/*

 * File functions

 *

 * Copyright (C) 2014-2024, 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 <narrow_string.h>

#include <types.h>

#include <wide_string.h>

#include "libagdb_compressed_block.h"

#include "libagdb_compressed_blocks_stream.h"

#include "libagdb_compressed_file_header.h"

#include "libagdb_debug.h"

#include "libagdb_definitions.h"

#include "libagdb_io_handle.h"

#include "libagdb_file.h"

#include "libagdb_libbfio.h"

#include "libagdb_libcdata.h"

#include "libagdb_libcerror.h"

#include "libagdb_libcnotify.h"

#include "libagdb_libfcache.h"

#include "libagdb_libfdata.h"

#include "libagdb_source_information.h"

#include "libagdb_volume_information.h"

/* Creates a file

 * Make sure the value file is referencing, is set to NULL

 * Returns 1 if successful or -1 on error

 */

int libagdb_file_initialize(

     libagdb_file_t **file,

     libcerror_error_t **error )

{

  libagdb_internal_file_t *internal_file = NULL;

  static char *function                  = "libagdb_file_initialize";

  if( file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file.",

     function );

    return( -1 );

  }

  if( *file != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid file value already set.",

     function );

    return( -1 );

  }

  internal_file = memory_allocate_structure(

                   libagdb_internal_file_t );

  if( internal_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_INSUFFICIENT,

     "%s: unable to create file.",

     function );

    goto on_error;

  }

  if( memory_set(

       internal_file,

       0,

       sizeof( libagdb_internal_file_t ) ) == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_MEMORY,

     LIBCERROR_MEMORY_ERROR_SET_FAILED,

     "%s: unable to clear file.",

     function );

    memory_free(

     internal_file );

    return( -1 );

  }

  if( libcdata_array_initialize(

       &( internal_file->volumes_array ),

       0,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create volumes array.",

     function );

    goto on_error;

  }

  if( libcdata_array_initialize(

       &( internal_file->sources_array ),

       0,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create sources array.",

     function );

    goto on_error;

  }

  if( libagdb_io_handle_initialize(

       &( internal_file->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;

  }

  *file = (libagdb_file_t *) internal_file;

  return( 1 );

on_error:

  if( internal_file != NULL )

  {

    if( internal_file->sources_array != NULL )

    {

      libcdata_array_free(

       &( internal_file->sources_array ),

       NULL,

       NULL );

    }

    if( internal_file->volumes_array != NULL )

    {

      libcdata_array_free(

       &( internal_file->volumes_array ),

       NULL,

       NULL );

    }

    memory_free(

     internal_file );

  }

  return( -1 );

}

/* Frees a file

 * Returns 1 if successful or -1 on error

 */

int libagdb_file_free(

     libagdb_file_t **file,

     libcerror_error_t **error )

{

  libagdb_internal_file_t *internal_file = NULL;

  static char *function                  = "libagdb_file_free";

  int result                             = 1;

  if( file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file.",

     function );

    return( -1 );

  }

  if( *file != NULL )

  {

    internal_file = (libagdb_internal_file_t *) *file;

    if( internal_file->file_io_handle != NULL )

    {

      if( libagdb_file_close(

           *file,

           error ) != 0 )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_IO,

         LIBCERROR_IO_ERROR_CLOSE_FAILED,

         "%s: unable to close file.",

         function );

        result = -1;

      }

    }

    *file = NULL;

    if( libcdata_array_free(

         &( internal_file->volumes_array ),

         (int (*)(intptr_t **, libcerror_error_t **)) &libagdb_internal_volume_information_free,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free volumes array.",

       function );

      result = -1;

    }

    if( libcdata_array_free(

         &( internal_file->sources_array ),

         (int (*)(intptr_t **, libcerror_error_t **)) &libagdb_internal_source_information_free,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free sources array.",

       function );

      result = -1;

    }

    if( libagdb_io_handle_free(

         &( internal_file->io_handle ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free IO handle.",

       function );

      result = -1;

    }

    memory_free(

     internal_file );

  }

  return( result );

}

/* Signals the file to abort its current activity

 * Returns 1 if successful or -1 on error

 */

int libagdb_file_signal_abort(

     libagdb_file_t *file,

     libcerror_error_t **error )

{

  libagdb_internal_file_t *internal_file = NULL;

  static char *function                  = "libagdb_file_signal_abort";

  if( file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file.",

     function );

    return( -1 );

  }

  internal_file = (libagdb_internal_file_t *) file;

  if( internal_file->io_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

     "%s: invalid file - missing IO handle.",

     function );

    return( -1 );

  }

  internal_file->io_handle->abort = 1;

  return( 1 );

}

/* Opens a file

 * Returns 1 if successful or -1 on error

 */

int libagdb_file_open(

     libagdb_file_t *file,

     const char *filename,

     int access_flags,

     libcerror_error_t **error )

{

  libbfio_handle_t *file_io_handle       = NULL;

  libagdb_internal_file_t *internal_file = NULL;

  static char *function                  = "libagdb_file_open";

  size_t filename_length                 = 0;

  if( file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file.",

     function );

    return( -1 );

  }

  internal_file = (libagdb_internal_file_t *) file;

  if( filename == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid filename.",

     function );

    return( -1 );

  }

  if( ( ( access_flags & LIBAGDB_ACCESS_FLAG_READ ) == 0 )

   && ( ( access_flags & LIBAGDB_ACCESS_FLAG_WRITE ) == 0 ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: unsupported access flags.",

     function );

    return( -1 );

  }

  if( ( access_flags & LIBAGDB_ACCESS_FLAG_WRITE ) != 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: write access currently not supported.",

     function );

    return( -1 );

  }

  if( libbfio_file_initialize(

       &file_io_handle,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create file IO handle.",

     function );

    goto on_error;

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libbfio_handle_set_track_offsets_read(

       file_io_handle,

       1,

       error ) != 1 )

  {

                libcerror_error_set(

                 error,

                 LIBCERROR_ERROR_DOMAIN_RUNTIME,

                 LIBCERROR_RUNTIME_ERROR_SET_FAILED,

                 "%s: unable to set track offsets read in file IO handle.",

                 function );

    goto on_error;

  }

#endif

  filename_length = narrow_string_length(

                     filename );

  if( libbfio_file_set_name(

       file_io_handle,

       filename,

       filename_length + 1,

       error ) != 1 )

  {

                libcerror_error_set(

                 error,

                 LIBCERROR_ERROR_DOMAIN_RUNTIME,

                 LIBCERROR_RUNTIME_ERROR_SET_FAILED,

                 "%s: unable to set filename in file IO handle.",

                 function );

    goto on_error;

  }

  if( libagdb_file_open_file_io_handle(

       file,

       file_io_handle,

       access_flags,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_OPEN_FAILED,

     "%s: unable to open file: %s.",

     function,

     filename );

    goto on_error;

  }

  internal_file->file_io_handle_created_in_library = 1;

  return( 1 );

on_error:

  if( file_io_handle != NULL )

  {

    libbfio_handle_free(

     &file_io_handle,

     NULL );

  }

  return( -1 );

}

#if defined( HAVE_WIDE_CHARACTER_TYPE )

/* Opens a file

 * Returns 1 if successful or -1 on error

 */

int libagdb_file_open_wide(

     libagdb_file_t *file,

     const wchar_t *filename,

     int access_flags,

     libcerror_error_t **error )

{

  libbfio_handle_t *file_io_handle       = NULL;

  libagdb_internal_file_t *internal_file = NULL;

  static char *function                  = "libagdb_file_open_wide";

  size_t filename_length                 = 0;

  if( file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file.",

     function );

    return( -1 );

  }

  internal_file = (libagdb_internal_file_t *) file;

  if( filename == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid filename.",

     function );

    return( -1 );

  }

  if( ( ( access_flags & LIBAGDB_ACCESS_FLAG_READ ) == 0 )

   && ( ( access_flags & LIBAGDB_ACCESS_FLAG_WRITE ) == 0 ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: unsupported access flags.",

     function );

    return( -1 );

  }

  if( ( access_flags & LIBAGDB_ACCESS_FLAG_WRITE ) != 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: write access currently not supported.",

     function );

    return( -1 );

  }

  if( libbfio_file_initialize(

       &file_io_handle,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_INITIALIZE_FAILED,

     "%s: unable to create file IO handle.",

     function );

    goto on_error;

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libbfio_handle_set_track_offsets_read(

       file_io_handle,

       1,

       error ) != 1 )

  {

                libcerror_error_set(

                 error,

                 LIBCERROR_ERROR_DOMAIN_RUNTIME,

                 LIBCERROR_RUNTIME_ERROR_SET_FAILED,

                 "%s: unable to set track offsets read in file IO handle.",

                 function );

    goto on_error;

  }

#endif

  filename_length = wide_string_length(

                     filename );

  if( libbfio_file_set_name_wide(

       file_io_handle,

       filename,

       filename_length + 1,

       error ) != 1 )

  {

                libcerror_error_set(

                 error,

                 LIBCERROR_ERROR_DOMAIN_RUNTIME,

                 LIBCERROR_RUNTIME_ERROR_SET_FAILED,

                 "%s: unable to set filename in file IO handle.",

                 function );

    goto on_error;

  }

  if( libagdb_file_open_file_io_handle(

       file,

       file_io_handle,

       access_flags,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_OPEN_FAILED,

     "%s: unable to open file: %ls.",

     function,

     filename );

    goto on_error;

  }

  internal_file->file_io_handle_created_in_library = 1;

  return( 1 );

on_error:

  if( file_io_handle != NULL )

  {

    libbfio_handle_free(

     &file_io_handle,

     NULL );

  }

  return( -1 );

}

#endif

/* Opens a file using a Basic File IO (bfio) handle

 * Returns 1 if successful or -1 on error

 */

int libagdb_file_open_file_io_handle(

     libagdb_file_t *file,

     libbfio_handle_t *file_io_handle,

     int access_flags,

     libcerror_error_t **error )

{

  libagdb_internal_file_t *internal_file = NULL;

  static char *function                  = "libagdb_file_open_file_io_handle";

  int bfio_access_flags                  = 0;

  int file_io_handle_is_open             = 0;

  if( file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file.",

     function );

    return( -1 );

  }

  internal_file = (libagdb_internal_file_t *) file;

  if( internal_file->file_io_handle != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid file - file IO handle already set.",

     function );

    return( -1 );

  }

  if( file_io_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file IO handle.",

     function );

    return( -1 );

  }

  if( ( ( access_flags & LIBAGDB_ACCESS_FLAG_READ ) == 0 )

   && ( ( access_flags & LIBAGDB_ACCESS_FLAG_WRITE ) == 0 ) )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: unsupported access flags.",

     function );

    return( -1 );

  }

  if( ( access_flags & LIBAGDB_ACCESS_FLAG_WRITE ) != 0 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE,

     "%s: write access currently not supported.",

     function );

    return( -1 );

  }

  if( ( access_flags & LIBAGDB_ACCESS_FLAG_READ ) != 0 )

  {

    bfio_access_flags = LIBBFIO_ACCESS_FLAG_READ;

  }

  internal_file->file_io_handle = file_io_handle;

  file_io_handle_is_open = libbfio_handle_is_open(

                            internal_file->file_io_handle,

                            error );

  if( file_io_handle_is_open == -1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_OPEN_FAILED,

     "%s: unable to determine if file IO handle is open.",

     function );

    goto on_error;

  }

  else if( file_io_handle_is_open == 0 )

  {

    if( libbfio_handle_open(

         internal_file->file_io_handle,

         bfio_access_flags,

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_IO,

       LIBCERROR_IO_ERROR_OPEN_FAILED,

       "%s: unable to open file IO handle.",

       function );

      goto on_error;

    }

    internal_file->file_io_handle_opened_in_library = 1;

  }

  if( libagdb_file_open_read(

       internal_file,

       file_io_handle,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_IO,

     LIBCERROR_IO_ERROR_READ_FAILED,

     "%s: unable to read from file handle.",

     function );

    goto on_error;

  }

  internal_file->file_io_handle = file_io_handle;

  return( 1 );

on_error:

  if( ( file_io_handle_is_open == 0 )

   && ( internal_file->file_io_handle_opened_in_library != 0 ) )

  {

    libbfio_handle_close(

     file_io_handle,

     error );

    internal_file->file_io_handle_opened_in_library = 0;

  }

  internal_file->file_io_handle = NULL;

  return( -1 );

}

/* Closes a file

 * Returns 0 if successful or -1 on error

 */

int libagdb_file_close(

     libagdb_file_t *file,

     libcerror_error_t **error )

{

  libagdb_internal_file_t *internal_file = NULL;

  static char *function                  = "libagdb_file_close";

  int result                             = 0;

  if( file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file.",

     function );

    return( -1 );

  }

  internal_file = (libagdb_internal_file_t *) file;

  if( internal_file->file_io_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

     "%s: invalid file - missing file IO handle.",

     function );

    return( -1 );

  }

#if defined( HAVE_DEBUG_OUTPUT )

  if( libcnotify_verbose != 0 )

  {

    if( internal_file->file_io_handle_created_in_library != 0 )

    {

      if( libagdb_debug_print_read_offsets(

           internal_file->file_io_handle,

           error ) != 1 )

      {

        libcerror_error_set(

         error,

         LIBCERROR_ERROR_DOMAIN_RUNTIME,

         LIBCERROR_RUNTIME_ERROR_PRINT_FAILED,

         "%s: unable to print the read offsets.",

         function );

        result = -1;

      }

    }

  }

#endif

  if( internal_file->file_io_handle_opened_in_library != 0 )

  {

    if( libbfio_handle_close(

         internal_file->file_io_handle,

         error ) != 0 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_IO,

       LIBCERROR_IO_ERROR_CLOSE_FAILED,

       "%s: unable to close file IO handle.",

       function );

      result = -1;

    }

    internal_file->file_io_handle_opened_in_library = 0;

  }

  if( internal_file->file_io_handle_created_in_library != 0 )

  {

    if( libbfio_handle_free(

         &( internal_file->file_io_handle ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free file IO handle.",

       function );

      result = -1;

    }

    internal_file->file_io_handle_created_in_library = 0;

  }

  internal_file->file_io_handle = NULL;

  if( libagdb_io_handle_clear(

       internal_file->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;

  }

  if( internal_file->compressed_blocks_list != NULL )

  {

    if( libfdata_list_free(

         &( internal_file->compressed_blocks_list ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free compressed blocks list.",

       function );

      result = -1;

    }

  }

  if( internal_file->compressed_blocks_cache != NULL )

  {

    if( libfcache_cache_free(

         &( internal_file->compressed_blocks_cache ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free compressed blocks cache.",

       function );

      result = -1;

    }

  }

  if( internal_file->uncompressed_data_stream != NULL )

  {

    if( libfdata_stream_free(

         &( internal_file->uncompressed_data_stream ),

         error ) != 1 )

    {

      libcerror_error_set(

       error,

       LIBCERROR_ERROR_DOMAIN_RUNTIME,

       LIBCERROR_RUNTIME_ERROR_FINALIZE_FAILED,

       "%s: unable to free uncompressed data strea,.",

       function );

      result = -1;

    }

  }

  if( libcdata_array_resize(

       internal_file->volumes_array,

       0,

       (int (*)(intptr_t **, libcerror_error_t **)) &libagdb_internal_volume_information_free,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_RESIZE_FAILED,

     "%s: unable to resize volumes array.",

     function );

    result = -1;

  }

  if( libcdata_array_resize(

       internal_file->sources_array,

       0,

       (int (*)(intptr_t **, libcerror_error_t **)) &libagdb_internal_source_information_free,

       error ) != 1 )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_RESIZE_FAILED,

     "%s: unable to resize sources array.",

     function );

    result = -1;

  }

  return( result );

}

/* Opens a file for reading

 * Returns 1 if successful or -1 on error

 */

int libagdb_file_open_read(

     libagdb_internal_file_t *internal_file,

     libbfio_handle_t *file_io_handle,

     libcerror_error_t **error )

{

  uint8_t alignment_padding_data[ 8 ];

  libagdb_compressed_file_header_t *compressed_file_header = NULL;

  libagdb_source_information_t *source_information         = NULL;

  libagdb_volume_information_t *volume_information         = NULL;

  static char *function                                    = "libagdb_file_open_read";

  ssize64_t read_count                                     = 0;

  size_t alignment_padding_size                            = 0;

  off64_t file_offset                                      = 0;

  uint32_t number_of_sources                               = 0;

  uint32_t number_of_volumes                               = 0;

  uint32_t source_index                                    = 0;

  uint32_t volume_index                                    = 0;

  int entry_index                                          = 0;

  int segment_index                                        = 0;

  if( internal_file == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,

     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,

     "%s: invalid file.",

     function );

    return( -1 );

  }

  if( internal_file->io_handle == NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_MISSING,

     "%s: invalid file - missing IO handle.",

     function );

    return( -1 );

  }

  if( internal_file->compressed_blocks_list != NULL )

  {

    libcerror_error_set(

     error,

     LIBCERROR_ERROR_DOMAIN_RUNTIME,

     LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET,

     "%s: invalid file - compressed blocks list value already set.",

     function );

    return( -1 );