269 lines
7.4 KiB
C++
Executable File
269 lines
7.4 KiB
C++
Executable File
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <sys/mount.h>
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#include <linux/kdev_t.h>
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#include <sys/wait.h>
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#include <linux/fs.h>
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#include <sys/ioctl.h>
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#define LOG_TAG "Vold"
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#include <cutils/log.h>
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#include <cutils/properties.h>
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#include <logwrap/logwrap.h>
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#include "Ntfs.h"
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#include "VoldUtil.h"
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static char NTFS_CHECK_PATH[] = "/system/bin/ntfsfix";
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static char NTFS_3G_PATH[] = "/system/bin/ntfs-3g";
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static char NTFS_FORMAT_PATH[] = "/system/bin/mkntfs";
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extern "C" int mount(const char *, const char *, const char *, unsigned long, const void *);
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int Ntfs::check(const char *fsPath) {
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if (access(NTFS_CHECK_PATH, X_OK)) {
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SLOGW("Skipping ntfs checks\n");
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return 0;
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}
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int rc = 0;
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int status;
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const char *args[4];
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/* we first use -n to do ntfs detection */
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args[0] = NTFS_CHECK_PATH;
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args[1] = "-n";
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args[2] = fsPath;
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args[3] = NULL;
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rc = android_fork_execvp(ARRAY_SIZE(args), (char **)args, &status, false,
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true);
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if (rc) {
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errno = ENODATA;
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return -1;
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}
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SLOGI("Ntfs filesystem existed");
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/* do the real fix */
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/* redo the ntfsfix without -n to fix problems */
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args[1] = fsPath;
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args[2] = NULL;
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rc = android_fork_execvp(ARRAY_SIZE(args), (char **)args, &status, false,
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true);
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if (rc) {
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errno = EIO;
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SLOGE("Filesystem check failed (unknown exit code %d)", rc);
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return -1;
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}
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SLOGI("Ntfs filesystem check completed OK");
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return 0;
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}
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int Ntfs::doMount(const char *fsPath, const char *mountPoint, bool ro, int ownerUid, int ownerGid)
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{
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int rc = 0;
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do {
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if (!ro) {
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int status_f;
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const char *args[6];
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char mountData[255];
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args[0] = NTFS_3G_PATH;
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args[1] = "-o";
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args[2] = mountData;
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args[3] = fsPath;
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args[4] = mountPoint;
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args[5] = NULL;
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sprintf(mountData, "utf8,uid=%d,gid=%d,shortname=mixed,nodev,nosuid,dirsync,"
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"big_writes,noatime,delay_mtime=120",
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ownerUid, ownerGid);
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rc = android_fork_execvp(ARRAY_SIZE(args), (char **)args, &status_f,
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false, true);
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SLOGI(" %s %s %s", NTFS_3G_PATH, fsPath, mountPoint);
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if (!rc) {
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if (WIFEXITED(status_f)) {
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if (WEXITSTATUS(status_f)) {
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SLOGE("ntfs-3g fail WEXITSTATUS %d",WEXITSTATUS(status_f));
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return -1;
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}
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}
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SLOGI("Mount NTFS device form %s to %s OK", fsPath, mountPoint);
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char *lost_path;
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asprintf(&lost_path, "%s/LOST.DIR", mountPoint);
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if (access(lost_path, F_OK)) {
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/*
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* Create a LOST.DIR in the root so we have somewhere to put
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* lost cluster chains (fsck_msdos doesn't currently do this)
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*/
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if (mkdir(lost_path, 0755)) {
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SLOGE("Unable to create LOST.DIR (%s)", strerror(errno));
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}
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}
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free(lost_path);
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return 0;
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} else {
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SLOGE("Mount NTFS device form %s to %s failed", fsPath, mountPoint);
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return -1;
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}
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} else {
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int status;
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const char *args[6];
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char mountData[255];
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args[0] = NTFS_3G_PATH;
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args[1] = "-o";
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args[2] = fsPath;
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args[3] = mountPoint;
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args[4] = mountData;
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args[5] = NULL;
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sprintf(mountData," ro,utf8,uid=%d,gid=%d", ownerUid, ownerGid);
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rc = android_fork_execvp(ARRAY_SIZE(args), (char **)args, &status,
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false, true);
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SLOGI(" %s %s %s____%d", NTFS_3G_PATH, fsPath, mountPoint, rc);
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if (rc != 0) {
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SLOGE("Filesystem mount failed due to logwrap error");
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errno = EIO;
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return -1;
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}
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if (!WIFEXITED(status)) {
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SLOGE("Filesystem mount did not exit properly");
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errno = EIO;
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return -1;
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}
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status = WEXITSTATUS(status);
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if (status == 0) {
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char *lost_path;
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asprintf(&lost_path, "%s/LOST.DIR", mountPoint);
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if (access(lost_path, F_OK)) {
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/*
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* Create a LOST.DIR in the root so we have somewhere to put
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* lost cluster chains (fsck_msdos doesn't currently do this)
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*/
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if (mkdir(lost_path, 0755)) {
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SLOGE("Unable to create LOST.DIR (%s)", strerror(errno));
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}
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}
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free(lost_path);
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SLOGI("Mount NTFS device form %s to %s OK.", fsPath, mountPoint);
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return 0;
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} else {
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SLOGE("%dMount NTFS device form %s to %s failed.", status, fsPath, mountPoint);
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return -1;
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}
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}
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} while (0);
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return rc;
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}
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int Ntfs::unMount(const char *mountPoint)
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{
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int rc = 0;
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do {
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int status;
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const char *args[3];
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args[0] = "umount";
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args[1] = mountPoint;
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args[2] = NULL;
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rc = android_fork_execvp(ARRAY_SIZE(args), (char **)args, &status,
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false, true);
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if (!rc) {
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SLOGI("unMount NTFS device %s OK",mountPoint);
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} else {
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SLOGE("unMount NTFS device %s failed",mountPoint);
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}
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} while (0);
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return rc;
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}
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int Ntfs::format(const char *fsPath, unsigned int numSectors, bool wipe, const char *label)
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{
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const char *args[7];
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int rc = -1;
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int status;
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if (access(NTFS_FORMAT_PATH, X_OK)) {
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SLOGE("Unable to format, mkntfs not found.");
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return -1;
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}
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args[0] = NTFS_FORMAT_PATH;
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if (wipe) {
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args[1] = "-L";
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args[2] = label;
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args[3] = fsPath;
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if (numSectors) {
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char sectors[16];
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sprintf(sectors, "%d", numSectors);
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args[4] = sectors;
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args[5] = NULL;
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}
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else
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args[4] = NULL;
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} else {
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args[1] = "-f";
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args[2] = "-L";
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args[3] = label;
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args[4] = fsPath;
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if (numSectors) {
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char sectors[16];
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sprintf(sectors, "%d", numSectors);
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args[5] = sectors;
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args[6] = NULL;
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}
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else
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args[5] = NULL;
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}
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rc = android_fork_execvp(ARRAY_SIZE(args), (char **)args, &status, false,
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true);
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if (rc == 0) {
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SLOGI("Filesystem (NTFS) formatted OK");
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return 0;
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} else {
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SLOGE("Format (NTFS) failed (unknown exit code %d)", rc);
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errno = EIO;
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return -1;
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}
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return 0;
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}
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