1 files changed, 29 insertions, 0 deletions
diff --git a/src/lombok/installer/WindowsDriveInfo.java b/src/lombok/installer/WindowsDriveInfo.java
new file mode 100644
index 00000000..4689e535
--- /dev/null
+++ b/src/lombok/installer/WindowsDriveInfo.java
@@ -0,0 +1,29 @@
+package lombok.installer;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class WindowsDriveInfo {
+	public List<String> getLogicalDrives() {
+		int flags = getLogicalDrives0();
+		flags = (flags & 0xFF) << 24 |
+				((flags >> 8) & 0xFF) << 16 |
+				((flags >> 16) & 0xFF) << 8 |
+				(flags >> 24) & 0xFF;
+		
+		List<String> letters = new ArrayList<String>();
+		for ( int i = 0 ; i < 26 ; i++ ) {
+			if ( (flags & (1 << i)) != 0 ) letters.add(Character.toString((char)('A' + i)));
+		}
+		
+		return letters;
+	}
+	
+	private native int getLogicalDrives0();
+	
+	public boolean isFixedDisk(String letter) {
+		return getDriveType(letter.toUpperCase() + ":\\") == 3L;
+	}
+	
+	private native int getDriveType(String name);
+}