在Android代码中创建一个套接字（不是在android应用程序中）获取权限被拒绝 [英] Create a socket in android code(not in android application) getting Permission Denied
问题描述
我试图在android源代码中打开一个套接字。具体来说，现在，我在DisplayDevice.cpp文件中，但套接字代码的位置可能会更改。现在我做后：
I am trying to open a socket in the android source code. Specifically, right now, I am in the DisplayDevice.cpp file, but the location of the socket code may change. Right now after I do:
int fd = socket(AF_INET, SOCK_STREAM, 0);
fd返回为-1，当我检查错误消息时，它被列为Permission Denied。我已经查找了很多这方面，大多数答案涉及到添加互联网权限到AndroidManifest文件。这将不是为我工作，因为我添加的代码是在Android源代码。
fd gets returned as -1, and when i check the error message it is listed as Permission Denied. I have looked around a lot for this, most answers involve adding the internet permission to the AndroidManifest file. This will not work for me as the code I am adding is inside of the android source code.
我想知道是否有一种方法绕过权限被拒绝。或者如果有一个更好的方法来做这个/一个不同类型的套接字使用（现在我使用的插座从
I was wondering if there is a way to bypass the permission denied. Or if there is a better way to do this/ a different type of socket to use(right now I am using sockets from
谢谢。
推荐答案
很自然，你得到 Permission Denied 错误， t有正确的权限:)。请查看 Android权限模式！
It is quite natural that you get Permission Denied error. This is simply because you don't have correct permission :). Check out android permission model!
假设一个场景像操作系统中的普通用户，并且你编写一个程序试图打开一个像你的套接字。
Imagine a scenario like a normal user in an operating system and you write a program which tries to open a socket like yours. You would most probably face the same problem, depending on where the named socket is to be created.
由于您在 DisplayDevice.cpp （从源代码编译android），您可以有兴趣以超级用户编译源代码。 这里是由 m-ric （我从来没有测试过它）。
As you are trying to create the socket in DisplayDevice.cpp (compiling android from the source), you may be interested in compiling the source as a superuser. Here is a solution posted by m-ric (I have never tested it).
一些有用的指针/引用在类似的方向，主题是：
Some useful pointers/references in similar direction and which I found useful during research on this enthralling topic are:
- http://android.stackexchange.com/questions/18857/how-to-build-compile-su-from-source
- execv command => http： //code.google.com/p/superuser/source/browse/trunk/su/su.c?r=2#169
- https://github.com/ChainsDD/su-binary
- http://e2e.ti.com/support/omap/ f / 849 / p / 178679 / 648158.aspx＃648158
- 来自Google I / O 2011的影片 http://www.youtube.com/watch?v=5yorhsSPFG4
- http://android.stackexchange.com/questions/18857/how-to-build-compile-su-from-source
- execv command => http://code.google.com/p/superuser/source/browse/trunk/su/su.c?r=2#169
- https://github.com/ChainsDD/su-binary
- http://e2e.ti.com/support/omap/f/849/p/178679/648158.aspx#648158
- A video from Google I/O 2011 http://www.youtube.com/watch?v=5yorhsSPFG4
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