3 Prints detailed information about exFAT volume.
5 Free exFAT implementation.
6 Copyright (C) 2011-2015 Andrew Nayenko
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation, either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License along
19 with this program; if not, write to the Free Software Foundation, Inc.,
20 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
30 static void print_generic_info(const struct exfat_super_block* sb)
32 printf("Volume serial number 0x%08x\n",
33 le32_to_cpu(sb->volume_serial));
34 printf("FS version %hhu.%hhu\n",
35 sb->version.major, sb->version.minor);
36 printf("Sector size %10u\n",
38 printf("Cluster size %10u\n",
42 static void print_sector_info(const struct exfat_super_block* sb)
44 printf("Sectors count %10"PRIu64"\n",
45 le64_to_cpu(sb->sector_count));
48 static void print_cluster_info(const struct exfat_super_block* sb)
50 printf("Clusters count %10u\n",
51 le32_to_cpu(sb->cluster_count));
54 static void print_other_info(const struct exfat_super_block* sb)
56 printf("First sector %10"PRIu64"\n",
57 le64_to_cpu(sb->sector_start));
58 printf("FAT first sector %10u\n",
59 le32_to_cpu(sb->fat_sector_start));
60 printf("FAT sectors count %10u\n",
61 le32_to_cpu(sb->fat_sector_count));
62 printf("First cluster sector %10u\n",
63 le32_to_cpu(sb->cluster_sector_start));
64 printf("Root directory cluster %10u\n",
65 le32_to_cpu(sb->rootdir_cluster));
66 printf("Volume state 0x%04hx\n",
67 le16_to_cpu(sb->volume_state));
68 printf("FATs count %10hhu\n",
70 printf("Drive number 0x%02hhx\n",
72 printf("Allocated space %9hhu%%\n",
73 sb->allocated_percent);
76 static int dump_sb(const char* spec)
78 struct exfat_dev* dev;
79 struct exfat_super_block sb;
81 dev = exfat_open(spec, EXFAT_MODE_RO);
85 if (exfat_read(dev, &sb, sizeof(struct exfat_super_block)) < 0)
88 exfat_error("failed to read from '%s'", spec);
91 if (memcmp(sb.oem_name, "EXFAT ", sizeof(sb.oem_name)) != 0)
94 exfat_error("exFAT file system is not found on '%s'", spec);
98 print_generic_info(&sb);
99 print_sector_info(&sb);
100 print_cluster_info(&sb);
101 print_other_info(&sb);
107 static void dump_sectors(struct exfat* ef)
111 printf("Used sectors ");
112 while (exfat_find_used_sectors(ef, &a, &b) == 0)
113 printf(" %"PRIu64"-%"PRIu64, a, b);
117 static int dump_full(const char* spec, bool used_sectors)
120 uint32_t free_clusters;
121 uint64_t free_sectors;
123 if (exfat_mount(&ef, spec, "ro") != 0)
126 free_clusters = exfat_count_free_clusters(&ef);
127 free_sectors = (uint64_t) free_clusters << ef.sb->spc_bits;
129 printf("Volume label %15s\n", exfat_get_label(&ef));
130 print_generic_info(ef.sb);
131 print_sector_info(ef.sb);
132 printf("Free sectors %10"PRIu64"\n", free_sectors);
133 print_cluster_info(ef.sb);
134 printf("Free clusters %10u\n", free_clusters);
135 print_other_info(ef.sb);
143 static void usage(const char* prog)
145 fprintf(stderr, "Usage: %s [-s] [-u] [-V] <device>\n", prog);
149 int main(int argc, char* argv[])
152 const char* spec = NULL;
153 bool sb_only = false;
154 bool used_sectors = false;
156 printf("dumpexfat %s\n", VERSION);
158 while ((opt = getopt(argc, argv, "suV")) != -1)
169 puts("Copyright (C) 2011-2015 Andrew Nayenko");
175 if (argc - optind != 1)
180 return dump_sb(spec);
182 return dump_full(spec, used_sectors);