--- xpp-1.5/cupshelper.cxx.orig	2005-01-13 03:42:36.000000000 +0100
+++ xpp-1.5/cupshelper.cxx	2008-12-14 12:07:34.000000000 +0100
@@ -163,7 +163,10 @@
   int	  value(-1);
   
   request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
-  sprintf(str,"ipp://%s:%d/printers/%s",host(),port(),name);
+  if  (host()[0] == '/') // unix domain socket
+  	sprintf(str,"ipp://localhost:%d/printers/%s",port(),name);
+  else
+  	sprintf(str,"ipp://%s:%d/printers/%s",host(),port(),name);
   ippAddString(request,IPP_TAG_OPERATION,IPP_TAG_URI,"printer-uri",NULL,str);
   //sprintf(str,"/printers/%s",name);
   sprintf(str,"/printers/");
--- xpp-1.5/xpp.cxx.orig	2005-08-28 17:33:08.000000000 +0200
+++ xpp-1.5/xpp.cxx	2008-12-14 12:07:34.000000000 +0100
@@ -318,8 +318,12 @@
     ipp_t *request = CupsHelper::newIppRequest();
     char buf[1024];
     char *state = NULL, *type = NULL, *location = NULL, *comment = NULL;
-    sprintf(buf,"ipp://%s:%d/printers/%s",CupsHelper::host(),
-            CupsHelper::port(),dests[i].name);
+    if (CupsHelper::host()[0] == '/') // unix domain socket
+	    sprintf(buf,"ipp://localhost:%d/printers/%s",CupsHelper::port(),
+		    dests[i].name);
+    else
+	    sprintf(buf,"ipp://%s:%d/printers/%s",CupsHelper::host(),
+		    CupsHelper::port(),dests[i].name);
     ippAddString(request,IPP_TAG_OPERATION,IPP_TAG_URI,"printer-uri",NULL,buf);
     request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
     request = CupsHelper::processRequest(request,"/printers/");
@@ -760,8 +764,12 @@
   ipp_t *request = CupsHelper::newIppRequest();
   char buffer[1024], *t;
   const char *s, *u;
-  sprintf(buffer,"ipp://%s:%d/printers/%s",CupsHelper::host(),
-          CupsHelper::port(),dests[dest_pos].name);
+  if (CupsHelper::host()[0] == '/')
+    sprintf(buffer,"ipp://localhost:%d/printers/%s", CupsHelper::port(),
+	    dests[dest_pos].name);
+  else
+    sprintf(buffer,"ipp://%s:%d/printers/%s",CupsHelper::host(),
+	    CupsHelper::port(),dests[dest_pos].name);
   ippAddString(request,IPP_TAG_OPERATION,IPP_TAG_URI,
                "printer-uri",NULL,buffer);
   request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;
@@ -833,8 +841,12 @@
   ipp_t *request = CupsHelper::newIppRequest();
   char buffer[1024]; 
   const char *s, *t, *u;
-  sprintf(buffer,"ipp://%s:%d/printers/%s",CupsHelper::host(),
-          CupsHelper::port(),dests[dest_pos].name);
+  if (CupsHelper::host()[0] == '/') // unix domain socket
+    sprintf(buffer,"ipp://localhost:%d/printers/%s",CupsHelper::port(),
+            dests[dest_pos].name);
+  else
+    sprintf(buffer,"ipp://%s:%d/printers/%s",CupsHelper::host(),
+            CupsHelper::port(),dests[dest_pos].name);
   ippAddString(request,IPP_TAG_OPERATION,IPP_TAG_URI,
                "printer-uri",NULL,buffer);
   request->request.op.operation_id = IPP_GET_PRINTER_ATTRIBUTES;