preliminary Worldshift support

Author: anzz1

.gitignore

@@ -0,0 +1,5 @@
+/bin
+/build
+.DS_Store
+.DS_Store?
+Thumbs.db

dllmain.c

@@ -50,6 +50,7 @@
   #include "include/game_nolf.h"
   #include "include/game_bf2142.h"
   #include "include/game_stlegacy.h"
+  #include "include/game_worldshift.h"
 #endif // !_WIN64
 
 #include "include/picoupnp.h"
@@ -290,6 +291,8 @@ int __stdcall DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID lpReserved) {
           patch_bf2142();
         } else if (!__stricmp(p, "legacy.exe")) { // Star Trek: Legacy
           patch_stlegacy();
+        } else if (!__stricmp(p, "worldshift.exe")) { // Worldshift
+          patch_worldshift();
         } else if (!__stricmp(p, "serioussam.exe") || !__stricmp(p, "sam2.exe") || !__stricmp(p, "dedicatedserver.exe")) { // Serious Sam 1 & 2
           force_bind_ip = 0;
           patch_sam();

include/game_worldshift.h

@@ -0,0 +1,34 @@
+// game_worldshift.h
+
+#ifndef __GAME_WORLDSHIFT_H
+#define __GAME_WORLDSHIFT_H
+
+#include "include/global.h"
+#include "iathook/iathook.h"
+
+LPHOSTENT __stdcall hk_gethostbyname(const char* name);
+
+LPHOSTENT __stdcall worldshift_hk_gethostbyname(const char* name) {
+  if (name && !__strcmp(name, "worldshift-game.com"))
+    return ogethostbyname("motd.openspy.net");
+  else
+    return hk_gethostbyname(name);
+}
+
+// Disable HTTPS
+__forceinline static void worldshift_disable_https() {
+  BYTE* ptr = 0;
+  BYTE search[] = {0xC7,0x46,0x28,0x01,0x00,0x00,0x00,0x83,0xC7,0x08};
+
+  ptr = find_pattern_mem(0, search, search + 9, TRUE);
+  if (ptr)
+    write_mem(ptr+3, "\0", 1);
+}
+
+__noinline static void patch_worldshift() {
+  HOOK_FUNC(0, gethostbyname, worldshift_hk_gethostbyname, "ws2_32.dll", 52, TRUE);
+  worldshift_disable_https();
+  gs_replace_pubkey(0);
+}
+
+#endif // __GAME_WORLDSHIFT_H