1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2019 Namjae Jeon <linkinjeon@kernel.org>
14 #include "exfat_ondisk.h"
17 static void usage(void)
19 fprintf(stderr, "Usage: tune.exfat\n");
20 fprintf(stderr, "\t-l | --print-label Print volume label\n");
21 fprintf(stderr, "\t-L | --set-label=label Set volume label\n");
22 fprintf(stderr, "\t-i | --print-serial Print volume serial\n");
23 fprintf(stderr, "\t-L | --set-serial=value Set volume serial\n");
24 fprintf(stderr, "\t-V | --version Show version\n");
25 fprintf(stderr, "\t-v | --verbose Print debug\n");
26 fprintf(stderr, "\t-h | --help Show help\n");
31 static struct option opts[] = {
32 {"print-label", no_argument, NULL, 'l' },
33 {"set-label", required_argument, NULL, 'L' },
34 {"print-serial", no_argument, NULL, 'i' },
35 {"set-serial", required_argument, NULL, 'I' },
36 {"version", no_argument, NULL, 'V' },
37 {"verbose", no_argument, NULL, 'v' },
38 {"help", no_argument, NULL, 'h' },
39 {"?", no_argument, NULL, '?' },
43 int main(int argc, char *argv[])
46 int ret = EXIT_FAILURE;
47 struct exfat_blk_dev bd;
48 struct exfat_user_input ui;
49 bool version_only = false;
51 char label_input[VOLUME_LABEL_BUFFER_SIZE];
56 if (!setlocale(LC_CTYPE, ""))
57 exfat_err("failed to init locale/codeset\n");
60 while ((c = getopt_long(argc, argv, "I:iL:lVvh", opts, NULL)) != EOF)
63 flags = EXFAT_GET_VOLUME_LABEL;
66 snprintf(label_input, sizeof(label_input), "%s",
68 flags = EXFAT_SET_VOLUME_LABEL;
71 flags = EXFAT_GET_VOLUME_SERIAL;
74 ui.volume_serial = strtoul(optarg, NULL, 0);
75 flags = EXFAT_SET_VOLUME_SERIAL;
81 print_level = EXFAT_DEBUG;
96 memset(ui.dev_name, 0, sizeof(ui.dev_name));
97 snprintf(ui.dev_name, sizeof(ui.dev_name), "%s", argv[argc - 1]);
99 ret = exfat_get_blk_dev_info(&ui, &bd);
103 /* Mode to change or display volume serial */
104 if (flags == EXFAT_GET_VOLUME_SERIAL) {
105 ret = exfat_show_volume_serial(&bd, &ui);
107 } else if (flags == EXFAT_SET_VOLUME_SERIAL) {
108 ret = exfat_set_volume_serial(&bd, &ui);
112 root_clu_off = exfat_get_root_entry_offset(&bd);
113 if (root_clu_off < 0)
116 if (flags == EXFAT_GET_VOLUME_LABEL)
117 ret = exfat_show_volume_label(&bd, root_clu_off);
118 else if (flags == EXFAT_SET_VOLUME_LABEL)
119 ret = exfat_set_volume_label(&bd, label_input, root_clu_off);