add 'Sacrifice' support

README.md

@@ -77,6 +77,7 @@ Please note that the GameSpy protocol is old and does not meet modern password e
 | Nerf Arena Blast | <picture><img src="./.github/img/disc.png" title="Retail" alt="(Retail)" /></picture> | n/a | n/a | <sub><sup>[1]</sup> No DLL, use [this configuration file](https://github.com/anzz1/openspy-client/files/12753460/NAB-OpenSpy.zip) instead<br><sup>[2]</sup> Latest [v1.2 update](https://taco.cab/files/games/nerf/nerfpatch1-2.zip) is recommended</sub> |
 | Painkiller | <picture><img src="./.github/img/disc.png" title="Retail" alt="(Retail)" /></picture>&nbsp;<a href="https://www.gog.com/en/game/painkiller"><img src="./.github/img/gog.png" title="GOG" alt="(GOG)" /></a>&nbsp;<a href="https://store.steampowered.com/app/39530/Painkiller_Black_Edition/"><img src="./.github/img/steam.png" title="Steam" alt="(Steam)" /></a> | `dinput8.dll` | n/a |   |
 | ParaWorld | <picture><img src="./.github/img/disc.png" title="Retail" alt="(Retail)" /></picture> | `winmm.dll` | n/a | <sub><sup>[1]</sup> Latest [v1.01 update](https://taco.cab/files/games/paraworld/paraworld_patch_1_01.zip) is recommended</sub> |
+| Sacrifice | <picture><img src="./.github/img/disc.png" title="Retail" alt="(Retail)" /></picture>&nbsp;<a href="https://www.gog.com/en/game/sacrifice"><img src="./.github/img/gog.png" title="GOG" alt="(GOG)" /></a>&nbsp;<a href="https://store.steampowered.com/app/38440/Sacrifice/"><img src="./.github/img/steam.png" title="Steam" alt="(Steam)" /></a> | `dinput.dll` | n/a |   |
 | Saints Row 2 | <picture><img src="./.github/img/disc.png" title="Retail" alt="(Retail)" /></picture>&nbsp;<a href="https://www.gog.com/en/game/saints_row_2"><img src="./.github/img/gog.png" title="GOG" alt="(GOG)" /></a>&nbsp;<a href="https://store.steampowered.com/app/9480/Saints_Row_2/"><img src="./.github/img/steam.png" title="Steam" alt="(Steam)" /></a> | `dinput8.dll` | n/a |   |
 | Serious Sam: The First Encounter | <picture><img src="./.github/img/disc.png" title="Retail" alt="(Retail)" /></picture>&nbsp;<a href="https://www.gog.com/en/game/serious_sam_the_first_encounter"><img src="./.github/img/gog.png" title="GOG" alt="(GOG)" /></a> | `dsound.dll` | n/a |   |
 | Serious Sam: The Second Encounter | <picture><img src="./.github/img/disc.png" title="Retail" alt="(Retail)" /></picture>&nbsp;<a href="https://www.gog.com/en/game/serious_sam_the_second_encounter"><img src="./.github/img/gog.png" title="GOG" alt="(GOG)" /></a> | `dsound.dll` | n/a |   |

dllmain.c

@@ -45,6 +45,7 @@
   #include "include/game_gt.h"
   #include "include/game_sof2.h"
   #include "include/game_mua.h"
+  #include "include/game_sacrifice.h"
 #endif // !_WIN64
 
 #include "include/picoupnp.h"
@@ -275,6 +276,8 @@ int __stdcall DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID lpReserved) {
           patch_gt();
         } else if (!__stricmp(p, "sof2mp.exe")) { // Soldier of Fortune 2
           patch_sof2();
+        } else if (!__stricmp(p, "sacrifice.exe")) { // Sacrifice
+          patch_sacrifice();
         } 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_sacrifice.h

@@ -0,0 +1,40 @@
+// game_sacrifice.h
+
+#ifndef __GAME_SACRIFICE_H
+#define __GAME_SACRIFICE_H
+
+#include "include/global.h"
+#include "iathook/iathook.h"
+
+int __stdcall hk_bind(SOCKET s, struct sockaddr* addr, int namelen);
+LPHOSTENT __stdcall hk_gethostbyname(const char* name);
+
+HMODULE __stdcall sacrifice_hk_LoadLibraryA(LPCSTR lpLibFileName) {
+  HMODULE mod = 0;
+  const char* name = __strrchr(lpLibFileName, '\\');
+  if (name)
+    name++;
+  else
+    name = lpLibFileName;
+
+  mod = oLoadLibraryA(lpLibFileName);
+  if (mod && (!__stricmp(name, "gamespy.dll"))) {
+    HOOK_FUNC(mod, gethostbyname, hk_gethostbyname, "wsock32.dll", 52, TRUE);
+    HOOK_FUNC(mod, bind, hk_bind, "wsock32.dll", 2, TRUE);
+  }
+
+  return mod;
+}
+
+__forceinline static void sacrifice_hook_gs() {
+  HMODULE mod = GetModuleHandleA("share.dll");
+  if (mod) {
+    HOOK_FUNC(mod, LoadLibraryA, sacrifice_hk_LoadLibraryA, "kernel32.dll", 0, FALSE);
+  }
+}
+
+__noinline static void patch_sacrifice() {
+  sacrifice_hook_gs();
+}
+
+#endif // __GAME_SACRIFICE_H