Re: Getting sender's IP address from CFHTTPMessageRef

Thanks Jens

I'm using BSD sockets so couldn't use CFSocketCopyPeerAddress. Here's the solution (with error checking removed)

socklen_t addrLen;

struct sockaddr addr;

char addrstr[INET6_ADDRSTRLEN];

requestFD = accept(listenFD, &addr, &addrLen);

if (addr.sa_family == AF_INET)

{

struct sockaddr_in temp = *(struct sockaddr_in *)addr.sa_data;

inet_ntop(AF_INET, &temp, addrstr, sizeof(addrstr));

}

else if (addr.sa_family == AF_INET6)

{

struct sockaddr_in6 temp = *(struct sockaddr_in6 *)addr.sa_data;

inet_ntop(AF_INET6, &temp, addrstr, sizeof(addrstr));

}

callerAddress = [[NSString alloc] initWithBytes: addrstr length: addrLen encoding: NSUTF8StringEncoding];

- Ken

On May 29, 2011, at 4:43 PM, Jens Alfke wrote:

On May 29, 2011, at 2:38 AM, Ken Tozier wrote:

I'm writing a web server class and have everything working nicely, but want to get my hands on the sender's IP address, so my server can track traffic from various sources. I read the CFHTTPMessage docs and there doesn't seem to be any accessors for request sender address. I tried NSLog(@headers: %@", CFHTTPMessageCopyAllHeaderFields(message)) but didn't see anything. Is there something I'm missing? Or do I have to resort to BSD socket calls on the file descriptor?

The sender’s address is an attribute of the TCP connection, so it would be redundant to put it in an HTTP header. So yes, you’ll need to ask the socket for it (through whatever API you’re using to access the socket.) If you’re using CFSocket, the call you want is CFSocketCopyPeerAddress.

—Jens

References:
	>Getting sender's IP address from CFHTTPMessageRef (From: Ken Tozier <email@hidden>)
	>Re: Getting sender's IP address from CFHTTPMessageRef (From: Jens Alfke <email@hidden>)