/src/libmsiecf/libmsiecf/libmsiecf_item.c

Source (jump to first uncovered line)
/*
 * Item functions
 *
 * Copyright (C) 2009-2024, 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 "libmsiecf_definitions.h"
#include "libmsiecf_item.h"
#include "libmsiecf_io_handle.h"
#include "libmsiecf_leak_values.h"
#include "libmsiecf_libcerror.h"
#include "libmsiecf_libcthreads.h"
#include "libmsiecf_redirected_values.h"
#include "libmsiecf_url_values.h"

/* Creates an item
 * Make sure the value item is referencing, is set to NULL
 * Returns 1 if successful or -1 on error
 */
int libmsiecf_item_initialize(
     libmsiecf_item_t **item,
     libmsiecf_item_descriptor_t *item_descriptor,
     libcerror_error_t **error )
{
  libmsiecf_internal_item_t *internal_item = NULL;
  static char *function                    = "libmsiecf_item_initialize";

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

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

    return( -1 );
  }
  if( item_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid item descriptor.",
     function );

    return( -1 );
  }
  internal_item = memory_allocate_structure(
                   libmsiecf_internal_item_t );

  if( internal_item == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
     "%s: unable to create internal item.",
     function );

    goto on_error;
  }
  if( memory_set(
       internal_item,
       0,
       sizeof( libmsiecf_internal_item_t ) ) == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_MEMORY,
     LIBCERROR_MEMORY_ERROR_SET_FAILED,
     "%s: unable to clear internal item.",
     function );

    memory_free(
     internal_item );

    return( -1 );
  }
#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_initialize(
       &( internal_item->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_item->item_descriptor = item_descriptor;

  *item = (libmsiecf_item_t *) internal_item;

  return( 1 );

on_error:
  if( internal_item != NULL )
  {
    memory_free(
     internal_item );
  }
  return( -1 );
}

/* Frees an item
 * Returns 1 if successful or -1 on error
 */
int libmsiecf_item_free(
     libmsiecf_item_t **item,
     libcerror_error_t **error )
{
  libmsiecf_internal_item_t *internal_item = NULL;
  static char *function                    = "libmsiecf_item_free";
  int result                               = 1;

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

    return( -1 );
  }
  if( *item != NULL )
  {
    internal_item = (libmsiecf_internal_item_t *) *item;
    *item         = NULL;

#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
    if( libcthreads_read_write_lock_free(
         &( internal_item->read_write_lock ),
         error ) != 1 )
    {
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_RUNTIME,
       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
       "%s: unable to free read/write lock.",
       function );

      result = -1;
    }
#endif
                /* The item_descriptor reference is freed elsewhere
     */
    if( internal_item->value != NULL )
    {
      if( internal_item->free_value != NULL )
      {
        if( internal_item->free_value(
             &( internal_item->value ),
             error ) != 1 )
        {
          libcerror_error_set(
           error,
           LIBCERROR_ERROR_DOMAIN_RUNTIME,
           LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
           "%s: unable to free item value.",
           function );

          result = -1;
        }
      }
    }
    memory_free(
     internal_item );
  }
  return( result );
}

/* Retrieves the type
 * Determines the item type if neccessary
 * Returns 1 if successful or -1 on error
 */
int libmsiecf_item_get_type(
     libmsiecf_item_t *item,
     uint8_t *item_type,
     libcerror_error_t **error )
{
  libmsiecf_internal_item_t *internal_item = NULL;
  static char *function                    = "libmsiecf_item_get_type";

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

    return( -1 );
  }
  internal_item = (libmsiecf_internal_item_t *) item;

  if( internal_item->item_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid item - missing item descriptor.",
     function );

    return( -1 );
  }
  if( item_type == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid item type.",
     function );

    return( -1 );
  }
#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_grab_for_read(
       internal_item->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to grab read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  *item_type = internal_item->item_descriptor->type;

#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_release_for_read(
       internal_item->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to release read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  return( 1 );
}

/* Retrieves the flags
 * Returns 1 if successful or -1 on error
 */
int libmsiecf_item_get_flags(
     libmsiecf_item_t *item,
     uint8_t *item_flags,
     libcerror_error_t **error )
{
  libmsiecf_internal_item_t *internal_item = NULL;
  static char *function                    = "libmsiecf_item_get_flags";

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

    return( -1 );
  }
  internal_item = (libmsiecf_internal_item_t *) item;

  if( internal_item->item_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid item - missing item descriptor.",
     function );

    return( -1 );
  }
  if( item_flags == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid item flags.",
     function );

    return( -1 );
  }
#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_grab_for_read(
       internal_item->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to grab read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  *item_flags = internal_item->item_descriptor->flags;

#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_release_for_read(
       internal_item->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to release read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  return( 1 );
}

/* Retrieves the offset
 * Returns 1 if successful or -1 on error
 */
int libmsiecf_item_get_offset(
     libmsiecf_item_t *item,
     off64_t *offset,
     libcerror_error_t **error )
{
  libmsiecf_internal_item_t *internal_item = NULL;
  static char *function                    = "libmsiecf_item_get_offset";

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

    return( -1 );
  }
  internal_item = (libmsiecf_internal_item_t *) item;

  if( internal_item->item_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid item - missing item descriptor.",
     function );

    return( -1 );
  }
  if( offset == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid offset.",
     function );

    return( -1 );
  }
#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_grab_for_read(
       internal_item->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to grab read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  *offset = internal_item->item_descriptor->file_offset;

#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_release_for_read(
       internal_item->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to release read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  return( 1 );
}

/* Retrieves the offset range
 * Returns 1 if successful or -1 on error
 */
int libmsiecf_item_get_offset_range(
     libmsiecf_item_t *item,
     off64_t *offset,
     size64_t *size,
     libcerror_error_t **error )
{
  libmsiecf_internal_item_t *internal_item = NULL;
  static char *function                    = "libmsiecf_item_get_offset_range";

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

    return( -1 );
  }
  internal_item = (libmsiecf_internal_item_t *) item;

  if( internal_item->item_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid item - missing item descriptor.",
     function );

    return( -1 );
  }
  if( offset == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid offset.",
     function );

    return( -1 );
  }
  if( size == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid size.",
     function );

    return( -1 );
  }
#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_grab_for_read(
       internal_item->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to grab read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  *offset = internal_item->item_descriptor->file_offset;
  *size   = (size64_t) internal_item->item_descriptor->record_size;

#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
  if( libcthreads_read_write_lock_release_for_read(
       internal_item->read_write_lock,
       error ) != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_SET_FAILED,
     "%s: unable to release read/write lock for reading.",
     function );

    return( -1 );
  }
#endif
  return( 1 );
}

/* Reads the item values
 * Returns 1 if successful or -1 on error
 */
int libmsiecf_internal_item_read_values(
     libmsiecf_internal_item_t *internal_item,
     libmsiecf_io_handle_t *io_handle,
     libbfio_handle_t *file_io_handle,
     libcerror_error_t **error )
{
  const char *item_type_string = NULL;
  static char *function        = "libmsiecf_internal_item_read_values";
  int result                   = 0;

  if( internal_item == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
     "%s: invalid item.",
     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 );
  }
  if( internal_item->item_descriptor == NULL )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
     "%s: invalid item - missing item descriptor.",
     function );

    return( -1 );
  }
  switch( internal_item->item_descriptor->type )
  {
    case LIBMSIECF_ITEM_TYPE_LEAK:
      item_type_string = "leak";

      result = libmsiecf_leak_values_initialize(
                (libmsiecf_leak_values_t **) &( internal_item->value ),
                error );

      internal_item->free_value = (int (*)(intptr_t **, libcerror_error_t **)) &libmsiecf_leak_values_free;

      break;

    case LIBMSIECF_ITEM_TYPE_REDIRECTED:
      item_type_string = "redirected";

      result = libmsiecf_redirected_values_initialize(
                (libmsiecf_redirected_values_t **) &( internal_item->value ),
                error );

      internal_item->free_value = (int (*)(intptr_t **, libcerror_error_t **)) &libmsiecf_redirected_values_free;

      break;

    case LIBMSIECF_ITEM_TYPE_URL:
      item_type_string = "url";

      result = libmsiecf_url_values_initialize(
                (libmsiecf_url_values_t **) &( internal_item->value ),
                error );

      internal_item->free_value = (int (*)(intptr_t **, libcerror_error_t **)) &libmsiecf_url_values_free;

      break;

    default:
      libcerror_error_set(
       error,
       LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
       LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
       "%s: unsupported item type: %" PRIu8 ".",
       function,
       internal_item->item_descriptor->type );

      goto on_error;
  }
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_RUNTIME,
     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
     "%s: unable to create %s values.",
     function,
     item_type_string );

    goto on_error;
  }
  switch( internal_item->item_descriptor->type )
  {
    case LIBMSIECF_ITEM_TYPE_LEAK:
      result = libmsiecf_leak_values_read_file_io_handle(
                (libmsiecf_leak_values_t *) internal_item->value,
                file_io_handle,
                internal_item->item_descriptor->file_offset,
                internal_item->item_descriptor->record_size,
                io_handle->ascii_codepage,
                internal_item->item_descriptor->flags,
                error );
      break;

    case LIBMSIECF_ITEM_TYPE_REDIRECTED:
      result = libmsiecf_redirected_values_read_file_io_handle(
                (libmsiecf_redirected_values_t *) internal_item->value,
                file_io_handle,
                internal_item->item_descriptor->file_offset,
                internal_item->item_descriptor->record_size,
                io_handle->ascii_codepage,
                internal_item->item_descriptor->flags,
                error );
      break;

    case LIBMSIECF_ITEM_TYPE_URL:
      result = libmsiecf_url_values_read_file_io_handle(
                (libmsiecf_url_values_t *) internal_item->value,
                io_handle,
                file_io_handle,
                internal_item->item_descriptor->file_offset,
                internal_item->item_descriptor->record_size,
                internal_item->item_descriptor->flags,
                error );
      break;
  }
  if( result != 1 )
  {
    libcerror_error_set(
     error,
     LIBCERROR_ERROR_DOMAIN_IO,
     LIBCERROR_IO_ERROR_READ_FAILED,
     "%s: unable to read %s values at offset: %" PRIi64 ".",
     function,
     item_type_string,
     internal_item->item_descriptor->file_offset );

    goto on_error;
  }
  return( 1 );

on_error:
  if( internal_item->value != NULL )
  {
    if( internal_item->free_value != NULL )
    {
      internal_item->free_value(
       &( internal_item->value ),
       NULL );
    }
    internal_item->free_value = NULL;
  }
  return( -1 );
}


Coverage Report

Created: 2025-06-13 07:21

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Item functions
3		*
4		* Copyright (C) 2009-2024, 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 "libmsiecf_definitions.h"
27		#include "libmsiecf_item.h"
28		#include "libmsiecf_io_handle.h"
29		#include "libmsiecf_leak_values.h"
30		#include "libmsiecf_libcerror.h"
31		#include "libmsiecf_libcthreads.h"
32		#include "libmsiecf_redirected_values.h"
33		#include "libmsiecf_url_values.h"
34
35		/* Creates an item
36		* Make sure the value item is referencing, is set to NULL
37		* Returns 1 if successful or -1 on error
38		*/
39		int libmsiecf_item_initialize(
40		libmsiecf_item_t **item,
41		libmsiecf_item_descriptor_t *item_descriptor,
42		libcerror_error_t **error )
43	0	{
44	0	libmsiecf_internal_item_t *internal_item = NULL;
45	0	static char *function = "libmsiecf_item_initialize";
46
47	0	if( item == NULL )
48	0	{
49	0	libcerror_error_set(
50	0	error,
51	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
52	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
53	0	"%s: invalid item.",
54	0	function );
55
56	0	return( -1 );
57	0	}
58	0	if( *item != NULL )
59	0	{
60	0	libcerror_error_set(
61	0	error,
62	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
63	0	LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,
64	0	"%s: invalid item value already set.",
65	0	function );
66
67	0	return( -1 );
68	0	}
69	0	if( item_descriptor == NULL )
70	0	{
71	0	libcerror_error_set(
72	0	error,
73	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
74	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
75	0	"%s: invalid item descriptor.",
76	0	function );
77
78	0	return( -1 );
79	0	}
80	0	internal_item = memory_allocate_structure(
81	0	libmsiecf_internal_item_t );
82
83	0	if( internal_item == NULL )
84	0	{
85	0	libcerror_error_set(
86	0	error,
87	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
88	0	LIBCERROR_MEMORY_ERROR_INSUFFICIENT,
89	0	"%s: unable to create internal item.",
90	0	function );
91
92	0	goto on_error;
93	0	}
94	0	if( memory_set(
95	0	internal_item,
96	0	0,
97	0	sizeof( libmsiecf_internal_item_t ) ) == NULL )
98	0	{
99	0	libcerror_error_set(
100	0	error,
101	0	LIBCERROR_ERROR_DOMAIN_MEMORY,
102	0	LIBCERROR_MEMORY_ERROR_SET_FAILED,
103	0	"%s: unable to clear internal item.",
104	0	function );
105
106	0	memory_free(
107	0	internal_item );
108
109	0	return( -1 );
110	0	}
111	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
112	0	if( libcthreads_read_write_lock_initialize(
113	0	&( internal_item->read_write_lock ),
114	0	error ) != 1 )
115	0	{
116	0	libcerror_error_set(
117	0	error,
118	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
119	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
120	0	"%s: unable to initialize read/write lock.",
121	0	function );
122
123	0	goto on_error;
124	0	}
125	0	#endif
126	0	internal_item->item_descriptor = item_descriptor;
127
128	0	item = (libmsiecf_item_t ) internal_item;
129
130	0	return( 1 );
131
132	0	on_error:
133	0	if( internal_item != NULL )
134	0	{
135	0	memory_free(
136	0	internal_item );
137	0	}
138	0	return( -1 );
139	0	}
140
141		/* Frees an item
142		* Returns 1 if successful or -1 on error
143		*/
144		int libmsiecf_item_free(
145		libmsiecf_item_t **item,
146		libcerror_error_t **error )
147	0	{
148	0	libmsiecf_internal_item_t *internal_item = NULL;
149	0	static char *function = "libmsiecf_item_free";
150	0	int result = 1;
151
152	0	if( item == NULL )
153	0	{
154	0	libcerror_error_set(
155	0	error,
156	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
157	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
158	0	"%s: invalid item.",
159	0	function );
160
161	0	return( -1 );
162	0	}
163	0	if( *item != NULL )
164	0	{
165	0	internal_item = (libmsiecf_internal_item_t ) item;
166	0	*item = NULL;
167
168	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
169	0	if( libcthreads_read_write_lock_free(
170	0	&( internal_item->read_write_lock ),
171	0	error ) != 1 )
172	0	{
173	0	libcerror_error_set(
174	0	error,
175	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
176	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
177	0	"%s: unable to free read/write lock.",
178	0	function );
179
180	0	result = -1;
181	0	}
182	0	#endif
183		/* The item_descriptor reference is freed elsewhere
184		*/
185	0	if( internal_item->value != NULL )
186	0	{
187	0	if( internal_item->free_value != NULL )
188	0	{
189	0	if( internal_item->free_value(
190	0	&( internal_item->value ),
191	0	error ) != 1 )
192	0	{
193	0	libcerror_error_set(
194	0	error,
195	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
196	0	LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,
197	0	"%s: unable to free item value.",
198	0	function );
199
200	0	result = -1;
201	0	}
202	0	}
203	0	}
204	0	memory_free(
205	0	internal_item );
206	0	}
207	0	return( result );
208	0	}
209
210		/* Retrieves the type
211		* Determines the item type if neccessary
212		* Returns 1 if successful or -1 on error
213		*/
214		int libmsiecf_item_get_type(
215		libmsiecf_item_t *item,
216		uint8_t *item_type,
217		libcerror_error_t **error )
218	0	{
219	0	libmsiecf_internal_item_t *internal_item = NULL;
220	0	static char *function = "libmsiecf_item_get_type";
221
222	0	if( item == NULL )
223	0	{
224	0	libcerror_error_set(
225	0	error,
226	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
227	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
228	0	"%s: invalid item.",
229	0	function );
230
231	0	return( -1 );
232	0	}
233	0	internal_item = (libmsiecf_internal_item_t *) item;
234
235	0	if( internal_item->item_descriptor == NULL )
236	0	{
237	0	libcerror_error_set(
238	0	error,
239	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
240	0	LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
241	0	"%s: invalid item - missing item descriptor.",
242	0	function );
243
244	0	return( -1 );
245	0	}
246	0	if( item_type == NULL )
247	0	{
248	0	libcerror_error_set(
249	0	error,
250	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
251	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
252	0	"%s: invalid item type.",
253	0	function );
254
255	0	return( -1 );
256	0	}
257	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
258	0	if( libcthreads_read_write_lock_grab_for_read(
259	0	internal_item->read_write_lock,
260	0	error ) != 1 )
261	0	{
262	0	libcerror_error_set(
263	0	error,
264	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
265	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
266	0	"%s: unable to grab read/write lock for reading.",
267	0	function );
268
269	0	return( -1 );
270	0	}
271	0	#endif
272	0	*item_type = internal_item->item_descriptor->type;
273
274	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
275	0	if( libcthreads_read_write_lock_release_for_read(
276	0	internal_item->read_write_lock,
277	0	error ) != 1 )
278	0	{
279	0	libcerror_error_set(
280	0	error,
281	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
282	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
283	0	"%s: unable to release read/write lock for reading.",
284	0	function );
285
286	0	return( -1 );
287	0	}
288	0	#endif
289	0	return( 1 );
290	0	}
291
292		/* Retrieves the flags
293		* Returns 1 if successful or -1 on error
294		*/
295		int libmsiecf_item_get_flags(
296		libmsiecf_item_t *item,
297		uint8_t *item_flags,
298		libcerror_error_t **error )
299	0	{
300	0	libmsiecf_internal_item_t *internal_item = NULL;
301	0	static char *function = "libmsiecf_item_get_flags";
302
303	0	if( item == NULL )
304	0	{
305	0	libcerror_error_set(
306	0	error,
307	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
308	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
309	0	"%s: invalid item.",
310	0	function );
311
312	0	return( -1 );
313	0	}
314	0	internal_item = (libmsiecf_internal_item_t *) item;
315
316	0	if( internal_item->item_descriptor == NULL )
317	0	{
318	0	libcerror_error_set(
319	0	error,
320	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
321	0	LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
322	0	"%s: invalid item - missing item descriptor.",
323	0	function );
324
325	0	return( -1 );
326	0	}
327	0	if( item_flags == NULL )
328	0	{
329	0	libcerror_error_set(
330	0	error,
331	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
332	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
333	0	"%s: invalid item flags.",
334	0	function );
335
336	0	return( -1 );
337	0	}
338	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
339	0	if( libcthreads_read_write_lock_grab_for_read(
340	0	internal_item->read_write_lock,
341	0	error ) != 1 )
342	0	{
343	0	libcerror_error_set(
344	0	error,
345	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
346	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
347	0	"%s: unable to grab read/write lock for reading.",
348	0	function );
349
350	0	return( -1 );
351	0	}
352	0	#endif
353	0	*item_flags = internal_item->item_descriptor->flags;
354
355	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
356	0	if( libcthreads_read_write_lock_release_for_read(
357	0	internal_item->read_write_lock,
358	0	error ) != 1 )
359	0	{
360	0	libcerror_error_set(
361	0	error,
362	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
363	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
364	0	"%s: unable to release read/write lock for reading.",
365	0	function );
366
367	0	return( -1 );
368	0	}
369	0	#endif
370	0	return( 1 );
371	0	}
372
373		/* Retrieves the offset
374		* Returns 1 if successful or -1 on error
375		*/
376		int libmsiecf_item_get_offset(
377		libmsiecf_item_t *item,
378		off64_t *offset,
379		libcerror_error_t **error )
380	0	{
381	0	libmsiecf_internal_item_t *internal_item = NULL;
382	0	static char *function = "libmsiecf_item_get_offset";
383
384	0	if( item == NULL )
385	0	{
386	0	libcerror_error_set(
387	0	error,
388	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
389	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
390	0	"%s: invalid item.",
391	0	function );
392
393	0	return( -1 );
394	0	}
395	0	internal_item = (libmsiecf_internal_item_t *) item;
396
397	0	if( internal_item->item_descriptor == NULL )
398	0	{
399	0	libcerror_error_set(
400	0	error,
401	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
402	0	LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
403	0	"%s: invalid item - missing item descriptor.",
404	0	function );
405
406	0	return( -1 );
407	0	}
408	0	if( offset == NULL )
409	0	{
410	0	libcerror_error_set(
411	0	error,
412	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
413	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
414	0	"%s: invalid offset.",
415	0	function );
416
417	0	return( -1 );
418	0	}
419	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
420	0	if( libcthreads_read_write_lock_grab_for_read(
421	0	internal_item->read_write_lock,
422	0	error ) != 1 )
423	0	{
424	0	libcerror_error_set(
425	0	error,
426	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
427	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
428	0	"%s: unable to grab read/write lock for reading.",
429	0	function );
430
431	0	return( -1 );
432	0	}
433	0	#endif
434	0	*offset = internal_item->item_descriptor->file_offset;
435
436	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
437	0	if( libcthreads_read_write_lock_release_for_read(
438	0	internal_item->read_write_lock,
439	0	error ) != 1 )
440	0	{
441	0	libcerror_error_set(
442	0	error,
443	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
444	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
445	0	"%s: unable to release read/write lock for reading.",
446	0	function );
447
448	0	return( -1 );
449	0	}
450	0	#endif
451	0	return( 1 );
452	0	}
453
454		/* Retrieves the offset range
455		* Returns 1 if successful or -1 on error
456		*/
457		int libmsiecf_item_get_offset_range(
458		libmsiecf_item_t *item,
459		off64_t *offset,
460		size64_t *size,
461		libcerror_error_t **error )
462	0	{
463	0	libmsiecf_internal_item_t *internal_item = NULL;
464	0	static char *function = "libmsiecf_item_get_offset_range";
465
466	0	if( item == NULL )
467	0	{
468	0	libcerror_error_set(
469	0	error,
470	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
471	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
472	0	"%s: invalid item.",
473	0	function );
474
475	0	return( -1 );
476	0	}
477	0	internal_item = (libmsiecf_internal_item_t *) item;
478
479	0	if( internal_item->item_descriptor == NULL )
480	0	{
481	0	libcerror_error_set(
482	0	error,
483	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
484	0	LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
485	0	"%s: invalid item - missing item descriptor.",
486	0	function );
487
488	0	return( -1 );
489	0	}
490	0	if( offset == NULL )
491	0	{
492	0	libcerror_error_set(
493	0	error,
494	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
495	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
496	0	"%s: invalid offset.",
497	0	function );
498
499	0	return( -1 );
500	0	}
501	0	if( size == NULL )
502	0	{
503	0	libcerror_error_set(
504	0	error,
505	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
506	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
507	0	"%s: invalid size.",
508	0	function );
509
510	0	return( -1 );
511	0	}
512	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
513	0	if( libcthreads_read_write_lock_grab_for_read(
514	0	internal_item->read_write_lock,
515	0	error ) != 1 )
516	0	{
517	0	libcerror_error_set(
518	0	error,
519	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
520	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
521	0	"%s: unable to grab read/write lock for reading.",
522	0	function );
523
524	0	return( -1 );
525	0	}
526	0	#endif
527	0	*offset = internal_item->item_descriptor->file_offset;
528	0	*size = (size64_t) internal_item->item_descriptor->record_size;
529
530	0	#if defined( HAVE_LIBMSIECF_MULTI_THREAD_SUPPORT )
531	0	if( libcthreads_read_write_lock_release_for_read(
532	0	internal_item->read_write_lock,
533	0	error ) != 1 )
534	0	{
535	0	libcerror_error_set(
536	0	error,
537	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
538	0	LIBCERROR_RUNTIME_ERROR_SET_FAILED,
539	0	"%s: unable to release read/write lock for reading.",
540	0	function );
541
542	0	return( -1 );
543	0	}
544	0	#endif
545	0	return( 1 );
546	0	}
547
548		/* Reads the item values
549		* Returns 1 if successful or -1 on error
550		*/
551		int libmsiecf_internal_item_read_values(
552		libmsiecf_internal_item_t *internal_item,
553		libmsiecf_io_handle_t *io_handle,
554		libbfio_handle_t *file_io_handle,
555		libcerror_error_t **error )
556	0	{
557	0	const char *item_type_string = NULL;
558	0	static char *function = "libmsiecf_internal_item_read_values";
559	0	int result = 0;
560
561	0	if( internal_item == NULL )
562	0	{
563	0	libcerror_error_set(
564	0	error,
565	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
566	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
567	0	"%s: invalid item.",
568	0	function );
569
570	0	return( -1 );
571	0	}
572	0	if( io_handle == NULL )
573	0	{
574	0	libcerror_error_set(
575	0	error,
576	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
577	0	LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
578	0	"%s: invalid IO handle.",
579	0	function );
580
581	0	return( -1 );
582	0	}
583	0	if( internal_item->item_descriptor == NULL )
584	0	{
585	0	libcerror_error_set(
586	0	error,
587	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
588	0	LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,
589	0	"%s: invalid item - missing item descriptor.",
590	0	function );
591
592	0	return( -1 );
593	0	}
594	0	switch( internal_item->item_descriptor->type )
595	0	{
596	0	case LIBMSIECF_ITEM_TYPE_LEAK:
597	0	item_type_string = "leak";
598
599	0	result = libmsiecf_leak_values_initialize(
600	0	(libmsiecf_leak_values_t **) &( internal_item->value ),
601	0	error );
602
603	0	internal_item->free_value = (int ()(intptr_t , libcerror_error_t *)) &libmsiecf_leak_values_free;
604
605	0	break;
606
607	0	case LIBMSIECF_ITEM_TYPE_REDIRECTED:
608	0	item_type_string = "redirected";
609
610	0	result = libmsiecf_redirected_values_initialize(
611	0	(libmsiecf_redirected_values_t **) &( internal_item->value ),
612	0	error );
613
614	0	internal_item->free_value = (int ()(intptr_t , libcerror_error_t *)) &libmsiecf_redirected_values_free;
615
616	0	break;
617
618	0	case LIBMSIECF_ITEM_TYPE_URL:
619	0	item_type_string = "url";
620
621	0	result = libmsiecf_url_values_initialize(
622	0	(libmsiecf_url_values_t **) &( internal_item->value ),
623	0	error );
624
625	0	internal_item->free_value = (int ()(intptr_t , libcerror_error_t *)) &libmsiecf_url_values_free;
626
627	0	break;
628
629	0	default:
630	0	libcerror_error_set(
631	0	error,
632	0	LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
633	0	LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,
634	0	"%s: unsupported item type: %" PRIu8 ".",
635	0	function,
636	0	internal_item->item_descriptor->type );
637
638	0	goto on_error;
639	0	}
640	0	if( result != 1 )
641	0	{
642	0	libcerror_error_set(
643	0	error,
644	0	LIBCERROR_ERROR_DOMAIN_RUNTIME,
645	0	LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,
646	0	"%s: unable to create %s values.",
647	0	function,
648	0	item_type_string );
649
650	0	goto on_error;
651	0	}
652	0	switch( internal_item->item_descriptor->type )
653	0	{
654	0	case LIBMSIECF_ITEM_TYPE_LEAK:
655	0	result = libmsiecf_leak_values_read_file_io_handle(
656	0	(libmsiecf_leak_values_t *) internal_item->value,
657	0	file_io_handle,
658	0	internal_item->item_descriptor->file_offset,
659	0	internal_item->item_descriptor->record_size,
660	0	io_handle->ascii_codepage,
661	0	internal_item->item_descriptor->flags,
662	0	error );
663	0	break;
664
665	0	case LIBMSIECF_ITEM_TYPE_REDIRECTED:
666	0	result = libmsiecf_redirected_values_read_file_io_handle(
667	0	(libmsiecf_redirected_values_t *) internal_item->value,
668	0	file_io_handle,
669	0	internal_item->item_descriptor->file_offset,
670	0	internal_item->item_descriptor->record_size,
671	0	io_handle->ascii_codepage,
672	0	internal_item->item_descriptor->flags,
673	0	error );
674	0	break;
675
676	0	case LIBMSIECF_ITEM_TYPE_URL:
677	0	result = libmsiecf_url_values_read_file_io_handle(
678	0	(libmsiecf_url_values_t *) internal_item->value,
679	0	io_handle,
680	0	file_io_handle,
681	0	internal_item->item_descriptor->file_offset,
682	0	internal_item->item_descriptor->record_size,
683	0	internal_item->item_descriptor->flags,
684	0	error );
685	0	break;
686	0	}
687	0	if( result != 1 )
688	0	{
689	0	libcerror_error_set(
690	0	error,
691	0	LIBCERROR_ERROR_DOMAIN_IO,
692	0	LIBCERROR_IO_ERROR_READ_FAILED,
693	0	"%s: unable to read %s values at offset: %" PRIi64 ".",
694	0	function,
695	0	item_type_string,
696	0	internal_item->item_descriptor->file_offset );
697
698	0	goto on_error;
699	0	}
700	0	return( 1 );
701
702	0	on_error:
703	0	if( internal_item->value != NULL )
704	0	{
705	0	if( internal_item->free_value != NULL )
706	0	{
707	0	internal_item->free_value(
708	0	&( internal_item->value ),
709	0	NULL );
710	0	}
711	0	internal_item->free_value = NULL;
712	0	}
713	0	return( -1 );
714	0	}
715