topic Re: how to know connected host system IP? in MQX Software Solutions

how to know connected host system IP?

sudhakarp — Wed, 03 Jun 2015 06:08:46 GMT

Hi,

i am using frdmk64. and using kds2.0 and ksdk1.1.0 example. i want to know connected host(or remote) system ip address.

if any function there? i am listening one port but i dnt know which IP was connected to my device.

how to get IP address of Remote(Host) System.

regards,

sudhakar p

danielchen — Wed, 03 Jun 2015 06:59:07 GMT

I think you can get the ip address by getpeername(), Please check the MQX RTOS RTCS User's guide for details

7.2.33 getpeername()

Gets the remote endpoint identifier of a socket.

Synopsis

uint32_t getpeername(

uint32_t socket,

sockaddr * name,

uint16_t * namelen)

Have a nice day,
Daniel

sudhakarp — Wed, 03 Jun 2015 08:32:05 GMT

hi,

actually i tried following method is it correct..?

client_sock = accept(conn_sock, NULL, NULL);

getpeername(conn_sock,&addr,sizeof(&addr));

printf("Remote IP=%u\n\r", ((sockaddr_in*) &addr)->sin_addr.s_addr);

but i am getting ZERO only

OUTPUT

Remote IP=0

give some other idea.

regards,

sudhakar p

sudhakarp — Fri, 05 Jun 2015 05:06:43 GMT

Hi daniel,

thanks for your information. I got solution for this.

client_sock = accept(conn_sock, NULL, NULL);
instead of this i tried

client_sock= accept(conn_sock, &remote_sin, &remote_addrlen);

printf("\nConnection accepted from %lx, port %d",

remote_sin.sin_addr, remote_sin.sin_port);

regards,

sudhakar p