problem with winsock tutorials
this is code i downloaded of the internet and tried:
#include <winsock.h> // winsock.h always needs to be included
#include <stdio.h>
int main(int argc, char** argv) {
WORD version = MAKEWORD(1,1);
WSADATA wsaData;
int nRet;
//
// First, we start up Winsock
//
WSAStartup(version, &wsaData);
//
// Next, create the socket itself
//
SOCKET listeningSocket;
listeningSocket = socket(AF_INET, // Go over TCP/IP
SOCK_STREAM, // Socket type
IPPROTO_TCP); // Protocol
if (listeningSocket == INVALID_SOCKET) {
printf("Error at socket()");
return 0;
}
//
// Use SOCKADDR_IN to fill in address information
//
SOCKADDR_IN saServer;
saServer.sin_family = AF_INET;
saServer.sin_addr.s_addr = INADDR_ANY; // Since this is a server, any address will do
saServer.sin_port = htons(8888); // Convert int 8888 to a value for the port field
//
// Bind the socket to our local server address
//
nRet = bind(listeningSocket, (LPSOCKADDR)&saServer, sizeof(struct sockaddr));
if (nRet == SOCKET_ERROR) {
printf("Error at bind()");
return 0;
}
//
// Make the socket listen
//
nRet = listen(listeningSocket, 10); // 10 is the number of clients that can be queued
if (nRet == SOCKET_ERROR) {
printf("Error at listen()");
return 0;
}
//
// Wait for a client
//
SOCKET theClient;
theClient = accept(listeningSocket,
NULL, // Wait for a specific address to connect; here there is none
NULL);
if (theClient == INVALID_SOCKET) {
printf("Error at accept()");
return 0;
}
// Send/receive from the client, and finally:
closesocket(theClient);
closesocket(listeningSocket);
//
// Shutdown Winsock
//
WSACleanup();
}
but i get all these errors when i try it.
--------------------Configuration: system - Win32 Debug--------------------
Compiling...
source.cpp
C:\Program Files\Microsoft Visual Studio\MyProjects\system\source.cpp(85) : warning C4715: 'main' : not all control paths return a value
Linking...
source.obj : error LNK2001: unresolved external symbol _WSACleanup@0
source.obj : error LNK2001: unresolved external symbol _closesocket@4
source.obj : error LNK2001: unresolved external symbol _accept@12
source.obj : error LNK2001: unresolved external symbol _listen@8
source.obj : error LNK2001: unresolved external symbol _bind@12
source.obj : error LNK2001: unresolved external symbol _htons@4
source.obj : error LNK2001: unresolved external symbol _socket@12
source.obj : error LNK2001: unresolved external symbol _WSAStartup@8
Debug/system.exe : fatal error LNK1120: 8 unresolved externals
Error executing link.exe.
system.exe - 9 error(s), 1 warning(s)
