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diff --git a/mozilla/nsprpub/pr/src/cplus/rcnetdb.h b/mozilla/nsprpub/pr/src/cplus/rcnetdb.h
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+++ b/mozilla/nsprpub/pr/src/cplus/rcnetdb.h
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+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* ***** 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 the Netscape Portable Runtime (NSPR).
+ *
+ * The Initial Developer of the Original Code is
+ * Netscape Communications Corporation.
+ * Portions created by the Initial Developer are Copyright (C) 1998-2000
+ * the Initial Developer. All Rights Reserved.
+ *
+ * Contributor(s):
+ *
+ * Alternatively, the contents of this file may be used under the terms of
+ * either 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 ***** */
+
+/*
+** Base class definitions for network access functions (ref: prnetdb.h)
+*/
+
+#if defined(_RCNETDB_H)
+#else
+#define _RCNETDB_H
+
+#include "rclock.h"
+#include "rcbase.h"
+
+#include <prnetdb.h>
+
+class PR_IMPLEMENT(RCNetAddr): public RCBase
+{
+public:
+    typedef enum {
+        any = PR_IpAddrAny,             /* assign logical INADDR_ANY */
+        loopback = PR_IpAddrLoopback    /* assign logical INADDR_LOOPBACK */
+    } HostValue;
+
+    RCNetAddr();                        /* default constructor is unit'd object */
+    RCNetAddr(const RCNetAddr&);        /* copy constructor */
+    RCNetAddr(HostValue, PRUint16 port);/* init'd w/ 'special' assignments */
+    RCNetAddr(const RCNetAddr&, PRUint16 port);
+                                        /* copy w/ port reassigment */
+
+    virtual ~RCNetAddr();
+
+    void operator=(const RCNetAddr&);
+
+    virtual PRBool operator==(const RCNetAddr&) const;
+                                        /* compare of all relavent fields */
+    virtual PRBool EqualHost(const RCNetAddr&) const;
+                                        /* compare of just host field */
+
+
+public:
+
+    void operator=(const PRNetAddr*);   /* construction from more primitive data */
+    operator const PRNetAddr*() const;  /* extraction of underlying representation */
+    virtual PRStatus FromString(const char* string);
+                                        /* initialization from an ASCII string */
+    virtual PRStatus ToString(char *string, PRSize size) const;
+                                        /* convert internal fromat to a string */
+
+private:
+
+    PRNetAddr address;
+
+};  /* RCNetAddr */
+
+/*
+** Class: RCHostLookup
+**
+** Abstractions to look up host names and addresses.
+**
+** This is a stateful class. One looks up the host by name or by
+** address, then enumerates over a possibly empty array of network
+** addresses. The storage for the addresses is owned by the class.
+*/
+
+class RCHostLookup: public RCBase
+{
+public:
+    virtual ~RCHostLookup();
+
+    RCHostLookup();
+
+    virtual PRStatus ByName(const char* name);
+    virtual PRStatus ByAddress(const RCNetAddr&);
+
+    virtual const RCNetAddr* operator[](PRUintn);
+
+private:
+    RCLock ml;
+    PRIntn max_index;
+    RCNetAddr* address;
+
+    RCHostLookup(const RCHostLookup&);
+    RCHostLookup& operator=(const RCHostLookup&);
+};
+
+inline RCNetAddr::RCNetAddr(): RCBase() { }
+inline RCNetAddr::operator const PRNetAddr*() const { return &address; }
+
+
+#endif /* defined(_RCNETDB_H) */
+
+/* RCNetdb.h */
+
+