Merge pull request #1 from Northn/patch-1

povargek · web-flow · commit 1cb8db84c2a8 · 2024-09-15T14:22:11.000+03:00
Plugin::InstallPatchAddHospitalRestartPoint(): Unprotect before patching
diff --git a/src/Plugin.cpp b/src/Plugin.cpp
@@ -95,5 +95,10 @@ void Plugin::AddChatMessage(std::uint32_t dwColor, std::string sFmrMessage, ...)
 */
 void Plugin::InstallPatchAddHospitalRestartPoint()
 {
-    memset(reinterpret_cast<void*>(0x460773), 0x90, 0x7);
+    auto address = reinterpret_cast<void*>(0x460773);
+    auto size = 0x7;
+    DWORD oldProtection = PAGE_EXECUTE_READWRITE;
+    VirtualProtect(address, size, oldProtection, &oldProtection);
+    memset(address, 0x90, size);
+    VirtualProtect(address, size, oldProtection, &oldProtection);
 }

Original file line number	Diff line number	Diff line change
`@@ -95,5 +95,10 @@ void Plugin::AddChatMessage(std::uint32_t dwColor, std::string sFmrMessage, ...)`
`95`	`95`	`*/`
`96`	`96`	`void Plugin::InstallPatchAddHospitalRestartPoint()`
`97`	`97`	`{`
`98`		`- memset(reinterpret_cast<void*>(0x460773), 0x90, 0x7);`
	`98`	`+ auto address = reinterpret_cast<void*>(0x460773);`
	`99`	`+ auto size = 0x7;`
	`100`	`+ DWORD oldProtection = PAGE_EXECUTE_READWRITE;`
	`101`	`+ VirtualProtect(address, size, oldProtection, &oldProtection);`
	`102`	`+ memset(address, 0x90, size);`
	`103`	`+ VirtualProtect(address, size, oldProtection, &oldProtection);`
`99`	`104`	`}`