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/*
* Allocation table functions
*
* Copyright (C) 2008-2018, 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 <memory.h>
#include <types.h>
#include "libolecf_allocation_table.h"
#include "libolecf_libcerror.h"
/* Creates an allocation table
* Make sure the value allocation_table is referencing, is set to NULL
* Returns 1 if successful or -1 on error
*/
int libolecf_allocation_table_initialize(
libolecf_allocation_table_t **allocation_table,
int number_of_sector_identifiers,
libcerror_error_t **error )
{
static char *function = "libolecf_allocation_table_initialize";
size_t sector_identifiers_size = 0;
if( allocation_table == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid allocation table.",
function );
return( -1 );
}
if( *allocation_table != NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
"%s: invalid allocation table value already set.",
function );
return( -1 );
}
if( number_of_sector_identifiers < 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_LESS_THAN_ZERO,
"%s: invalid number of sector identifiers value less than zero.",
function );
return( -1 );
}
if( (size_t) number_of_sector_identifiers > (size_t) ( SSIZE_MAX / sizeof( uint32_t ) ) )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
"%s: invalid number of sector identifers value exceeds maximum.",
function );
goto on_error;
}
*allocation_table = memory_allocate_structure(
libolecf_allocation_table_t );
if( *allocation_table == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
"%s: unable to create allocation table.",
function );
goto on_error;
}
if( memory_set(
*allocation_table,
0,
sizeof( libolecf_allocation_table_t ) ) == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_SET_FAILED,
"%s: unable to clear allocation table.",
function );
memory_free(
*allocation_table );
*allocation_table = NULL;
return( -1 );
}
if( number_of_sector_identifiers > 0 )
{
sector_identifiers_size = number_of_sector_identifiers * sizeof( uint32_t );
if( sector_identifiers_size > (size_t) SSIZE_MAX )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,
"%s: invalid sector identifiers size value exceeds maximum.",
function );
goto on_error;
}
( *allocation_table )->sector_identifier = (uint32_t *) memory_allocate(
sector_identifiers_size );
if( ( *allocation_table )->sector_identifier == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
"%s: unable to create sector identifiers.",
function );
goto on_error;
}
if( memory_set(
( *allocation_table )->sector_identifier,
0,
sector_identifiers_size ) == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_SET_FAILED,
"%s: unable to clear sector identifiers.",
function );
goto on_error;
}
( *allocation_table )->number_of_sector_identifiers = number_of_sector_identifiers;
}
return( 1 );
on_error:
if( *allocation_table != NULL )
{
if( ( *allocation_table )->sector_identifier != NULL )
{
memory_free(
( *allocation_table )->sector_identifier );
}
memory_free(
*allocation_table );
*allocation_table = NULL;
}
return( -1 );
}
/* Frees an allocation table
* Returns 1 if successful or -1 on error
*/
int libolecf_allocation_table_free(
libolecf_allocation_table_t **allocation_table,
libcerror_error_t **error )
{
static char *function = "libolecf_allocation_table_free";
if( allocation_table == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid allocation_table.",
function );
return( -1 );
}
if( *allocation_table != NULL )
{
if( ( *allocation_table )->sector_identifier != NULL )
{
memory_free(
( *allocation_table )->sector_identifier );
}
memory_free(
*allocation_table );
*allocation_table = NULL;
}
return( 1 );
}
/* Resizes an allocation_table
* Returns 1 if successful or -1 on error
*/
int libolecf_allocation_table_resize(
libolecf_allocation_table_t *allocation_table,
int number_of_sector_identifiers,
libcerror_error_t **error )
{
void *reallocation = NULL;
static char *function = "libolecf_allocation_table_resize";
size_t sector_identifiers_size = 0;
if( allocation_table == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
"%s: invalid allocation_table.",
function );
return( -1 );
}
if( number_of_sector_identifiers < 0 )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
LIBCERROR_ARGUMENT_ERROR_VALUE_LESS_THAN_ZERO,
"%s: invalid number of sector identifiers value less than zero.",
function );
return( -1 );
}
if( allocation_table->number_of_sector_identifiers < number_of_sector_identifiers )
{
sector_identifiers_size = sizeof( uint32_t ) * number_of_sector_identifiers;
if( sector_identifiers_size > (size_t) SSIZE_MAX )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_RUNTIME,
LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM,
"%s: invalid sector identifiers size value exceeds maximum.",
function );
return( -1 );
}
reallocation = memory_reallocate(
allocation_table->sector_identifier,
sector_identifiers_size );
if( reallocation == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
"%s: unable to resize sector identifiers.",
function );
return( -1 );
}
allocation_table->sector_identifier = (uint32_t *) reallocation;
allocation_table->number_of_sector_identifiers = number_of_sector_identifiers;
if( memory_set(
allocation_table->sector_identifier,
0,
sizeof( uint32_t ) * ( number_of_sector_identifiers - allocation_table->number_of_sector_identifiers ) ) == NULL )
{
libcerror_error_set(
error,
LIBCERROR_ERROR_DOMAIN_MEMORY,
LIBCERROR_MEMORY_ERROR_SET_FAILED,
"%s: unable to clear sector identifiers.",
function );
return( -1 );
}
}
return( 1 );
}
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