--- gvpe/src/sockinfo.h	2003/03/28 04:05:10	1.1
+++ gvpe/src/sockinfo.h	2008/08/07 17:54:27	1.15
@@ -1,69 +1,86 @@
 /*
     sockinfo.h -- socket address management
-    Copyright (C) 1998-2002 Ivo Timmermans <ivo@o2w.nl>
-                  2000-2002 Guus Sliepen <guus@sliepen.eu.org>
-                  2003      Marc Lehmannn <pcg@goof.com>
+    Copyright (C) 2003-2008 Marc Lehmann <gvpe@schmorp.de>
  
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
- 
-    This program 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 General Public License for more details.
- 
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc. 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+    This file is part of GVPE.
+
+    GVPE is free software; you can redistribute it and/or modify it
+    under the terms of the GNU General Public License as published by the
+    Free Software Foundation; either version 3 of the License, or (at your
+    option) any later version.
+   
+    This program 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 General
+    Public License for more details.
+   
+    You should have received a copy of the GNU General Public License along
+    with this program; if not, see <http://www.gnu.org/licenses/>.
+   
+    Additional permission under GNU GPL version 3 section 7
+   
+    If you modify this Program, or any covered work, by linking or
+    combining it with the OpenSSL project's OpenSSL library (or a modified
+    version of that library), containing parts covered by the terms of the
+    OpenSSL or SSLeay licenses, the licensors of this Program grant you
+    additional permission to convey the resulting work.  Corresponding
+    Source for a non-source form of such a combination shall include the
+    source code for the parts of OpenSSL used as well as that of the
+    covered work.
 */
 
-#ifndef SOCKINFO_H__
-#define SOCKINFO_H__
+#ifndef GVPE_SOCKINFO_H__
+#define GVPE_SOCKINFO_H__
 
-#include <sys/socket.h>
-#include <netinet/in.h>
+#include "netcompat.h"
 
 #include "conf.h"
 
 // encapsulate one or more network addresses. this structure
 // gets transferred over the wire, so be careful with endianness etc.
 struct sockinfo
+{
+  u32 host;
+  u16 port;
+  u8 prot;
+  u8 pad1;
+
+  void set (const sockaddr_in *sa, u8 prot_);
+  void set (const conf_node *conf, u8 prot_);
+  void set (const char *hostname, u16 port_, u8 prot_);
+
+  // return the supported protocols
+  u8 supported_protocols (conf_node *conf = 0);
+  bool upgrade_protocol (u8 prot_, conf_node *conf = 0);
+
+  operator const char *() const;
+
+  const sockaddr *sav4 () const;
+  const socklen_t salenv4 () const
   {
-    u32 host;
-    u16 port;
-    u8 prot;
-    u8 pad1;
-
-    void set (const sockaddr_in *sa, u8 prot_ = PROT_UDPv4);
-    void set (const conf_node *conf);
-
-    operator const char *() const;
-
-    const sockaddr *sav4 () const;
-    const socklen_t salenv4 () const
-      {
-        return sizeof (sockaddr_in);
-      }
-
-    const char *ntoa () const;
-
-    sockinfo()
-      {
-        prot = 0;
-      }
-
-    sockinfo(const sockaddr_in &sa, u8 prot_ = PROT_UDPv4)
-      {
-        set (&sa, prot_);
-      }
-  };
+    return sizeof (sockaddr_in);
+  }
+
+  const char *ntoa () const;
+
+  bool valid () const
+  {
+    return prot != 0 && host != 0;
+  }
+
+  sockinfo() { prot = 0; }
+
+  sockinfo(const char *hostname, u16 port, u8 prot) { set (hostname, port, prot); }
+  sockinfo(const sockaddr_in &sa, u8 prot)          { set (&sa, prot);            }
+  sockinfo(const conf_node *conf, u8 prot)          { set (conf, prot);           }
+};
+
+bool operator == (const sockinfo &a, const sockinfo &b);
+bool operator <  (const sockinfo &a, const sockinfo &b);
 
-inline bool
-operator == (const sockinfo &a, const sockinfo &b)
+inline bool operator != (const sockinfo &a, const sockinfo &b)
 {
-  return a.host == b.host && a.port == b.port && a.prot == b.prot;
+  return !(a == b);
 }
 
 #endif