/src/libvhdi/libvhdi/libvhdi_metadata_table.c

Source
/*
 * Metadata table functions
 *
 * Copyright (C) 2012-2025, 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 <memory.h>
#include <types.h>

#include "libvhdi_libbfio.h"
#include "libvhdi_libcdata.h"
#include "libvhdi_libcerror.h"
#include "libvhdi_libcnotify.h"
#include "libvhdi_metadata_table.h"
#include "libvhdi_metadata_table_entry.h"
#include "libvhdi_metadata_table_header.h"

#include "vhdi_metadata_table.h"

/* Creates metadata table
 * Make sure the value metadata_table is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libvhdi_metadata_table_initialize(
     libvhdi_metadata_table_t **metadata_table,
     libcerror_error_t **error )
{
  static char *function = "libvhdi_metadata_table_initialize";

  if( metadata_table == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid metadata table.",
     function );

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

    return( -1 );
  }
  *metadata_table = memory_allocate_structure(
                     libvhdi_metadata_table_t );

  if( *metadata_table == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create metadata table.",
     function );

    goto on_error;
  }
  if( memory_set(
       *metadata_table,
       0,
       sizeof( libvhdi_metadata_table_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear metadata table.",
     function );

    memory_free(
     *metadata_table );

    *metadata_table = NULL;

    return( -1 );
  }
  if( libcdata_array_initialize(
       &( ( *metadata_table )->entries_array ),
       0,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create entries array.",
     function );

    goto on_error;
  }
  return( 1 );

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

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

/* Frees metadata table
 * Returns 1 if successful or -1 on error
 */
int libvhdi_metadata_table_free(
     libvhdi_metadata_table_t **metadata_table,
     libcerror_error_t **error )
{
  static char *function = "libvhdi_metadata_table_free";
  int result            = 1;

  if( metadata_table == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid metadata table.",
     function );

    return( -1 );
  }
  if( *metadata_table != NULL )
  {
    if( ( *metadata_table )->header != NULL )
    {
      if( libvhdi_metadata_table_header_free(
           &( ( *metadata_table )->header ),
           error ) != 1 )
      {
        libcerror_error_set(
         error,
         LIBCERROR_ERROR_DOMAIN_RUNTIME,
         LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
         "%s: unable to free header.",
         function );

        result = -1;
      }
    }
    if( libcdata_array_free(
         &( ( *metadata_table )->entries_array ),
         (int (*)(intptr_t **, libcerror_error_t **)) &libvhdi_metadata_table_entry_free,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free entries array.",
       function );

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

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

/* Reads the metadata table
 * Returns 1 if successful or -1 on error
 */
int libvhdi_metadata_table_read_file_io_handle(
     libvhdi_metadata_table_t *metadata_table,
     libbfio_handle_t *file_io_handle,
     off64_t file_offset,
     libcerror_error_t **error )
{
  libvhdi_metadata_table_entry_t *metadata_table_entry = NULL;
  uint8_t *data                                        = NULL;
  static char *function                                = "libvhdi_metadata_table_read_file_io_handle";
  size_t data_offset                                   = 0;
  size_t data_size                                     = 64 * 1024;
  ssize_t read_count                                   = 0;
  uint32_t metadata_table_entry_index                  = 0;
  int entry_index                                      = 0;

  if( metadata_table == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid metadata table.",
     function );

    return( -1 );
  }
  if( metadata_table->header != NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
     "%s: invalid metadata table - header already set.",
     function );

    return( -1 );
  }
#if defined( HAVE_DEBUG_OUTPUT )
  if( libcnotify_verbose != 0 )
  {
    libcnotify_printf(
     "%s: reading metadata table at offset: %" PRIi64 " (0x%08" PRIx64 ").\n",
     function,
     file_offset,
     file_offset );
  }
#endif
  data = (uint8_t *) memory_allocate(
                      sizeof( uint8_t ) * data_size );

  if( data == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create metadata table data.",
     function );

    goto on_error;
  }
  read_count = libbfio_handle_read_buffer_at_offset(
                file_io_handle,
                data,
                data_size,
                file_offset,
                error );

  if( read_count != (ssize_t) data_size )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read metadata table data at offset: %" PRIi64 " (0x%08" PRIx64 ").",
     function,
     file_offset,
     file_offset );

    goto on_error;
  }
  if( libvhdi_metadata_table_header_initialize(
       &( metadata_table->header ),
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create header.",
     function );

    goto on_error;
  }
  if( libvhdi_metadata_table_header_read_data(
       metadata_table->header,
       data,
       sizeof( vhdi_metadata_table_header_t ),
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read metadata table header.",
     function );

    goto on_error;
  }
  data_offset = sizeof( vhdi_metadata_table_header_t );

  for( metadata_table_entry_index = 0;
       metadata_table_entry_index < metadata_table->header->number_of_entries;
       metadata_table_entry_index++ )
  {
    if( libvhdi_metadata_table_entry_initialize(
         &metadata_table_entry,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
       "%s: unable to create entry.",
       function );

      goto on_error;
    }
    if( libvhdi_metadata_table_entry_read_data(
         metadata_table_entry,
         &( data[ data_offset ] ),
         sizeof( vhdi_metadata_table_entry_t ),
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_IO,
       LIBCERROR_IO_ERROR_READ_FAILED,
       "%s: unable to read metadata table entry.",
       function );

      goto on_error;
    }
    data_offset += sizeof( vhdi_metadata_table_entry_t );

    if( libcdata_array_append_entry(
         metadata_table->entries_array,
         &entry_index,
         (intptr_t *) metadata_table_entry,
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
       "%s: unable to append metadata table entry to entries array.",
       function );

      goto on_error;
    }
    metadata_table_entry = NULL;
  }
  memory_free(
   data );

  return( 1 );

on_error:
  if( metadata_table_entry != NULL )
  {
    libvhdi_metadata_table_entry_free(
     &metadata_table_entry,
     NULL );
  }
  if( metadata_table->header != NULL )
  {
    libvhdi_metadata_table_header_free(
     &( metadata_table->header ),
     NULL );
  }
  if( data != NULL )
  {
    memory_free(
     data );
  }
  libcdata_array_empty(
   metadata_table->entries_array,
   (int (*)(intptr_t **, libcerror_error_t **)) &libvhdi_metadata_table_entry_free,
   NULL );

  return( -1 );
}

/* Retrieves the number of entries
 * Returns 1 if successful or -1 on error
 */
int libvhdi_metadata_table_get_number_of_entries(
     libvhdi_metadata_table_t *metadata_table,
     int *number_of_entries,
     libcerror_error_t **error )
{
  static char *function = "libvhdi_metadata_table_get_number_of_entries";

  if( metadata_table == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid metadata table.",
     function );

    return( -1 );
  }
  if( libcdata_array_get_number_of_entries(
       metadata_table->entries_array,
       number_of_entries,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve number of entries from array.",
     function );

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

/* Retrieves a specific entry
 * Returns 1 if successful or -1 on error
 */
int libvhdi_metadata_table_get_entry_by_index(
     libvhdi_metadata_table_t *metadata_table,
     int entry_index,
     libvhdi_metadata_table_entry_t **entry,
     libcerror_error_t **error )
{
  static char *function = "libvhdi_metadata_table_get_entry_by_index";

  if( metadata_table == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid metadata table.",
     function );

    return( -1 );
  }
  if( libcdata_array_get_entry_by_index(
       metadata_table->entries_array,
       entry_index,
       (intptr_t **) entry,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_GET_FAILED,
     "%s: unable to retrieve entry: %d from array.",
     function,
     entry_index );

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


Coverage Report

Created: 2026-01-20 07:11

Line	Count	Source
1		/*
2		* Metadata table functions
3		*
4		* Copyright (C) 2012-2025, 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 <memory.h>
24		#include <types.h>
25
26		#include "libvhdi_libbfio.h"
27		#include "libvhdi_libcdata.h"
28		#include "libvhdi_libcerror.h"
29		#include "libvhdi_libcnotify.h"
30		#include "libvhdi_metadata_table.h"
31		#include "libvhdi_metadata_table_entry.h"
32		#include "libvhdi_metadata_table_header.h"
33
34		#include "vhdi_metadata_table.h"
35
36		/* Creates metadata table
37		* Make sure the value metadata_table is referencing, is set to NULL
38		* Returns 1 if successful or -1 on error
39		*/
40		int libvhdi_metadata_table_initialize(
41		libvhdi_metadata_table_t **metadata_table,
42		libcerror_error_t **error )
43	524	{
44	524	static char *function = "libvhdi_metadata_table_initialize";
45
46	524	if( metadata_table == NULL )
47	0	{
48	0	libcerror_error_set(
49	0	error,
50	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
51	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
52	0	"%s: invalid metadata table.",
53	0	function );
54
55	0	return( -1 );
56	0	}
57	524	if( *metadata_table != NULL )
58	0	{
59	0	libcerror_error_set(
60	0	error,
61	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
62	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
63	0	"%s: invalid metadata table value already set.",
64	0	function );
65
66	0	return( -1 );
67	0	}
68	524	*metadata_table = memory_allocate_structure(
69	524	libvhdi_metadata_table_t );
70
71	524	if( *metadata_table == NULL )
72	0	{
73	0	libcerror_error_set(
74	0	error,
75	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
76	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
77	0	"%s: unable to create metadata table.",
78	0	function );
79
80	0	goto on_error;
81	0	}
82	524	if( memory_set(
83	524	*metadata_table,
84	524	0,
85	524	sizeof( libvhdi_metadata_table_t ) ) == NULL )
86	0	{
87	0	libcerror_error_set(
88	0	error,
89	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
90	0	LIBCERROR_MEMORY_ERROR_SET_FAILED,
91	0	"%s: unable to clear metadata table.",
92	0	function );
93
94	0	memory_free(
95	0	*metadata_table );
96
97	0	*metadata_table = NULL;
98
99	0	return( -1 );
100	0	}
101	524	if( libcdata_array_initialize(
102	524	&( ( *metadata_table )->entries_array ),
103	524	0,
104	524	error ) != 1 )
105	0	{
106	0	libcerror_error_set(
107	0	error,
108	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
109	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
110	0	"%s: unable to create entries array.",
111	0	function );
112
113	0	goto on_error;
114	0	}
115	524	return( 1 );
116
117	0	on_error:
118	0	if( *metadata_table != NULL )
119	0	{
120	0	memory_free(
121	0	*metadata_table );
122
123	0	*metadata_table = NULL;
124	0	}
125	0	return( -1 );
126	524	}
127
128		/* Frees metadata table
129		* Returns 1 if successful or -1 on error
130		*/
131		int libvhdi_metadata_table_free(
132		libvhdi_metadata_table_t **metadata_table,
133		libcerror_error_t **error )
134	524	{
135	524	static char *function = "libvhdi_metadata_table_free";
136	524	int result = 1;
137
138	524	if( metadata_table == NULL )
139	0	{
140	0	libcerror_error_set(
141	0	error,
142	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
143	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
144	0	"%s: invalid metadata table.",
145	0	function );
146
147	0	return( -1 );
148	0	}
149	524	if( *metadata_table != NULL )
150	524	{
151	524	if( ( *metadata_table )->header != NULL )
152	486	{
153	486	if( libvhdi_metadata_table_header_free(
154	486	&( ( *metadata_table )->header ),
155	486	error ) != 1 )
156	0	{
157	0	libcerror_error_set(
158	0	error,
159	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
160	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
161	0	"%s: unable to free header.",
162	0	function );
163
164	0	result = -1;
165	0	}
166	486	}
167	524	if( libcdata_array_free(
168	524	&( ( *metadata_table )->entries_array ),
169	524	(int ()(intptr_t , libcerror_error_t *)) &libvhdi_metadata_table_entry_free,
170	524	error ) != 1 )
171	0	{
172	0	libcerror_error_set(
173	0	error,
174	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
175	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
176	0	"%s: unable to free entries array.",
177	0	function );
178
179	0	result = -1;
180	0	}
181	524	memory_free(
182	524	*metadata_table );
183
184	524	*metadata_table = NULL;
185	524	}
186	524	return( result );
187	524	}
188
189		/* Reads the metadata table
190		* Returns 1 if successful or -1 on error
191		*/
192		int libvhdi_metadata_table_read_file_io_handle(
193		libvhdi_metadata_table_t *metadata_table,
194		libbfio_handle_t *file_io_handle,
195		off64_t file_offset,
196		libcerror_error_t **error )
197	524	{
198	524	libvhdi_metadata_table_entry_t *metadata_table_entry = NULL;
199	524	uint8_t *data = NULL;
200	524	static char *function = "libvhdi_metadata_table_read_file_io_handle";
201	524	size_t data_offset = 0;
202	524	size_t data_size = 64 * 1024;
203	524	ssize_t read_count = 0;
204	524	uint32_t metadata_table_entry_index = 0;
205	524	int entry_index = 0;
206
207	524	if( metadata_table == NULL )
208	0	{
209	0	libcerror_error_set(
210	0	error,
211	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
212	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
213	0	"%s: invalid metadata table.",
214	0	function );
215
216	0	return( -1 );
217	0	}
218	524	if( metadata_table->header != NULL )
219	0	{
220	0	libcerror_error_set(
221	0	error,
222	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
223	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
224	0	"%s: invalid metadata table - header already set.",
225	0	function );
226
227	0	return( -1 );
228	0	}
229		#if defined( HAVE_DEBUG_OUTPUT )
230		if( libcnotify_verbose != 0 )
231		{
232		libcnotify_printf(
233		"%s: reading metadata table at offset: %" PRIi64 " (0x%08" PRIx64 ").\n",
234		function,
235		file_offset,
236		file_offset );
237		}
238		#endif
239	524	data = (uint8_t *) memory_allocate(
240	524	sizeof( uint8_t ) * data_size );
241
242	524	if( data == NULL )
243	0	{
244	0	libcerror_error_set(
245	0	error,
246	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
247	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
248	0	"%s: unable to create metadata table data.",
249	0	function );
250
251	0	goto on_error;
252	0	}
253	524	read_count = libbfio_handle_read_buffer_at_offset(
254	524	file_io_handle,
255	524	data,
256	524	data_size,
257	524	file_offset,
258	524	error );
259
260	524	if( read_count != (ssize_t) data_size )
261	6	{
262	6	libcerror_error_set(
263	6	error,
264	6	LIBCERROR_ERROR_DOMAIN_IO,
265	6	LIBCERROR_IO_ERROR_READ_FAILED,
266	6	"%s: unable to read metadata table data at offset: %" PRIi64 " (0x%08" PRIx64 ").",
267	6	function,
268	6	file_offset,
269	6	file_offset );
270
271	6	goto on_error;
272	6	}
273	518	if( libvhdi_metadata_table_header_initialize(
274	518	&( metadata_table->header ),
275	518	error ) != 1 )
276	0	{
277	0	libcerror_error_set(
278	0	error,
279	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
280	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
281	0	"%s: unable to create header.",
282	0	function );
283
284	0	goto on_error;
285	0	}
286	518	if( libvhdi_metadata_table_header_read_data(
287	518	metadata_table->header,
288	518	data,
289	518	sizeof( vhdi_metadata_table_header_t ),
290	518	error ) != 1 )
291	19	{
292	19	libcerror_error_set(
293	19	error,
294	19	LIBCERROR_ERROR_DOMAIN_IO,
295	19	LIBCERROR_IO_ERROR_READ_FAILED,
296	19	"%s: unable to read metadata table header.",
297	19	function );
298
299	19	goto on_error;
300	19	}
301	499	data_offset = sizeof( vhdi_metadata_table_header_t );
302
303	499	for( metadata_table_entry_index = 0;
304	10.3k	metadata_table_entry_index < metadata_table->header->number_of_entries;
305	9.84k	metadata_table_entry_index++ )
306	9.85k	{
307	9.85k	if( libvhdi_metadata_table_entry_initialize(
308	9.85k	&metadata_table_entry,
309	9.85k	error ) != 1 )
310	0	{
311	0	libcerror_error_set(
312	0	error,
313	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
314	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
315	0	"%s: unable to create entry.",
316	0	function );
317
318	0	goto on_error;
319	0	}
320	9.85k	if( libvhdi_metadata_table_entry_read_data(
321	9.85k	metadata_table_entry,
322	9.85k	&( data[ data_offset ] ),
323	9.85k	sizeof( vhdi_metadata_table_entry_t ),
324	9.85k	error ) != 1 )
325	13	{
326	13	libcerror_error_set(
327	13	error,
328	13	LIBCERROR_ERROR_DOMAIN_IO,
329	13	LIBCERROR_IO_ERROR_READ_FAILED,
330	13	"%s: unable to read metadata table entry.",
331	13	function );
332
333	13	goto on_error;
334	13	}
335	9.84k	data_offset += sizeof( vhdi_metadata_table_entry_t );
336
337	9.84k	if( libcdata_array_append_entry(
338	9.84k	metadata_table->entries_array,
339	9.84k	&entry_index,
340	9.84k	(intptr_t *) metadata_table_entry,
341	9.84k	error ) != 1 )
342	0	{
343	0	libcerror_error_set(
344	0	error,
345	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
346	0	LIBCERROR_RUNTIME_ERROR_APPEND_FAILED,
347	0	"%s: unable to append metadata table entry to entries array.",
348	0	function );
349
350	0	goto on_error;
351	0	}
352	9.84k	metadata_table_entry = NULL;
353	9.84k	}
354	486	memory_free(
355	486	data );
356
357	486	return( 1 );
358
359	38	on_error:
360	38	if( metadata_table_entry != NULL )
361	13	{
362	13	libvhdi_metadata_table_entry_free(
363	13	&metadata_table_entry,
364	13	NULL );
365	13	}
366	38	if( metadata_table->header != NULL )
367	32	{
368	32	libvhdi_metadata_table_header_free(
369	32	&( metadata_table->header ),
370	32	NULL );
371	32	}
372	38	if( data != NULL )
373	38	{
374	38	memory_free(
375	38	data );
376	38	}
377	38	libcdata_array_empty(
378	38	metadata_table->entries_array,
379	38	(int ()(intptr_t , libcerror_error_t *)) &libvhdi_metadata_table_entry_free,
380	38	NULL );
381
382	38	return( -1 );
383	499	}
384
385		/* Retrieves the number of entries
386		* Returns 1 if successful or -1 on error
387		*/
388		int libvhdi_metadata_table_get_number_of_entries(
389		libvhdi_metadata_table_t *metadata_table,
390		int *number_of_entries,
391		libcerror_error_t **error )
392	486	{
393	486	static char *function = "libvhdi_metadata_table_get_number_of_entries";
394
395	486	if( metadata_table == NULL )
396	0	{
397	0	libcerror_error_set(
398	0	error,
399	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
400	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
401	0	"%s: invalid metadata table.",
402	0	function );
403
404	0	return( -1 );
405	0	}
406	486	if( libcdata_array_get_number_of_entries(
407	486	metadata_table->entries_array,
408	486	number_of_entries,
409	486	error ) != 1 )
410	0	{
411	0	libcerror_error_set(
412	0	error,
413	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
414	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
415	0	"%s: unable to retrieve number of entries from array.",
416	0	function );
417
418	0	return( -1 );
419	0	}
420	486	return( 1 );
421	486	}
422
423		/* Retrieves a specific entry
424		* Returns 1 if successful or -1 on error
425		*/
426		int libvhdi_metadata_table_get_entry_by_index(
427		libvhdi_metadata_table_t *metadata_table,
428		int entry_index,
429		libvhdi_metadata_table_entry_t **entry,
430		libcerror_error_t **error )
431	1.22k	{
432	1.22k	static char *function = "libvhdi_metadata_table_get_entry_by_index";
433
434	1.22k	if( metadata_table == NULL )
435	0	{
436	0	libcerror_error_set(
437	0	error,
438	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
439	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
440	0	"%s: invalid metadata table.",
441	0	function );
442
443	0	return( -1 );
444	0	}
445	1.22k	if( libcdata_array_get_entry_by_index(
446	1.22k	metadata_table->entries_array,
447	1.22k	entry_index,
448	1.22k	(intptr_t **) entry,
449	1.22k	error ) != 1 )
450	0	{
451	0	libcerror_error_set(
452	0	error,
453	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
454	0	LIBCERROR_RUNTIME_ERROR_GET_FAILED,
455	0	"%s: unable to retrieve entry: %d from array.",
456	0	function,
457	0	entry_index );
458
459	0	return( -1 );
460	0	}
461	1.22k	return( 1 );
462	1.22k	}
463