zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/app/busybox/src/e2fsprogs/old_e2fsprogs/util.c b/ap/app/busybox/src/e2fsprogs/old_e2fsprogs/util.c
new file mode 100644
index 0000000..a61abc2
--- /dev/null
+++ b/ap/app/busybox/src/e2fsprogs/old_e2fsprogs/util.c
@@ -0,0 +1,263 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * util.c --- helper functions used by tune2fs and mke2fs
+ *
+ * Copyright 1995, 1996, 1997, 1998, 1999, 2000 by Theodore Ts'o.
+ *
+ * Licensed under GPLv2, see file LICENSE in this source tree.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <linux/major.h>
+#include <sys/stat.h>
+
+#include "e2fsbb.h"
+#include "e2p/e2p.h"
+#include "ext2fs/ext2_fs.h"
+#include "ext2fs/ext2fs.h"
+#include "blkid/blkid.h"
+#include "util.h"
+
+void proceed_question(void)
+{
+ fputs("Proceed anyway? (y,n) ", stdout);
+ if (bb_ask_confirmation() == 0)
+ exit(1);
+}
+
+void check_plausibility(const char *device, int force)
+{
+ int val;
+ struct stat s;
+ val = stat(device, &s);
+ if (force)
+ return;
+ if (val == -1)
+ bb_perror_msg_and_die("can't stat '%s'", device);
+ if (!S_ISBLK(s.st_mode)) {
+ printf("%s is not a block special device.\n", device);
+ proceed_question();
+ return;
+ }
+
+#ifdef HAVE_LINUX_MAJOR_H
+#ifndef MAJOR
+#define MAJOR(dev) ((dev)>>8)
+#define MINOR(dev) ((dev) & 0xff)
+#endif
+#ifndef SCSI_BLK_MAJOR
+#ifdef SCSI_DISK0_MAJOR
+#ifdef SCSI_DISK8_MAJOR
+#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
+ ((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR) || \
+ ((M) >= SCSI_DISK8_MAJOR && (M) <= SCSI_DISK15_MAJOR))
+#else
+#define SCSI_DISK_MAJOR(M) ((M) == SCSI_DISK0_MAJOR || \
+ ((M) >= SCSI_DISK1_MAJOR && (M) <= SCSI_DISK7_MAJOR))
+#endif /* defined(SCSI_DISK8_MAJOR) */
+#define SCSI_BLK_MAJOR(M) (SCSI_DISK_MAJOR((M)) || (M) == SCSI_CDROM_MAJOR)
+#else
+#define SCSI_BLK_MAJOR(M) ((M) == SCSI_DISK_MAJOR || (M) == SCSI_CDROM_MAJOR)
+#endif /* defined(SCSI_DISK0_MAJOR) */
+#endif /* defined(SCSI_BLK_MAJOR) */
+ if (((MAJOR(s.st_rdev) == HD_MAJOR &&
+ MINOR(s.st_rdev)%64 == 0) ||
+ (SCSI_BLK_MAJOR(MAJOR(s.st_rdev)) &&
+ MINOR(s.st_rdev)%16 == 0))) {
+ printf("%s is entire device, not just one partition!\n", device);
+ proceed_question();
+ }
+#endif
+}
+
+void check_mount(const char *device, int force, const char *type)
+{
+ errcode_t retval;
+ int mount_flags;
+
+ retval = ext2fs_check_if_mounted(device, &mount_flags);
+ if (retval) {
+ bb_error_msg("can't determine if %s is mounted", device);
+ return;
+ }
+ if (mount_flags & EXT2_MF_MOUNTED) {
+ bb_error_msg("%s is mounted !", device);
+force_check:
+ if (force)
+ bb_error_msg("badblocks forced anyways");
+ else
+ bb_error_msg_and_die("it's not safe to run badblocks!");
+ }
+
+ if (mount_flags & EXT2_MF_BUSY) {
+ bb_error_msg("%s is apparently in use by the system", device);
+ goto force_check;
+ }
+}
+
+void parse_journal_opts(char **journal_device, int *journal_flags,
+ int *journal_size, const char *opts)
+{
+ char *buf, *token, *next, *p, *arg;
+ int journal_usage = 0;
+ buf = xstrdup(opts);
+ for (token = buf; token && *token; token = next) {
+ p = strchr(token, ',');
+ next = 0;
+ if (p) {
+ *p = 0;
+ next = p+1;
+ }
+ arg = strchr(token, '=');
+ if (arg) {
+ *arg = 0;
+ arg++;
+ }
+ if (strcmp(token, "device") == 0) {
+ *journal_device = blkid_get_devname(NULL, arg, NULL);
+ if (!journal_device) {
+ journal_usage++;
+ continue;
+ }
+ } else if (strcmp(token, "size") == 0) {
+ if (!arg) {
+ journal_usage++;
+ continue;
+ }
+ (*journal_size) = strtoul(arg, &p, 0);
+ if (*p)
+ journal_usage++;
+ } else if (strcmp(token, "v1_superblock") == 0) {
+ (*journal_flags) |= EXT2_MKJOURNAL_V1_SUPER;
+ continue;
+ } else
+ journal_usage++;
+ }
+ if (journal_usage)
+ bb_error_msg_and_die(
+ "\nBad journal options specified.\n\n"
+ "Journal options are separated by commas, "
+ "and may take an argument which\n"
+ "\tis set off by an equals ('=') sign.\n\n"
+ "Valid journal options are:\n"
+ "\tsize=<journal size in megabytes>\n"
+ "\tdevice=<journal device>\n\n"
+ "The journal size must be between "
+ "1024 and 102400 filesystem blocks.\n\n");
+}
+
+/*
+ * Determine the number of journal blocks to use, either via
+ * user-specified # of megabytes, or via some intelligently selected
+ * defaults.
+ *
+ * Find a reasonable journal file size (in blocks) given the number of blocks
+ * in the filesystem. For very small filesystems, it is not reasonable to
+ * have a journal that fills more than half of the filesystem.
+ */
+int figure_journal_size(int size, ext2_filsys fs)
+{
+ blk_t j_blocks;
+
+ if (fs->super->s_blocks_count < 2048) {
+ bb_error_msg("Filesystem too small for a journal");
+ return 0;
+ }
+
+ if (size >= 0) {
+ j_blocks = size * 1024 / (fs->blocksize / 1024);
+ if (j_blocks < 1024 || j_blocks > 102400)
+ bb_error_msg_and_die("\nThe requested journal "
+ "size is %d blocks;\n it must be "
+ "between 1024 and 102400 blocks; Aborting",
+ j_blocks);
+ if (j_blocks > fs->super->s_free_blocks_count)
+ bb_error_msg_and_die("Journal size too big for filesystem");
+ return j_blocks;
+ }
+
+ if (fs->super->s_blocks_count < 32768)
+ j_blocks = 1024;
+ else if (fs->super->s_blocks_count < 256*1024)
+ j_blocks = 4096;
+ else if (fs->super->s_blocks_count < 512*1024)
+ j_blocks = 8192;
+ else if (fs->super->s_blocks_count < 1024*1024)
+ j_blocks = 16384;
+ else
+ j_blocks = 32768;
+
+ return j_blocks;
+}
+
+void print_check_message(ext2_filsys fs)
+{
+ printf("This filesystem will be automatically "
+ "checked every %d mounts or\n"
+ "%g days, whichever comes first. "
+ "Use tune2fs -c or -i to override.\n",
+ fs->super->s_max_mnt_count,
+ (double)fs->super->s_checkinterval / (3600 * 24));
+}
+
+void make_journal_device(char *journal_device, ext2_filsys fs, int quiet, int force)
+{
+ errcode_t retval;
+ ext2_filsys jfs;
+ io_manager io_ptr;
+
+ check_plausibility(journal_device, force);
+ check_mount(journal_device, force, "journal");
+ io_ptr = unix_io_manager;
+ retval = ext2fs_open(journal_device, EXT2_FLAG_RW|
+ EXT2_FLAG_JOURNAL_DEV_OK, 0,
+ fs->blocksize, io_ptr, &jfs);
+ if (retval)
+ bb_error_msg_and_die("can't journal device %s", journal_device);
+ if (!quiet)
+ printf("Adding journal to device %s: ", journal_device);
+ fflush(stdout);
+ retval = ext2fs_add_journal_device(fs, jfs);
+ if (retval)
+ bb_error_msg_and_die("\nFailed to add journal to device %s", journal_device);
+ if (!quiet)
+ puts("done");
+ ext2fs_close(jfs);
+}
+
+void make_journal_blocks(ext2_filsys fs, int journal_size, int journal_flags, int quiet)
+{
+ unsigned long journal_blocks;
+ errcode_t retval;
+
+ journal_blocks = figure_journal_size(journal_size, fs);
+ if (!journal_blocks) {
+ fs->super->s_feature_compat &=
+ ~EXT3_FEATURE_COMPAT_HAS_JOURNAL;
+ return;
+ }
+ if (!quiet)
+ printf("Creating journal (%ld blocks): ", journal_blocks);
+ fflush(stdout);
+ retval = ext2fs_add_journal_inode(fs, journal_blocks,
+ journal_flags);
+ if (retval)
+ bb_error_msg_and_die("can't create journal");
+ if (!quiet)
+ puts("done");
+}
+
+char *e2fs_set_sbin_path(void)
+{
+ char *oldpath = getenv("PATH");
+ /* Update our PATH to include /sbin */
+#define PATH_SET "/sbin"
+ if (oldpath)
+ oldpath = xasprintf("%s:%s", PATH_SET, oldpath);
+ else
+ oldpath = PATH_SET;
+ putenv(oldpath);
+ return oldpath;
+}