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/*
* Character string functions
*
* Copyright (C) 2009-2018, Joachim Metz <joachim.metz@gmail.com>
*
* 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 <types.h>
#include "esedbtools_libcerror.h"
/* Copies a string of a decimal value from a 64-bit value
* Returns 1 if successful or -1 on error
*/
int esedbtools_system_string_copy_from_64_bit_in_decimal(
system_character_t *string,
size_t string_size,
size_t *string_index,
uint64_t value_64bit,
libcerror_error_t **error )
{
static char *function = "esedbtools_system_string_copy_from_64_bit_in_decimal";
uint64_t divider = 0;
uint8_t number_of_characters = 0;
if( string == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid string.",
function );
return( -1 );
}
if( string_size > (size_t) SSIZE_MAX )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
"%s: invalid string size value exceeds maximum.",
function );
return( -1 );
}
if( string_index == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid string index.",
function );
return( -1 );
}
if( *string_index >= string_size )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS,
"%s: invalid string index value out of bounds.",
function );
return( -1 );
}
divider = 1;
number_of_characters = 1;
while( ( value_64bit / divider ) >= 10 )
{
divider *= 10;
number_of_characters += 1;
}
if( ( *string_index + number_of_characters ) >= string_size )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
"%s: string size too small.",
function );
return( -1 );
}
while( divider > 1 )
{
string[ *string_index ] = (uint8_t) '0' + (uint8_t) ( value_64bit / divider );
*string_index += 1;
value_64bit %= divider;
divider /= 10;
}
string[ *string_index ] = (uint8_t) '0' + (uint8_t) ( value_64bit / divider );
*string_index += 1;
return( 1 );
}
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