#define WIN32_LEAN_AND_MEAN

#include <windows.h>
#include <winsock.h>

#include <stdio.h>

static void TlsGet( void );

static DWORD tlsIdx;
  
int main( void )
{
  SetLastError(WSAEHOSTUNREACH);
  printf("LastError %d\n", GetLastError());
  printf("WSALastError %d\n", WSAGetLastError());
  WSASetLastError(WSAEHOSTUNREACH);
  printf("LastError %d\n", GetLastError());
  printf("WSALastError %d\n", WSAGetLastError());

  tlsIdx = TlsAlloc();
  TlsSetValue( tlsIdx, (void *) 0x1234 );
  TlsGet();

  printf("LastError %d\n", GetLastError());
  printf("WSALastError %d\n", WSAGetLastError());
  
  return 0;
}


static void TlsGet( void )
{
  DWORD lastError = GetLastError();
  TlsGetValue(tlsIdx);
  printf("LastError after TlsGetValue : %d\n", GetLastError());
  SetLastError(lastError);
}