Bug 234741 installer should refuse to install to a non-empty, non-Mozilla directory

patch by ajschult@mindspring.com r=bsmedberg sr=dveditz a=asa

xpinstall/wizard/unix/src2/nsObjectIgnore.cpp

@@ -0,0 +1,80 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * The contents of this file are subject to the Netscape 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/NPL/
+ *
+ * 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 Communicator client code, 
+ * released March 31, 1998. 
+ *
+ * The Initial Developer of the Original Code is Netscape Communications 
+ * Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ *     Samir Gehani <sgehani@netscape.com>
+ */
+
+#include "nsObjectIgnore.h"
+#include "assert.h"
+
+nsObjectIgnore::nsObjectIgnore() :
+    mFilename(NULL),
+    mNext(NULL)
+{
+}
+
+nsObjectIgnore::~nsObjectIgnore()
+{
+    XI_IF_FREE(mFilename);
+}
+
+int
+nsObjectIgnore::SetFilename(char *aFilename)
+{
+    if (!aFilename)
+        return E_PARAM;
+    
+    mFilename = aFilename;
+
+    return OK;
+}
+
+char *
+nsObjectIgnore::GetFilename()
+{
+    return mFilename;
+}
+
+int
+nsObjectIgnore::SetNext(nsObjectIgnore *aNext)
+{
+    if (!aNext)
+        return E_PARAM;
+
+    mNext = aNext;
+
+    return OK;
+}
+
+nsObjectIgnore *
+nsObjectIgnore::GetNext()
+{
+    return mNext;
+}
+
+int
+nsObjectIgnore::InitNext()
+{
+    XI_ASSERT((mNext==NULL), "Leaking nsObjectIgnore::mNext!\n");
+    mNext = NULL;
+
+    return OK;
+}

xpinstall/wizard/unix/src2/nsObjectIgnore.h

@@ -0,0 +1,48 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/*
+ * The contents of this file are subject to the Netscape 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/NPL/
+ *
+ * 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 Communicator client code, 
+ * released March 31, 1998. 
+ *
+ * The Initial Developer of the Original Code is Netscape Communications 
+ * Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation. All
+ * Rights Reserved.
+ *
+ * Contributor(s): 
+ *     Samir Gehani <sgehani@netscape.com>
+ */
+
+#ifndef _NS_OBJECTIGNORE_H_
+#define _NS_OBJECTIGNORE_H_
+
+#include "XIDefines.h"
+#include "XIErrors.h"
+
+class nsObjectIgnore
+{
+public:
+    nsObjectIgnore();
+    ~nsObjectIgnore();
+
+    int             SetFilename(char *aFilename);
+    char            *GetFilename();
+    int             SetNext(nsObjectIgnore *aNext);
+    nsObjectIgnore  *GetNext();
+    int             InitNext();
+
+private:
+    char            *mFilename;
+    nsObjectIgnore  *mNext;
+};
+
+#endif /* _NS_OBJECTIGNORE_H_ */