--- gvpe/src/sockinfo.C	2003/04/05 18:03:20	1.6
+++ gvpe/src/sockinfo.C	2005/03/01 06:27:20	1.13
@@ -1,5 +1,6 @@
 /*
     sockinfo.C -- socket address management
+    Copyright (C) 2003 Marc Lehmann <pcg@goof.com>
     
     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
@@ -18,7 +19,6 @@
 
 #include "config.h"
 
-#include <arpa/inet.h>
 #include <netdb.h>
 
 #include "gettext.h"
@@ -26,38 +26,49 @@
 #include "sockinfo.h"
 #include "slog.h"
 
+// all ipv4-based protocols
+#define PROTv4 (PROT_UDPv4 | PROT_TCPv4 | PROT_ICMPv4 | PROT_IPv4 | PROT_DNSv4)
+
 void sockinfo::set (const sockaddr_in *sa, u8 prot_)
 {
   host = sa->sin_addr.s_addr;
-  port = prot_ == PROT_IPv4 ? 0 : sa->sin_port;
+  port = prot_ & (PROT_IPv4 | PROT_ICMPv4) ? 0 : sa->sin_port;
   prot = prot_;
 }
 
-void
-sockinfo::set (const conf_node *conf, u8 prot_)
+void sockinfo::set (const char *hostname, u16 port_, u8 prot_)
 {
   prot = prot_;
   host = 0;
-  port = prot == PROT_UDPv4 ? htons (conf->udp_port)
-       : prot == PROT_TCPv4 ? htons (conf->tcp_port)
-       : 0;
+  port = htons (port_);
 
-  if (prot && conf->hostname)
+  if (prot & PROTv4
+      && hostname)
     {
-      struct hostent *he = gethostbyname (conf->hostname);
+      struct hostent *he = gethostbyname (hostname);
 
       if (he
           && he->h_addrtype == AF_INET && he->h_length == 4 && he->h_addr_list[0])
         {
           //sa->sin_family = he->h_addrtype;
           memcpy (&host, he->h_addr_list[0], 4);
-
         }
       else
-        slog (L_NOTICE, _("unable to resolve host '%s'"), conf->hostname);
+        slog (L_NOTICE, _("unable to resolve host '%s'"), hostname);
     }
 }
 
+void
+sockinfo::set (const conf_node *conf, u8 prot_)
+{
+  set (prot_ == PROT_DNSv4 ? ::conf.dns_forw_host
+                           : conf->hostname,
+       prot_ == PROT_UDPv4   ? conf->udp_port
+       : prot_ == PROT_TCPv4 ? conf->tcp_port
+       : prot_ == PROT_DNSv4 ? conf->dns_port
+       : 0,
+       prot_);
+}
 
 const sockaddr *
 sockinfo::sav4() const
@@ -71,7 +82,7 @@
   return (const sockaddr *)&sa;
 }
 
-static char hostport[10 + 15 + 1 + 5 + 1]; // protype / IPv4 : port
+static char hostport[10 + 15 + 1 + 5 + 1]; // proto / IPv4 : port
 
 const char *
 sockinfo::ntoa () const
@@ -98,20 +109,26 @@
   u8 protocols = prot;
 
   if (prot & (PROT_UDPv4 | PROT_TCPv4))
-    protocols |= PROT_IPv4;
+    protocols |= PROT_IPv4 | PROT_ICMPv4;
 
   if (conf
-      && prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4)
+      && prot & PROTv4
       && conf->protocols & PROT_UDPv4
       && conf->udp_port)
     protocols |= PROT_UDPv4;
 
   if (conf
-      && prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4)
+      && prot & PROTv4
       && conf->protocols & PROT_TCPv4
       && conf->tcp_port)
     protocols |= PROT_TCPv4;
 
+  if (conf
+      && prot & PROTv4
+      && conf->protocols & PROT_DNSv4
+      && conf->dns_port)
+    protocols |= PROT_DNSv4;
+
   return protocols;
 }
 
@@ -121,10 +138,10 @@
   if (prot_ == prot)
     return true;
 
-  if (prot & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4)
-      && prot_ & (PROT_IPv4 | PROT_UDPv4 | PROT_TCPv4))
+  if (prot & PROTv4
+      && prot_ & PROTv4)
     {
-      if (prot_ & PROT_IPv4)
+      if (prot_ & (PROT_IPv4 | PROT_ICMPv4))
         {
           prot = prot_;
           port = 0;
@@ -150,6 +167,15 @@
           port = htons (conf->tcp_port);
           return true;
         }
+
+      if (conf
+          && prot_ & PROT_DNSv4
+          && conf->protocols & PROT_DNSv4
+          && conf->dns_port)
+        {
+          set (::conf.dns_forw_host, ::conf.dns_forw_port, prot_);
+          return true;
+        }
     }
 
   return false;