Best book for Objective-C networking?

I've already read "Programming in Objective-C 2.0; Second Edition" by Stephen G. Kochan, and I believe I have absorbed all the information from it.

After a while of programming with a friend of mine, we tried using online resources to begin making small little apps that would communicate with a server. Once that worked, we wanted to make our program secure using SSL. We couldn't find any information that helped, and we're stuck. Can anyone suggest an Objective C book for information on networking or CFNetwork?

 

I think you're implying I'm using an HTTP protocol with URLs. I am using CFNetwork sockets, HTTP and HTTPS has nothing to do with what I've been doing.

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Is this the book?

Also, I've used Beej's guide as a source many times. He never mentions any specifics on SSL.

 

Right now, I've been trying to make a server software that communicates with telnet. We had some non-SSL working examples earlier, and I can't seem to find them in my documents folder, but here is what I have now:

Code:

static void ServerAcceptCallBack(CFSocketRef socket, CFSocketCallBackType type, CFDataRef address, const void *data, void *info) {
//	Server *server = (__bridge Server *)info;
	printf("ServerAcceptCallBack called.\n");
	if (kCFSocketAcceptCallBack == type) { 
        // for an AcceptCallBack, the data parameter is a pointer to a CFSocketNativeHandle
        CFSocketNativeHandle nativeSocketHandle = *(CFSocketNativeHandle *)data;
        uint8_t name[SOCK_MAXADDRLEN];
        socklen_t namelen = sizeof(name);
        NSData *peer = nil;
        if (getpeername(nativeSocketHandle, (struct sockaddr *)name, &namelen) == 0) {
            peer = [NSData dataWithBytes:name length:namelen];
        }
        CFReadStreamRef readStream = NULL;
		CFWriteStreamRef writeStream = NULL;
        CFStreamCreatePairWithSocket(kCFAllocatorDefault, nativeSocketHandle, &readStream, &writeStream);
        if (readStream && writeStream) {
            CFReadStreamSetProperty(readStream, kCFStreamPropertyShouldCloseNativeSocket, kCFBooleanTrue);
            CFWriteStreamSetProperty(writeStream, kCFStreamPropertyShouldCloseNativeSocket, kCFBooleanTrue);
			SocketThread *thread = [[SocketThread alloc] init];
			[thread setupSocketwithReadStream:readStream andwithWriteStream:writeStream];
        } else {
            close(nativeSocketHandle);
        }
        if (readStream) CFRelease(readStream);
        if (writeStream) CFRelease(writeStream);
    }
}

@implementation Server

-(BOOL)setupServer:(int)port {
	CFSocketContext socketCtxt = {0, (__bridge void *)self, NULL, NULL, NULL};
    CFSocketRef socket = CFSocketCreate(kCFAllocatorDefault, PF_UNSPEC, SOCK_STREAM, IPPROTO_TCP, kCFSocketAcceptCallBack, (CFSocketCallBack)&ServerAcceptCallBack, &socketCtxt);
	printf("Initiating Server Setup...\n");
    if (socket == NULL) {
        if (socket) CFRelease(socket);
        socket = NULL;
        return NO;
    }
	
    int yes = 1;
    setsockopt(CFSocketGetNative(socket), SOL_SOCKET, SO_REUSEADDR, (void *)&yes, sizeof(yes));
	
    struct sockaddr_in addr;
    memset(&addr, 0, sizeof(addr));
    addr.sin_len = sizeof(addr);
    addr.sin_family = AF_INET;
    addr.sin_port = htons(port);
    addr.sin_addr.s_addr = htonl(INADDR_ANY);
    NSData *address = [NSData dataWithBytes:&addr length:sizeof(addr)];
	
    if (CFSocketSetAddress(socket, (__bridge CFDataRef)address) != kCFSocketSuccess) {
        if (socket) CFRelease(socket);
        socket = NULL;
        return NO;
    }
    printf("Server SHOULD be setup...\n");
	return YES;
}

@end