From db4e8a77ce6ad9a7f742574a6c01121675bd8c9c Mon Sep 17 00:00:00 2001
From: Martin Gallwey <mtg@openoffice.org>
Date: Mon, 13 Nov 2000 12:38:03 +0000
Subject: Initial Revision :D

---
 package/source/zipapi/CRC32.cxx | 110 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 110 insertions(+)
 create mode 100644 package/source/zipapi/CRC32.cxx

(limited to 'package/source/zipapi/CRC32.cxx')

diff --git a/package/source/zipapi/CRC32.cxx b/package/source/zipapi/CRC32.cxx
new file mode 100644
index 000000000000..bca9154af66f
--- /dev/null
+++ b/package/source/zipapi/CRC32.cxx
@@ -0,0 +1,110 @@
+/*************************************************************************
+ *
+ *  $RCSfile: CRC32.cxx,v $
+ *
+ *  $Revision: 1.1 $
+ *
+ *  last change: $Author: mtg $ $Date: 2000-11-13 13:38:01 $
+ *
+ *  The Contents of this file are made available subject to the terms of
+ *  either of the following licenses
+ *
+ *         - GNU Lesser General Public License Version 2.1
+ *         - Sun Industry Standards Source License Version 1.1
+ *
+ *  Sun Microsystems Inc., October, 2000
+ *
+ *  GNU Lesser General Public License Version 2.1
+ *  =============================================
+ *  Copyright 2000 by Sun Microsystems, Inc.
+ *  901 San Antonio Road, Palo Alto, CA 94303, USA
+ *
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Lesser General Public
+ *  License version 2.1, as published by the Free Software Foundation.
+ *
+ *  This library 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
+ *  Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public
+ *  License along with this library; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ *  MA  02111-1307  USA
+ *
+ *
+ *  Sun Industry Standards Source License Version 1.1
+ *  =================================================
+ *  The contents of this file are subject to the Sun Industry Standards
+ *  Source License Version 1.1 (the "License"); You may not use this file
+ *  except in compliance with the License. You may obtain a copy of the
+ *  License at http://www.openoffice.org/license.html.
+ *
+ *  Software provided under this License is provided on an "AS IS" basis,
+ *  WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
+ *  WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
+ *  MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
+ *  See the License for the specific provisions governing your rights and
+ *  obligations concerning the Software.
+ *
+ *  The Initial Developer of the Original Code is: Sun Microsystems, Inc.
+ *
+ *  Copyright: 2000 by Sun Microsystems, Inc.
+ *
+ *  All Rights Reserved.
+ *
+ *  Contributor(s): _______________________________________
+ *
+ *
+ ************************************************************************/
+#ifndef _CRC32_HXX
+#include "CRC32.hxx"
+#endif
+
+using namespace rtl;
+using namespace com::sun::star;
+
+/** A class to compute the CRC32 value of a data stream
+ */
+
+CRC32::CRC32()
+: nCRC(0)
+{
+}
+CRC32::~CRC32()
+{
+}
+void CRC32::reset()
+{
+    nCRC=0;
+}
+sal_Int32 CRC32::getValue()
+{
+    return (sal_Int32) nCRC & 0xFFFFFFFFL;
+}
+/** Update CRC32 with specified byte
+ */
+void SAL_CALL CRC32::updateByte (sal_Int8 nByte)
+        throw(uno::RuntimeException)
+{
+    sal_uInt8 pBuf[1];
+    pBuf[0] = (sal_uInt8)nByte;
+    nCRC  = crc32(nCRC, pBuf, 1);
+}
+/** Update CRC32 with specified sequence of bytes
+ */
+void SAL_CALL CRC32::updateSegment(const uno::Sequence< sal_Int8 > &b,
+                                    sal_Int32 off,
+                                    sal_Int32 len)
+        throw(uno::RuntimeException)
+{
+    nCRC = crc32(nCRC, (const unsigned char*)b.getConstArray()+off, len );
+}
+/** Update CRC32 with specified sequence of bytes
+ */
+void SAL_CALL CRC32::update(const uno::Sequence< sal_Int8 > &b)
+        throw(uno::RuntimeException)
+{
+    nCRC = crc32(nCRC, (const unsigned char*)b.getConstArray(),b.getLength());
+}
-- 
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