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dosfs: Fix files with same name as volume name.

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Take care that a file in the root directory with the same name as the
volume name can be found.

Close #3257.
This commit is contained in:
Christian Mauderer
2017-11-28 16:42:00 +01:00
committed by Sebastian Huber
parent c139a70597
commit 004a63efef
2 changed files with 46 additions and 2 deletions
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3
cpukit/libfs/src/dosfs/msdos_misc.c
View File

@@ -1585,7 +1585,8 @@ msdos_find_file_in_directory (
printf ("MSFS:[9.2] checksum, entry_matched:%i, lfn_entry:%i, lfn_checksum:%02x/%02x\n",
entry_matched, lfn_entry, lfn_checksum, msdos_lfn_checksum(entry));
#endif
} else {
} else if ((*MSDOS_DIR_ATTR(entry) & MSDOS_ATTR_VOLUME_ID)
== 0) {
bytes_in_entry = MSDOS_SHORT_NAME_LEN + 1;
bytes_in_entry = msdos_short_entry_to_utf8_name (
converter,

45
testsuites/fstests/fsdosfsname01/init.c
View File

@@ -46,6 +46,7 @@ const char rtems_test_name[] = "FSDOSFSNAME 1";
#define RAMDISK_PATH "/dev/rda"
#define BLOCK_NUM 47
#define BLOCK_SIZE 512
#define VOLUME_LABEL "MyDisk"
#define NUMBER_OF_DIRECTORIES 8
#define NUMBER_OF_FILES 13
@@ -78,7 +79,7 @@ static rtems_resource_snapshot before_mount;
static const msdos_format_request_param_t rqdata = {
.OEMName = "RTEMS",
.VolLabel = "RTEMSDisk",
.VolLabel = VOLUME_LABEL,
.sectors_per_cluster = 2,
.fat_num = 0,
.files_per_root_dir = 0,
@@ -1107,10 +1108,52 @@ static void test_full_8_3_name( void )
rtems_test_assert( rc == 0 );
}
static void test_dir_with_same_name_as_volume_label( void )
{
int rc;
DIR *dirp;
rc = mkdir( MOUNT_DIR "/" VOLUME_LABEL, S_IRWXU | S_IRWXG | S_IRWXO );
rtems_test_assert( rc == 0 );
dirp = opendir( MOUNT_DIR "/" VOLUME_LABEL );
rtems_test_assert( NULL != dirp );
rc = closedir( dirp );
rtems_test_assert( rc == 0 );
rc = unlink( MOUNT_DIR "/" VOLUME_LABEL );
rtems_test_assert( rc == 0 );
}
static void test_file_with_same_name_as_volume_label( void )
{
int rc;
int fd;
fd = open( MOUNT_DIR "/" VOLUME_LABEL, O_RDWR | O_CREAT,
S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH );
rtems_test_assert( fd >= 0 );
rc = close( fd );
rtems_test_assert( rc == 0 );
fd = open( MOUNT_DIR "/" VOLUME_LABEL, O_RDWR );
rtems_test_assert( fd >= 0 );
rc = close( fd );
rtems_test_assert( rc == 0 );
rc = unlink( MOUNT_DIR "/" VOLUME_LABEL );
rtems_test_assert( rc == 0 );
}
static void test_special_cases( void )
{
test_end_of_string_matches();
test_full_8_3_name();
test_file_with_same_name_as_volume_label();
test_dir_with_same_name_as_volume_label();
}
/*