How to get client ip address in AF_INET

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C++

Linux

network

how can i get client ip address in AF_INET ?
I want to write a program does as a listener!
and log input information!

Posted 21-Jul-12 21:52pm

Bathooman

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Volynsky Alex · Accepted Answer · 2012-07-22T12:25:00

Solution 2

Maybe it will help you:
http://www.geekpage.jp/en/programming/linux-network/get-ipaddr.php[^]
http://stackoverflow.com/questions/5401942/how-to-get-the-ip-address-of-the-accepted-in-bound-socket[^]

Posted 22-Jul-12 12:25pm

Volynsky Alex

Code-o-mat · Accepted Answer · 2012-07-21T23:35:00

Solution 1

Not completely sure this is what you mean, but you can specify a struct to the accept[^] call (you use this to accept connection requests from clients) that is filled with the client's IP and port. Google for "accept socket" for more information and possible examples.

Posted 21-Jul-12 23:35pm

Code-o-mat

Comments

[no name] 22-Jul-12 5:46am

i meant if i want to write a program that listen on a specific port and i want to log any ip address that try to connect my listening server

Code-o-mat 22-Jul-12 5:55am

Then I still say what I originally wrote should work.

[no name] 24-Jul-12 7:47am

struct sockaddr_in cltaddr;
cs = accept(sock ,(struct sockaddr *)&cltaddr ,&addrlen);
printf("%d" ,(cltaddr.sin_addr.s_addr);

how can i show the client ip address in network byte order?

Code-o-mat 24-Jul-12 9:20am

How about the function inet_ntoa ( http://linux.die.net/man/3/inet_ntoa )? You can also see it being used in the examples shown to you by Volynsky Alex (Solution 2).