+
+static int check_bad_char(char w)
+{
+ return (w < 0x0020) || (w == '*') || (w == '?') || (w == '<') ||
+ (w == '>') || (w == '|') || (w == '"') || (w == ':') ||
+ (w == '/') || (w == '\\');
+}
+
+static char *get_rename_from_user(struct exfat_de_iter *iter)
+{
+ char *rename = malloc(ENTRY_NAME_MAX + 2);
+
+ if (!rename)
+ return NULL;
+
+retry:
+ /* +2 means LF(Line Feed) and NULL terminator */
+ memset(rename, 0x1, ENTRY_NAME_MAX + 2);
+ printf("New name: ");
+ if (fgets(rename, ENTRY_NAME_MAX + 2, stdin)) {
+ int i, len, err;
+ struct exfat_lookup_filter filter;
+
+ len = strlen(rename);
+ /* Remove LF in filename */
+ rename[len - 1] = '\0';
+ for (i = 0; i < len - 1; i++) {
+ if (check_bad_char(rename[i])) {
+ printf("filename contain invalid character(%c)\n", rename[i]);
+ goto retry;
+ }
+ }
+
+ exfat_de_iter_flush(iter);
+ err = exfat_lookup_file(iter->exfat, iter->parent, rename, &filter);
+ if (!err) {
+ printf("file(%s) already exists, retry to insert name\n", rename);
+ goto retry;
+ }
+ }
+
+ return rename;
+}
+
+static char *generate_rename(struct exfat_de_iter *iter)
+{
+ char *rename;
+
+ if (iter->invalid_name_num > INVALID_NAME_NUM_MAX)
+ return NULL;
+
+ rename = malloc(ENTRY_NAME_MAX + 1);
+ if (!rename)
+ return NULL;
+
+ while (1) {
+ struct exfat_lookup_filter filter;
+ int err;
+
+ snprintf(rename, ENTRY_NAME_MAX + 1, "FILE%07d.CHK",
+ iter->invalid_name_num++);
+ err = exfat_lookup_file(iter->exfat, iter->parent, rename,
+ &filter);
+ if (!err)
+ continue;
+ break;
+ }
+
+ return rename;
+}
+
+int exfat_repair_rename_ask(struct exfat_fsck *fsck, struct exfat_de_iter *iter,
+ char *old_name, er_problem_code_t prcode, char *error_msg)
+{
+ int num;
+
+ask_again:
+ num = exfat_repair_ask(fsck, prcode, "ERROR: '%s' %s.\n%s",
+ old_name, error_msg,
+ " [1] Insert the name you want to rename.\n"
+ " [2] Automatically renames filename.\n"
+ " [3] Bypass this check(No repair)\n");
+ if (num) {
+ __le16 utf16_name[ENTRY_NAME_MAX];
+ char *rename = NULL;
+ __u16 hash;
+ struct exfat_dentry *dentry;
+ int ret;
+
+ switch (num) {
+ case 1:
+ rename = get_rename_from_user(iter);
+ break;
+ case 2:
+ rename = generate_rename(iter);
+ break;
+ case 3:
+ break;
+ default:
+ exfat_info("select 1 or 2 number instead of %d\n", num);
+ goto ask_again;
+ }
+
+ if (!rename)
+ return -EINVAL;
+
+ exfat_info("%s filename is renamed to %s\n", old_name, rename);
+
+ exfat_de_iter_get_dirty(iter, 2, &dentry);
+
+ memset(utf16_name, 0, sizeof(utf16_name));
+ ret = exfat_utf16_enc(rename, utf16_name, sizeof(utf16_name));
+ free(rename);
+ if (ret < 0)
+ return ret;
+
+ ret >>= 1;
+ memcpy(dentry->name_unicode, utf16_name, ENTRY_NAME_MAX * 2);
+ hash = exfat_calc_name_hash(iter->exfat, utf16_name, ret);
+ exfat_de_iter_get_dirty(iter, 1, &dentry);
+ dentry->stream_name_len = (__u8)ret;
+ dentry->stream_name_hash = cpu_to_le16(hash);
+ return 1;
+
+ }
+
+ return 0;
+}