/src/libqcow/libqcow/libqcow_io_handle.c

Source
/*
 * Input/Output (IO) handle functions
 *
 * Copyright (C) 2010-2025, 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 "libqcow_cluster_block.h"
#include "libqcow_cluster_table.h"
#include "libqcow_encryption.h"
#include "libqcow_file_header.h"
#include "libqcow_io_handle.h"
#include "libqcow_libbfio.h"
#include "libqcow_libcerror.h"
#include "libqcow_libcnotify.h"
#include "libqcow_libfdata.h"
#include "libqcow_unused.h"

#include "qcow_file_header.h"

const uint8_t qcow_file_signature[ 4 ] = { 0x51, 0x46, 0x49, 0xfb };

/* Creates an IO handle
 * Make sure the value io_handle is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libqcow_io_handle_initialize(
     libqcow_io_handle_t **io_handle,
     libcerror_error_t **error )
{
  static char *function = "libqcow_io_handle_initialize";

  if( io_handle == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid IO handle.",
     function );

    return( -1 );
  }
  if( *io_handle != NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
     "%s: invalid IO handle value already set.",
     function );

    return( -1 );
  }
  *io_handle = memory_allocate_structure(
                libqcow_io_handle_t );

  if( *io_handle == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create IO handle.",
     function );

    goto on_error;
  }
  if( memory_set(
       *io_handle,
       0,
       sizeof( libqcow_io_handle_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear IO handle.",
     function );

    goto on_error;
  }
  return( 1 );

on_error:
  if( *io_handle != NULL )
  {
    memory_free(
     *io_handle );

    *io_handle = NULL;
  }
  return( -1 );
}

/* Frees an IO handle
 * Returns 1 if successful or -1 on error
 */
int libqcow_io_handle_free(
     libqcow_io_handle_t **io_handle,
     libcerror_error_t **error )
{
  static char *function = "libqcow_io_handle_free";
  int result            = 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 );
  }
  if( *io_handle != NULL )
  {
    if( libqcow_io_handle_clear(
         *io_handle,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to clear IO handle.",
       function );

      result = -1;
    }
    memory_free(
     *io_handle );

    *io_handle = NULL;
  }
  return( result );
}

/* Clears the IO handle
 * Returns 1 if successful or -1 on error
 */
int libqcow_io_handle_clear(
     libqcow_io_handle_t *io_handle,
     libcerror_error_t **error )
{
  static char *function = "libqcow_io_handle_clear";

  if( io_handle == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid IO handle.",
     function );

    return( -1 );
  }
  if( memory_set(
       io_handle,
       0,
       sizeof( libqcow_io_handle_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear IO handle.",
     function );

    return( -1 );
  }
  return( 1 );
}

/* Reads a level 2 table
 * Callback function for the level 2 table vector
 * Returns 1 if successful or -1 on error
 */
int libqcow_io_handle_read_level2_table(
     intptr_t *data_handle LIBQCOW_ATTRIBUTE_UNUSED,
     libbfio_handle_t *file_io_handle,
     libfdata_vector_t *vector,
     libfdata_cache_t *cache,
     int element_index,
     int element_data_file_index LIBQCOW_ATTRIBUTE_UNUSED,
     off64_t element_data_offset,
     size64_t element_data_size,
     uint32_t element_data_flags LIBQCOW_ATTRIBUTE_UNUSED,
     uint8_t read_flags LIBQCOW_ATTRIBUTE_UNUSED,
     libcerror_error_t **error )
{
  libqcow_cluster_table_t *level2_table = NULL;
  static char *function                 = "libqcow_io_handle_read_level2_table";

  LIBQCOW_UNREFERENCED_PARAMETER( data_handle );
  LIBQCOW_UNREFERENCED_PARAMETER( element_data_file_index );
  LIBQCOW_UNREFERENCED_PARAMETER( element_data_flags );
  LIBQCOW_UNREFERENCED_PARAMETER( read_flags );

  if( element_data_size > (size64_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid element data size value exceeds maximum.",
     function );

    return( -1 );
  }
  if( libqcow_cluster_table_initialize(
       &level2_table,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create level 2 table.",
     function );

    goto on_error;
  }
  if( libqcow_cluster_table_read(
       level2_table,
       file_io_handle,
       element_data_offset,
       (size_t) element_data_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read level 2 table.",
     function );

    goto on_error;
  }
  if( libfdata_vector_set_element_value_by_index(
       vector,
       (intptr_t *) file_io_handle,
       cache,
       element_index,
       (intptr_t *) level2_table,
       (int (*)(intptr_t **, libcerror_error_t **)) &libqcow_cluster_table_free,
       LIBFDATA_VECTOR_ELEMENT_VALUE_FLAG_MANAGED,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to set level 2 table as element value.",
     function );

    goto on_error;
  }
  return( 1 );

on_error:
  if( level2_table != NULL )
  {
    libqcow_cluster_table_free(
     &level2_table,
     NULL );
  }
  return( -1 );
}

/* Reads a cluster block
 * Callback function for the cluster block vector
 * Returns 1 if successful or -1 on error
 */
int libqcow_io_handle_read_cluster_block(
     intptr_t *data_handle LIBQCOW_ATTRIBUTE_UNUSED,
     libbfio_handle_t *file_io_handle,
     libfdata_vector_t *vector,
     libfdata_cache_t *cache,
     int element_index,
     int element_data_file_index LIBQCOW_ATTRIBUTE_UNUSED,
     off64_t element_data_offset,
     size64_t element_data_size,
     uint32_t element_data_flags LIBQCOW_ATTRIBUTE_UNUSED,
     uint8_t read_flags LIBQCOW_ATTRIBUTE_UNUSED,
     libcerror_error_t **error )
{
  libqcow_cluster_block_t *cluster_block = NULL;
  static char *function                  = "libqcow_io_handle_read_cluster_block";

  LIBQCOW_UNREFERENCED_PARAMETER( data_handle );
  LIBQCOW_UNREFERENCED_PARAMETER( element_data_file_index );
  LIBQCOW_UNREFERENCED_PARAMETER( element_data_flags );
  LIBQCOW_UNREFERENCED_PARAMETER( read_flags );

  if( element_data_size > (size64_t) SSIZE_MAX )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
     "%s: invalid element data size value exceeds maximum.",
     function );

    goto on_error;
  }
  if( libqcow_cluster_block_initialize(
       &cluster_block,
       (size_t) element_data_size,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create cluster block.",
     function );

    goto on_error;
  }
  if( libqcow_cluster_block_read(
       cluster_block,
       file_io_handle,
             element_data_offset,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read cluster block.",
     function );

    goto on_error;
  }
  if( libfdata_vector_set_element_value_by_index(
       vector,
       (intptr_t *) file_io_handle,
       cache,
       element_index,
       (intptr_t *) cluster_block,
       (int (*)(intptr_t **, libcerror_error_t **)) &libqcow_cluster_block_free,
       LIBFDATA_VECTOR_ELEMENT_VALUE_FLAG_MANAGED,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to set cluster block as element value.",
     function );

    goto on_error;
  }
  return( 1 );

on_error:
  if( cluster_block != NULL )
  {
    libqcow_cluster_block_free(
     &cluster_block,
     NULL );
  }
  return( -1 );
}


Coverage Report

Created: 2026-01-20 07:11

Line	Count	Source
1		/*
2		* Input/Output (IO) handle functions
3		*
4		* Copyright (C) 2010-2025, Joachim Metz <joachim.metz@gmail.com>
5		*
6		* Refer to AUTHORS for acknowledgements.
7		*
8		* This program is free software: you can redistribute it and/or modify
9		* it under the terms of the GNU Lesser General Public License as published by
10		* the Free Software Foundation, either version 3 of the License, or
11		* (at your option) any later version.
12		*
13		* This program is distributed in the hope that it will be useful,
14		* but WITHOUT ANY WARRANTY; without even the implied warranty of
15		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16		* GNU General Public License for more details.
17		*
18		* You should have received a copy of the GNU Lesser General Public License
19		* along with this program. If not, see <https://www.gnu.org/licenses/>.
20		*/
21
22		#include <common.h>
23		#include <byte_stream.h>
24		#include <memory.h>
25		#include <types.h>
26
27		#include "libqcow_cluster_block.h"
28		#include "libqcow_cluster_table.h"
29		#include "libqcow_encryption.h"
30		#include "libqcow_file_header.h"
31		#include "libqcow_io_handle.h"
32		#include "libqcow_libbfio.h"
33		#include "libqcow_libcerror.h"
34		#include "libqcow_libcnotify.h"
35		#include "libqcow_libfdata.h"
36		#include "libqcow_unused.h"
37
38		#include "qcow_file_header.h"
39
40		const uint8_t qcow_file_signature[ 4 ] = { 0x51, 0x46, 0x49, 0xfb };
41
42		/* Creates an IO handle
43		* Make sure the value io_handle is referencing, is set to NULL
44		* Returns 1 if successful or -1 on error
45		*/
46		int libqcow_io_handle_initialize(
47		libqcow_io_handle_t **io_handle,
48		libcerror_error_t **error )
49	925	{
50	925	static char *function = "libqcow_io_handle_initialize";
51
52	925	if( io_handle == NULL )
53	0	{
54	0	libcerror_error_set(
55	0	error,
56	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
57	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
58	0	"%s: invalid IO handle.",
59	0	function );
60
61	0	return( -1 );
62	0	}
63	925	if( *io_handle != NULL )
64	0	{
65	0	libcerror_error_set(
66	0	error,
67	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
68	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
69	0	"%s: invalid IO handle value already set.",
70	0	function );
71
72	0	return( -1 );
73	0	}
74	925	*io_handle = memory_allocate_structure(
75	925	libqcow_io_handle_t );
76
77	925	if( *io_handle == NULL )
78	0	{
79	0	libcerror_error_set(
80	0	error,
81	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
82	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
83	0	"%s: unable to create IO handle.",
84	0	function );
85
86	0	goto on_error;
87	0	}
88	925	if( memory_set(
89	925	*io_handle,
90	925	0,
91	925	sizeof( libqcow_io_handle_t ) ) == NULL )
92	0	{
93	0	libcerror_error_set(
94	0	error,
95	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
96	0	LIBCERROR_MEMORY_ERROR_SET_FAILED,
97	0	"%s: unable to clear IO handle.",
98	0	function );
99
100	0	goto on_error;
101	0	}
102	925	return( 1 );
103
104	0	on_error:
105	0	if( *io_handle != NULL )
106	0	{
107	0	memory_free(
108	0	*io_handle );
109
110	0	*io_handle = NULL;
111	0	}
112	0	return( -1 );
113	925	}
114
115		/* Frees an IO handle
116		* Returns 1 if successful or -1 on error
117		*/
118		int libqcow_io_handle_free(
119		libqcow_io_handle_t **io_handle,
120		libcerror_error_t **error )
121	925	{
122	925	static char *function = "libqcow_io_handle_free";
123	925	int result = 1;
124
125	925	if( io_handle == NULL )
126	0	{
127	0	libcerror_error_set(
128	0	error,
129	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
130	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
131	0	"%s: invalid IO handle.",
132	0	function );
133
134	0	return( -1 );
135	0	}
136	925	if( *io_handle != NULL )
137	925	{
138	925	if( libqcow_io_handle_clear(
139	925	*io_handle,
140	925	error ) != 1 )
141	0	{
142	0	libcerror_error_set(
143	0	error,
144	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
145	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
146	0	"%s: unable to clear IO handle.",
147	0	function );
148
149	0	result = -1;
150	0	}
151	925	memory_free(
152	925	*io_handle );
153
154	925	*io_handle = NULL;
155	925	}
156	925	return( result );
157	925	}
158
159		/* Clears the IO handle
160		* Returns 1 if successful or -1 on error
161		*/
162		int libqcow_io_handle_clear(
163		libqcow_io_handle_t *io_handle,
164		libcerror_error_t **error )
165	969	{
166	969	static char *function = "libqcow_io_handle_clear";
167
168	969	if( io_handle == NULL )
169	0	{
170	0	libcerror_error_set(
171	0	error,
172	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
173	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
174	0	"%s: invalid IO handle.",
175	0	function );
176
177	0	return( -1 );
178	0	}
179	969	if( memory_set(
180	969	io_handle,
181	969	0,
182	969	sizeof( libqcow_io_handle_t ) ) == NULL )
183	0	{
184	0	libcerror_error_set(
185	0	error,
186	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
187	0	LIBCERROR_MEMORY_ERROR_SET_FAILED,
188	0	"%s: unable to clear IO handle.",
189	0	function );
190
191	0	return( -1 );
192	0	}
193	969	return( 1 );
194	969	}
195
196		/* Reads a level 2 table
197		* Callback function for the level 2 table vector
198		* Returns 1 if successful or -1 on error
199		*/
200		int libqcow_io_handle_read_level2_table(
201		intptr_t *data_handle LIBQCOW_ATTRIBUTE_UNUSED,
202		libbfio_handle_t *file_io_handle,
203		libfdata_vector_t *vector,
204		libfdata_cache_t *cache,
205		int element_index,
206		int element_data_file_index LIBQCOW_ATTRIBUTE_UNUSED,
207		off64_t element_data_offset,
208		size64_t element_data_size,
209		uint32_t element_data_flags LIBQCOW_ATTRIBUTE_UNUSED,
210		uint8_t read_flags LIBQCOW_ATTRIBUTE_UNUSED,
211		libcerror_error_t **error )
212	0	{
213	0	libqcow_cluster_table_t *level2_table = NULL;
214	0	static char *function = "libqcow_io_handle_read_level2_table";
215
216	0	LIBQCOW_UNREFERENCED_PARAMETER( data_handle );
217	0	LIBQCOW_UNREFERENCED_PARAMETER( element_data_file_index );
218	0	LIBQCOW_UNREFERENCED_PARAMETER( element_data_flags );
219	0	LIBQCOW_UNREFERENCED_PARAMETER( read_flags );
220
221	0	if( element_data_size > (size64_t) SSIZE_MAX )
222	0	{
223	0	libcerror_error_set(
224	0	error,
225	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
226	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
227	0	"%s: invalid element data size value exceeds maximum.",
228	0	function );
229
230	0	return( -1 );
231	0	}
232	0	if( libqcow_cluster_table_initialize(
233	0	&level2_table,
234	0	error ) != 1 )
235	0	{
236	0	libcerror_error_set(
237	0	error,
238	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
239	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
240	0	"%s: unable to create level 2 table.",
241	0	function );
242
243	0	goto on_error;
244	0	}
245	0	if( libqcow_cluster_table_read(
246	0	level2_table,
247	0	file_io_handle,
248	0	element_data_offset,
249	0	(size_t) element_data_size,
250	0	error ) != 1 )
251	0	{
252	0	libcerror_error_set(
253	0	error,
254	0	LIBCERROR_ERROR_DOMAIN_IO,
255	0	LIBCERROR_IO_ERROR_READ_FAILED,
256	0	"%s: unable to read level 2 table.",
257	0	function );
258
259	0	goto on_error;
260	0	}
261	0	if( libfdata_vector_set_element_value_by_index(
262	0	vector,
263	0	(intptr_t *) file_io_handle,
264	0	cache,
265	0	element_index,
266	0	(intptr_t *) level2_table,
267	0	(int ()(intptr_t , libcerror_error_t *)) &libqcow_cluster_table_free,
268	0	LIBFDATA_VECTOR_ELEMENT_VALUE_FLAG_MANAGED,
269	0	error ) != 1 )
270	0	{
271	0	libcerror_error_set(
272	0	error,
273	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
274	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
275	0	"%s: unable to set level 2 table as element value.",
276	0	function );
277
278	0	goto on_error;
279	0	}
280	0	return( 1 );
281
282	0	on_error:
283	0	if( level2_table != NULL )
284	0	{
285	0	libqcow_cluster_table_free(
286	0	&level2_table,
287	0	NULL );
288	0	}
289	0	return( -1 );
290	0	}
291
292		/* Reads a cluster block
293		* Callback function for the cluster block vector
294		* Returns 1 if successful or -1 on error
295		*/
296		int libqcow_io_handle_read_cluster_block(
297		intptr_t *data_handle LIBQCOW_ATTRIBUTE_UNUSED,
298		libbfio_handle_t *file_io_handle,
299		libfdata_vector_t *vector,
300		libfdata_cache_t *cache,
301		int element_index,
302		int element_data_file_index LIBQCOW_ATTRIBUTE_UNUSED,
303		off64_t element_data_offset,
304		size64_t element_data_size,
305		uint32_t element_data_flags LIBQCOW_ATTRIBUTE_UNUSED,
306		uint8_t read_flags LIBQCOW_ATTRIBUTE_UNUSED,
307		libcerror_error_t **error )
308	0	{
309	0	libqcow_cluster_block_t *cluster_block = NULL;
310	0	static char *function = "libqcow_io_handle_read_cluster_block";
311
312	0	LIBQCOW_UNREFERENCED_PARAMETER( data_handle );
313	0	LIBQCOW_UNREFERENCED_PARAMETER( element_data_file_index );
314	0	LIBQCOW_UNREFERENCED_PARAMETER( element_data_flags );
315	0	LIBQCOW_UNREFERENCED_PARAMETER( read_flags );
316
317	0	if( element_data_size > (size64_t) SSIZE_MAX )
318	0	{
319	0	libcerror_error_set(
320	0	error,
321	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
322	0	LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
323	0	"%s: invalid element data size value exceeds maximum.",
324	0	function );
325
326	0	goto on_error;
327	0	}
328	0	if( libqcow_cluster_block_initialize(
329	0	&cluster_block,
330	0	(size_t) element_data_size,
331	0	error ) != 1 )
332	0	{
333	0	libcerror_error_set(
334	0	error,
335	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
336	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
337	0	"%s: unable to create cluster block.",
338	0	function );
339
340	0	goto on_error;
341	0	}
342	0	if( libqcow_cluster_block_read(
343	0	cluster_block,
344	0	file_io_handle,
345	0	element_data_offset,
346	0	error ) != 1 )
347	0	{
348	0	libcerror_error_set(
349	0	error,
350	0	LIBCERROR_ERROR_DOMAIN_IO,
351	0	LIBCERROR_IO_ERROR_READ_FAILED,
352	0	"%s: unable to read cluster block.",
353	0	function );
354
355	0	goto on_error;
356	0	}
357	0	if( libfdata_vector_set_element_value_by_index(
358	0	vector,
359	0	(intptr_t *) file_io_handle,
360	0	cache,
361	0	element_index,
362	0	(intptr_t *) cluster_block,
363	0	(int ()(intptr_t , libcerror_error_t *)) &libqcow_cluster_block_free,
364	0	LIBFDATA_VECTOR_ELEMENT_VALUE_FLAG_MANAGED,
365	0	error ) != 1 )
366	0	{
367	0	libcerror_error_set(
368	0	error,
369	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
370	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
371	0	"%s: unable to set cluster block as element value.",
372	0	function );
373
374	0	goto on_error;
375	0	}
376	0	return( 1 );
377
378	0	on_error:
379	0	if( cluster_block != NULL )
380	0	{
381	0	libqcow_cluster_block_free(
382	0	&cluster_block,
383		NULL );
384	0	}
385	0	return( -1 );
386	0	}
387