, and the shell user's process quota has been reached, the adbd process will fail to execute setgid and setuid. According to the Code, we sendAfter the current failure, adbd will continue to execute. In this way, the adbd process will run under the root permission.
3. If you use ADB to connect to the device again, ADB will run under the root permission.
Through
use root permissions may be used similar to (this is also a part of the Superuser code):
Copy Code code as follows:
Process process = Runtime.getruntime (). EXEC ("su");
DataOutputStream OS = new DataOutputStream (Process.getoutputstream ());
Os.writebytes ("mount-oremount,rw/dev/block/mtdblock3/system\n");
Os.writebytes ("BusyBox cp/data/data/com.koushikdutta.superuser/su/system/bin/su\n");
Os.writebytes ("BusyBox chown 0:0/s
I. Development system of Xiaomi 31. In the XiaoMi mobile app, we will see a "authorization management" menu and click to enter.2. Click "menu"> "set" on the phone.3. Enable the switch on the right of "ROOT permission" to obtain the permissions of Xiaomi 3ROOT.Of course, it should be noted that this method is only applicable to the development version System. That is t
Tags: mysqld window title MySQL modify use cannot condition directory forget root passwordmysql--4 ways to change the root password (take windows as an example)From: http://www.jb51.net/article/39454.htmThis article takes windows as an example for you to introduce the 4 ways to change the
Android Note 4-multi‑thread resumable upload, Android 4-resumable upload
Multi‑thread resumable data transfer is extremely important on any platform. Old Rules: Use a picture to introduce today's content.
If you cannot see the image clearly, right-click it and open it in a new window.
The principle is also very sim
You have to take a picture of the screen (of course, you can also take a picture to achieve your goal ). As a result, Google finds some applications that require Root permissions and do not require Root permissions, which are somewhat disappointing and mostly unavailable. So I want to develop an application on my own. The getDrawingCache method is provided in the View. You can obtain the screenshot of the V
Label:Method 1: Use the Set password commandFirst log in to MySQL.Format:mysql> set password for user name @localhost = password (' new password ');Example:mysql> set password for [email protected] = password (' 123 ');Method 2: Use MysqladminFormat: Mysqladmin-u username-P Old password password new passwordExample: mysqladmin-uroot-p123456 password 123Method 3: Edit the user table directly with updateFirst log in to MySQL.mysql> use MySQL;mysql> Upda
Label:Method 1: Use the Set password commandfirst log in to MySQL. format:mysql> Set password for user name @localhost = password (' new password ');example:mysql> set password for [email protected] = password (' 123 ');Method 2: Use MysqladminFormat: Mysqladmin-u username-P Old password password new passwordExample: mysqladmin-uroot-p123456 password 123Method 3: Edit the user table directly with updatefirst log in to MySQL. mysql> use MySQL;mysql> Up
the kick_khubd function, add the current hub to the Hub driver queue hub_event_list, and then wake up the hub daemon wake_up (khubd_wait) to start parsing what happened to the hub.
3. After hub_thread is awakened, It will be executed and hub_events will also be executed.
4. hub_events is the main function used to analyze hub events. The content of hub analysis is executed here. This function is a large end
file's permissions should consist of 4-bit numbers, such as the previous root file plus setuid permission is 4755. The passwd file that modifies the password has the corresponding permission bit 4755.A small example can be used to intuitively feel that the usual use of the cat command corresponding to the binary file is not setuid permissions:You can try using cat to read the contents of the/etc/shadow fil
Output example
Maxnum:4, Minnum:1, sum:10Maxnum:5, Minnum:1, sum:17
Other Notes
0 0 0
Problem: Line tree and Flood1#include 2#include 3#include 4#include 5#include 6#include 7 #definePAU Putchar (")8 #defineENT Putchar (' \ n ')9 #defineCH for (int d=0;dTen using namespacestd; One Const intmaxn=10
Newton's Iterative method was used to find the root of the equation near 1.5:2x^3-4x^2+3x-6=0.Solution: Newton's Iterative method is also called Newton tangent method. Setf =2x^3-4x^2+3x-6,F1 is the derivative of the equation, thef1 = 6x^2-8x+3, and f1= (f (x0) -0)/(X0-X1), deduced:x1 = x0-f/F1Program:#include #include
Step 1: Open http://shuaji.360.cn/rootdirectly in the browser and download the 360one-key roottool to install it on your computer.Step 2: during the installation process, we only need to "I have read and agree to the user agreement and disclaimer" and then the installation will be successful.Step 3: Now connect your phone to your computer, and then enable the 360 one-key ROOT. After entering, I cl
command:
Fastboot erase bootloader// Erase
Recovery covery:
Fastboot flash recovery. img
Restart the device
Fastboot reboot
2. Modify the source code of the su command
The su command provided by Android can only be called by the root and shell users (adb shell ).
3. Create a Recovery file (*. zip)
It is mainly composed of the files to be copied
password was modified passwd the binary program that corresponds to/USR/BIN/PASSWDcan see passwd binary file permissions bit is not only rwx, more than a s permission, and this s permission is our protagonist, setuid permissions.Because passwd has setuid permissions, the Linux system can temporarily assign the owner (root) role of this file to a normal user, so that ordinary users can modify their password.So how do you set setuid permissions?Ordinar
650) this.width=650; "class=" AlignCenter size-full wp-image-5281 "alt=" Picture 1 "src=" http://www.kjxfx.com/wp-content/ Uploads/2015/04/%e5%9b%be%e7%89%8714.jpg "width=" 574 "height=" 476 "style=" height:auto;vertical-align:middle; border:0px;margin:0px auto; "/>A thunder from the ground, Microsoft suddenly sent surprise! Without warning, Microsoft suddenly released a new model of the surface family: Surface 3. For Microsoft, it seems like a big st
Su file to the/system/bin/directory. Step two, put the superuser.apk under the/system/app/directory. Step three, set/system/bin/su to allow any user to run and have Set_uid and Set_gid permissions.Of course, these operators will not easily allow us to do so, so we need to take advantage of the various vulnerabilities of the Android operating system to achieve these operations, the use of these vulnerabilities to complete the above three steps of the
Android Android-android Application Structure Analysis (4), android Application Development
Description of the automatically generated R. java File
1 public final class R { 2 public static final class attr { 3 }
======================================================================----------------------------------------------------------------------3.1 Realization Ideas----------------------------------------------------------------------After trying out various ideas and failing many times, the idea of finally identifying the binder communication in the System_server process is as follows:1, run the injection program as root, stop and attach system_server t
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