Socket Creation fails in native code

[Riasat Abir]

Hi all,

I've created a socket in the native code.

m_sock = socket(m_iAf, m_iType, m_iProtocol); // m_iAf = 2, m_iType= 2, m_iProtocol = 17(udp)

Through debugging with ndk-gdb, I found that it's returning -1 that means socket creation has failed.

How can I find it out why it fails?

I tried to debug with: printf("errno = %d, %s\n", errno, strerror(errno));

But printed line doesn't show up in the console of ndk-gdb.

Any help?

Regards,

Riasat

[Riasat Abir]

m_sock = socket(AF_INET, SOCK_DGRAM, m_iProtocol); //udpprotocol

Ok I found the errno: 13

and the reason says  0xafd471ec "Permission denied"

What does it mean?

Which permission to enable for socket creating?

Thanks,

Riasat

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HimHim

[Srinidhi K V]

You need "su" permission to create a socket, unless you hack the kernel.

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[Riasat Abir]

I am running on windows platform with Cygwin.

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HimHim

[Riasat Abir]

I've tried in ubuntu with super user mode.

Says the same.

Permission denied, errno 13

On Tue, Mar 29, 2011 at 12:10 PM, Srinidhi K V <srini...@yahoo.co.in> wrote:

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HimHim

[Riasat Abir]

I've figured out the solution.

My application didn't have internet access permission.

I added this line:

<uses-permission android:name="android.permission.INTERNET" />

So if anyone faces problem with permission, check the application permission.

Thanks,

Riasat

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HimHim

[Nasif Noorudeen]

you have to give android permission for internet in manifest file



If you want to see the datas that is printed in native side


you have to use functions from android/log.h in the android-ndk/platform/include.....




and LOCAL_LDLIBS --llog in android.mk