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c++socketsarguments

C++ connect function error - Invalid argument


I'm trying to make a simple socket client (using debian 6 and g++ compiler) and when I'm calling connect function, it returns error code 22 - Invalid argument.

I've read the man page for this function and it says that the 3 arguments must be as followed: int, struct sockaddr*, and socklen_t.

My code is:

int                   serverPort;
u_long                serverHost;
struct sockaddr_in    serverAddress;
socklen_t             serverAddressLength;
int                   clientSocket;

serverPort = 44444;
serverHost = inet_addr ( "88.198.237.65" );
serverAddress.sin_family = AF_INET;
serverAddress.sin_port =  htons ( serverPort );
serverAddress.sin_addr.s_addr = htons ( serverHost );
serverAddressLength = sizeof ( serverAddress );

clientSocket = socket ( AF_INET , SOCK_STREAM , 0 );

connect ( clientSocket , (sockaddr*)&serverAddress , serverAddressLength )

Solution

  •   serverAddress.sin_addr.s_addr = htons ( serverHost );
    

    An IPv4 address is a long, not a short, so htons is right out. The data is in network byte order already anyway, so no conversion is needed.

    The inet_addr() function converts the Internet host address cp from IPv4 numbers-and-dots notation into binary data in network byte order.

    Also:

     char                  serverHost;
    

    How's it supposed to fit in a char?