Example #1
0
int main( int argc, char * const argv[] )
#endif
{
	libcerror_error_t *error = NULL;
	libewf_handle_t *handle = NULL;
	off64_t read_offset     = 0;
	size64_t media_size     = 0;
	size64_t read_size      = 0;
	size32_t chunk_size     = 0;

	if( argc < 2 )
	{
		fprintf(
		 stderr,
		 "Missing filename(s).\n" );

		return( EXIT_FAILURE );
	}
#if defined( HAVE_DEBUG_OUTPUT ) && defined( EWF_TEST_READ_VERBOSE )
	libewf_notify_set_verbose(
	 1 );
	libewf_notify_set_stream(
	 stderr,
	 NULL );
#endif
	/* Initialization
	 */
	if( libewf_handle_initialize(
	     &handle,
	     &error ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to create handle.\n" );

		goto on_error;
	}
#if defined( LIBCSTRING_HAVE_WIDE_SYSTEM_CHARACTER )
	if( libewf_handle_open_wide(
	     handle,
	     &( argv[ 1 ] ),
	     argc - 1,
	     LIBEWF_OPEN_READ,
	     &error ) != 1 )
#else
	if( libewf_handle_open(
	     handle,
	     &( argv[ 1 ] ),
	     argc - 1,
	     LIBEWF_OPEN_READ,
	     &error ) != 1 )
#endif
	{
		fprintf(
		 stderr,
		 "Unable to open file(s).\n" );

		goto on_error;
	}
	if( libewf_handle_get_media_size(
	     handle,
	     &media_size,
	     &error ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to retrieve media size.\n" );

		goto on_error;
	}
	if( media_size > (size64_t) INT64_MAX )
	{
		fprintf(
		 stderr,
		 "Media size exceeds maximum.\n" );

		goto on_error;
	}
	if( libewf_handle_get_chunk_size(
	     handle,
	     &chunk_size,
	     &error ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to retrieve chunk size.\n" );

		goto on_error;
	}
	if( chunk_size == 0 )
	{
		fprintf(
		 stderr,
		 "Invalid chunk size.\n" );

		goto on_error;
	}
	fprintf(
	 stdout,
	 "Media size: %" PRIu64 " bytes\n",
	 media_size );

	/* Case 0: test full read
	 */

	/* Test: offset: 0 size: <media_size>
	 * Expected result: offset: 0 size: <media_size>
	 */
	read_offset = 0;
	read_size   = media_size;

	if( ewf_test_read_buffer_at_offset(
	     handle,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read buffer.\n" );

		goto on_error;
	}
	if( ewf_test_read_buffer_at_offset(
	     handle,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read buffer.\n" );

		goto on_error;
	}

	/* Case 1: test random read
	 */

	/* Test: offset: <media_size / 7> size: <media_size / 2>
	 * Expected result: offset: <media_size / 7> size: <media_size / 2>
	 */
	read_offset = (off64_t) ( media_size / 7 );
	read_size   = media_size / 2;

	if( ewf_test_read_buffer_at_offset(
	     handle,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read buffer.\n" );

		goto on_error;
	}
	if( ewf_test_read_buffer_at_offset(
	     handle,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read buffer.\n" );

		goto on_error;
	}

	/* Case 2: test read buffer beyond media size
	 */
	if( media_size < 1024 )
	{
		/* Test: offset: <media_size - 1024> size: 4096
		 * Expected result: offset: -1 size: <undetermined>
		 */
		read_offset = (off64_t) ( media_size - 1024 );
		read_size   = 4096;

		if( ewf_test_read_buffer_at_offset(
		     handle,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     -1,
		     (size64_t) -1 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read buffer.\n" );

			goto on_error;
		}
		if( ewf_test_read_buffer_at_offset(
		     handle,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     -1,
		     (size64_t) -1 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read buffer.\n" );

			goto on_error;
		}
	}
	else
	{
		/* Test: offset: <media_size - 1024> size: 4096
		 * Expected result: offset: <media_size - 1024> size: 1024
		 */
		read_offset = (off64_t) ( media_size - 1024 );
		read_size   = 4096;

		if( ewf_test_read_buffer_at_offset(
		     handle,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     1024 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read buffer.\n" );

			goto on_error;
		}
		if( ewf_test_read_buffer_at_offset(
		     handle,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     1024 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read buffer.\n" );

			goto on_error;
		}
	}
	fprintf(
	 stdout,
	 "\nChunk size: %" PRIu32 " bytes\n",
	 chunk_size );

	/* Case 0: test full read
	 */

	/* Test: offset: 0 size: <media_size>
	 * Expected result: offset: 0 size: <media_size>
	 */
	read_offset = 0;
	read_size   = media_size;

	if( ewf_test_read_chunk_at_offset(
	     handle,
	     chunk_size,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read chunk.\n" );

		goto on_error;
	}
	if( ewf_test_read_chunk_at_offset(
	     handle,
	     chunk_size,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read chunk.\n" );

		goto on_error;
	}

	/* Case 1: test random read
	 */

	/* Test: offset: <( ( media_size / 7 ) / chunk_size ) * chunk_size> size: <( ( ( media_size / 2 ) / chunk_size ) + 1 ) * chunk_size>
	 * Expected result: offset: <( ( media_size / 7 ) / chunk_size ) * chunk_size> size: <( ( ( media_size / 2 ) / chunk_size ) + 1 ) * chunk_size>
	 */
	read_offset = (off64_t) ( ( media_size / 7 ) / chunk_size ) * chunk_size;
	read_size   = ( ( ( media_size / 2 ) / chunk_size ) + 1 ) * chunk_size;

	if( media_size == 0 )
	{
		if( ewf_test_read_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     0 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read chunk.\n" );

			goto on_error;
		}
		if( ewf_test_read_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     0 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read chunk.\n" );

			goto on_error;
		}
	}
	else
	{
		if( ewf_test_read_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     read_size ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read chunk.\n" );

			goto on_error;
		}
		if( ewf_test_read_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     read_size ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read chunk.\n" );

			goto on_error;
		}
	}
	/* Case 2: test read chunk beyond media size
	 */
	if( media_size < 1024 )
	{
		/* Test: offset: <media_size - 1024> size: chunk_size
		 * Expected result: offset: -1 size: <undetermined>
		 */
		read_offset = (off64_t) ( media_size - 1024 );
		read_size   = chunk_size;

		if( ewf_test_read_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     -1,
		     (size64_t) -1 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read chunk.\n" );

			goto on_error;
		}
		if( ewf_test_read_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     -1,
		     (size64_t) -1 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read chunk.\n" );

			goto on_error;
		}
	}
	else
	{
		/* Test: offset: <media_size - 1024> size: chunk_size
		 * Expected result: offset: <media_size - 1024> size: chunk size or media_size % chunk_size
		 */
		read_offset = (off64_t) ( media_size - 1024 );
		read_size   = chunk_size;

		if( ewf_test_read_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     (off64_t) ( media_size - 1024 ),
		     ( ( media_size % chunk_size ) == 0 ) ? chunk_size : media_size % chunk_size ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read chunk.\n" );

			goto on_error;
		}
		if( ewf_test_read_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     (off64_t) ( media_size - 1024 ),
		     ( ( media_size % chunk_size ) == 0 ) ? chunk_size : media_size % chunk_size ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read chunk.\n" );

			goto on_error;
		}
	}
	/* Clean up
	 */
	if( libewf_handle_close(
	     handle,
	     &error ) != 0 )
	{
		fprintf(
		 stderr,
		 "Unable to close file(s).\n" );

		goto on_error;
	}
	if( libewf_handle_free(
	     &handle,
	     &error ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to free handle.\n" );

		goto on_error;
	}
	return( EXIT_SUCCESS );

on_error:
	if( error != NULL )
	{
		libewf_error_backtrace_fprint(
		 error,
		 stderr );
		libewf_error_free(
		 &error );
	}
	if( handle != NULL )
	{
		libewf_handle_close(
		 handle,
		 NULL );
		libewf_handle_free(
		 &handle,
		 NULL );
	}
	return( EXIT_FAILURE );
}
int main( int argc, char * const argv[] )
#endif
{
	libcstring_system_character_t *target_filename = NULL;
	liberror_error_t *error                        = NULL;
	libewf_handle_t *handle                        = NULL;
	libcstring_system_integer_t option             = 0;
	off64_t read_offset                            = 0;
	size64_t media_size                            = 0;
	size64_t read_size                             = 0;
	size32_t chunk_size                            = 0;
	size_t delta_segment_filename_length           = 0;

	while( ( option = libsystem_getopt(
	                   argc,
	                   argv,
	                   _LIBCSTRING_SYSTEM_STRING( "t:" ) ) ) != (libcstring_system_integer_t) -1 )
	{
		switch( option )
		{
			case (libcstring_system_integer_t) '?':
			default:
				fprintf(
				 stderr,
				 "Invalid argument: %" PRIs_LIBCSTRING_SYSTEM ".\n",
				 argv[ optind - 1 ] );

				return( EXIT_FAILURE );

			case (libcstring_system_integer_t) 't':
				target_filename = optarg;

				break;
		}
	}
	if( optind == argc )
	{
		fprintf(
		 stderr,
		 "Missing EWF image filename(s).\n" );

		return( EXIT_FAILURE );
	}
	/* Initialization
	 */
	if( libewf_handle_initialize(
	     &handle,
	     &error ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to create handle.\n" );

		goto on_error;
	}
/*
#if defined( HAVE_DEBUG_OUTPUT )
	libewf_notify_set_verbose(
	 1 );
	libewf_notify_set_stream(
	 stderr,
	 NULL );
#endif
*/

#if defined( LIBCSTRING_HAVE_WIDE_SYSTEM_CHARACTER )
	if( libewf_handle_open_wide(
	     handle,
	     &( argv[ optind ] ),
	     argc - optind,
	     LIBEWF_OPEN_READ_WRITE,
	     &error ) != 1 )
#else
	if( libewf_handle_open(
	     handle,
	     &( argv[ optind ] ),
	     argc - optind,
	     LIBEWF_OPEN_READ_WRITE,
	     &error ) != 1 )
#endif
	{
		fprintf(
		 stderr,
		 "Unable to open file(s).\n" );

		goto on_error;
	}
	if( target_filename != NULL )
	{
		delta_segment_filename_length = libcstring_system_string_length(
		                                 target_filename );

#if defined( LIBCSTRING_HAVE_WIDE_SYSTEM_CHARACTER )
		if( libewf_handle_set_delta_segment_filename_wide(
		     handle,
		     target_filename,
		     delta_segment_filename_length,
		     &error ) != 1 )
#else
		if( libewf_handle_set_delta_segment_filename(
		     handle,
		     target_filename,
		     delta_segment_filename_length,
		     &error ) != 1 )
#endif
		{
			fprintf(
			 stderr,
			 "Unable to set delta segment filename.\n" );

			goto on_error;
		}
	}
	if( libewf_handle_get_media_size(
	     handle,
	     &media_size,
	     &error ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to retrieve media size.\n" );

		goto on_error;
	}
	if( media_size > (size64_t) INT64_MAX )
	{
		fprintf(
		 stderr,
		 "Media size exceeds maximum.\n" );

		goto on_error;
	}
	if( libewf_handle_get_chunk_size(
	     handle,
	     &chunk_size,
	     &error ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to retrieve chunk size.\n" );

		goto on_error;
	}
	if( chunk_size == 0 )
	{
		fprintf(
		 stderr,
		 "Invalid chunk size.\n" );

		goto on_error;
	}
	fprintf(
	 stdout,
	 "Media size: %" PRIu64 " bytes\n",
	 media_size );

	/* Case 0: test full read
	 */

	/* Test: offset: 0 size: <media_size>
	 * Expected result: offset: 0 size: <media_size>
	 */
	read_offset = 0;
	read_size   = media_size;

	if( ewf_test_read_write_buffer_at_offset(
	     handle,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read/write buffer.\n" );

		goto on_error;
	}
	if( ewf_test_read_write_buffer_at_offset(
	     handle,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read/write buffer.\n" );

		goto on_error;
	}

	/* Case 1: test random read
	 */

	/* Test: offset: <media_size / 7> size: <media_size / 2>
	 * Expected result: offset: <media_size / 7> size: <media_size / 2>
	 */
	read_offset = (off64_t) ( media_size / 7 );
	read_size   = media_size / 2;

	if( ewf_test_read_write_buffer_at_offset(
	     handle,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read/write buffer.\n" );

		goto on_error;
	}
	if( ewf_test_read_write_buffer_at_offset(
	     handle,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read/write buffer.\n" );

		goto on_error;
	}

	/* Case 2: test read buffer beyond media size
	 */
	if( media_size < 1024 )
	{
		/* Test: offset: <media_size - 1024> size: 4096
		 * Expected result: offset: -1 size: <undetermined>
		 */
		read_offset = (off64_t) ( media_size - 1024 );
		read_size   = 4096;

		if( ewf_test_read_write_buffer_at_offset(
		     handle,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     -1,
		     (size64_t) -1 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write buffer.\n" );

			goto on_error;
		}
		if( ewf_test_read_write_buffer_at_offset(
		     handle,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     -1,
		     (size64_t) -1 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write buffer.\n" );

			goto on_error;
		}
	}
	else
	{
		/* Test: offset: <media_size - 1024> size: 4096
		 * Expected result: offset: <media_size - 1024> size: 1024
		 */
		read_offset = (off64_t) ( media_size - 1024 );
		read_size   = 4096;

		if( ewf_test_read_write_buffer_at_offset(
		     handle,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     1024 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write buffer.\n" );

			goto on_error;
		}
		if( ewf_test_read_write_buffer_at_offset(
		     handle,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     1024 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write buffer.\n" );

			goto on_error;
		}
	}
	fprintf(
	 stdout,
	 "\nChunk size: %" PRIu32 " bytes\n",
	 chunk_size );

	/* Case 0: test full read
	 */

	/* Test: offset: 0 size: <media_size>
	 * Expected result: offset: 0 size: <media_size>
	 */
	read_offset = 0;
	read_size   = media_size;

	if( ewf_test_read_write_chunk_at_offset(
	     handle,
	     chunk_size,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read/write chunk.\n" );

		goto on_error;
	}
	if( ewf_test_read_write_chunk_at_offset(
	     handle,
	     chunk_size,
	     read_offset,
	     SEEK_SET,
	     read_size,
	     read_offset,
	     read_size ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to test read/write chunk.\n" );

		goto on_error;
	}

	/* Case 1: test random read
	 */

	/* Test: offset: <( ( media_size / 7 ) / chunk_size ) * chunk_size> size: <( ( ( media_size / 2 ) / chunk_size ) + 1 ) * chunk_size>
	 * Expected result: offset: <( ( media_size / 7 ) / chunk_size ) * chunk_size> size: <( ( ( media_size / 2 ) / chunk_size ) + 1 ) * chunk_size>
	 */
	read_offset = (off64_t) ( ( media_size / 7 ) / chunk_size ) * chunk_size;
	read_size   = ( ( ( media_size / 2 ) / chunk_size ) + 1 ) * chunk_size;

	if( media_size == 0 )
	{
		if( ewf_test_read_write_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     0 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write chunk.\n" );

			goto on_error;
		}
		if( ewf_test_read_write_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     0 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write chunk.\n" );

			goto on_error;
		}
	}
	else
	{
		if( ewf_test_read_write_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     read_size ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write chunk.\n" );

			goto on_error;
		}
		if( ewf_test_read_write_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     read_offset,
		     read_size ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write chunk.\n" );

			goto on_error;
		}
	}
	/* Case 2: test read chunk beyond media size
	 */
	if( media_size < 1024 )
	{
		/* Test: offset: <media_size - 1024> size: chunk_size
		 * Expected result: offset: -1 size: <undetermined>
		 */
		read_offset = (off64_t) ( media_size - 1024 );
		read_size   = chunk_size;

		if( ewf_test_read_write_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     -1,
		     (size64_t) -1 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write chunk.\n" );

			goto on_error;
		}
		if( ewf_test_read_write_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     -1,
		     (size64_t) -1 ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write chunk.\n" );

			goto on_error;
		}
	}
	else
	{
		/* Test: offset: <media_size - 1024> size: chunk_size
		 * Expected result: offset: <media_size - 1024> size: chunk size or media_size % chunk_size
		 */
		read_offset = (off64_t) ( media_size - 1024 );
		read_size   = chunk_size;

		if( ewf_test_read_write_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     (off64_t) ( media_size - 1024 ),
		     ( ( media_size % chunk_size ) == 0 ) ? chunk_size : media_size % chunk_size ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write chunk.\n" );

			goto on_error;
		}
		if( ewf_test_read_write_chunk_at_offset(
		     handle,
		     chunk_size,
		     read_offset,
		     SEEK_SET,
		     read_size,
		     (off64_t) ( media_size - 1024 ),
		     ( ( media_size % chunk_size ) == 0 ) ? chunk_size : media_size % chunk_size ) != 1 )
		{
			fprintf(
			 stderr,
			 "Unable to test read/write chunk.\n" );

			goto on_error;
		}
	}
	/* Clean up
	 */
	if( libewf_handle_close(
	     handle,
	     &error ) != 0 )
	{
		fprintf(
		 stderr,
		 "Unable to close file(s).\n" );

		goto on_error;
	}
	if( libewf_handle_free(
	     &handle,
	     &error ) != 1 )
	{
		fprintf(
		 stderr,
		 "Unable to free handle.\n" );

		goto on_error;
	}
	return( EXIT_SUCCESS );

on_error:
	if( error != NULL )
	{
		libewf_error_backtrace_fprint(
		 error,
		 stderr );
		libewf_error_free(
		 &error );
	}
	if( handle != NULL )
	{
		libewf_handle_close(
		 handle,
		 NULL );
		libewf_handle_free(
		 &handle,
		 NULL );
	}
	return( EXIT_FAILURE );
}