From 354cef3a9c4e020aef9afeee12f846e4554ec7b7 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@fakecake.org>
Date: Fri, 19 Oct 2012 10:53:02 +0400
Subject: add rarlib stuff

---
 src/org/catacombae/rarx/MarkHeader.java | 48 +++++++++++++++++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 src/org/catacombae/rarx/MarkHeader.java

(limited to 'src/org/catacombae/rarx/MarkHeader.java')

diff --git a/src/org/catacombae/rarx/MarkHeader.java b/src/org/catacombae/rarx/MarkHeader.java
new file mode 100644
index 0000000..76c17ef
--- /dev/null
+++ b/src/org/catacombae/rarx/MarkHeader.java
@@ -0,0 +1,48 @@
+/*-
+ * Copyright (C) 2006 Erik Larsson
+ * 
+ * All rights reserved.
+ * 
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+package org.catacombae.rarx;
+
+public class MarkHeader extends RARHeader {
+    private static final byte[] oldRarHeader = { 0x52, 0x45, 0x7e, 0x5e };
+    private static final byte[] rar2Header =   { 0x52, 0x61, 0x72, 0x21, 0x1a, 0x07, 0x00 };
+    private static final byte[] uniqueHeader = { 0x55, 0x6e, 0x69, 0x71, 0x75, 0x45, 0x21 }; // "UniquE!" in ASCII
+		
+    public MarkHeader(byte[] data, int offset) {
+	super(data, offset);
+	validateData();
+    }
+	
+    protected void validateData() {
+	byte[] mark = getHeaderData();
+	if(Util.arraysEqual(Util.createCopy(mark, 0, 4), oldRarHeader)) {
+	    throw new InvalidDataException("An older, unsupported RAR format was detected.");
+	}
+	else {
+	    /* original RAR v2.0                                                  */
+	    if(Util.arraysEqual(mark, rar2Header) ||
+	       Util.arraysEqual(mark, uniqueHeader)) {
+		    
+	    }
+	    else
+		throw new InvalidDataException("Not a RAR file."); 
+	}	    
+    }
+}
-- 
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