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bigbiff bigbiff9c754052013-01-09 09:09:08 -05001/*
2 main.c (02.09.09)
3 exFAT file system checker.
4
bigbiff bigbiffca829c42013-01-28 08:14:25 -05005 Copyright (C) 2011-2013 Andrew Nayenko
bigbiff bigbiff9c754052013-01-09 09:09:08 -05006
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.
11
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.
16
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/>.
19*/
20
21#include <stdio.h>
22#include <string.h>
23#include <exfat.h>
24#include <exfatfs.h>
25#include <inttypes.h>
26
27#define exfat_debug(format, ...)
28
29uint64_t files_count, directories_count;
30
31static int nodeck(struct exfat* ef, struct exfat_node* node)
32{
33 const cluster_t cluster_size = CLUSTER_SIZE(*ef->sb);
34 cluster_t clusters = (node->size + cluster_size - 1) / cluster_size;
35 cluster_t c = node->start_cluster;
36 int rc = 0;
37
38 while (clusters--)
39 {
40 if (CLUSTER_INVALID(c))
41 {
42 char name[EXFAT_NAME_MAX + 1];
43
44 exfat_get_name(node, name, EXFAT_NAME_MAX);
45 exfat_error("file `%s' has invalid cluster 0x%x", name, c);
46 rc = 1;
47 break;
48 }
49 if (BMAP_GET(ef->cmap.chunk, c - EXFAT_FIRST_DATA_CLUSTER) == 0)
50 {
51 char name[EXFAT_NAME_MAX + 1];
52
53 exfat_get_name(node, name, EXFAT_NAME_MAX);
54 exfat_error("cluster 0x%x of file `%s' is not allocated", c, name);
55 rc = 1;
56 }
57 c = exfat_next_cluster(ef, node, c);
58 }
59 return rc;
60}
61
62static void dirck(struct exfat* ef, const char* path)
63{
64 struct exfat_node* parent;
65 struct exfat_node* node;
66 struct exfat_iterator it;
67 int rc;
68 size_t path_length;
69 char* entry_path;
70
71 if (exfat_lookup(ef, &parent, path) != 0)
72 exfat_bug("directory `%s' is not found", path);
73 if (!(parent->flags & EXFAT_ATTRIB_DIR))
74 exfat_bug("`%s' is not a directory (0x%x)", path, parent->flags);
75 if (nodeck(ef, parent) != 0)
76 return;
77
78 path_length = strlen(path);
79 entry_path = malloc(path_length + 1 + EXFAT_NAME_MAX);
80 if (entry_path == NULL)
81 {
82 exfat_error("out of memory");
83 return;
84 }
85 strcpy(entry_path, path);
86 strcat(entry_path, "/");
87
88 rc = exfat_opendir(ef, parent, &it);
89 if (rc != 0)
90 {
91 free(entry_path);
92 exfat_put_node(ef, parent);
93 exfat_error("failed to open directory `%s'", path);
94 return;
95 }
96 while ((node = exfat_readdir(ef, &it)))
97 {
98 exfat_get_name(node, entry_path + path_length + 1, EXFAT_NAME_MAX);
99 exfat_debug("%s: %s, %"PRIu64" bytes, cluster %u", entry_path,
100 IS_CONTIGUOUS(*node) ? "contiguous" : "fragmented",
101 node->size, node->start_cluster);
102 if (node->flags & EXFAT_ATTRIB_DIR)
103 {
104 directories_count++;
105 dirck(ef, entry_path);
106 }
107 else
108 {
109 files_count++;
110 nodeck(ef, node);
111 }
112 exfat_put_node(ef, node);
113 }
114 exfat_closedir(ef, &it);
115 exfat_put_node(ef, parent);
116 free(entry_path);
117}
118
119static void fsck(struct exfat* ef)
120{
121 exfat_print_info(ef->sb, exfat_count_free_clusters(ef));
122 dirck(ef, "");
123}
124
125static void usage(const char* prog)
126{
127 fprintf(stderr, "Usage: %s [-v] <device>\n", prog);
128 exit(1);
129}
130
131int main(int argc, char* argv[])
132{
133 char** pp;
134 const char* spec = NULL;
135 struct exfat ef;
136
137 printf("exfatfsck %u.%u.%u\n",
138 EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
139
140 for (pp = argv + 1; *pp; pp++)
141 {
142 if (strcmp(*pp, "-v") == 0)
143 {
bigbiff bigbiffca829c42013-01-28 08:14:25 -0500144 puts("Copyright (C) 2011-2013 Andrew Nayenko");
bigbiff bigbiff9c754052013-01-09 09:09:08 -0500145 return 0;
146 }
147 else if (spec == NULL)
148 spec = *pp;
149 else
150 usage(argv[0]);
151 }
152 if (spec == NULL)
153 usage(argv[0]);
154
155 if (exfat_mount(&ef, spec, "ro") != 0)
156 return 1;
157
158 printf("Checking file system on %s.\n", spec);
159 fsck(&ef);
160 exfat_unmount(&ef);
161 printf("Totally %"PRIu64" directories and %"PRIu64" files.\n",
162 directories_count, files_count);
163
164 fputs("File system checking finished. ", stdout);
165 if (exfat_errors != 0)
166 {
167 printf("ERRORS FOUND: %d.\n", exfat_errors);
168 return 1;
169 }
170 puts("No errors found.");
171 return 0;
172}