/* Creates a volume * ake sure the value volume is referencing, is set to NULL * Returns 1 if successful or -1 on error */ int libvshadow_volume_initialize( libvshadow_volume_t **volume, libcerror_error_t **error ) { libvshadow_internal_volume_t *internal_volume = NULL; static char *function = "libvshadow_volume_initialize"; if( volume == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid volume.", function ); return( -1 ); } if( *volume != NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, "%s: invalid volume value already set.", function ); return( -1 ); } internal_volume = memory_allocate_structure( libvshadow_internal_volume_t ); if( internal_volume == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_MEMORY, LIBCERROR_MEMORY_ERROR_INSUFFICIENT, "%s: unable to create volume.", function ); goto on_error; } if( memory_set( internal_volume, 0, sizeof( libvshadow_internal_volume_t ) ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_MEMORY, LIBCERROR_MEMORY_ERROR_SET_FAILED, "%s: unable to clear volume.", function ); memory_free( internal_volume ); return( -1 ); } if( libcdata_array_initialize( &( internal_volume->store_descriptors_array ), 0, error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED, "%s: unable to create store descriptors array.", function ); goto on_error; } if( libvshadow_io_handle_initialize( &( internal_volume->io_handle ), error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED, "%s: unable to create IO handle.", function ); goto on_error; } #if defined( HAVE_LIBVSHADOW_MULTI_THREAD_SUPPORT ) if( libcthreads_read_write_lock_initialize( &( internal_volume->read_write_lock ), error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED, "%s: unable to intialize read/write lock.", function ); goto on_error; } #endif *volume = (libvshadow_volume_t *) internal_volume; return( 1 ); on_error: if( internal_volume != NULL ) { if( internal_volume->store_descriptors_array != NULL ) { libcdata_array_free( &( internal_volume->store_descriptors_array ), (int (*)(intptr_t **, libcerror_error_t **)) &libvshadow_store_descriptor_free, NULL ); } memory_free( internal_volume ); } return( -1 ); }
/* Creates an array * Make sure the value array is referencing, is set to NULL * Returns 1 if successful or -1 on error */ int libcdata_array_initialize( libcdata_array_t **array, int number_of_entries, libcerror_error_t **error ) { libcdata_internal_array_t *internal_array = NULL; static char *function = "libcdata_array_initialize"; size_t entries_size = 0; int number_of_allocated_entries = 0; if( array == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid array.", function ); return( -1 ); } if( *array != NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, "%s: invalid array value already set.", function ); return( -1 ); } if( number_of_entries < 0 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_LESS_THAN_ZERO, "%s: invalid number of entries value less than zero.", function ); return( -1 ); } internal_array = memory_allocate_structure( libcdata_internal_array_t ); if( internal_array == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_MEMORY, LIBCERROR_MEMORY_ERROR_INSUFFICIENT, "%s: unable to create array.", function ); goto on_error; } if( memory_set( internal_array, 0, sizeof( libcdata_internal_array_t ) ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_MEMORY, LIBCERROR_MEMORY_ERROR_SET_FAILED, "%s: unable to clear array.", function ); memory_free( internal_array ); return( -1 ); } /* Pre-allocate in blocks of 16 entries */ number_of_allocated_entries = ( number_of_entries & ~( 15 ) ) + 16; #if SIZEOF_INT <= SIZEOF_SIZE_T if( (size_t) number_of_allocated_entries > (size_t) ( SSIZE_MAX / sizeof( intptr_t * ) ) ) #else if( number_of_allocated_entries > (int) ( SSIZE_MAX / sizeof( intptr_t * ) ) ) #endif { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid number of allocated entries value exceeds maximum.", function ); goto on_error; } entries_size = sizeof( intptr_t * ) * number_of_allocated_entries; if( entries_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid entries size value exceeds maximum.", function ); goto on_error; } internal_array->entries = (intptr_t **) memory_allocate( entries_size ); if( internal_array->entries == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_MEMORY, LIBCERROR_MEMORY_ERROR_INSUFFICIENT, "%s: unable to create array entries.", function ); goto on_error; } if( memory_set( internal_array->entries, 0, entries_size ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_MEMORY, LIBCERROR_MEMORY_ERROR_SET_FAILED, "%s: unable to clear array entries.", function ); goto on_error; } internal_array->number_of_allocated_entries = number_of_allocated_entries; internal_array->number_of_entries = number_of_entries; #if defined( HAVE_MULTI_THREAD_SUPPORT ) && !defined( HAVE_LOCAL_LIBCDATA ) if( libcthreads_read_write_lock_initialize( &( internal_array->read_write_lock ), error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED, "%s: unable to intialize read/write lock.", function ); goto on_error; } #endif *array = (libcdata_array_t *) internal_array; return( 1 ); on_error: if( internal_array != NULL ) { if( internal_array->entries != NULL ) { memory_free( internal_array->entries ); } memory_free( internal_array ); } return( -1 ); }
/* Creates a data chunk * Make sure the value data_chunk is referencing, is set to NULL * Returns 1 if successful or -1 on error */ int libewf_data_chunk_initialize( libewf_data_chunk_t **data_chunk, libewf_io_handle_t *io_handle, libewf_write_io_handle_t *write_io_handle, libcerror_error_t **error ) { libewf_internal_data_chunk_t *internal_data_chunk = NULL; static char *function = "libewf_data_chunk_initialize"; if( data_chunk == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid data chunk.", function ); return( -1 ); } if( *data_chunk != NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, "%s: invalid data chunk value already set.", function ); return( -1 ); } if( io_handle == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid IO handle.", function ); return( -1 ); } internal_data_chunk = memory_allocate_structure( libewf_internal_data_chunk_t ); if( internal_data_chunk == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED, "%s: unable to create data chunk.", function ); goto on_error; } if( memory_set( internal_data_chunk, 0, sizeof( libewf_internal_data_chunk_t ) ) == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_MEMORY, LIBCERROR_MEMORY_ERROR_SET_FAILED, "%s: unable to clear data chunk.", function ); memory_free( internal_data_chunk ); return( -1 ); } #if defined( HAVE_LIBEWF_MULTI_THREAD_SUPPORT ) if( libcthreads_read_write_lock_initialize( &( internal_data_chunk->read_write_lock ), error ) != 1 ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_RUNTIME, LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED, "%s: unable to initialize read/write lock.", function ); goto on_error; } #endif internal_data_chunk->io_handle = io_handle; internal_data_chunk->write_io_handle = write_io_handle; *data_chunk = (libewf_data_chunk_t *) internal_data_chunk; return( 1 ); on_error: if( internal_data_chunk != NULL ) { memory_free( internal_data_chunk ); } return( -1 ); }