Fully migrate to wrapper DLLs

2026-03-22 17:39:08 +01:00
1 parent a190787f3b
commit 4bfb5b958e
@@ -0,0 +1,86 @@
+#include "common.h"
+#include "kernel32.h"
+
+typedef LPWCH (__cdecl *wcscpyPtr)(LPWCH dest, LPWCH source);
+typedef size_t (__cdecl *wcstombsPtr)(LPSTR dest, LPWCH source, size_t maxCount);
+typedef LONG (WINAPI *RegOpenKeyExWPtr)(HKEY hKey, LPCWSTR lpSubKey, DWORD ulOptions, REGSAM samDesired, PHKEY phkResult);
+typedef LONG (WINAPI *RegQueryValueExWPtr)(HKEY hKey, LPCWSTR lpValueName, LPDWORD lpReserved, LPDWORD lpType, LPBYTE lpData, LPDWORD lpcbData);
+typedef LONG (WINAPI *RegCloseKeyPtr)(HKEY hKey);
+
+DLL_EXPORT WINAPI BOOL GetVersionExW(LPOSVERSIONINFOW version) {
+    if (version->dwOSVersionInfoSize == sizeof(OSVERSIONINFOW)) {
+        version->dwMajorVersion = 4;
+        version->dwMinorVersion = 0;
+        version->dwBuildNumber = 1381;
+        version->dwPlatformId = VER_PLATFORM_WIN32_NT;
+        version->szCSDVersion[0] = L'\0';
+        //wcscpyPtr wcscpy = (wcscpyPtr) getFunction("msvcrt.dll", "wcscpy");
+        //wcscpy(version->szCSDVersion, L"Befator Inc gruesst Sie!");
+
+        RegOpenKeyExWPtr regOpenKeyExW = (RegOpenKeyExWPtr) getFunction("advapi32.dll", "RegOpenKeyExW");
+        RegQueryValueExWPtr regQueryValueExW = (RegQueryValueExWPtr) getFunction("advapi32.dll", "RegQueryValueExW");
+        RegCloseKeyPtr regCloseKey = (RegCloseKeyPtr) getFunction("advapi32.dll", "RegCloseKey");
+        HKEY key;
+        if (regOpenKeyExW(HKEY_LOCAL_MACHINE, L"SOFTWARE\\BCompat", 0, KEY_READ, &key) == ERROR_SUCCESS) {
+            DWORD size;
+            DWORD major = 0;
+            if (regQueryValueExW(key, L"ReportedMajor", NULL, NULL, (LPBYTE) &major, &size) == ERROR_SUCCESS) {
+                version->dwMajorVersion = major;
+            }
+            DWORD minor = 0;
+            if (regQueryValueExW(key, L"ReportedMinor", NULL, NULL, (LPBYTE) &minor, &size) == ERROR_SUCCESS) {
+                version->dwMinorVersion = minor;
+            }
+            DWORD build = 0;
+            if (regQueryValueExW(key, L"ReportedBuild", NULL, NULL, (LPBYTE) &build, &size) == ERROR_SUCCESS) {
+                version->dwBuildNumber = build;
+            }
+            DWORD platform = 0;
+            if (regQueryValueExW(key, L"ReportedPlatform", NULL, NULL, (LPBYTE) &platform, &size) == ERROR_SUCCESS) {
+                version->dwPlatformId = platform;
+            }
+            size = sizeof(version->szCSDVersion);
+            if (regQueryValueExW(key, L"ReportedServicePack", NULL, NULL, (LPBYTE) &version->szCSDVersion, &size) == ERROR_SUCCESS) {
+                version->szCSDVersion[127] = L'\0';
+            }
+            regCloseKey(key);
+        }
+        return TRUE;
+    } else {
+        SetLastError(ERROR_INSUFFICIENT_BUFFER);
+        return FALSE;
+    }
+}
+
+DLL_EXPORT WINAPI BOOL GetVersionExA(LPOSVERSIONINFOA version) {
+    if (version->dwOSVersionInfoSize == sizeof(OSVERSIONINFOA)) {
+        OSVERSIONINFOW versionW;
+        versionW.dwOSVersionInfoSize = sizeof(OSVERSIONINFOW);
+        if (GetVersionExW(&versionW)) {
+            version->dwMajorVersion = versionW.dwMajorVersion;
+            version->dwMinorVersion = versionW.dwMinorVersion;
+            version->dwBuildNumber = versionW.dwBuildNumber;
+            version->dwPlatformId = versionW.dwPlatformId;
+            version->szCSDVersion[0] = '\0';
+            wcstombsPtr wcstombs = (wcstombsPtr) getFunction("msvcrt.dll", "wcstombs");
+            wcstombs(version->szCSDVersion, versionW.szCSDVersion, ARRAYSIZE(version->szCSDVersion));
+            return TRUE;
+        }
+        return FALSE;
+    } else {
+        SetLastError(ERROR_INSUFFICIENT_BUFFER);
+        return FALSE;
+    }
+}
+
+DLL_EXPORT WINAPI DWORD GetVersion() {
+    OSVERSIONINFOW versionW;
+    if (GetVersionExW(&versionW)) {
+        return (versionW.dwPlatformId ^ 2) << 30 |
+                versionW.dwBuildNumber     << 16 |
+                versionW.dwMinorVersion    << 8  |
+                versionW.dwMajorVersion;
+    } else {
+        return -1;
+    }
+}