moving custom instructions

2024-03-08 10:31:22 -08:00
parent a6ba81aa0e
commit f70541dcbe
1430 changed files with 852 additions and 1409 deletions
--- a/CustomInstructions/gpts/knowledge/CodeGPT
+++ b/CustomInstructions/gpts/knowledge/CodeGPT
@@ -0,0 +1,38 @@
+#include "hook.h"
+
+bool detour_32(BYTE *src, BYTE *dst, const uintptr_t len)
+{
+    if (len < 5)
+        return false;
+
+    DWORD curProtection;
+    VirtualProtect(src, len, PAGE_EXECUTE_READWRITE, &curProtection);
+
+    memset(src, 0x90, len);
+
+    uintptr_t relativeAddress = dst - src - 5;
+    *src = 0xE9;
+    *(uintptr_t *)(src + 1) = relativeAddress;
+
+    VirtualProtect(src, len, curProtection, &curProtection);
+    return true;
+}
+
+BYTE *trampoline_32(BYTE *src, BYTE *dst, const uintptr_t len)
+{
+    if (len < 5)
+        return 0;
+
+    BYTE *gateway = (BYTE *)VirtualAlloc(0, len, MEM_COMMIT | MEM_RESERVE,
+                                         PAGE_EXECUTE_READWRITE);
+
+    memcpy_s(gateway, len, src, len);
+
+    uintptr_t gatewayRelativeAddr = src - gateway - 5;
+    *(gateway + len) = 0xE9;
+    *(uintptr_t *)((uintptr_t)gateway + len + 1) = gatewayRelativeAddr;
+
+    detour_32(src, dst, len);
+
+    return gateway;
+}