确定是否在有根设备上运行

#1 楼

/** @author Kevin Kowalewski */
public class RootUtil {
    public static boolean isDeviceRooted() {
        return checkRootMethod1() || checkRootMethod2() || checkRootMethod3();
    }

    private static boolean checkRootMethod1() {
        String buildTags = android.os.Build.TAGS;
        return buildTags != null && buildTags.contains("test-keys");
    }

    private static boolean checkRootMethod2() {
        String[] paths = { "/system/app/Superuser.apk", "/sbin/su", "/system/bin/su", "/system/xbin/su", "/data/local/xbin/su", "/data/local/bin/su", "/system/sd/xbin/su",
                "/system/bin/failsafe/su", "/data/local/su", "/su/bin/su"};
        for (String path : paths) {
            if (new File(path).exists()) return true;
        }
        return false;
    }

    private static boolean checkRootMethod3() {
        Process process = null;
        try {
            process = Runtime.getRuntime().exec(new String[] { "/system/xbin/which", "su" });
            BufferedReader in = new BufferedReader(new InputStreamReader(process.getInputStream()));
            if (in.readLine() != null) return true;
            return false;
        } catch (Throwable t) {
            return false;
        } finally {
            if (process != null) process.destroy();
        }
    }
}

#2 楼

CommonUtils.isRooted(context)

public static boolean isRooted(Context context) {
    boolean isEmulator = isEmulator(context);
    String buildTags = Build.TAGS;
    if(!isEmulator && buildTags != null && buildTags.contains("test-keys")) {
        return true;
    } else {
        File file = new File("/system/app/Superuser.apk");
        if(file.exists()) {
            return true;
        } else {
            file = new File("/system/xbin/su");
            return !isEmulator && file.exists();
        }
    }
}

#3 楼

#4 楼

$ adb shell ps

String commandToExecute = "su";
executeShellCommand(commandToExecute);

#5 楼

public static boolean isRootAvailable(){
    for(String pathDir : System.getenv("PATH").split(":")){
        if(new File(pathDir, "su").exists()) {
            return true;
        }
    }
    return false;
}

#6 楼

{
  "nonce": "R2Rra24fVm5xa2Mg",
  "timestampMs": 9860437986543,
  "apkPackageName": "com.package.name.of.requesting.app",
  "apkCertificateDigestSha256": ["base64 encoded, SHA-256 hash of the
                                  certificate used to sign requesting app"],
  "apkDigestSha256": "base64 encoded, SHA-256 hash of the app's APK",
  "ctsProfileMatch": true,
  "basicIntegrity": true,
}

#7 楼

#include <string.h>
#include <jni.h>
#include <time.h>
#include <sys/stat.h>
#include <stdio.h>
#include "android_log.h"
#include <errno.h>
#include <unistd.h>
#include <sys/system_properties.h>

JNIEXPORT int JNICALL Java_com_test_RootUtils_checkRootAccessMethod1(
        JNIEnv* env, jobject thiz) {


    //Access function checks whether a particular file can be accessed
    int result = access("/system/app/Superuser.apk",F_OK);

    ANDROID_LOGV( "File Access Result %d\n", result);

    int len;
    char build_tags[PROP_VALUE_MAX]; // PROP_VALUE_MAX from <sys/system_properties.h>.
    len = __system_property_get(ANDROID_OS_BUILD_TAGS, build_tags); // On return, len will equal (int)strlen(model_id).
    if(strcmp(build_tags,"test-keys") == 0){
        ANDROID_LOGV( "Device has test keys\n", build_tags);
        result = 0;
    }
    ANDROID_LOGV( "File Access Result %s\n", build_tags);
    return result;

}

JNIEXPORT int JNICALL Java_com_test_RootUtils_checkRootAccessMethod2(
        JNIEnv* env, jobject thiz) {
    //which command is enabled only after Busy box is installed on a rooted device
    //Outpput of which command is the path to su file. On a non rooted device , we will get a null/ empty path
    //char* cmd = const_cast<char *>"which su";
    FILE* pipe = popen("which su", "r");
    if (!pipe) return -1;
    char buffer[128];
    std::string resultCmd = "";
    while(!feof(pipe)) {
        if(fgets(buffer, 128, pipe) != NULL)
            resultCmd += buffer;
    }
    pclose(pipe);

    const char *cstr = resultCmd.c_str();
    int result = -1;
    if(cstr == NULL || (strlen(cstr) == 0)){
        ANDROID_LOGV( "Result of Which command is Null");
    }else{
        result = 0;
        ANDROID_LOGV( "Result of Which command %s\n", cstr);
        }
    return result;

}

JNIEXPORT int JNICALL Java_com_test_RootUtils_checkRootAccessMethod3(
        JNIEnv* env, jobject thiz) {


    int len;
    char build_tags[PROP_VALUE_MAX]; // PROP_VALUE_MAX from <sys/system_properties.h>.
    int result = -1;
    len = __system_property_get(ANDROID_OS_BUILD_TAGS, build_tags); // On return, len will equal (int)strlen(model_id).
    if(len >0 && strstr(build_tags,"test-keys") != NULL){
        ANDROID_LOGV( "Device has test keys\n", build_tags);
        result = 0;
    }

    return result;

}

#8 楼

public static boolean findBinary(String binaryName) {
        boolean found = false;
        if (!found) {
            String[] places = { "/sbin/", "/system/bin/", "/system/xbin/",
                    "/data/local/xbin/", "/data/local/bin/",
                    "/system/sd/xbin/", "/system/bin/failsafe/", "/data/local/" };
            for (String where : places) {
                if (new File(where + binaryName).exists()) {
                    found = true;

                    break;
                }
            }
        }
        return found;
    }

#9 楼

if (RootTools.isAccessGiven()) {
    // your app has been granted root access
}

#10 楼

#11 楼

cmb@apollo:~$ adb -d shell getprop |grep build
[ro.build.id]: [CUPCAKE]
[ro.build.display.id]: [htc_dream-eng 1.5 CUPCAKE eng.TheDudeAbides.20090427.235325 test-keys]
[ro.build.version.incremental]: [eng.TheDude.2009027.235325]
[ro.build.version.sdk]: [3]
[ro.build.version.release]: [1.5]
[ro.build.date]: [Mon Apr 20 01:42:32 CDT 2009]
[ro.build.date.utc]: [1240209752]
[ro.build.type]: [eng]
[ro.build.user]: [TheDude]
[ro.build.host]: [ender]
[ro.build.tags]: [test-keys]
[ro.build.product]: [dream]
[ro.build.description]: [kila-user 1.1 PLAT-RC33 126986 ota-rel-keys,release-keys]
[ro.build.fingerprint]: [tmobile/kila/dream/trout:1.1/PLAT-RC33/126986:user/ota-rel-keys,release-keys]
[ro.build.changelist]: [17615# end build properties]

#12 楼

 /**
   * Checks if the phone is rooted.
   * 
   * @return <code>true</code> if the phone is rooted, <code>false</code>
   * otherwise.
   */
  public static boolean isPhoneRooted() {

    // get from build info
    String buildTags = android.os.Build.TAGS;
    if (buildTags != null && buildTags.contains("test-keys")) {
      return true;
    }

    // check if /system/app/Superuser.apk is present
    try {
      File file = new File("/system/app/Superuser.apk");
      if (file.exists()) {
        return true;
      }
    } catch (Throwable e1) {
      // ignore
    }

    return false;
  }

#13 楼

package com.kozhevin.rootchecks.util;


import android.support.annotation.NonNull;

import com.kozhevin.rootchecks.BuildConfig;

public class MeatGrinder {
    private final static String LIB_NAME = "native-lib";
    private static boolean isLoaded;
    private static boolean isUnderTest = false;

    private MeatGrinder() {

    }

    public boolean isLibraryLoaded() {
        if (isLoaded) {
            return true;
        }
        try {
            if(isUnderTest) {
                throw new UnsatisfiedLinkError("under test");
            }
            System.loadLibrary(LIB_NAME);
            isLoaded = true;
        } catch (UnsatisfiedLinkError e) {
            if (BuildConfig.DEBUG) {
                e.printStackTrace();
            }
        }
        return isLoaded;
    }

    public native boolean isDetectedDevKeys();

    public native boolean isDetectedTestKeys();

    public native boolean isNotFoundReleaseKeys();

    public native boolean isFoundDangerousProps();

    public native boolean isPermissiveSelinux();

    public native boolean isSuExists();

    public native boolean isAccessedSuperuserApk();

    public native boolean isFoundSuBinary();

    public native boolean isFoundBusyboxBinary();

    public native boolean isFoundXposed();

    public native boolean isFoundResetprop();

    public native boolean isFoundWrongPathPermission();

    public native boolean isFoundHooks();

    @NonNull
    public static MeatGrinder getInstance() {
        return InstanceHolder.INSTANCE;
    }

    private static class InstanceHolder {
        private static final MeatGrinder INSTANCE = new MeatGrinder();
    }
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isDetectedTestKeys(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isDetectedTestKeys();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isDetectedDevKeys(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isDetectedDevKeys();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isNotFoundReleaseKeys(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isNotFoundReleaseKeys();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isFoundDangerousProps(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isFoundDangerousProps();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isPermissiveSelinux(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isPermissiveSelinux();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isSuExists(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isSuExists();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isAccessedSuperuserApk(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isAccessedSuperuserApk();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isFoundSuBinary(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isFoundSuBinary();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isFoundBusyboxBinary(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isFoundBusyboxBinary();
}


JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isFoundXposed(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isFoundXposed();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isFoundResetprop(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isFoundResetprop();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isFoundWrongPathPermission(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isFoundWrongPathPermission();
}

JNIEXPORT jboolean JNICALL
Java_com_kozhevin_rootchecks_util_MeatGrinder_isFoundHooks(
        JNIEnv *env,
        jobject  this ) {

    return (jboolean) isFoundHooks();
}

// Comma-separated tags describing the build, like= "unsigned,debug".
const char *const ANDROID_OS_BUILD_TAGS = "ro.build.tags";

// A string that uniquely identifies this build. 'BRAND/PRODUCT/DEVICE:RELEASE/ID/VERSION.INCREMENTAL:TYPE/TAGS'.
const char *const ANDROID_OS_BUILD_FINGERPRINT = "ro.build.fingerprint";

const char *const ANDROID_OS_SECURE = "ro.secure";

const char *const ANDROID_OS_DEBUGGABLE = "ro.debuggable";
const char *const ANDROID_OS_SYS_INITD = "sys.initd";
const char *const ANDROID_OS_BUILD_SELINUX = "ro.build.selinux";
//see https://android.googlesource.com/platform/system/core/+/master/adb/services.cpp#86
const char *const SERVICE_ADB_ROOT = "service.adb.root";

const char * const MG_SU_PATH[] = {
        "/data/local/",
        "/data/local/bin/",
        "/data/local/xbin/",
        "/sbin/",
        "/system/bin/",
        "/system/bin/.ext/",
        "/system/bin/failsafe/",
        "/system/sd/xbin/",
        "/su/xbin/",
        "/su/bin/",
        "/magisk/.core/bin/",
        "/system/usr/we-need-root/",
        "/system/xbin/",
        0
};

const char * const MG_EXPOSED_FILES[] = {
        "/system/lib/libxposed_art.so",
        "/system/lib64/libxposed_art.so",
        "/system/xposed.prop",
        "/cache/recovery/xposed.zip",
        "/system/framework/XposedBridge.jar",
        "/system/bin/app_process64_xposed",
        "/system/bin/app_process32_xposed",
        "/magisk/xposed/system/lib/libsigchain.so",
        "/magisk/xposed/system/lib/libart.so",
        "/magisk/xposed/system/lib/libart-disassembler.so",
        "/magisk/xposed/system/lib/libart-compiler.so",
        "/system/bin/app_process32_orig",
        "/system/bin/app_process64_orig",
        0
};

const char * const MG_READ_ONLY_PATH[] = {
        "/system",
        "/system/bin",
        "/system/sbin",
        "/system/xbin",
        "/vendor/bin",
        "/sbin",
        "/etc",
        0
};

struct mntent *getMntent(FILE *fp, struct mntent *e, char *buf, int buf_len) {

    while (fgets(buf, buf_len, fp) != NULL) {
        // Entries look like "/dev/block/vda /system ext4 ro,seclabel,relatime,data=ordered 0 0".
        // That is: mnt_fsname mnt_dir mnt_type mnt_opts mnt_freq mnt_passno.
        int fsname0, fsname1, dir0, dir1, type0, type1, opts0, opts1;
        if (sscanf(buf, " %n%*s%n %n%*s%n %n%*s%n %n%*s%n %d %d",
                   &fsname0, &fsname1, &dir0, &dir1, &type0, &type1, &opts0, &opts1,
                   &e->mnt_freq, &e->mnt_passno) == 2) {
            e->mnt_fsname = &buf[fsname0];
            buf[fsname1] = 'q4312078q';
            e->mnt_dir = &buf[dir0];
            buf[dir1] = 'q4312078q';
            e->mnt_type = &buf[type0];
            buf[type1] = 'q4312078q';
            e->mnt_opts = &buf[opts0];
            buf[opts1] = 'q4312078q';
            return e;
        }
    }
    return NULL;
}


bool isPresentMntOpt(const struct mntent *pMnt, const char *pOpt) {
    char *token = pMnt->mnt_opts;
    const char *end = pMnt->mnt_opts + strlen(pMnt->mnt_opts);
    const size_t optLen = strlen(pOpt);
    while (token != NULL) {
        const char *tokenEnd = token + optLen;
        if (tokenEnd > end) break;
        if (memcmp(token, pOpt, optLen) == 0 &&
            (*tokenEnd == 'q4312078q' || *tokenEnd == ',' || *tokenEnd == '=')) {
            return true;
        }
        token = strchr(token, ',');
        if (token != NULL) {
            token++;
        }
    }
    return false;
}

static char *concat2str(const char *pString1, const char *pString2) {
    char *result;
    size_t lengthBuffer = 0;

    lengthBuffer = strlen(pString1) +
                   strlen(pString2) + 1;
    result = malloc(lengthBuffer);
    if (result == NULL) {
        GR_LOGW("malloc failed\n");
        return NULL;
    }
    memset(result, 0, lengthBuffer);
    strcpy(result, pString1);
    strcat(result, pString2);
    return result;
}

static bool
isBadPropertyState(const char *key, const char *badValue, bool isObligatoryProperty, bool isExact) {
    if (badValue == NULL) {
        GR_LOGE("badValue may not be NULL");
        return false;
    }
    if (key == NULL) {
        GR_LOGE("key may not be NULL");
        return false;
    }
    char value[PROP_VALUE_MAX + 1];
    int length = __system_property_get(key, value);
    bool result = false;
    /* A length 0 value indicates that the property is not defined */
    if (length > 0) {
        GR_LOGI("property:[%s]==[%s]", key, value);
        if (isExact) {
            if (strcmp(value, badValue) == 0) {
                GR_LOGW("bad value[%s] equals to [%s] in the property [%s]", value, badValue, key);
                result = true;
            }
        } else {
            if (strlen(value) >= strlen(badValue) && strstr(value, badValue) != NULL) {
                GR_LOGW("bad value[%s] found in [%s] in the property [%s]", value, badValue, key);
                result = true;
            }
        }
    } else {
        GR_LOGI("[%s] property not found", key);
        if (isObligatoryProperty) {
            result = true;
        }
    }
    return result;
}

bool isDetectedTestKeys() {
    const char *TEST_KEYS_VALUE = "test-keys";
    return isBadPropertyState(ANDROID_OS_BUILD_TAGS, TEST_KEYS_VALUE, true, false);
}

bool isDetectedDevKeys() {
    const char *DEV_KEYS_VALUE = "dev-keys";
    return isBadPropertyState(ANDROID_OS_BUILD_TAGS, DEV_KEYS_VALUE, true, false);
}

bool isNotFoundReleaseKeys() {
    const char *RELEASE_KEYS_VALUE = "release-keys";
    return !isBadPropertyState(ANDROID_OS_BUILD_TAGS, RELEASE_KEYS_VALUE, false, true);
}

bool isFoundWrongPathPermission() {

    bool result = false;
    FILE *file = fopen("/proc/mounts", "r");
    char mntent_strings[BUFSIZ];
    if (file == NULL) {
        GR_LOGE("setmntent");
        return result;
    }

    struct mntent ent = {0};
    while (NULL != getMntent(file, &ent, mntent_strings, sizeof(mntent_strings))) {
        for (size_t i = 0; MG_READ_ONLY_PATH[i]; i++) {
            if (strcmp((&ent)->mnt_dir, MG_READ_ONLY_PATH[i]) == 0 &&
                isPresentMntOpt(&ent, "rw")) {
                GR_LOGI("%s %s %s %s\n", (&ent)->mnt_fsname, (&ent)->mnt_dir, (&ent)->mnt_opts,
                        (&ent)->mnt_type);
                result = true;
                break;
            }
        }
        memset(&ent, 0, sizeof(ent));
    }
    fclose(file);
    return result;
}


bool isFoundDangerousProps() {
    const char *BAD_DEBUGGABLE_VALUE = "1";
    const char *BAD_SECURE_VALUE = "0";
    const char *BAD_SYS_INITD_VALUE = "1";
    const char *BAD_SERVICE_ADB_ROOT_VALUE = "1";

    bool result = isBadPropertyState(ANDROID_OS_DEBUGGABLE, BAD_DEBUGGABLE_VALUE, true, true) ||
                  isBadPropertyState(SERVICE_ADB_ROOT, BAD_SERVICE_ADB_ROOT_VALUE, false, true) ||
                  isBadPropertyState(ANDROID_OS_SECURE, BAD_SECURE_VALUE, true, true) ||
                  isBadPropertyState(ANDROID_OS_SYS_INITD, BAD_SYS_INITD_VALUE, false, true);

    return result;
}

bool isPermissiveSelinux() {
    const char *BAD_VALUE = "0";
    return isBadPropertyState(ANDROID_OS_BUILD_SELINUX, BAD_VALUE, false, false);
}

bool isSuExists() {
    char buf[BUFSIZ];
    char *str = NULL;
    char *temp = NULL;
    size_t size = 1;  // start with size of 1 to make room for null terminator
    size_t strlength;

    FILE *pipe = popen("which su", "r");
    if (pipe == NULL) {
        GR_LOGI("pipe is null");
        return false;
    }

    while (fgets(buf, sizeof(buf), pipe) != NULL) {
        strlength = strlen(buf);
        temp = realloc(str, size + strlength);  // allocate room for the buf that gets appended
        if (temp == NULL) {
            // allocation error
            GR_LOGE("Error (re)allocating memory");
            pclose(pipe);
            if (str != NULL) {
                free(str);
            }
            return false;
        } else {
            str = temp;
        }
        strcpy(str + size - 1, buf);
        size += strlength;
    }
    pclose(pipe);
    GR_LOGW("A size of the result from pipe is [%zu], result:\n [%s] ", size, str);
    if (str != NULL) {
        free(str);
    }
    return size > 1 ? true : false;
}

static bool isAccessedFile(const char *path) {
    int result = access(path, F_OK);
    GR_LOGV("[%s] has been accessed with result: [%d]", path, result);
    return result == 0 ? true : false;
}

static bool isFoundBinaryFromArray(const char *const *array, const char *binary) {
    for (size_t i = 0; array[i]; ++i) {
        char *checkedPath = concat2str(array[i], binary);
        if (checkedPath == NULL) { // malloc failed
            return false;
        }
        bool result = isAccessedFile(checkedPath);
        free(checkedPath);
        if (result) {
            return result;
        }
    }
    return false;
}

bool isAccessedSuperuserApk() {
    return isAccessedFile("/system/app/Superuser.apk");
}

bool isFoundResetprop() {
    return isAccessedFile("/data/magisk/resetprop");
}

bool isFoundSuBinary() {
    return isFoundBinaryFromArray(MG_SU_PATH, "su");
}

bool isFoundBusyboxBinary() {
    return isFoundBinaryFromArray(MG_SU_PATH, "busybox");
}

bool isFoundXposed() {
    for (size_t i = 0; MG_EXPOSED_FILES[i]; ++i) {
        bool result = isAccessedFile(MG_EXPOSED_FILES[i]);
        if (result) {
            return result;
        }
    }
    return false;
}

bool isFoundHooks() {
    bool result = false;
    pid_t pid = getpid();
    char maps_file_name[512];
    sprintf(maps_file_name, "/proc/%d/maps", pid);
    GR_LOGI("try to open [%s]", maps_file_name);
    const size_t line_size = BUFSIZ;
    char *line = malloc(line_size);
    if (line == NULL) {
        return result;
    }
    FILE *fp = fopen(maps_file_name, "r");
    if (fp == NULL) {
        free(line);
        return result;
    }
    memset(line, 0, line_size);
    const char *substrate = "com.saurik.substrate";
    const char *xposed = "XposedBridge.jar";
    while (fgets(line, line_size, fp) != NULL) {
        const size_t real_line_size = strlen(line);
        if ((real_line_size >= strlen(substrate) && strstr(line, substrate) != NULL) ||
            (real_line_size >= strlen(xposed) && strstr(line, xposed) != NULL)) {
            GR_LOGI("found in [%s]: [%s]", maps_file_name, line);
            result = true;
            break;
        }
    }
    free(line);
    fclose(fp);
    return result;
}

#14 楼

public static boolean checkRootMethod4(Context context) {
    return isPackageInstalled("eu.chainfire.supersu", context);     
}

private static boolean isPackageInstalled(String packagename, Context context) {
    PackageManager pm = context.getPackageManager();
    try {
        pm.getPackageInfo(packagename, PackageManager.GET_ACTIVITIES);
        return true;
    } catch (NameNotFoundException e) {
        return false;
    }
}

#15 楼

    public static boolean isRootAvailable(){
            Process p = null;
            try{
               p = Runtime.getRuntime().exec(new String[] {"su"});
               writeCommandToConsole(p,"exit 0");
               int result = p.waitFor();
               if(result != 0)
                   throw new Exception("Root check result with exit command " + result);
               return true;
            } catch (IOException e) {
                Log.e(LOG_TAG, "Su executable is not available ", e);
            } catch (Exception e) {
                Log.e(LOG_TAG, "Root is unavailable ", e);
            }finally {
                if(p != null)
                    p.destroy();
            }
            return false;
        }
 private static String writeCommandToConsole(Process proc, String command, boolean ignoreError) throws Exception{
            byte[] tmpArray = new byte[1024];
            proc.getOutputStream().write((command + "\n").getBytes());
            proc.getOutputStream().flush();
            int bytesRead = 0;
            if(proc.getErrorStream().available() > 0){
                if((bytesRead = proc.getErrorStream().read(tmpArray)) > 1){
                    Log.e(LOG_TAG,new String(tmpArray,0,bytesRead));
                    if(!ignoreError)
                        throw new Exception(new String(tmpArray,0,bytesRead));
                }
            }
            if(proc.getInputStream().available() > 0){
                bytesRead = proc.getInputStream().read(tmpArray);
                Log.i(LOG_TAG, new String(tmpArray,0,bytesRead));
            }
            return new String(tmpArray);
        }

#16 楼

#17 楼

#18 楼

if [[ "`adb shell which su | grep -io "permission denied"`" != "permission denied" ]]; then
   echo "Yes. Rooted device."
 else
   echo "No. Device not rooted. Only limited tasks can be performed. Done."
    zenity --warning --title="Device Not Rooted" --text="The connected Android Device is <b>NOT ROOTED</b>. Only limited tasks can be performed." --no-wrap
fi

#19 楼

#20 楼

#21 楼

  boolean isRooted() {
      try {
                ServerSocket ss = new ServerSocket(81);
                ss.close();
                                    return true;
            } catch (Exception e) {
                // not sure
            }
    return false;
  }

#22 楼

#23 楼

public boolean getRootInfo() {
    if (checkRootFiles() || checkTags()) {
        return true;
    }
    return false;
}

private boolean checkRootFiles() {
    boolean root = false;
    String[] paths = {"/system/app/Superuser.apk", "/sbin/su", "/system/bin/su", "/system/xbin/su", "/data/local/xbin/su", "/data/local/bin/su", "/system/sd/xbin/su",
            "/system/bin/failsafe/su", "/data/local/su", "/su/bin/su"};
    for (String path : paths) {
        root = new File(path).exists();
        if (root)
            break;
    }
    return root;
}

private boolean checkTags() {
    String tag = Build.TAGS;
    return tag != null && tag.trim().contains("test-keys");
}

#24 楼

    //Pass true to <Shell>.start(...) call to run as superuser
    Shell shell = null;
    try {
            shell = Shell.start(true);
    } catch (IOException exception) {
            exception.printStackTrace();
    }
    if (shell == null)
            // We failed to execute su binary
            return;
    if (shell.isRoot()) {
            // Verified running as uid 0 (root), can continue with commands
            ...
    } else
            throw Exception("Unable to gain root access. Make sure you pressed Allow/Grant in superuser prompt.");