Can I Use LINUX Socket?

[Nand]

Hi,
Can I use LINUX Socket to open a connection? If yes, then are there
any permissions to be set? and how to do the same.

Please help me,

Related post :
http://groups.google.com/group/android-ndk/browse_thread/thread/24f6ce5a2fbe2a71/f736ed26b888b08f?lnk=gst&q=socket#f736ed26b888b08f

Thanks in advance,
Nand

[Nand]

Hi,
I'm not able to open a socket connection using socket API available in
C library. I'm stuck in accept() method. I'm able to bind the socket
at server but not accept() function is not being called when a client
tries to connect to server.
I have also set the Internet permission in my manifest file.

Please help me.

Regards,
Nand

[Christian Linne]

If you try to create

(1) your socket (anything g.o.e. 0 is ok),

(2) a connection using it ( "connect(..)"),

what are the return values of the function calls, and what is "errno" afterwards?

 

I've had a similar issue with bluetooth-sockets, which do not work, but I've heard that connections using the network interface should work - haven't tried that yet.

 

Return values may be checked here (for connect) and here (for socket) .

2010/8/27 Nand <nandit...@gmail.com>

Nand

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[Nand]

Hi,
I'm getting an error code no.10060 at client side which i think is for
timed out error.
I'm able to bind the socket at server side but accept() is not called
at server side

Regards,
Nand

[Nand]

[David Turner]

are you running the server on the emulator or a device ? If a device, is it on 3g or WiFi.

For the record, 3G connections are usually NAT-ed by cell carriers, so you can't easily connect to a server running on a device anyway.

On WiFi, you should be able to do that, assuming you have the device's IP address (and you're not behind a firewall, etc...)

Finally, in the case of the emulator, you will need to setup a network redirection explicitely to allow your Windows client program to connect to the server inside the guest system. Look at the emulator networking doc for details.

Regards,
Nand

[nanditha bg]

Hi,

I'm running the server on device using WiFi. I know the ip adress and also able to ping. But not able to connect yo the server

[Chris Stratton]

You might want to try getting yourself an android build of a great
command line tool called netcat or nc to use for testing. I dont
know if its in the official builds but know its in cyanogen, and would
probably work if you copied the binary out of update.zip from a
comparable android generation to somewhere executable on your device.
It should also build easily from source.

One test you will want to do is using that under the adb shell to
contact your service from inside the phone.

You might also be able to use connectbot or similar app to contact
your server (think of it as telnetting to an unusual port)