static bool
mm_DetectGameInformation()
{
char game_path[PLATFORM_MAX_PATH];
if (game_info_detected)
return game_info_detected == 1 ? true : false;
game_info_detected = -1;
mm_GetGameName(game_name, sizeof(game_name));
if (!mm_GetFileOfAddress((void*)mm_DetectGameInformation, mm_path, sizeof(mm_path)))
{
mm_LogFatal("Could not locate Metamod loader library path");
return false;
}
if (!mm_ResolvePath(game_name, game_path, sizeof(game_path)))
{
mm_LogFatal("Could not resolve path: %s", game_name);
return false;
}
FILE *fp;
char gameinfo_path[PLATFORM_MAX_PATH];
mm_PathFormat(gameinfo_path, sizeof(gameinfo_path), "%s/gameinfo.txt", game_path);
if ((fp = fopen(gameinfo_path, "rt")) == NULL)
{
mm_LogFatal("Could not read file: %s", gameinfo_path);
return false;
}
char temp_path[PLATFORM_MAX_PATH];
char cur_path[PLATFORM_MAX_PATH];
getcwd(cur_path, sizeof(cur_path));
char *ptr;
const char *lptr;
bool search = false;
char buffer[255], key[128], val[128];
while (!feof(fp) && fgets(buffer, sizeof(buffer), fp) != NULL)
{
mm_TrimComments(buffer);
mm_TrimLeft(buffer);
mm_TrimRight(buffer);
if (stricmp(buffer, "SearchPaths") == 0)
search = true;
if (!search)
continue;
mm_KeySplit(buffer, key, sizeof(key) - 1, val, sizeof(val) - 1);
if (stricmp(key, "Game") != 0 && stricmp(key, "GameBin") != 0)
continue;
if (strncmp(val, "|gameinfo_path|", sizeof("|gameinfo_path|") - 1) == 0)
{
ptr = &val[sizeof("|gameinfo_path|") - 1];
if (ptr[0] == '.')
ptr++;
lptr = game_path;
}
else
{
ptr = val;
lptr = cur_path;
}
if (stricmp(key, "GameBin") == 0)
mm_PathFormat(temp_path, sizeof(temp_path), "%s/%s/" SERVER_NAME, lptr, ptr);
else if (!ptr[0])
mm_PathFormat(temp_path, sizeof(temp_path), "%s/bin/" SERVER_NAME, lptr);
else
mm_PathFormat(temp_path, sizeof(temp_path), "%s/%s/bin/" SERVER_NAME, lptr, ptr);
if (mm_PathCmp(mm_path, temp_path))
continue;
FILE *exists = fopen(temp_path, "rb");
if (!exists)
continue;
fclose(exists);
/* exists is still non-NULL... use this as a flag */
for (unsigned int i = 0; i < gamedll_path_count; i++)
{
if (mm_PathCmp(gamedll_paths[i], temp_path))
{
exists = NULL;
break;
}
}
if (!exists)
continue;
mm_Format(gamedll_paths[gamedll_path_count],
PLATFORM_MAX_PATH,
"%s",
temp_path);
gamedll_path_count++;
if (gamedll_path_count == MAX_GAMEDLL_PATHS)
break;
}
fclose(fp);
game_info_detected = 1;
if (gamedll_path_count == 0)
{
mm_LogFatal("Could not detect any valid game paths in gameinfo.txt");
return false;
}
return true;
}
virtual bool Load(QueryValveInterface engineFactory, QueryValveInterface gsFactory)
{
if (!load_allowed)
return false;
load_allowed = false;
/* Backend should already filled in if loaded as gamedll */
if (gamedll_bridge == NULL)
{
mm_GetGameName(game_name, sizeof(game_name));
mm_backend = mm_DetermineBackend(engineFactory, gsFactory, game_name);
}
if (mm_backend == MMBackend_UNKNOWN)
{
mm_LogFatal("Could not detect engine version");
return false;
}
void **this_vtable;
this_vtable = (void **)*(void **)this;
if (mm_backend != MMBackend_Episode1
&& mm_backend != MMBackend_DarkMessiah)
{
/* We need to insert the right type of call into this vtable */
void **vtable_src;
IRandomThings sample;
SourceHook::MemFuncInfo mfp_dest, mfp_src;
mfp_dest.isVirtual = false;
mfp_src.isVirtual = false;
SourceHook::GetFuncInfo(&ServerPlugin::ClientCommand, mfp_dest);
SourceHook::GetFuncInfo(&IRandomThings::ClientCommand, mfp_src);
assert(mfp_dest.isVirtual);
assert(mfp_dest.thisptroffs == 0);
assert(mfp_dest.vtbloffs == 0);
assert(mfp_src.isVirtual);
assert(mfp_src.thisptroffs == 0);
assert(mfp_src.vtbloffs == 0);
vtable_src = (void **)*(void **)&sample;
SourceHook::SetMemAccess(&this_vtable[mfp_dest.vtblindex],
sizeof(void*),
SH_MEM_READ|SH_MEM_WRITE|SH_MEM_EXEC);
this_vtable[mfp_dest.vtblindex] = vtable_src[mfp_src.vtblindex];
}
/* AS inserted ClientFullyConnect into vtable, so move entries up on older engines */
if (mm_backend != MMBackend_AlienSwarm
&& mm_backend != MMBackend_Portal2
&& mm_backend != MMBackend_Blade
&& mm_backend != MMBackend_Insurgency
&& mm_backend != MMBackend_DOI
&& mm_backend != MMBackend_CSGO
&& mm_backend != MMBackend_DOTA)
{
SourceHook::MemFuncInfo mfp_fconnect;
mfp_fconnect.isVirtual = false;
SourceHook::GetFuncInfo(&ServerPlugin::ClientFullyConnect, mfp_fconnect);
assert(mfp_fconnect.isVirtual);
assert(mfp_fconnect.thisptroffs == 0);
assert(mfp_fconnect.vtbloffs == 0);
/* Shifting ClientDisconnect through OnQueryCvarValueFinished up into slot for
* ClientFullyConnect (8 entries)
*/
SourceHook::SetMemAccess(&this_vtable[mfp_fconnect.vtblindex],
sizeof(void *) * 8,
SH_MEM_READ|SH_MEM_WRITE|SH_MEM_EXEC);
memmove(&this_vtable[mfp_fconnect.vtblindex],
&this_vtable[mfp_fconnect.vtblindex + 1],
sizeof(void *) * 8);
}
char error[255];
if (gamedll_bridge == NULL)
{
if (!mm_LoadMetamodLibrary(mm_backend, error, sizeof(error)))
{
mm_LogFatal("Detected engine %d but could not load: %s", mm_backend, error);
return false;
}
}
typedef IVspBridge *(*GetVspBridge)();
GetVspBridge get_bridge = (GetVspBridge)mm_GetProcAddress("GetVspBridge");
if (get_bridge == NULL)
{
if (gamedll_bridge == NULL)
{
mm_UnloadMetamodLibrary();
}
mm_LogFatal("Detected engine %d but could not find GetVspBridge callback", mm_backend);
return false;
}
vsp_bridge = get_bridge();
vsp_bridge_info info;
info.engineFactory = engineFactory;
info.gsFactory = gsFactory;
info.vsp_callbacks = (IServerPluginCallbacks*)this;
info.vsp_version = vsp_version;
strcpy(error, "Unknown error");
if (!vsp_bridge->Load(&info, error, sizeof(error)))
{
vsp_bridge = NULL;
if (gamedll_bridge == NULL)
{
mm_UnloadMetamodLibrary();
}
mm_LogFatal("Unknown error loading Metamod for engine %d: %s", mm_backend, error);
return false;
}
return true;
}