#include "exfat_ondisk.h"
#include "libexfat.h"
+#include "exfat_fs.h"
static void usage(void)
{
struct exfat_blk_dev bd;
struct exfat_user_input ui;
bool version_only = false;
- off_t root_clu_off;
int serial_mode = 0;
int flags = 0;
+ unsigned long volume_serial;
init_user_input(&ui);
if (version_only)
exit(EXIT_FAILURE);
- if (argc < 2)
+ if (argc - optind != 1)
usage();
- memset(ui.dev_name, 0, sizeof(ui.dev_name));
- snprintf(ui.dev_name, sizeof(ui.dev_name), "%s", argv[serial_mode + 1]);
+ ui.dev_name = argv[serial_mode + 1];
ret = exfat_get_blk_dev_info(&ui, &bd);
if (ret < 0)
if (serial_mode) {
/* Mode to change or display volume serial */
if (flags == EXFAT_GET_VOLUME_SERIAL) {
- ret = exfat_show_volume_serial(&bd, &ui);
+ ret = exfat_show_volume_serial(bd.dev_fd);
} else if (flags == EXFAT_SET_VOLUME_SERIAL) {
- ui.volume_serial = strtoul(argv[3], NULL, 0);
+ ret = exfat_parse_ulong(argv[3], &volume_serial);
+ if (volume_serial > UINT_MAX)
+ ret = -ERANGE;
+
+
+ if (ret < 0) {
+ exfat_err("invalid serial number(%s)\n", argv[3]);
+ goto close_fd_out;
+ }
+
+ ui.volume_serial = volume_serial;
ret = exfat_set_volume_serial(&bd, &ui);
}
} else {
- /* Mode to change or display volume label */
- root_clu_off = exfat_get_root_entry_offset(&bd);
- if (root_clu_off < 0)
+ struct exfat *exfat;
+ struct pbr *bs;
+
+ ret = read_boot_sect(&bd, &bs);
+ if (ret)
+ goto close_fd_out;
+
+ exfat = exfat_alloc_exfat(&bd, bs);
+ if (!exfat) {
+ ret = -ENOMEM;
goto close_fd_out;
+ }
+
+ exfat->root = exfat_alloc_inode(ATTR_SUBDIR);
+ if (!exfat->root) {
+ ret = -ENOMEM;
+ goto free_exfat;
+ }
+ exfat->root->first_clus = le32_to_cpu(exfat->bs->bsx.root_cluster);
+ if (exfat_root_clus_count(exfat)) {
+ exfat_err("failed to follow the cluster chain of root\n");
+ exfat_free_inode(exfat->root);
+ ret = -EINVAL;
+ goto free_exfat;
+ }
+
+ /* Mode to change or display volume label */
if (flags == EXFAT_GET_VOLUME_LABEL)
- ret = exfat_show_volume_label(&bd, root_clu_off);
+ ret = exfat_read_volume_label(exfat);
else if (flags == EXFAT_SET_VOLUME_LABEL)
- ret = exfat_set_volume_label(&bd, argv[2], root_clu_off);
+ ret = exfat_set_volume_label(exfat, argv[2]);
+
+free_exfat:
+ if (exfat)
+ exfat_free_exfat(exfat);
}
close_fd_out: