Refine WireGuard client routing and authentication UI

client/tunnel-go/record_windows.go

@@ -0,0 +1,32 @@
+//go:build windows
+
+package main
+
+import (
+	"os"
+	"syscall"
+
+	"golang.org/x/sys/windows"
+)
+
+func openRecord(path string) (*os.File, error) {
+	name, err := windows.UTF16PtrFromString(path)
+	if err != nil {
+		return nil, err
+	}
+	handle, err := windows.CreateFile(name, windows.GENERIC_READ, windows.FILE_SHARE_READ,
+		nil, windows.OPEN_EXISTING, windows.FILE_FLAG_OPEN_REPARSE_POINT, 0)
+	if err != nil {
+		return nil, err
+	}
+	var data windows.ByHandleFileInformation
+	if err := windows.GetFileInformationByHandle(handle, &data); err != nil {
+		windows.CloseHandle(handle)
+		return nil, err
+	}
+	if data.FileAttributes&windows.FILE_ATTRIBUTE_REPARSE_POINT != 0 {
+		windows.CloseHandle(handle)
+		return nil, syscall.EINVAL
+	}
+	return os.NewFile(uintptr(handle), path), nil
+}