ( sign == -1 )
&& ( value_64bit != 0 ) )
{
value_64bit = ~( value_64bit - 1 );
}
}
*utf8_string_index = safe_utf8_string_index;
*integer_value = value_64bit;
return( 1 );
}
/* Copies an UTF-16 encoded string of an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf16_string_copy_from_integer(
uint16_t *utf16_string,
size_t utf16_string_size,
uint64_t integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf16_string_copy_from_integer";
size_t utf16_string_index = 0;
if( libfvalue_utf16_string_with_index_copy_from_integer(
utf16_string,
utf16_string_size,
&utf16_string_index,
integer_value,
integer_value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy integer value to UTF-16 string.",
function );
return( -1 );
}
return( 1 );
}
/* Copies an UTF-16 encoded string of an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf16_string_with_index_copy_from_integer(
uint16_t *utf16_string,
size_t utf16_string_size,
size_t *utf16_string_index,
uint64_t integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf16_string_with_index_copy_from_integer";
size_t safe_utf16_string_index = 0;
uint64_t divider = 0;
uint32_t string_format_type = 0;
uint32_t supported_flags = 0;
uint8_t byte_value = 0;
uint8_t is_signed = 0;
uint8_t number_of_characters = 0;
int8_t bit_shift = 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( utf16_string_index == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid UTF-16 string index.",
function );
return( -1 );
}
if( *utf16_string_index >= utf16_string_size )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
"%s: invalid UTF-16 string index value out of bounds.",
function );
return( -1 );
}
safe_utf16_string_index = *utf16_string_index;
if( ( integer_value_size != 8 )
&& ( integer_value_size != 16 )
&& ( integer_value_size != 32 )
&& ( integer_value_size != 64 ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported integer value size.",
function );
return( -1 );
}
supported_flags = 0x000000ffUL
| LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_UNSIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR;
if( ( string_format_flags & ~( supported_flags ) ) != 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format flags: 0x%08" PRIx32 ".",
function,
string_format_flags );
return( -1 );
}
string_format_type = string_format_flags & 0x000000ffUL;
if( ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_DECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format type.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
number_of_characters = 6;
}
else
{
number_of_characters = 5;
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
number_of_characters = (uint8_t) ( integer_value_size >> 2 ) + 1;
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
number_of_characters += 2;
}
}
else
{
/* The string is at least a single digit with an end of string character
*/
number_of_characters = 2;
bit_shift = (uint8_t) ( integer_value_size - 1 );
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED ) != 0 )
{
is_signed = (uint8_t) ( integer_value >> bit_shift );
if( is_signed != 0 )
{
number_of_characters += 1;
integer_value &= ~( (uint64_t) 1 << bit_shift );
if( integer_value == 0 )
{
integer_value |= (uint64_t) 1 << bit_shift;
}
}
}
divider = 1;
while( ( integer_value / divider ) >= 10 )
{
divider *= 10;
number_of_characters += 1;
}
}
if( ( number_of_characters > utf16_string_size )
|| ( safe_utf16_string_index > ( utf16_string_size - number_of_characters ) ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
"%s: UTF-16 string size too small.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'f';
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'a';
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'l';
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 's';
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'e';
}
else
{
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 't';
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'r';
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'u';
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'e';
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0';
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'x';
}
bit_shift = (uint8_t) ( integer_value_size - 4 );
do
{
byte_value = (uint16_t) ( ( integer_value >> bit_shift ) & 0x0f );
if( byte_value <= 9 )
{
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + byte_value;
}
else
{
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'a' + byte_value - 10;
}
bit_shift -= 4;
}
while( bit_shift >= 0 );
}
else
{
if( is_signed != 0 )
{
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '-';
}
while( divider > 1 )
{
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + (uint16_t) ( integer_value / divider );
integer_value %= divider;
divider /= 10;
}
utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + (uint16_t) ( integer_value / divider );
}
utf16_string[ safe_utf16_string_index++ ] = 0;
*utf16_string_index = safe_utf16_string_index;
return( 1 );
}
/* Copies an UTF-16 encoded string to an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf16_string_copy_to_integer(
const uint16_t *utf16_string,
size_t utf16_string_length,
uint64_t *integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf16_string_copy_to_integer";
size_t utf16_string_index = 0;
if( libfvalue_utf16_string_with_index_copy_to_integer(
utf16_string,
utf16_string_length,
&utf16_string_index,
integer_value,
integer_value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy UTF-16 string to integer value.",
function );
return( -1 );
}
return( 1 );
}
/* Copies an UTF-16 encoded string to an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf16_string_with_index_copy_to_integer(
const uint16_t *utf16_string,
size_t utf16_string_length,
size_t *utf16_string_index,
uint64_t *integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf16_string_with_index_copy_to_integer";
size_t maximum_string_index = 0;
size_t safe_utf16_string_index = 0;
uint64_t divider = 0;
uint64_t value_64bit = 0;
uint32_t string_format_type = 0;
uint32_t supported_flags = 0;
uint16_t character_value = 0;
uint8_t byte_value = 0;
int8_t bit_shift = 0;
int8_t sign = 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_length > (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( utf16_string_index == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid UTF-16 string index.",
function );
return( -1 );
}
if( *utf16_string_index >= utf16_string_length )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
"%s: invalid UTF-16 string index value out of bounds.",
function );
return( -1 );
}
safe_utf16_string_index = *utf16_string_index;
if( integer_value == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer value.",
function );
return( -1 );
}
if( ( integer_value_size != 8 )
&& ( integer_value_size != 16 )
&& ( integer_value_size != 32 )
&& ( integer_value_size != 64 ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported integer value size.",
function );
return( -1 );
}
supported_flags = 0x000000ffUL
| LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_UNSIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR;
if( ( string_format_flags & ~( supported_flags ) ) != 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format flags: 0x%08" PRIx32 ".",
function,
string_format_flags );
return( -1 );
}
string_format_type = string_format_flags & 0x000000ffUL;
if( ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_DECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format type.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
maximum_string_index = 5;
}
else
{
maximum_string_index = 4;
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
maximum_string_index = (size_t) ( integer_value_size >> 2 );
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
maximum_string_index += 2;
}
}
else
{
/* The string is at least a single digit with an end of string character
*/
maximum_string_index = 2;
bit_shift = (uint8_t) ( integer_value_size - 1 );
divider = 1;
value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift );
while( ( value_64bit / divider ) >= 10 )
{
divider *= 10;
maximum_string_index += 1;
}
}
maximum_string_index += safe_utf16_string_index;
if( maximum_string_index > (size_t) SSIZE_MAX )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,
"%s: invalid maximum string index value exceeds maximum.",
function );
return( -1 );
}
value_64bit = 0;
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
/* TODO */
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
character_value = utf16_string[ safe_utf16_string_index++ ];
if( character_value != (uint16_t) '0' )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x04%" PRIx16 " at index: %d.",
function,
character_value,
safe_utf16_string_index );
return( -1 );
}
character_value = utf16_string[ safe_utf16_string_index++ ];
if( character_value != (uint16_t) 'x' )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x04%" PRIx16 " at index: %d.",
function,
character_value,
safe_utf16_string_index );
return( -1 );
}
}
while( safe_utf16_string_index < utf16_string_length )
{
character_value = utf16_string[ safe_utf16_string_index ];
if( character_value == 0 )
{
break;
}
if( safe_utf16_string_index > (size_t) maximum_string_index )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE,
"%s: string too large.",
function );
return( -1 );
}
value_64bit <<= 4;
if( ( character_value >= (uint16_t) '0' )
&& ( character_value <= (uint16_t) '9' ) )
{
byte_value = (uint8_t) ( character_value - (uint16_t) '0' );
}
else if( ( character_value >= (uint16_t) 'A' )
&& ( character_value <= (uint16_t) 'F' ) )
{
byte_value = (uint8_t) ( character_value - (uint16_t) 'A' + 10 );
}
else if( ( character_value >= (uint16_t) 'a' )
&& ( character_value <= (uint16_t) 'f' ) )
{
byte_value = (uint8_t) ( character_value - (uint16_t) 'a' + 10 );
}
else
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x04%" PRIx16 " at index: %d.",
function,
character_value,
safe_utf16_string_index );
return( -1 );
}
value_64bit += byte_value;
safe_utf16_string_index++;
}
}
else
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED ) != 0 )
{
character_value = utf16_string[ safe_utf16_string_index ];
/* In the maximum possible string one character is substituted for the sign
*/
if( character_value == (uint16_t) '-' )
{
safe_utf16_string_index++;
sign = -1;
}
else if( character_value == (uint16_t) '+' )
{
safe_utf16_string_index++;
}
}
while( safe_utf16_string_index < utf16_string_length )
{
character_value = utf16_string[ safe_utf16_string_index ];
if( character_value == 0 )
{
break;
}
if( safe_utf16_string_index > (size_t) maximum_string_index )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE,
"%s: string too large.",
function );
return( -1 );
}
value_64bit *= 10;
if( ( character_value < (uint16_t) '0' )
|| ( character_value > (uint16_t) '9' ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x04%" PRIx16 " at index: %d.",
function,
character_value,
safe_utf16_string_index );
return( -1 );
}
character_value = (uint8_t) ( character_value - (uint16_t) '0' );
value_64bit += character_value;
safe_utf16_string_index++;
}
if( ( sign == -1 )
&& ( value_64bit != 0 ) )
{
value_64bit = ~( value_64bit - 1 );
}
}
*utf16_string_index = safe_utf16_string_index;
*integer_value = value_64bit;
return( 1 );
}
/* Copies an UTF-32 encoded string of an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf32_string_copy_from_integer(
uint32_t *utf32_string,
size_t utf32_string_size,
uint64_t integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf32_string_copy_from_integer";
size_t utf32_string_index = 0;
if( libfvalue_utf32_string_with_index_copy_from_integer(
utf32_string,
utf32_string_size,
&utf32_string_index,
integer_value,
integer_value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy integer value to UTF-32 string.",
function );
return( -1 );
}
return( 1 );
}
/* Copies an UTF-32 encoded string of an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf32_string_with_index_copy_from_integer(
uint32_t *utf32_string,
size_t utf32_string_size,
size_t *utf32_string_index,
uint64_t integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf32_string_with_index_copy_from_integer";
size_t safe_utf32_string_index = 0;
uint64_t divider = 0;
uint32_t string_format_type = 0;
uint32_t supported_flags = 0;
uint8_t byte_value = 0;
uint8_t is_signed = 0;
uint8_t number_of_characters = 0;
int8_t bit_shift = 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( utf32_string_index == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid UTF-32 string index.",
function );
return( -1 );
}
if( *utf32_string_index >= utf32_string_size )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
"%s: invalid UTF-32 string index value out of bounds.",
function );
return( -1 );
}
safe_utf32_string_index = *utf32_string_index;
if( ( integer_value_size != 8 )
&& ( integer_value_size != 16 )
&& ( integer_value_size != 32 )
&& ( integer_value_size != 64 ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported integer value size.",
function );
return( -1 );
}
supported_flags = 0x000000ffUL
| LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_UNSIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR;
if( ( string_format_flags & ~( supported_flags ) ) != 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format flags: 0x%08" PRIx32 ".",
function,
string_format_flags );
return( -1 );
}
string_format_type = string_format_flags & 0x000000ffUL;
if( ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_DECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format type.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
number_of_characters = 6;
}
else
{
number_of_characters = 5;
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
number_of_characters = (uint8_t) ( integer_value_size >> 2 ) + 1;
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
number_of_characters += 2;
}
}
else
{
/* The string is at least a single digit with an end of string character
*/
number_of_characters = 2;
bit_shift = (uint8_t) ( integer_value_size - 1 );
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED ) != 0 )
{
is_signed = (uint8_t) ( integer_value >> bit_shift );
if( is_signed != 0 )
{
number_of_characters += 1;
integer_value &= ~( (uint64_t) 1 << bit_shift );
if( integer_value == 0 )
{
integer_value |= (uint64_t) 1 << bit_shift;
}
}
}
divider = 1;
while( ( integer_value / divider ) >= 10 )
{
divider *= 10;
number_of_characters += 1;
}
}
if( ( number_of_characters > utf32_string_size )
|| ( safe_utf32_string_index > ( utf32_string_size - number_of_characters ) ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
"%s: UTF-32 string size too small.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'f';
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'a';
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'l';
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 's';
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'e';
}
else
{
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 't';
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'r';
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'u';
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'e';
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0';
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'x';
}
bit_shift = (uint8_t) ( integer_value_size - 4 );
do
{
byte_value = (uint32_t) ( ( integer_value >> bit_shift ) & 0x0f );
if( byte_value <= 9 )
{
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + byte_value;
}
else
{
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'a' + byte_value - 10;
}
bit_shift -= 4;
}
while( bit_shift >= 0 );
}
else
{
if( is_signed != 0 )
{
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '-';
}
while( divider > 1 )
{
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + (uint32_t) ( integer_value / divider );
integer_value %= divider;
divider /= 10;
}
utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + (uint32_t) ( integer_value / divider );
}
utf32_string[ safe_utf32_string_index++ ] = 0;
*utf32_string_index = safe_utf32_string_index;
return( 1 );
}
/* Copies an UTF-32 encoded string to an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf32_string_copy_to_integer(
const uint32_t *utf32_string,
size_t utf32_string_length,
uint64_t *integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf32_string_copy_to_integer";
size_t utf32_string_index = 0;
if( libfvalue_utf32_string_with_index_copy_to_integer(
utf32_string,
utf32_string_length,
&utf32_string_index,
integer_value,
integer_value_size,
string_format_flags,
error ) != 1 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_COPY_FAILED,
"%s: unable to copy UTF-32 string to integer value.",
function );
return( -1 );
}
return( 1 );
}
/* Copies an UTF-32 encoded string to an integer value
* The integer value size is in bits
* Returns 1 if successful or -1 on error
*/
int libfvalue_utf32_string_with_index_copy_to_integer(
const uint32_t *utf32_string,
size_t utf32_string_length,
size_t *utf32_string_index,
uint64_t *integer_value,
size_t integer_value_size,
uint32_t string_format_flags,
libcerror_error_t **error )
{
static char *function = "libfvalue_utf32_string_with_index_copy_to_integer";
size_t maximum_string_index = 0;
size_t safe_utf32_string_index = 0;
uint64_t divider = 0;
uint64_t value_64bit = 0;
uint32_t character_value = 0;
uint32_t string_format_type = 0;
uint32_t supported_flags = 0;
uint8_t byte_value = 0;
int8_t bit_shift = 0;
int8_t sign = 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_length > (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( utf32_string_index == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid UTF-32 string index.",
function );
return( -1 );
}
if( *utf32_string_index >= utf32_string_length )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
"%s: invalid UTF-32 string index value out of bounds.",
function );
return( -1 );
}
safe_utf32_string_index = *utf32_string_index;
if( integer_value == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid integer value.",
function );
return( -1 );
}
if( ( integer_value_size != 8 )
&& ( integer_value_size != 16 )
&& ( integer_value_size != 32 )
&& ( integer_value_size != 64 ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported integer value size.",
function );
return( -1 );
}
supported_flags = 0x000000ffUL
| LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_UNSIGNED
| LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR;
if( ( string_format_flags & ~( supported_flags ) ) != 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format flags: 0x%08" PRIx32 ".",
function,
string_format_flags );
return( -1 );
}
string_format_type = string_format_flags & 0x000000ffUL;
if( ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_DECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
&& ( string_format_type != LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported string format type.",
function );
return( -1 );
}
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
if( integer_value == 0 )
{
maximum_string_index = 5;
}
else
{
maximum_string_index = 4;
}
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
maximum_string_index = (size_t) ( integer_value_size >> 2 );
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
maximum_string_index += 2;
}
}
else
{
/* The string is at least a single digit with an end of string character
*/
maximum_string_index = 2;
bit_shift = (uint8_t) ( integer_value_size - 1 );
divider = 1;
value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift );
while( ( value_64bit / divider ) >= 10 )
{
divider *= 10;
maximum_string_index += 1;
}
}
maximum_string_index += safe_utf32_string_index;
if( maximum_string_index > (size_t) SSIZE_MAX )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,
"%s: invalid maximum string index value exceeds maximum.",
function );
return( -1 );
}
value_64bit = 0;
if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_BOOLEAN )
{
/* TODO */
}
else if( string_format_type == LIBFVALUE_INTEGER_FORMAT_TYPE_HEXADECIMAL )
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_NO_BASE_INDICATOR ) == 0 )
{
character_value = utf32_string[ safe_utf32_string_index++ ];
if( character_value != (uint32_t) '0' )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x08%" PRIx32 " at index: %d.",
function,
character_value,
safe_utf32_string_index );
return( -1 );
}
character_value = utf32_string[ safe_utf32_string_index++ ];
if( character_value != (uint32_t) 'x' )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x08%" PRIx32 " at index: %d.",
function,
character_value,
safe_utf32_string_index );
return( -1 );
}
}
while( safe_utf32_string_index < utf32_string_length )
{
character_value = utf32_string[ safe_utf32_string_index ];
if( character_value == 0 )
{
break;
}
if( safe_utf32_string_index > (size_t) maximum_string_index )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE,
"%s: string too large.",
function );
return( -1 );
}
value_64bit <<= 4;
if( ( character_value >= (uint32_t) '0' )
&& ( character_value <= (uint32_t) '9' ) )
{
byte_value = (uint8_t) ( character_value - (uint32_t) '0' );
}
else if( ( character_value >= (uint32_t) 'A' )
&& ( character_value <= (uint32_t) 'F' ) )
{
byte_value = (uint8_t) ( character_value - (uint32_t) 'A' + 10 );
}
else if( ( character_value >= (uint32_t) 'a' )
&& ( character_value <= (uint32_t) 'f' ) )
{
byte_value = (uint8_t) ( character_value - (uint32_t) 'a' + 10 );
}
else
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x08%" PRIx32 " at index: %d.",
function,
character_value,
safe_utf32_string_index );
return( -1 );
}
value_64bit += byte_value;
safe_utf32_string_index++;
}
}
else
{
if( ( string_format_flags & LIBFVALUE_INTEGER_FORMAT_FLAG_SIGNED ) != 0 )
{
character_value = utf32_string[ safe_utf32_string_index ];
/* In the maximum possible string one character is substituted for the sign
*/
if( character_value == (uint32_t) '-' )
{
safe_utf32_string_index++;
sign = -1;
}
else if( character_value == (uint32_t) '+' )
{
safe_utf32_string_index++;
}
}
while( safe_utf32_string_index < utf32_string_length )
{
character_value = utf32_string[ safe_utf32_string_index ];
if( character_value == 0 )
{
break;
}
if( safe_utf32_string_index > (size_t) maximum_string_index )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE,
"%s: string too large.",
function );
return( -1 );
}
value_64bit *= 10;
if( ( character_value < (uint32_t) '0' )
|| ( character_value > (uint32_t) '9' ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE,
"%s: unsupported character value: 0x08%" PRIx32 " at index: %d.",
function,
character_value,
safe_utf32_string_index );
return( -1 );
}
character_value = (uint8_t) ( character_value - (uint32_t) '0' );
value_64bit += character_value;
safe_utf32_string_index++;
}
if( ( sign == -1 )
&& ( value_64bit != 0 ) )
{
value_64bit = ~( value_64bit - 1 );
}
}
*utf32_string_index = safe_utf32_string_index;
*integer_value = value_64bit;
return( 1 );
}