1 files changed, 113 insertions, 0 deletions
diff --git a/src/libs/xpcom18a4/xpcom/reflect/xptinfo/src/xptiZipLoader.cpp b/src/libs/xpcom18a4/xpcom/reflect/xptinfo/src/xptiZipLoader.cpp
new file mode 100644
index 00000000..caba49d5
--- /dev/null
+++ b/src/libs/xpcom18a4/xpcom/reflect/xptinfo/src/xptiZipLoader.cpp
@@ -0,0 +1,113 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/* ***** BEGIN LICENSE BLOCK *****
+ * Version: MPL 1.1/GPL 2.0/LGPL 2.1
+ *
+ * The contents of this file are subject to the Mozilla Public 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.mozilla.org/MPL/
+ *
+ * Software distributed under the License is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
+ * for the specific language governing rights and limitations under the
+ * License.
+ *
+ * The Original Code is mozilla.org code.
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1999
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *   Mike McCabe <mccabe@netscape.com>
+ *   John Bandhauer <jband@netscape.com>
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either of the GNU General Public License Version 2 or later (the "GPL"),
+ * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
+ * in which case the provisions of the GPL or the LGPL are applicable instead
+ * of those above. If you wish to allow use of your version of this file only
+ * under the terms of either the GPL or the LGPL, and not to allow others to
+ * use your version of this file under the terms of the MPL, indicate your
+ * decision by deleting the provisions above and replace them with the notice
+ * and other provisions required by the GPL or the LGPL. If you do not delete
+ * the provisions above, a recipient may use your version of this file under
+ * the terms of any one of the MPL, the GPL or the LGPL.
+ *
+ * ***** END LICENSE BLOCK ***** */
+
+/* Implementation of xptiZipLoader. */
+
+#include "xptiprivate.h"
+
+XPTHeader*
+xptiZipLoader::ReadXPTFileFromInputStream(nsIInputStream *stream,
+                                          xptiWorkingSet* aWorkingSet)
+{
+    XPTCursor cursor;
+    PRUint32 totalRead = 0;
+    XPTState *state = nsnull;
+    XPTHeader *header = nsnull;
+
+    PRUint32 flen;
+    stream->Available(&flen);
+    
+    char *whole = new char[flen];
+    if (!whole)
+    {
+        return nsnull;
+    }
+
+    // all exits from on here should be via 'goto out' 
+
+    while(flen - totalRead)
+    {
+        PRUint32 avail;
+        PRUint32 read;
+
+        if(NS_FAILED(stream->Available(&avail)))
+        {
+            goto out;
+        }
+
+        if(avail > flen)
+        {
+            goto out;
+        }
+
+        if(NS_FAILED(stream->Read(whole+totalRead, avail, &read)))
+        {
+            goto out;
+        }
+
+        totalRead += read;
+    }
+    
+    // Go ahead and close the stream now.
+    stream = nsnull;
+
+    if(!(state = XPT_NewXDRState(XPT_DECODE, whole, flen)))
+    {
+        goto out;
+    }
+    
+    if(!XPT_MakeCursor(state, XPT_HEADER, 0, &cursor))
+    {
+        goto out;
+    }
+    
+    if (!XPT_DoHeader(aWorkingSet->GetStructArena(), &cursor, &header))
+    {
+        header = nsnull;
+        goto out;
+    }
+
+ out:
+    if(state)
+        XPT_DestroyXDRState(state);
+    if(whole)
+        delete [] whole;
+    return header;
+}
+