summaryrefslogtreecommitdiffstats
path: root/dosfstools/src/dosfsck.c
diff options
context:
space:
mode:
authorbigbiff bigbiff <bigbiff@teamw.in>2013-01-09 15:09:08 +0100
committerbigbiff bigbiff <bigbiff@teamw.in>2013-01-09 15:09:08 +0100
commit9c754053b07a724bdd98d039f34899d6a49115b7 (patch)
tree464885db361a12d83d60cf152142c765562bb92d /dosfstools/src/dosfsck.c
parentAdd Samsung TouchWiz decryption (diff)
downloadandroid_bootable_recovery-9c754053b07a724bdd98d039f34899d6a49115b7.tar
android_bootable_recovery-9c754053b07a724bdd98d039f34899d6a49115b7.tar.gz
android_bootable_recovery-9c754053b07a724bdd98d039f34899d6a49115b7.tar.bz2
android_bootable_recovery-9c754053b07a724bdd98d039f34899d6a49115b7.tar.lz
android_bootable_recovery-9c754053b07a724bdd98d039f34899d6a49115b7.tar.xz
android_bootable_recovery-9c754053b07a724bdd98d039f34899d6a49115b7.tar.zst
android_bootable_recovery-9c754053b07a724bdd98d039f34899d6a49115b7.zip
Diffstat (limited to 'dosfstools/src/dosfsck.c')
-rw-r--r--dosfstools/src/dosfsck.c224
1 files changed, 224 insertions, 0 deletions
diff --git a/dosfstools/src/dosfsck.c b/dosfstools/src/dosfsck.c
new file mode 100644
index 000000000..a7a59e1a1
--- /dev/null
+++ b/dosfstools/src/dosfsck.c
@@ -0,0 +1,224 @@
+/* dosfsck.c - User interface
+
+ Copyright (C) 1993 Werner Almesberger <werner.almesberger@lrc.di.epfl.ch>
+ Copyright (C) 1998 Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de>
+
+ 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/>.
+
+ On Debian systems, the complete text of the GNU General Public License
+ can be found in /usr/share/common-licenses/GPL-3 file.
+*/
+
+/* FAT32, VFAT, Atari format support, and various fixes additions May 1998
+ * by Roman Hodek <Roman.Hodek@informatik.uni-erlangen.de> */
+
+#include "version.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <getopt.h>
+
+#include "common.h"
+#include "dosfsck.h"
+#include "io.h"
+#include "boot.h"
+#include "fat.h"
+#include "file.h"
+#include "check.h"
+
+int interactive = 0, rw = 0, list = 0, test = 0, verbose = 0, write_immed = 0;
+int atari_format = 0;
+unsigned n_files = 0;
+void *mem_queue = NULL;
+
+#ifdef USE_ANDROID_RETVALS
+unsigned retandroid = 1;
+#else
+unsigned retandroid = 0;
+#endif
+
+static void usage(char *name)
+{
+ fprintf(stderr, "usage: %s [-aAflrtvVwy] [-d path -d ...] "
+ "[-u path -u ...]\n%15sdevice\n", name, "");
+ fprintf(stderr, " -a automatically repair the file system\n");
+ fprintf(stderr, " -A toggle Atari file system format\n");
+ fprintf(stderr, " -d path drop that file\n");
+ fprintf(stderr, " -f ignored\n");
+ fprintf(stderr, " -l list path names\n");
+ fprintf(stderr,
+ " -n no-op, check non-interactively without changing\n");
+ fprintf(stderr, " -p same as -a, for compat with other *fsck\n");
+ fprintf(stderr, " -r interactively repair the file system\n");
+ fprintf(stderr, " -t test for bad clusters\n");
+ fprintf(stderr, " -u path try to undelete that (non-directory) file\n");
+ fprintf(stderr, " -v verbose mode\n");
+ fprintf(stderr, " -V perform a verification pass\n");
+ fprintf(stderr, " -w write changes to disk immediately\n");
+ fprintf(stderr, " -y same as -a, for compat with other *fsck\n");
+ if (retandroid) {
+ exit(1);
+ } else {
+ exit(2);
+ }
+}
+
+/*
+ * ++roman: On m68k, check if this is an Atari; if yes, turn on Atari variant
+ * of MS-DOS filesystem by default.
+ */
+static void check_atari(void)
+{
+#ifdef __mc68000__
+ FILE *f;
+ char line[128], *p;
+
+ if (!(f = fopen("/proc/hardware", "r"))) {
+ perror("/proc/hardware");
+ return;
+ }
+
+ while (fgets(line, sizeof(line), f)) {
+ if (strncmp(line, "Model:", 6) == 0) {
+ p = line + 6;
+ p += strspn(p, " \t");
+ if (strncmp(p, "Atari ", 6) == 0)
+ atari_format = 1;
+ break;
+ }
+ }
+ fclose(f);
+#endif
+}
+
+int main(int argc, char **argv)
+{
+ DOS_FS fs;
+ int salvage_files, verify, c;
+ unsigned n_files_check = 0, n_files_verify = 0;
+ unsigned long free_clusters;
+
+ memset(&fs, 0, sizeof(fs));
+ rw = salvage_files = verify = 0;
+ interactive = 1;
+ check_atari();
+
+ while ((c = getopt(argc, argv, "Aad:flnprtu:vVwy")) != EOF)
+ switch (c) {
+ case 'A': /* toggle Atari format */
+ atari_format = !atari_format;
+ break;
+ case 'a':
+ case 'p':
+ case 'y':
+ rw = 1;
+ interactive = 0;
+ salvage_files = 1;
+ break;
+ case 'd':
+ file_add(optarg, fdt_drop);
+ break;
+ case 'f':
+ salvage_files = 1;
+ break;
+ case 'l':
+ list = 1;
+ break;
+ case 'n':
+ rw = 0;
+ interactive = 0;
+ break;
+ case 'r':
+ rw = 1;
+ interactive = 1;
+ break;
+ case 't':
+ test = 1;
+ break;
+ case 'u':
+ file_add(optarg, fdt_undelete);
+ break;
+ case 'v':
+ verbose = 1;
+ printf("dosfsck " VERSION " (" VERSION_DATE ")\n");
+ break;
+ case 'V':
+ verify = 1;
+ break;
+ case 'w':
+ write_immed = 1;
+ break;
+ default:
+ usage(argv[0]);
+ }
+ if ((test || write_immed) && !rw) {
+ fprintf(stderr, "-t and -w require -a or -r\n");
+ if (retandroid) {
+ exit(1);
+ } else {
+ exit(2);
+ }
+ }
+ if (optind != argc - 1)
+ usage(argv[0]);
+
+ printf("dosfsck " VERSION ", " VERSION_DATE ", FAT32, LFN\n");
+ fs_open(argv[optind], rw);
+ read_boot(&fs);
+ if (verify)
+ printf("Starting check/repair pass.\n");
+ while (read_fat(&fs), scan_root(&fs))
+ qfree(&mem_queue);
+ if (test)
+ fix_bad(&fs);
+ if (salvage_files && 0)
+ reclaim_file(&fs);
+ else
+ reclaim_free(&fs);
+ free_clusters = update_free(&fs);
+ file_unused();
+ qfree(&mem_queue);
+ n_files_check = n_files;
+ if (verify) {
+ n_files = 0;
+ printf("Starting verification pass.\n");
+ read_fat(&fs);
+ scan_root(&fs);
+ reclaim_free(&fs);
+ qfree(&mem_queue);
+ n_files_verify = n_files;
+ }
+
+ if (fs_changed()) {
+ if (rw) {
+ if (interactive)
+ rw = get_key("yn", "Perform changes ? (y/n)") == 'y';
+ else
+ printf("Performing changes.\n");
+ } else
+ printf("Leaving file system unchanged.\n");
+ }
+
+ printf("%s: %u files, %lu/%lu clusters\n", argv[optind],
+ n_files, fs.clusters - free_clusters, fs.clusters);
+
+ if (retandroid) {
+ return fs_close(rw) ? 4 : 0;
+ } else {
+ return fs_close(rw) ? 1 : 0;
+ }
+}