Fix/MidHook 32-bit ESP correction (#49)

cursey · Dec 23, 2023 · d1aae26 · d1aae26
1 parent 56f7886
commit d1aae26
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/src/mid_hook.cpp b/src/mid_hook.cpp
@@ -36,7 +36,7 @@ constexpr std::array<uint8_t, 171> asm_data = {0xFF, 0x35, 0xA7, 0x00, 0x00, 0x0
     0x52, 0x56, 0x57, 0x9C, 0x81, 0xEC, 0x80, 0x00, 0x00, 0x00, 0xF3, 0x0F, 0x7F, 0x7C, 0x24, 0x90, 0xF3, 0x0F, 0x7F,
     0x74, 0x24, 0xA0, 0xF3, 0x0F, 0x7F, 0x6C, 0x24, 0xB0, 0xF3, 0x0F, 0x7F, 0x64, 0x24, 0xC0, 0xF3, 0x0F, 0x7F, 0x5C,
     0x24, 0xD0, 0xF3, 0x0F, 0x7F, 0x54, 0x24, 0xE0, 0xF3, 0x0F, 0x7F, 0x4C, 0x24, 0xF0, 0xF3, 0x0F, 0x7F, 0x04, 0x24,
-    0x8B, 0x8C, 0x24, 0xC0, 0x00, 0x00, 0x00, 0x83, 0xC1, 0x08, 0x89, 0x8C, 0x24, 0xC0, 0x00, 0x00, 0x00, 0x54, 0xFF,
+    0x8B, 0x8C, 0x24, 0xA0, 0x00, 0x00, 0x00, 0x83, 0xC1, 0x08, 0x89, 0x8C, 0x24, 0xA0, 0x00, 0x00, 0x00, 0x54, 0xFF,
     0x15, 0xA3, 0x00, 0x00, 0x00, 0x83, 0xC4, 0x04, 0xF3, 0x0F, 0x6F, 0x04, 0x24, 0xF3, 0x0F, 0x6F, 0x4C, 0x24, 0x10,
     0xF3, 0x0F, 0x6F, 0x54, 0x24, 0x20, 0xF3, 0x0F, 0x6F, 0x5C, 0x24, 0x30, 0xF3, 0x0F, 0x6F, 0x64, 0x24, 0x40, 0xF3,
     0x0F, 0x6F, 0x6C, 0x24, 0x50, 0xF3, 0x0F, 0x6F, 0x74, 0x24, 0x60, 0xF3, 0x0F, 0x6F, 0x7C, 0x24, 0x70, 0x81, 0xC4,

diff --git a/src/mid_hook.x86.asm b/src/mid_hook.x86.asm
@@ -23,9 +23,9 @@ movdqu [esp-16], xmm1
 movdqu [esp], xmm0
 
 ; fix stored esp.
-mov ecx, [esp+192]
+mov ecx, [esp+160]
 add ecx, 8
-mov [esp+192], ecx
+mov [esp+160], ecx
 
 ; call destination
 push esp