bind함수 에러

#include <stdio.h>
#include <stdlib.h>
#include <WinSock2.h>
#include <windows.h>
#include <process.h>
#include "resource.h"
#define ADR_SIZE 50
#define MAX_CLNT 10
 
int clntCnt = 0;
HINSTANCE g_hInst;
WSADATA wsaData;
SOCKET hServSock, hClntSock;
SOCKADDR_IN servAdr, clntAdr;
BOOL CALLBACK InputServInfoDlg(HWND hDlg, UINT iMessage, WPARAM wParam, LPARAM lParam);
BOOL CALLBACK ChatBoxDlg(HWND hDlg, UINT iMessage, WPARAM wParam, LPARAM lParam);
 
int APIENTRY WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance
	  ,LPSTR lpszCmdParam,int nCmdShow)
{
	g_hInst = hInstance;
	DialogBox(hInstance, MAKEINTRESOURCE(IDD_DIALOG1), HWND_DESKTOP, InputServInfoDlg);
	return 0;
}
 
BOOL CALLBACK InputServInfoDlg(HWND hDlg, UINT iMessage, WPARAM wParam, LPARAM lParam)
{
	int clntAdrSz;
	//unsigned int port;
	char addr[ADR_SIZE], port[8];
 
	switch(iMessage)
	{
	case WM_INITDIALOG:
		return TRUE;
	case WM_COMMAND:
		switch(LOWORD(wParam))
		{
		case IDOK:
			//port = GetDlgItemInt(hDlg, IDC_EDIT2, NULL, FALSE);
			GetDlgItemText(hDlg, IDC_EDIT1, (LPWSTR)addr, sizeof(addr));
			GetDlgItemText(hDlg, IDC_EDIT2, (LPWSTR)port, sizeof(port));
 
			if(WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
				exit(1);
 
			hServSock = socket(PF_INET, SOCK_STREAM, 0);
			if(hServSock == SOCKET_ERROR)
			{
				MessageBox(hDlg, TEXT("socket() error"), TEXT("Error"), MB_OK);
				EndDialog(hDlg, IDOK); exit(1);
			}
 
			memset(&servAdr, 0, sizeof(servAdr));
			servAdr.sin_family = AF_INET;
			servAdr.sin_addr.s_addr = inet_addr(addr);
			servAdr.sin_port = htons(atoi(port));
 
			if(bind(hServSock, (SOCKADDR*)&servAdr, sizeof(servAdr)) == SOCKET_ERROR)
			{
				MessageBox(hDlg, TEXT("bind() error"), TEXT("Error"), MB_OK);
				EndDialog(hDlg, IDOK); exit(1);
			}