uct.c (09.11.10)
Upper Case Table creation code.
- Copyright (C) 2009, 2010 Andrew Nayenko
+ Free exFAT implementation.
+ Copyright (C) 2011-2014 Andrew Nayenko
- This program is free software: you can redistribute it and/or modify
+ This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
+ the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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 General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#include <unistd.h>
-#include <errno.h>
-#include "mkexfat.h"
+#include "uct.h"
#include "uctc.h"
-off_t uct_alignment(void)
+static off_t uct_alignment(void)
{
- return CLUSTER_SIZE(sb);
+ return get_cluster_size();
}
-off_t uct_size(void)
+static off_t uct_size(void)
{
return sizeof(upcase_table);
}
-static le32_t uct_checksum(void)
-{
- size_t i;
- uint32_t sum = 0;
-
- for (i = 0; i < sizeof(upcase_table); i++)
- sum = ((sum << 31) | (sum >> 1)) + upcase_table[i];
- return cpu_to_le32(sum);
-}
-
-int uct_write(struct exfat_dev* dev, off_t base)
+static int uct_write(struct exfat_dev* dev)
{
if (exfat_write(dev, upcase_table, sizeof(upcase_table)) < 0)
- return errno;
- upcase_entry.checksum = uct_checksum();
- upcase_entry.start_cluster = cpu_to_le32(OFFSET_TO_CLUSTER(base));
- upcase_entry.size = cpu_to_le64(sizeof(upcase_table));
+ {
+ exfat_error("failed to write upcase table of %zu bytes",
+ sizeof(upcase_table));
+ return 1;
+ }
return 0;
}
+
+const struct fs_object uct =
+{
+ .get_alignment = uct_alignment,
+ .get_size = uct_size,
+ .write = uct_write,
+};