--- rxvt-unicode/src/init.C	2007/09/14 10:15:41	1.213
+++ rxvt-unicode/src/init.C	2007/09/14 17:10:34	1.214
@@ -7,6 +7,9 @@
  *                              - original version
  * Copyright (c) 1994      Robert Nation <nation@rocket.sanders.lockheed.com>
  *                              - extensive modifications
+ * Copyright (c) 1996      Chuck Blake <cblake@BBN.COM>
+ * Copyright (c) 1997      mj olesen <olesen@me.queensu.ca>
+ * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
  * Copyright (c) 1998-2001 Geoff Wing <gcw@pobox.com>
  *                              - extensive modifications
  * Copyright (c) 1999      D J Hawkey Jr <hawkeyd@visi.com>
@@ -40,6 +43,94 @@
 
 #include <csignal>
 
+#ifdef DISPLAY_IS_IP
+/* On Solaris link with -lsocket and -lnsl */
+#include <sys/types.h>
+#include <sys/socket.h>
+
+/* these next two are probably only on Sun (not Solaris) */
+#ifdef HAVE_SYS_SOCKIO_H
+#include <sys/sockio.h>
+#endif
+#ifdef HAVE_SYS_BYTEORDER_H
+#include <sys/byteorder.h>
+#endif
+
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <net/if.h>
+#include <net/if_arp.h>
+
+static char *
+rxvt_network_display (const char *display)
+{
+  char            buffer[1024], *rval = NULL;
+  struct ifconf   ifc;
+  struct ifreq   *ifr;
+  int             i, skfd;
+
+  if (display[0] != ':' && strncmp (display, "unix:", 5))
+    return (char *) display;		/* nothing to do */
+
+  ifc.ifc_len = sizeof (buffer);	/* Get names of all ifaces */
+  ifc.ifc_buf = buffer;
+
+  if ((skfd = socket (AF_INET, SOCK_DGRAM, 0)) < 0)
+    {
+      perror ("socket");
+      return NULL;
+    }
+
+  if (ioctl (skfd, SIOCGIFCONF, &ifc) < 0)
+    {
+      perror ("SIOCGIFCONF");
+      close (skfd);
+      return NULL;
+    }
+
+  for (i = 0, ifr = ifc.ifc_req;
+       i < (ifc.ifc_len / sizeof (struct ifreq));
+       i++, ifr++)
+    {
+      struct ifreq ifr2;
+
+      strcpy (ifr2.ifr_name, ifr->ifr_name);
+
+      if (ioctl (skfd, SIOCGIFADDR, &ifr2) >= 0)
+        {
+          unsigned long addr;
+          struct sockaddr_in *p_addr;
+
+          p_addr = (struct sockaddr_in *) &ifr2.ifr_addr;
+          addr = htonl ((unsigned long)p_addr->sin_addr.s_addr);
+
+          /*
+           * not "0.0.0.0" or "127.0.0.1" - so format the address
+           */
+          if (addr && addr != 0x7F000001)
+            {
+              char *colon = strchr (display, ':');
+
+              if (colon == NULL)
+                colon = ":0.0";
+
+              rval = rxvt_malloc (strlen (colon) + 16);
+              sprintf (rval, "%d.%d.%d.%d%s",
+                      (int) ((addr >> 030) & 0xFF),
+                      (int) ((addr >> 020) & 0xFF),
+                      (int) ((addr >> 010) & 0xFF),
+                      (int) (addr & 0xFF), colon);
+              break;
+            }
+        }
+    }
+
+  close (skfd);
+
+  return rval;
+}
+#endif
+
 const char *const def_colorName[] =
   {
     COLOR_FOREGROUND,