1 files changed, 162 insertions, 0 deletions
diff --git a/package/source/zipapi/Inflater.cxx b/package/source/zipapi/Inflater.cxx
new file mode 100644
index 000000000000..e95809a35dad
--- /dev/null
+++ b/package/source/zipapi/Inflater.cxx
@@ -0,0 +1,162 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_package.hxx"
+#include <Inflater.hxx>
+#ifndef _ZLIB_H
+#ifdef SYSTEM_ZLIB
+#include <zlib.h>
+#else
+#include <external/zlib/zlib.h>
+#endif
+#endif
+#include <string.h> // for memset
+
+using namespace com::sun::star::uno;
+
+/** Provides general purpose decompression using the ZLIB library */
+
+Inflater::Inflater(sal_Bool bNoWrap)
+: bFinished(sal_False),
+  bSetParams(sal_False),
+  bNeedDict(sal_False),
+  nOffset(0),
+  nLength(0),
+  nLastInflateError(0),
+  pStream(NULL)
+{
+    pStream = new z_stream;
+    /* memset to 0 to set zalloc/opaque etc */
+    memset (pStream, 0, sizeof(*pStream));
+    sal_Int32 nRes;
+    nRes = inflateInit2(pStream, bNoWrap ? -MAX_WBITS : MAX_WBITS);
+    switch (nRes)
+    {
+        case Z_OK:
+            break;
+        case Z_MEM_ERROR:
+            delete pStream;
+            break;
+        case Z_STREAM_ERROR:
+            delete pStream;
+            break;
+        default:
+            break;
+    }
+}
+
+Inflater::~Inflater()
+{
+    end();
+}
+
+void SAL_CALL Inflater::setInput( const Sequence< sal_Int8 >& rBuffer )
+{
+    sInBuffer = rBuffer;
+    nOffset = 0;
+    nLength = rBuffer.getLength();
+}
+
+sal_Bool SAL_CALL Inflater::needsDictionary(  )
+{
+    return bNeedDict;
+}
+
+sal_Bool SAL_CALL Inflater::finished(  )
+{
+    return bFinished;
+}
+
+sal_Int32 SAL_CALL Inflater::doInflateSegment( Sequence< sal_Int8 >& rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength )
+{
+    if (nNewOffset < 0 || nNewLength < 0 || nNewOffset + nNewLength > rBuffer.getLength())
+    {
+        // do error handling
+    }
+    return doInflateBytes(rBuffer, nNewOffset, nNewLength);
+}
+
+void SAL_CALL Inflater::end(  )
+{
+    if (pStream != NULL)
+    {
+#ifdef SYSTEM_ZLIB
+        inflateEnd(pStream);
+#else
+        z_inflateEnd(pStream);
+#endif
+        delete pStream;
+    }
+    pStream = NULL;
+}
+
+sal_Int32 Inflater::doInflateBytes (Sequence < sal_Int8 >  &rBuffer, sal_Int32 nNewOffset, sal_Int32 nNewLength)
+{
+    if ( !pStream )
+    {
+        nLastInflateError = Z_STREAM_ERROR;
+        return 0;
+    }
+
+    nLastInflateError = 0;
+
+    pStream->next_in   = ( unsigned char* ) ( sInBuffer.getConstArray() + nOffset );
+    pStream->avail_in  = nLength;
+    pStream->next_out  = reinterpret_cast < unsigned char* > ( rBuffer.getArray() + nNewOffset );
+    pStream->avail_out = nNewLength;
+
+#ifdef SYSTEM_ZLIB
+    sal_Int32 nResult = ::inflate(pStream, Z_PARTIAL_FLUSH);
+#else
+    sal_Int32 nResult = ::z_inflate(pStream, Z_PARTIAL_FLUSH);
+#endif
+
+    switch (nResult)
+    {
+        case Z_STREAM_END:
+            bFinished = sal_True;
+        case Z_OK:
+            nOffset += nLength - pStream->avail_in;
+            nLength = pStream->avail_in;
+            return nNewLength - pStream->avail_out;
+
+        case Z_NEED_DICT:
+            bNeedDict = sal_True;
+            nOffset += nLength - pStream->avail_in;
+            nLength = pStream->avail_in;
+            return 0;
+
+        default:
+            // it is no error, if there is no input or no output
+            if ( nLength && nNewLength )
+                nLastInflateError = nResult;
+    }
+
+    return 0;
+}
+