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-rw-r--r--exfat/fsck/main.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/exfat/fsck/main.c b/exfat/fsck/main.c
new file mode 100644
index 000000000..c90e3f94b
--- /dev/null
+++ b/exfat/fsck/main.c
@@ -0,0 +1,172 @@
+/*
+ main.c (02.09.09)
+ exFAT file system checker.
+
+ Copyright (C) 2011, 2012 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 3 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, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <stdio.h>
+#include <string.h>
+#include <exfat.h>
+#include <exfatfs.h>
+#include <inttypes.h>
+
+#define exfat_debug(format, ...)
+
+uint64_t files_count, directories_count;
+
+static int nodeck(struct exfat* ef, struct exfat_node* node)
+{
+ 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;
+
+ while (clusters--)
+ {
+ if (CLUSTER_INVALID(c))
+ {
+ char name[EXFAT_NAME_MAX + 1];
+
+ exfat_get_name(node, name, EXFAT_NAME_MAX);
+ 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[EXFAT_NAME_MAX + 1];
+
+ exfat_get_name(node, name, EXFAT_NAME_MAX);
+ 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;
+ int rc;
+ size_t path_length;
+ char* entry_path;
+
+ if (exfat_lookup(ef, &parent, path) != 0)
+ 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);
+ if (nodeck(ef, parent) != 0)
+ return;
+
+ path_length = strlen(path);
+ entry_path = malloc(path_length + 1 + EXFAT_NAME_MAX);
+ if (entry_path == NULL)
+ {
+ 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);
+ exfat_error("failed to open directory `%s'", path);
+ return;
+ }
+ while ((node = exfat_readdir(ef, &it)))
+ {
+ exfat_get_name(node, entry_path + path_length + 1, 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, entry_path);
+ }
+ else
+ {
+ files_count++;
+ nodeck(ef, node);
+ }
+ exfat_put_node(ef, node);
+ }
+ exfat_closedir(ef, &it);
+ exfat_put_node(ef, parent);
+ free(entry_path);
+}
+
+static void fsck(struct exfat* 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[])
+{
+ char** pp;
+ const char* spec = NULL;
+ struct exfat ef;
+
+ printf("exfatfsck %u.%u.%u\n",
+ EXFAT_VERSION_MAJOR, EXFAT_VERSION_MINOR, EXFAT_VERSION_PATCH);
+
+ for (pp = argv + 1; *pp; pp++)
+ {
+ if (strcmp(*pp, "-v") == 0)
+ {
+ puts("Copyright (C) 2011, 2012 Andrew Nayenko");
+ return 0;
+ }
+ else if (spec == NULL)
+ spec = *pp;
+ else
+ usage(argv[0]);
+ }
+ if (spec == NULL)
+ usage(argv[0]);
+
+ if (exfat_mount(&ef, spec, "ro") != 0)
+ return 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)
+ {
+ printf("ERRORS FOUND: %d.\n", exfat_errors);
+ return 1;
+ }
+ puts("No errors found.");
+ return 0;
+}