[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/app/busybox/src/e2fsprogs/tune2fs.c b/ap/app/busybox/src/e2fsprogs/tune2fs.c
new file mode 100644
index 0000000..46a745e
--- /dev/null
+++ b/ap/app/busybox/src/e2fsprogs/tune2fs.c
@@ -0,0 +1,107 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * tune2fs: utility to modify EXT2 filesystem
+ *
+ * Busybox'ed (2009) by Vladimir Dronnikov <dronnikov@gmail.com>
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+#include "libbb.h"
+#include <linux/fs.h>
+#include "bb_e2fs_defs.h"
+
+// storage helpers
+char BUG_wrong_field_size(void);
+#define STORE_LE(field, value) \
+do { \
+ if (sizeof(field) == 4) \
+ field = SWAP_LE32(value); \
+ else if (sizeof(field) == 2) \
+ field = SWAP_LE16(value); \
+ else if (sizeof(field) == 1) \
+ field = (value); \
+ else \
+ BUG_wrong_field_size(); \
+} while (0)
+
+#define FETCH_LE32(field) \
+ (sizeof(field) == 4 ? SWAP_LE32(field) : BUG_wrong_field_size())
+
+//usage:#define tune2fs_trivial_usage
+//usage: "[-c MAX_MOUNT_COUNT] "
+////usage: "[-e errors-behavior] [-g group] "
+//usage: "[-i DAYS] "
+////usage: "[-j] [-J journal-options] [-l] [-s sparse-flag] "
+////usage: "[-m reserved-blocks-percent] [-o [^]mount-options[,...]] "
+////usage: "[-r reserved-blocks-count] [-u user] "
+//usage: "[-C MOUNT_COUNT] "
+//usage: "[-L LABEL] "
+////usage: "[-M last-mounted-dir] [-O [^]feature[,...]] "
+////usage: "[-T last-check-time] [-U UUID] "
+//usage: "BLOCKDEV"
+//usage:
+//usage:#define tune2fs_full_usage "\n\n"
+//usage: "Adjust filesystem options on ext[23] filesystems"
+
+enum {
+ OPT_L = 1 << 0, // label
+ OPT_c = 1 << 1, // max mount count
+ OPT_i = 1 << 2, // check interval
+ OPT_C = 1 << 3, // current mount count
+};
+
+int tune2fs_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int tune2fs_main(int argc UNUSED_PARAM, char **argv)
+{
+ unsigned opts;
+ const char *label, *str_c, *str_i, *str_C;
+ struct ext2_super_block *sb;
+ int fd;
+
+ opt_complementary = "=1";
+ opts = getopt32(argv, "L:c:i:C:", &label, &str_c, &str_i, &str_C);
+ if (!opts)
+ bb_show_usage();
+ argv += optind; // argv[0] -- device
+
+ // read superblock
+ fd = xopen(argv[0], O_RDWR);
+ xlseek(fd, 1024, SEEK_SET);
+ sb = xzalloc(1024);
+ xread(fd, sb, 1024);
+
+ // mangle superblock
+ //STORE_LE(sb->s_wtime, time(NULL)); - why bother?
+
+ if (opts & OPT_C) {
+ int n = xatoi_range(str_C, 1, 0xfffe);
+ STORE_LE(sb->s_mnt_count, (unsigned)n);
+ }
+
+ // set the label
+ if (opts & OPT_L)
+ safe_strncpy((char *)sb->s_volume_name, label, sizeof(sb->s_volume_name));
+
+ if (opts & OPT_c) {
+ int n = xatoi_range(str_c, -1, 0xfffe);
+ if (n == 0)
+ n = -1;
+ STORE_LE(sb->s_max_mnt_count, (unsigned)n);
+ }
+
+ if (opts & OPT_i) {
+ unsigned n = xatou_range(str_i, 0, (unsigned)0xffffffff / (24*60*60)) * 24*60*60;
+ STORE_LE(sb->s_checkinterval, n);
+ }
+
+ // write superblock
+ xlseek(fd, 1024, SEEK_SET);
+ xwrite(fd, sb, 1024);
+
+ if (ENABLE_FEATURE_CLEAN_UP) {
+ free(sb);
+ }
+
+ xclose(fd);
+ return EXIT_SUCCESS;
+}