/*
- * main.c
- * exFAT file system checker.
- *
- * Created by Andrew Nayenko on 02.09.09.
- * This software is distributed under the GNU General Public License
- * version 3 or any later.
- */
+ main.c (02.09.09)
+ exFAT file system checker.
+ Free exFAT implementation.
+ Copyright (C) 2011-2015 Andrew Nayenko
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include <exfat.h>
#include <stdio.h>
#include <string.h>
-#include <exfat.h>
-#include <exfatfs.h>
#include <inttypes.h>
+#include <unistd.h>
#define exfat_debug(format, ...)
-#define MB (1024 * 1024)
-
uint64_t files_count, directories_count;
-static uint64_t bytes2mb(uint64_t bytes)
+static int nodeck(struct exfat* ef, struct exfat_node* node)
{
- return (bytes + MB / 2) / MB;
-}
+ const cluster_t cluster_size = CLUSTER_SIZE(*ef->sb);
+ cluster_t clusters = (node->size + cluster_size - 1) / cluster_size;
+ cluster_t c = node->start_cluster;
+ int rc = 0;
-static void sbck(const struct exfat* ef)
-{
- const uint32_t block_size = (1 << ef->sb->block_bits); /* in bytes */
- const uint32_t cluster_size = CLUSTER_SIZE(*ef->sb); /* in bytes */
- const uint64_t total = (uint64_t) le32_to_cpu(ef->sb->cluster_count) *
- cluster_size;
-
-#if 0 /* low-level info */
- printf("First block %8"PRIu64"\n",
- le64_to_cpu(ef->sb->block_start));
- printf("Blocks count %8"PRIu64"\n",
- le64_to_cpu(ef->sb->block_count));
- printf("FAT first block %8u\n",
- le32_to_cpu(ef->sb->fat_block_start));
- printf("FAT blocks count %8u\n",
- le32_to_cpu(ef->sb->fat_block_count));
- printf("First cluster block %8u\n",
- le32_to_cpu(ef->sb->cluster_block_start));
- printf("Clusters count %8u\n",
- le32_to_cpu(ef->sb->cluster_count));
- printf("First cluster of root %8u\n",
- le32_to_cpu(ef->sb->rootdir_cluster));
-#endif
- printf("Block size %8u bytes\n", block_size);
- printf("Cluster size %8u bytes\n", cluster_size);
- printf("Total space %8"PRIu64" MB\n", bytes2mb(total));
- printf("Used space %8"PRIu64" MB (%hhu%%)\n",
- bytes2mb(total * ef->sb->allocated_percent / 100),
- ef->sb->allocated_percent);
- printf("Free space %8"PRIu64" MB (%hhu%%)\n",
- bytes2mb(total * (100 - ef->sb->allocated_percent) / 100),
- 100 - ef->sb->allocated_percent);
+ while (clusters--)
+ {
+ if (CLUSTER_INVALID(c))
+ {
+ char name[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
+
+ exfat_get_name(node, name, sizeof(name) - 1);
+ exfat_error("file '%s' has invalid cluster 0x%x", name, c);
+ rc = 1;
+ break;
+ }
+ if (BMAP_GET(ef->cmap.chunk, c - EXFAT_FIRST_DATA_CLUSTER) == 0)
+ {
+ char name[UTF8_BYTES(EXFAT_NAME_MAX) + 1];
+
+ exfat_get_name(node, name, sizeof(name) - 1);
+ exfat_error("cluster 0x%x of file '%s' is not allocated", c, name);
+ rc = 1;
+ }
+ c = exfat_next_cluster(ef, node, c);
+ }
+ return rc;
}
static void dirck(struct exfat* ef, const char* path)
struct exfat_node* parent;
struct exfat_node* node;
struct exfat_iterator it;
- char subpath[EXFAT_NAME_MAX + 1];
+ int rc;
+ size_t path_length;
+ char* entry_path;
if (exfat_lookup(ef, &parent, path) != 0)
- exfat_bug("directory `%s' is not found", path);
+ exfat_bug("directory '%s' is not found", path);
if (!(parent->flags & EXFAT_ATTRIB_DIR))
- exfat_bug("`%s' is not a directory (0x%x)", path, parent->flags);
+ exfat_bug("'%s' is not a directory (0x%x)", path, parent->flags);
+ if (nodeck(ef, parent) != 0)
+ {
+ exfat_put_node(ef, parent);
+ return;
+ }
- exfat_opendir(parent, &it);
- while (exfat_readdir(ef, parent, &node, &it) == 0)
+ path_length = strlen(path);
+ entry_path = malloc(path_length + 1 + UTF8_BYTES(EXFAT_NAME_MAX) + 1);
+ if (entry_path == NULL)
{
- strcpy(subpath, path);
- strcat(subpath, "/");
- exfat_get_name(node, subpath + strlen(subpath),
- EXFAT_NAME_MAX - strlen(subpath));
- exfat_debug("%s: %s, %llu bytes, cluster %u", subpath,
+ exfat_put_node(ef, parent);
+ exfat_error("out of memory");
+ return;
+ }
+ strcpy(entry_path, path);
+ strcat(entry_path, "/");
+
+ rc = exfat_opendir(ef, parent, &it);
+ if (rc != 0)
+ {
+ free(entry_path);
+ exfat_put_node(ef, parent);
+ return;
+ }
+ while ((node = exfat_readdir(ef, &it)))
+ {
+ exfat_get_name(node, entry_path + path_length + 1,
+ UTF8_BYTES(EXFAT_NAME_MAX));
+ exfat_debug("%s: %s, %"PRIu64" bytes, cluster %u", entry_path,
IS_CONTIGUOUS(*node) ? "contiguous" : "fragmented",
node->size, node->start_cluster);
if (node->flags & EXFAT_ATTRIB_DIR)
{
directories_count++;
- dirck(ef, subpath);
+ dirck(ef, entry_path);
}
else
+ {
files_count++;
- exfat_put_node(node);
+ nodeck(ef, node);
+ }
+ exfat_put_node(ef, node);
}
- exfat_closedir(&it);
- exfat_put_node(parent);
+ exfat_closedir(ef, &it);
+ exfat_put_node(ef, parent);
+ free(entry_path);
}
static void fsck(struct exfat* ef)
{
- sbck(ef);
+ exfat_print_info(ef->sb, exfat_count_free_clusters(ef));
dirck(ef, "");
}
+static void usage(const char* prog)
+{
+ fprintf(stderr, "Usage: %s [-V] <device>\n", prog);
+ exit(1);
+}
+
int main(int argc, char* argv[])
{
+ int opt;
+ const char* spec = NULL;
struct exfat ef;
- if (argc != 2)
+ printf("exfatfsck %s\n", VERSION);
+
+ while ((opt = getopt(argc, argv, "V")) != -1)
{
- fprintf(stderr, "usage: %s <spec>\n", argv[0]);
- return 1;
+ switch (opt)
+ {
+ case 'V':
+ puts("Copyright (C) 2011-2015 Andrew Nayenko");
+ return 0;
+ default:
+ usage(argv[0]);
+ break;
+ }
}
- printf("exfatck %u.%u\n",
- EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR);
+ if (argc - optind != 1)
+ usage(argv[0]);
+ spec = argv[optind];
- if (exfat_mount(&ef, argv[1]) != 0)
+ if (exfat_mount(&ef, spec, "ro") != 0)
return 1;
- printf("Checking file system on %s.\n", argv[1]);
+ printf("Checking file system on %s.\n", spec);
fsck(&ef);
exfat_unmount(&ef);
printf("Totally %"PRIu64" directories and %"PRIu64" files.\n",
directories_count, files_count);
- fputs("File system checking finished: ", stdout);
- if (exfat_errors == 0)
- puts("seems OK.");
- else
- printf("%d ERROR%s FOUND!!!\n", exfat_errors,
- exfat_errors > 1 ? "S WERE" : " WAS");
+ fputs("File system checking finished. ", stdout);
+ if (exfat_errors != 0)
+ {
+ printf("ERRORS FOUND: %d.\n", exfat_errors);
+ return 1;
+ }
+ puts("No errors found.");
return 0;
}
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