/* Tests the libvshadow_error_free function
* Returns 1 if successful or 0 if not
*/
int vshadow_test_error_free(
void )
{
/* Test invocation of function only
*/
libvshadow_error_free(
NULL );
return( 1 );
}
/* Tests libvshadow_store_seek_offset
* Returns 1 if successful, 0 if not or -1 on error
*/
int vshadow_test_seek_offset(
libvshadow_store_t *store,
off64_t input_offset,
int input_whence,
off64_t expected_offset )
{
libvshadow_error_t *error = NULL;
off64_t result_offset = 0;
int result = 0;
if( store == NULL )
{
return( -1 );
}
result_offset = libvshadow_store_seek_offset(
store,
input_offset,
input_whence,
&error );
if( expected_offset != result_offset )
{
fprintf(
stderr,
"Unexpected result offset: %" PRIi64 "\n",
result_offset );
}
else
{
result = 1;
}
if( error != NULL )
{
if( result != 1 )
{
libvshadow_error_backtrace_fprint(
error,
stderr );
}
libvshadow_error_free(
&error );
}
return( result );
}
/* Tests libvshadow_store_read_buffer
* Returns 1 if successful, 0 if not or -1 on error
*/
int vshadow_test_read_buffer(
libvshadow_store_t *store,
size64_t input_size,
size64_t expected_size )
{
uint8_t buffer[ VSHADOW_TEST_READ_BUFFER_SIZE ];
libvshadow_error_t *error = NULL;
size64_t remaining_size = 0;
size64_t result_size = 0;
size_t read_size = 0;
ssize_t read_count = 0;
int result = 0;
if( store == NULL )
{
return( -1 );
}
remaining_size = input_size;
while( remaining_size > 0 )
{
read_size = VSHADOW_TEST_READ_BUFFER_SIZE;
if( remaining_size < (size64_t) read_size )
{
read_size = (size_t) remaining_size;
}
read_count = libvshadow_store_read_buffer(
store,
buffer,
read_size,
&error );
if( read_count < 0 )
{
break;
}
remaining_size -= (size64_t) read_count;
result_size += (size64_t) read_count;
if( read_count != (ssize_t) read_size )
{
break;
}
}
if( expected_size != result_size )
{
fprintf(
stderr,
"Unexpected read count: %" PRIu64 "\n",
result_size );
}
else
{
result = 1;
}
if( error != NULL )
{
if( result != 1 )
{
libvshadow_error_backtrace_fprint(
error,
stderr );
}
libvshadow_error_free(
&error );
}
return( result );
}
/* Tests libvshadow_store_read_buffer_at_offset
* Returns 1 if successful, 0 if not or -1 on error
*/
int vshadow_test_read_buffer_at_offset(
libvshadow_store_t *store,
off64_t input_offset,
size64_t input_size,
off64_t expected_offset,
size64_t expected_size )
{
uint8_t buffer[ VSHADOW_TEST_READ_BUFFER_SIZE ];
libvshadow_error_t *error = NULL;
off64_t result_offset = 0;
size64_t remaining_size = 0;
size64_t result_size = 0;
size_t read_size = 0;
ssize_t read_count = 0;
int result = 0;
if( store == NULL )
{
return( -1 );
}
remaining_size = input_size;
fprintf(
stdout,
"Testing reading buffer at offset: %" PRIi64 " with size: %" PRIu64 "\t",
input_offset,
input_size );
while( remaining_size > 0 )
{
read_size = VSHADOW_TEST_READ_BUFFER_SIZE;
if( remaining_size < (size64_t) read_size )
{
read_size = (size_t) remaining_size;
}
read_count = libvshadow_store_read_buffer_at_offset(
store,
buffer,
read_size,
input_offset,
&error );
if( read_count < 0 )
{
break;
}
input_offset += (size64_t) read_count;
remaining_size -= (size64_t) read_count;
result_size += (size64_t) read_count;
if( read_count != (ssize_t) read_size )
{
break;
}
}
if( libvshadow_store_get_offset(
store,
&result_offset,
&error ) != 1 )
{
result = -1;
}
if( expected_offset != result_offset )
{
fprintf(
stderr,
"Unexpected offset: %" PRIi64 "\n",
result_offset );
}
else if( expected_size != result_size )
{
fprintf(
stderr,
"Unexpected read count: %" PRIu64 "\n",
result_size );
}
else
{
result = 1;
}
if( result == 1 )
{
fprintf(
stdout,
"(PASS)" );
}
else
{
fprintf(
stdout,
"(FAIL)" );
}
fprintf(
stdout,
"\n" );
if( error != NULL )
{
if( result != 1 )
{
libvshadow_error_backtrace_fprint(
error,
stderr );
}
libvshadow_error_free(
&error );
}
return( result );
}
/* Tests libvshadow_store_seek_offset
* Returns 1 if successful, 0 if not or -1 on error
*/
int vshadow_test_seek_offset(
libvshadow_store_t *store,
off64_t input_offset,
int input_whence,
off64_t output_offset )
{
libvshadow_error_t *error = NULL;
const char *whence_string = NULL;
off64_t result_offset = 0;
int result = 0;
if( store == NULL )
{
return( -1 );
}
if( input_whence == SEEK_CUR )
{
whence_string = "SEEK_CUR";
}
else if( input_whence == SEEK_END )
{
whence_string = "SEEK_END";
}
else if( input_whence == SEEK_SET )
{
whence_string = "SEEK_SET";
}
else
{
whence_string = "UNKNOWN";
}
fprintf(
stdout,
"Testing seek of offset: %" PRIi64 " and whence: %s\t",
input_offset,
whence_string );
result_offset = libvshadow_store_seek_offset(
store,
input_offset,
input_whence,
&error );
if( result_offset == output_offset )
{
result = 1;
}
if( result != 0 )
{
fprintf(
stdout,
"(PASS)" );
}
else
{
fprintf(
stdout,
"(FAIL)" );
}
fprintf(
stdout,
"\n" );
if( error != NULL)
{
if( result != 1 )
{
libvshadow_error_backtrace_fprint(
error,
stderr );
}
libvshadow_error_free(
&error );
}
return( result );
}
int main( int argc, char * const argv[] )
#endif
{
libvshadow_error_t *error = NULL;
libvshadow_store_t *store = NULL;
libvshadow_volume_t *volume = NULL;
size64_t volume_size = 0;
int number_of_stores = 0;
if( argc < 2 )
{
fprintf(
stderr,
"Missing filename.\n" );
return( EXIT_FAILURE );
}
#if defined( HAVE_DEBUG_OUTPUT ) && defined( VSHADOW_TEST_SEEK_VERBOSE )
libvshadow_notify_set_verbose(
1 );
libvshadow_notify_set_stream(
stderr,
NULL );
#endif
/* Initialization
*/
if( libvshadow_volume_initialize(
&volume,
&error ) != 1 )
{
fprintf(
stderr,
"Unable to create volume.\n" );
goto on_error;
}
#if defined( LIBCSTRING_HAVE_WIDE_SYSTEM_CHARACTER )
if( libvshadow_volume_open_wide(
volume,
argv[ 1 ],
LIBVSHADOW_OPEN_READ,
&error ) != 1 )
#else
if( libvshadow_volume_open(
volume,
argv[ 1 ],
LIBVSHADOW_OPEN_READ,
&error ) != 1 )
#endif
{
fprintf(
stderr,
"Unable to open volume.\n" );
goto on_error;
}
if( libvshadow_volume_get_number_of_stores(
volume,
&number_of_stores,
&error ) != 1 )
{
fprintf(
stderr,
"Unable to retrieve number of stores.\n" );
goto on_error;
}
if( libvshadow_volume_get_store(
volume,
number_of_stores - 1,
&store,
&error ) != 1 )
{
fprintf(
stderr,
"Unable to retrieve store: %d.\n",
number_of_stores - 1 );
goto on_error;
}
if( libvshadow_volume_get_size(
volume,
&volume_size,
&error ) != 1 )
{
fprintf(
stderr,
"Unable to retrieve volume size.\n" );
goto on_error;
}
if( volume_size > (size64_t) INT64_MAX )
{
fprintf(
stderr,
"Volume size exceeds maximum.\n" );
goto on_error;
}
/* Test: SEEK_SET offset: 0
* Expected result: 0
*/
if( vshadow_test_seek_offset(
store,
0,
SEEK_SET,
0 ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_SET offset: <volume_size>
* Expected result: <volume_size>
*/
if( vshadow_test_seek_offset(
store,
(off64_t) volume_size,
SEEK_SET,
(off64_t) volume_size ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_SET offset: <volume_size / 5>
* Expected result: <volume_size / 5>
*/
if( vshadow_test_seek_offset(
store,
(off64_t) ( volume_size / 5 ),
SEEK_SET,
(off64_t) ( volume_size / 5 ) ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_SET offset: <volume_size + 987>
* Expected result: <volume_size + 987>
*/
if( vshadow_test_seek_offset(
store,
(off64_t) ( volume_size + 987 ),
SEEK_SET,
(off64_t) ( volume_size + 987 ) ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_SET offset: -987
* Expected result: -1
*/
if( vshadow_test_seek_offset(
store,
-987,
SEEK_SET,
-1 ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_CUR offset: 0
* Expected result: <volume_size + 987>
*/
if( vshadow_test_seek_offset(
store,
0,
SEEK_CUR,
(off64_t) ( volume_size + 987 ) ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_CUR offset: <-1 * (volume_size + 987)>
* Expected result: 0
*/
if( vshadow_test_seek_offset(
store,
-1 * (off64_t) ( volume_size + 987 ),
SEEK_CUR,
0 ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_CUR offset: <volume_size / 3>
* Expected result: <volume_size / 3>
*/
if( vshadow_test_seek_offset(
store,
(off64_t) ( volume_size / 3 ),
SEEK_CUR,
(off64_t) ( volume_size / 3 ) ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
if( volume_size == 0 )
{
/* Test: SEEK_CUR offset: <-2 * (volume_size / 3)>
* Expected result: 0
*/
if( vshadow_test_seek_offset(
store,
-2 * (off64_t) ( volume_size / 3 ),
SEEK_CUR,
0 ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
}
else
{
/* Test: SEEK_CUR offset: <-2 * (volume_size / 3)>
* Expected result: -1
*/
if( vshadow_test_seek_offset(
store,
-2 * (off64_t) ( volume_size / 3 ),
SEEK_CUR,
-1 ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
}
/* Test: SEEK_END offset: 0
* Expected result: <volume_size>
*/
if( vshadow_test_seek_offset(
store,
0,
SEEK_END,
(off64_t) volume_size ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_END offset: <-1 * volume_size>
* Expected result: 0
*/
if( vshadow_test_seek_offset(
store,
-1 * (off64_t) volume_size,
SEEK_END,
0 ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_END offset: <-1 * (volume_size / 4)>
* Expected result: <volume_size - (volume_size / 4)>
*/
if( vshadow_test_seek_offset(
store,
-1 * (off64_t) ( volume_size / 4 ),
SEEK_END,
(off64_t) volume_size - (off64_t) ( volume_size / 4 ) ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_END offset: 542
* Expected result: <volume_size + 542>
*/
if( vshadow_test_seek_offset(
store,
542,
SEEK_END,
(off64_t) ( volume_size + 542 ) ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: SEEK_END offset: <-1 * (volume_size + 542)>
* Expected result: -1
*/
if( vshadow_test_seek_offset(
store,
-1 * (off64_t) ( volume_size + 542 ),
SEEK_END,
-1 ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Test: UNKNOWN (88) offset: 0
* Expected result: -1
*/
if( vshadow_test_seek_offset(
store,
0,
88,
-1 ) != 1 )
{
fprintf(
stderr,
"Unable to test seek offset.\n" );
goto on_error;
}
/* Clean up
*/
if( libvshadow_store_free(
&store,
&error ) != 1 )
{
fprintf(
stderr,
"Unable to free store.\n" );
goto on_error;
}
if( libvshadow_volume_close(
volume,
&error ) != 0 )
{
fprintf(
stderr,
"Unable to close volume.\n" );
goto on_error;
}
if( libvshadow_volume_free(
&volume,
&error ) != 1 )
{
fprintf(
stderr,
"Unable to free volume.\n" );
goto on_error;
}
return( EXIT_SUCCESS );
on_error:
if( error != NULL )
{
libvshadow_error_backtrace_fprint(
error,
stderr );
libvshadow_error_free(
&error );
}
if( store != NULL )
{
libvshadow_store_free(
&store,
NULL );
}
if( volume != NULL )
{
libvshadow_volume_close(
volume,
NULL );
libvshadow_volume_free(
&volume,
NULL );
}
return( EXIT_FAILURE );
}
