3 exFAT file system checker.
5 Copyright (C) 2009, 2010 Andrew Nayenko
7 This program is free software: you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>.
27 #define exfat_debug(format, ...)
29 #define MB (1024 * 1024)
31 uint64_t files_count, directories_count;
33 static uint64_t bytes2mb(uint64_t bytes)
35 return (bytes + MB / 2) / MB;
38 static void sbck(const struct exfat* ef)
40 const uint64_t total = (uint64_t) le32_to_cpu(ef->sb->cluster_count) *
41 CLUSTER_SIZE(*ef->sb);
43 printf("Block size %8u bytes\n", BLOCK_SIZE(*ef->sb));
44 printf("Cluster size %8u bytes\n", CLUSTER_SIZE(*ef->sb));
45 printf("Total space %8"PRIu64" MB\n", bytes2mb(total));
46 printf("Used space %8hhu%%\n", ef->sb->allocated_percent);
49 static void nodeck(struct exfat* ef, struct exfat_node* node)
51 const cluster_t cluster_size = CLUSTER_SIZE(*ef->sb);
52 cluster_t clusters = (node->size + cluster_size - 1) / cluster_size;
53 cluster_t c = node->start_cluster;
57 if (CLUSTER_INVALID(c))
59 char name[EXFAT_NAME_MAX + 1];
61 exfat_get_name(node, name, EXFAT_NAME_MAX);
62 exfat_error("file `%s' has invalid cluster", name);
65 if (BMAP_GET(ef->cmap.chunk, c - EXFAT_FIRST_DATA_CLUSTER) == 0)
67 char name[EXFAT_NAME_MAX + 1];
69 exfat_get_name(node, name, EXFAT_NAME_MAX);
70 exfat_error("cluster 0x%x of file `%s' is not allocated", c, name);
72 c = exfat_next_cluster(ef, node, c);
76 static void dirck(struct exfat* ef, const char* path)
78 struct exfat_node* parent;
79 struct exfat_node* node;
80 struct exfat_iterator it;
85 if (exfat_lookup(ef, &parent, path) != 0)
86 exfat_bug("directory `%s' is not found", path);
87 if (!(parent->flags & EXFAT_ATTRIB_DIR))
88 exfat_bug("`%s' is not a directory (0x%x)", path, parent->flags);
90 path_length = strlen(path);
91 entry_path = malloc(path_length + 1 + EXFAT_NAME_MAX);
92 if (entry_path == NULL)
94 exfat_error("out of memory");
97 strcpy(entry_path, path);
98 strcat(entry_path, "/");
100 rc = exfat_opendir(ef, parent, &it);
103 exfat_put_node(ef, parent);
104 exfat_error("failed to open directory `%s'", path);
107 while ((node = exfat_readdir(ef, &it)))
109 exfat_get_name(node, entry_path + path_length + 1, EXFAT_NAME_MAX);
110 exfat_debug("%s: %s, %"PRIu64" bytes, cluster %u", entry_path,
111 IS_CONTIGUOUS(*node) ? "contiguous" : "fragmented",
112 node->size, node->start_cluster);
113 if (node->flags & EXFAT_ATTRIB_DIR)
116 dirck(ef, entry_path);
121 exfat_put_node(ef, node);
123 exfat_closedir(ef, &it);
124 exfat_put_node(ef, parent);
128 static void fsck(struct exfat* ef)
134 int main(int argc, char* argv[])
140 fprintf(stderr, "usage: %s <spec>\n", argv[0]);
143 printf("exfatfsck %u.%u.%u\n",
144 EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
146 if (exfat_mount(&ef, argv[1], "ro") != 0)
149 printf("Checking file system on %s.\n", argv[1]);
152 printf("Totally %"PRIu64" directories and %"PRIu64" files.\n",
153 directories_count, files_count);
155 fputs("File system checking finished. ", stdout);
156 if (exfat_errors != 0)
158 printf("ERRORS FOUND: %d.\n", exfat_errors);
161 puts("No errors found.");