OS: add support for Windows

CMakeLists.txt

@@ -318,6 +318,7 @@ if(WIN_MSYS)
         src/detection/wmtheme/wmtheme_windows.c
         src/detection/opengl/opengl_windows.c
         src/detection/users/users_windows.cpp
+        src/detection/os/os_windows.cpp
         src/util/windows/wmi.cpp
 
         # Shared
@@ -325,7 +326,6 @@ if(WIN_MSYS)
         src/detection/poweradapter/poweradapter_linux.c
 
         # TODO
-        src/detection/os/os_linux.c
         src/detection/media/media_linux.c
         src/detection/font/font_linux.c
         src/detection/cpu/cpu_linux.c

src/detection/os/os_windows.cpp

@@ -0,0 +1,72 @@
+extern "C" {
+#include "os.h"
+}
+#include "util/windows/wmi.hpp"
+
+extern "C"
+void ffDetectOSImpl(FFOSResult* os, const FFinstance* instance)
+{
+    ffStrbufInit(&os->name);
+    ffStrbufInit(&os->prettyName);
+    ffStrbufInit(&os->id);
+    ffStrbufInit(&os->idLike);
+    ffStrbufInit(&os->variant);
+    ffStrbufInit(&os->variantID);
+    ffStrbufInit(&os->version);
+    ffStrbufInit(&os->versionID);
+    ffStrbufInit(&os->codename);
+    ffStrbufInit(&os->buildID);
+    ffStrbufInit(&os->systemName);
+    ffStrbufInit(&os->architecture);
+
+    IEnumWbemClassObject* pEnumerator = ffQueryWmi(L"SELECT Caption, Version, BuildNumber, OSArchitecture FROM Win32_OperatingSystem", nullptr);
+
+    if(!pEnumerator)
+        return;
+
+    IWbemClassObject *pclsObj = NULL;
+    ULONG uReturn = 0;
+
+    if(FAILED(pEnumerator->Next(WBEM_INFINITE, 1, &pclsObj, &uReturn)) || uReturn == 0)
+    {
+        pEnumerator->Release();
+        return;
+    }
+
+    ffGetWmiObjValue(pclsObj, L"Caption", &os->variant); // Microsoft Windows 11 家庭中文版
+    if(ffStrbufStartsWithS(&os->variant, "Microsoft Windows "))
+    {
+        ffStrbufAppendS(&os->name, "Microsoft Windows");
+        ffStrbufAppendS(&os->prettyName, "Windows");
+
+        ffStrbufSubstrAfter(&os->variant, strlen("Microsoft Windows ") - 1); // 11 家庭中文版
+        uint32_t index = ffStrbufFirstIndexC(&os->variant, ' ');
+        ffStrbufAppendNS(&os->version, index, os->variant.chars);
+        ffStrbufSubstrAfter(&os->variant, index);
+    }
+    else
+    {
+        // Unknown Windows name, please report this
+        ffStrbufAppend(&os->name, &os->variant);
+        ffStrbufClear(&os->variant);
+    }
+
+    #ifdef __CYGWIN__
+        ffStrbufAppendS(&os->id, "MSYS2");
+    #else
+        // Enable this after we have Windows logo support
+        ffStrbufAppendF(&os->id, "Windows %*s", &os->version.length, &os->version.chars);
+    #endif
+
+    ffGetWmiObjValue(pclsObj, L"BuildNumber", &os->buildID);
+    ffGetWmiObjValue(pclsObj, L"OSArchitecture", &os->architecture);
+
+    #ifdef __CYGWIN__
+        ffStrbufSetS(&os->systemName, instance->state.utsname.sysname);
+    #else
+        ffStrbufSetS(&os->systemName, "Windows");
+    #endif
+
+    pclsObj->Release();
+    pEnumerator->Release();
+}