IP Networking

Hello, is there some way to obtain system's IP adresses to bind socket to every of them separately instead od INADDR_ANY?

OR

If there is some way to get server's IP to which client has connected, for example:

server_app - bind to listen on INADDR_ANY, gets connected client to 1.2.3.4, communication works fine, but when server_app wants to know to which IP is connected client on it, it will get 0.0.0.0 or 127.0.0.1 which is bad

I want to know this because when I bind to INADDR_ANY and get incoming connection, I can only get client's IP and port, but don't know how to obtain server's IP which is connected to client (i always get 0.0.0.0).

Thanks for ideas..

//edit: And I forgot to write: unix/linux platform, not winsock

I'm too lazy to do this for you.... Get the Apache source code and see what it does. It somehow knows the IP that served the request and outputs it via the logfile (See custom log format documentation).

I was searching proftpd code, but the answer is hidden as much as possible. So I tried to solve it myself, and here is my solution:

char *ip=malloc(20*sizeof(char));
struct sockaddr_in myAddr;
int sin_size = sizeof(myAddr);

getsockname(clientSocket, (struct sockaddr *)&myAddr, (socklen_t *)&sin_size);
strncpy(ip,inet_ntoa(myAddr.sin_addr),strlen(inet_ntoa(myAddr.sin_addr)));