错误：CFSocketSetAddress绑定失败：1

Question

我似乎找不到我的套接字为null的位置。我遇到了错误：

  

错误：CFSocketSetAddress绑定失败：1

我不想固定端口号，因为我有一个客户端每次都连接在不同的端口号上，并且它通过相同的protocolIdentifier查找服务器。

我的代码如下：

    listenSocket = CFSocketCreate(kCFAllocatorDefault,
                                      PF_INET,
                                      SOCK_STREAM,
                                      IPPROTO_TCP,
                                      kCFSocketAcceptCallBack,
                                      (CFSocketCallBack)&ServerStubAcceptCallback,
                                      &socketContext);
        if (NULL == listenSocket)
            //TODO: raise exception etc...
            return NO;

    int yes = 1;

         setsockopt(CFSocketGetNative(listenSocket), SOL_SOCKET, SO_REUSEADDR, (void *)&yes, sizeof(yes));
    struct sockaddr_in listenSocketAddress;
        memset(&listenSocketAddress, 0, sizeof(listenSocketAddress));
        listenSocketAddress.sin_len            = sizeof(listenSocketAddress);
        listenSocketAddress.sin_family        = AF_INET;
        listenSocketAddress.sin_port        = htons(self.listenPort);    
        listenSocketAddress.sin_addr.s_addr    = htonl(INADDR_ANY);     
         NSData *listenSocketAddressData   = [NSData dataWithBytes:&listenSocketAddress length:sizeof(listenSocketAddress)];
     listenSocketAddressData = (NSData *)CFBridgingRelease(CFSocketCopyAddress(listenSocket));
if (kCFSocketSuccess != CFSocketSetAddress(listenSocket,(CFDataRef)listenSocketAddressData))
        {
            if (listenSocket) 
    CFRelease(listenSocket);
            listenSocket = NULL;
            return NO;
        }
        memcpy(&listenSocketAddress, [listenSocketAddressData bytes], [listenSocketAddressData length]);

        self.listenPort = ntohs(listenSocketAddress.sin_port);

        // create a RunLoopSource from the socket
        CFRunLoopRef        runLoop                = CFRunLoopGetCurrent();
        CFRunLoopSourceRef    listenSocketSource    = CFSocketCreateRunLoopSource(kCFAllocatorDefault, listenSocket, 0);

        // add it to the runloop
        CFRunLoopAddSource(runLoop, listenSocketSource, kCFRunLoopCommonModes);
    CFRelease(listenSocketSource);