/* This file is NOT open source. See "license.txt" to read the full license provided with the Xfire SDK. */
#define WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <tlhelp32.h>
#include "xfiregameclient.h"
static HMODULE g_toucan_dll = NULL;
static void HelperInit();
static HMODULE HelperGetToucanDLL();
typedef int (*XfireSetCustomGameDataAFunction)(int , const char **, const char **);
typedef int (*XfireSetCustomGameDataWFunction)(int , const wchar_t **, const wchar_t **);
typedef int (*XfireSetCustomGameDataUTF8Function)(int , const char **, const char **);
static XfireSetCustomGameDataAFunction ptr_XfireSetCustomGameDataA = NULL;
static XfireSetCustomGameDataWFunction ptr_XfireSetCustomGameDataW = NULL;
static XfireSetCustomGameDataUTF8Function ptr_XfireSetCustomGameDataUTF8 = NULL;
/* make sure we are going to call the ANSI version */
#ifdef MODULEENTRY32
#undef MODULEENTRY32
#endif
#ifdef Module32First
#undef Module32First
#endif
#ifdef Module32Next
#undef Module32Next
#endif
int XfireIsLoaded()
{
HelperInit();
if (ptr_XfireSetCustomGameDataA &&
ptr_XfireSetCustomGameDataW &&
ptr_XfireSetCustomGameDataUTF8)
return 1;
return 0;
}
int XfireSetCustomGameDataA(int num_keys, const char **keys, const char **values)
{
HelperInit();
if (ptr_XfireSetCustomGameDataA)
return ptr_XfireSetCustomGameDataA(num_keys, keys, values);
return 1;
}
int XfireSetCustomGameDataW(int num_keys, const wchar_t **keys, const wchar_t **values)
{
HelperInit();
if (ptr_XfireSetCustomGameDataW)
return ptr_XfireSetCustomGameDataW(num_keys, keys, values);
return 1;
}
int XfireSetCustomGameDataUTF8(int num_keys, const char **keys, const char **values)
{
HelperInit();
if (ptr_XfireSetCustomGameDataUTF8)
return ptr_XfireSetCustomGameDataUTF8(num_keys, keys, values);
return 1;
}
/* ------------------------------------------------------------------------- */
static void HelperInit()
{
if (!ptr_XfireSetCustomGameDataA ||
!ptr_XfireSetCustomGameDataW ||
!ptr_XfireSetCustomGameDataUTF8)
{
HMODULE toucan_dll = HelperGetToucanDLL();
if (toucan_dll)
{
ptr_XfireSetCustomGameDataA = (XfireSetCustomGameDataAFunction)::GetProcAddress(toucan_dll, "ToucanSendGameClientDataA_V1");
ptr_XfireSetCustomGameDataW = (XfireSetCustomGameDataWFunction)::GetProcAddress(toucan_dll, "ToucanSendGameClientDataW_V1");
ptr_XfireSetCustomGameDataUTF8 = (XfireSetCustomGameDataUTF8Function)::GetProcAddress(toucan_dll, "ToucanSendGameClientDataUTF8_V1");
}
}
}
static HMODULE HelperGetToucanDLL()
{
if (g_toucan_dll)
return g_toucan_dll;
/*
** We need to enumerate the DLLs loaded to find toucan dll.
** This is done because the toucan dll changes with each update.
** The toucan dll has the following format. "xfire_toucan_{BUILD_NUMBER}.dll"
** We simply try to find a dll w/ the prefix "xfire_toucan"
*/
HANDLE snapshot_handle = CreateToolhelp32Snapshot(TH32CS_SNAPMODULE, GetCurrentProcessId());
if (snapshot_handle != INVALID_HANDLE_VALUE)
{
MODULEENTRY32 module_entry;
module_entry.dwSize = sizeof(MODULEENTRY32);
BOOL result = Module32First(snapshot_handle, &module_entry);
char module_name[] = "xfire_toucan";
DWORD module_name_len = sizeof(module_name)-1;
while (result)
{
if (CompareStringA(LOCALE_USER_DEFAULT, NORM_IGNORECASE, module_entry.szModule, module_name_len, module_name, module_name_len) == CSTR_EQUAL)
{
g_toucan_dll = module_entry.hModule;
break;
}
result = Module32Next(snapshot_handle, &module_entry);
}
CloseHandle(snapshot_handle);
}
return g_toucan_dll;
}