' ' will give me an error. Doing '\0' will give me new errors: error C2137

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C++

errors

#include <winsock2.h>
#include <iostream>

using namespace std;

// -----------------------------------------------------------------------------------
// StartServerListening() - will return us a socket that is bound to the
// port we specify, and is listening for connections if all operations succeeded,
// and a -1 if startup failed.
int StartServerListening(unsigned short port);

// -----------------------------------------------------------------------------------
// EndServer() - will take the socket we specify and shutdown the
// network utilities we started with StartServerListening()
// Note: In order to function properly, the socket passed in MUST be the
// socket created by the StartServerListening() function
void EndServer(int socket);


int main()
{
    cout << "Server: Part 4a\n";
    cout << "Server: Celestialkey's Tutorial\n\n";

    int serverSocket; // Used to listen

    serverSocket = StartServerListening(7700);

    
    if (serverSocket == -1)
    {
        cout << "Oh god... Everything went wrong!! Run!\n";
        return 1;
    }

    int clientSocket; // Socket to accept
    clientSocket = accept(serverSocket, 0, 0);


    if (clientSocket == SOCKET_ERROR)
    {
        cout << "Server: Heh, Taught him a lesson on acceptence...\n";
    }


    int nBytes;
    

    #define MAX_MESSAGE_SIZE 4096 // We need a big enough buffer for our maximum message size.

    char buffer[MAX_MESSAGE_SIZE];

    unsigned long messageSize; // We need a variable for our size.


    nBytes = recv(clientSocket, (char*)&messageSize, sizeof(messageSize), 0);

    if (nBytes == SOCKET_ERROR)
    {
        cout << "Server: I failed you master! Nothing was recieved!\n";
    }

    messageSize = ntohl(messageSize);    // Remember to fix our byte ordering since this is a number

    nBytes = recv(clientSocket, buffer, messageSize, 0);

    if (nBytes == SOCKET_ERROR)
    {
        cout << "Server: Recv Failed!\n";
    }

    
    buffer[messageSize] = ''; // Place the terminator in the string 'messageSize'

    cout << "Server: Someone said : " << buffer << endl;


    closesocket(clientSocket);

    EndServer(serverSocket);

    cout << "Server: Press any key to turn me off baby ...\n";
    getchar();
    
    return 0;
}


// -----------------------------------------------------------------------------------
// StartServerListening() - a function to startup winsock, and open a socket for listening

int StartServerListening(unsigned short port)
{
    int error;

    WSAData wsaData;

    if ((error = WSAStartup(MAKEWORD(2, 2), &wsaData)) == SOCKET_ERROR) {
        cout << "Server: WinSock is being a bitch, smack it a few times eh?\n";
        return -1;
    }

    int mySocket = socket(AF_INET, SOCK_STREAM, 0);

    if (mySocket == SOCKET_ERROR)
    {
        cout << "Server: Something went terribly wrong, the socket wont open!\n";
        return -1;
    }

    struct sockaddr_in server;

    server.sin_family = AF_INET;
    server.sin_port = htons(port);
    server.sin_addr.s_addr = INADDR_ANY;

    if (bind(mySocket, (sockaddr*)&server, sizeof(server)) == SOCKET_ERROR)
    {
        cout << "Server: It wont let me bind correctly.\n";
        closesocket(mySocket);
        return -1;
    }

    if (listen(mySocket, 5) == SOCKET_ERROR)
    {
        cout << "Server: Damnit.. im deaf... Listening Failed!\n";
        closesocket(mySocket);
        return -1;

    }

    cout << "Server: Im up and running boss!\n";

    return mySocket;
}


// -----------------------------------------------------------------------------------
// EndServer() - a function to shutdown a socket and clean up winsock

void EndServer(int socket)
{
    closesocket(socket);

    WSACleanup();

    cout << "Server: Remember the Alamo!\n";
}

Will give me error error C2137: empty character constant
If i change '' to "" the error will be: error C2440: '=' : cannot convert from 'const char [1]' to 'char'
If i change "" or '' to '\0' i get: 1>main.obj : error LNK2019: unresolved external symbol __imp__closesocket@4 referenced in function _main
1>main.obj : error LNK2019: unresolved external symbol __imp__ntohl@4 referenced in function _main
1>main.obj : error LNK2019: unresolved external symbol __imp__recv@16 referenced in function _main
1>main.obj : error LNK2019: unresolved external symbol __imp__accept@12 referenced in function _main
1>main.obj : error LNK2019: unresolved external symbol __imp__listen@8 referenced in function "int __cdecl StartServerListening(unsigned short)" (?StartServerListening@@YAHG@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__bind@12 referenced in function "int __cdecl StartServerListening(unsigned short)" (?StartServerListening@@YAHG@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__htons@4 referenced in function "int __cdecl StartServerListening(unsigned short)" (?StartServerListening@@YAHG@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__socket@12 referenced in function "int __cdecl StartServerListening(unsigned short)" (?StartServerListening@@YAHG@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__WSAStartup@8 referenced in function "int __cdecl StartServerListening(unsigned short)" (?StartServerListening@@YAHG@Z)
1>main.obj : error LNK2019: unresolved external symbol __imp__WSACleanup@0 referenced in function "void __cdecl EndServer(int)" (?EndServer@@YAXH@Z)
1>c:\users\james.stream\documents\visual studio 2010\Projects\TheServer\Debug\TheServer.exe : fatal error LNK1120: 10 unresolved externals



Cheers

This is not my code. Im using it to learn about chat boxes.