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Bounds check for blip creation functions - III

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Silent 2016-06-08 22:12:04 +02:00
parent e96bd3e91c
commit 3d19aa4fbd
1 changed files with 53 additions and 0 deletions
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53
SilentPatchIII/SilentPatchIII.cpp
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@ -234,6 +234,44 @@ void __declspec(naked) III_SensResetFix()
}
}
static void* RadarBoundsCheckCoordBlip_JumpBack = AddressByVersion<void*>(0x4A55B8, 0x4A56A8, 0x4A5638);
static void* RadarBoundsCheckCoordBlip_Count = AddressByVersion<void*>(0x4A55AF, 0x4A569F, 0x4A562F);
void __declspec(naked) RadarBoundsCheckCoordBlip()
{
_asm
{
mov edx, dword ptr [RadarBoundsCheckCoordBlip_Count]
cmp cl, byte ptr [edx]
jnb OutOfBounds
mov edx, ecx
mov eax, [esp+4]
jmp RadarBoundsCheckCoordBlip_JumpBack
OutOfBounds:
or eax, -1
fcompp
retn
}
}
static void* RadarBoundsCheckEntityBlip_JumpBack = AddressByVersion<void*>(0x4A565E, 0x4A574E, 0x4A56DE);
void __declspec(naked) RadarBoundsCheckEntityBlip()
{
_asm
{
mov edx, dword ptr [RadarBoundsCheckCoordBlip_Count]
cmp cl, byte ptr [edx]
jnb OutOfBounds
mov edx, ecx
mov eax, [esp+4]
jmp RadarBoundsCheckEntityBlip_JumpBack
OutOfBounds:
or eax, -1
retn
}
}
char** const ppUserFilesDir = AddressByVersion<char**>(0x580C16, 0x580F66, 0x580E66);
char* GetMyDocumentsPath()
@ -435,6 +473,11 @@ void Patch_III_10(const RECT& desktop)
Patch<BYTE>(0x421E0E, 0xC3);
// Radar blips bounds check
InjectHook(0x4A55B2, RadarBoundsCheckCoordBlip, PATCH_JUMP);
InjectHook(0x4A5658, RadarBoundsCheckEntityBlip, PATCH_JUMP);
// Adblocker
#if DISABLE_FLA_DONATION_WINDOW
@ -592,6 +635,11 @@ void Patch_III_11(const RECT& desktop)
Patch<WORD>(0x421E07, 0x05C6);
Patch<const void*>(0x421E09, pFreeResprays);
Patch<BYTE>(0x421E0E, 0xC3);
// Radar blips bounds check
InjectHook(0x4A56A2, RadarBoundsCheckCoordBlip, PATCH_JUMP);
InjectHook(0x4A5748, RadarBoundsCheckEntityBlip, PATCH_JUMP);
}
void Patch_III_Steam(const RECT& desktop)
@ -736,6 +784,11 @@ void Patch_III_Steam(const RECT& desktop)
Patch<WORD>(0x421E07, 0x05C6);
Patch<const void*>(0x421E09, pFreeResprays);
Patch<BYTE>(0x421E0E, 0xC3);
// Radar blips bounds check
InjectHook(0x4A5632, RadarBoundsCheckCoordBlip, PATCH_JUMP);
InjectHook(0x4A56D8, RadarBoundsCheckEntityBlip, PATCH_JUMP);
}
BOOL WINAPI DllMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved)