1 files changed, 128 insertions, 0 deletions
diff --git a/package/source/zippackage/ZipPackageBuffer.cxx b/package/source/zippackage/ZipPackageBuffer.cxx
new file mode 100644
index 0000000000..810daa737a
--- /dev/null
+++ b/package/source/zippackage/ZipPackageBuffer.cxx
@@ -0,0 +1,128 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <ZipPackageBuffer.hxx>
+#include <PackageConstants.hxx>
+#include <string.h>
+#include <sal/log.hxx>
+
+#include <com/sun/star/io/BufferSizeExceededException.hpp>
+#include <com/sun/star/lang/IllegalArgumentException.hpp>
+
+using namespace ::com::sun::star;
+using namespace com::sun::star::uno;
+using namespace com::sun::star::io;
+using com::sun::star::lang::IllegalArgumentException;
+
+#if OSL_DEBUG_LEVEL > 0
+#define THROW_WHERE SAL_WHERE
+#else
+#define THROW_WHERE ""
+#endif
+
+ZipPackageBuffer::ZipPackageBuffer()
+: m_nBufferSize (n_ConstBufferSize)
+, m_nEnd(0)
+, m_nCurrent(0)
+, m_bMustInitBuffer ( true )
+{
+}
+ZipPackageBuffer::~ZipPackageBuffer()
+{
+}
+
+sal_Int32 SAL_CALL ZipPackageBuffer::readBytes( Sequence< sal_Int8 >& aData, sal_Int32 nBytesToRead )
+{
+    if (nBytesToRead < 0)
+        throw BufferSizeExceededException(THROW_WHERE, *this );
+
+    if (nBytesToRead + m_nCurrent > m_nEnd)
+        nBytesToRead = static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
+
+    aData.realloc ( nBytesToRead );
+    memcpy(aData.getArray(), m_aBuffer.getConstArray() + m_nCurrent, nBytesToRead);
+    m_nCurrent +=nBytesToRead;
+    return nBytesToRead;
+}
+
+sal_Int32 SAL_CALL ZipPackageBuffer::readSomeBytes( Sequence< sal_Int8 >& aData, sal_Int32 nMaxBytesToRead )
+{
+    return readBytes(aData, nMaxBytesToRead);
+}
+void SAL_CALL ZipPackageBuffer::skipBytes( sal_Int32 nBytesToSkip )
+{
+    if (nBytesToSkip < 0)
+        throw BufferSizeExceededException(THROW_WHERE, *this );
+
+    if (nBytesToSkip + m_nCurrent > m_nEnd)
+        nBytesToSkip = static_cast < sal_Int32 > (m_nEnd - m_nCurrent);
+
+    m_nCurrent+=nBytesToSkip;
+}
+sal_Int32 SAL_CALL ZipPackageBuffer::available(  )
+{
+    return std::min<sal_Int64>(SAL_MAX_INT32, m_nEnd - m_nCurrent);
+}
+void SAL_CALL ZipPackageBuffer::closeInput(  )
+{
+}
+void SAL_CALL ZipPackageBuffer::writeBytes( const Sequence< sal_Int8 >& aData )
+{
+    sal_Int64 nDataLen = aData.getLength(), nCombined = m_nEnd + nDataLen;
+
+    if ( nCombined > m_nBufferSize)
+    {
+        do
+            m_nBufferSize *=2;
+        while (nCombined > m_nBufferSize);
+        m_aBuffer.realloc(static_cast < sal_Int32 > (m_nBufferSize));
+        m_bMustInitBuffer = false;
+    }
+    else if (m_bMustInitBuffer)
+    {
+        m_aBuffer.realloc ( static_cast < sal_Int32 > ( m_nBufferSize ) );
+        m_bMustInitBuffer = false;
+    }
+    memcpy( m_aBuffer.getArray() + m_nCurrent, aData.getConstArray(), static_cast < sal_Int32 > (nDataLen));
+    m_nCurrent+=nDataLen;
+    if (m_nCurrent>m_nEnd)
+        m_nEnd = m_nCurrent;
+}
+void SAL_CALL ZipPackageBuffer::flush(  )
+{
+}
+void SAL_CALL ZipPackageBuffer::closeOutput(  )
+{
+}
+void SAL_CALL ZipPackageBuffer::seek( sal_Int64 location )
+{
+    if ( location > m_nEnd || location < 0 )
+        throw IllegalArgumentException(THROW_WHERE, uno::Reference< uno::XInterface >(), 1 );
+    m_nCurrent = location;
+}
+sal_Int64 SAL_CALL ZipPackageBuffer::getPosition(  )
+{
+    return m_nCurrent;
+}
+sal_Int64 SAL_CALL ZipPackageBuffer::getLength(  )
+{
+    return m_nEnd;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */