Try at first to use the binding file from ypbind before using RPC.

diff --git a/nis/ypclnt.c b/nis/ypclnt.c
index 3d834f1532cbb663ef91c142446f7410e9f340db..4f1fd9c1571cedb81c42c141d7e4d2c67c3640de 100644 (file)
--- a/nis/ypclnt.c
+++ b/nis/ypclnt.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+/* Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.de>, 1996.
 
@@ -24,12 +24,18 @@
 #include <rpcsvc/yp.h>
 #include <rpcsvc/ypclnt.h>
 #include <rpcsvc/ypupd.h>
+#include <sys/uio.h>
 #include <libc-lock.h>
 
 #ifndef NIS_MAXNAMELEN
 #define NIS_MAXNAMELEN 1024
 #endif
 
+/* This should only be defined on systems with a BSD compatible ypbind */
+#ifndef BINDINGDIR
+# define BINDINGDIR "/var/yp/binding"
+#endif
+
 struct dom_binding
   {
     struct dom_binding *dom_pnext;
@@ -94,6 +100,44 @@ __yp_bind (const char *domain, dom_binding **ypdb)
           return YPERR_YPBIND;
         }
 
+#if USE_BINDINGDIR
+      if (ysd->dom_vers < 1)
+       {
+         char path[strlen (BINDINGDIR) + strlen (domain) + 10];
+         struct iovec vec[2];
+         u_short port;
+         int fd;
+
+         sprintf (path, "%s/%s.%ld", BINDINGDIR, domain, YPBINDVERS);
+         fd = open (path, O_RDONLY);
+         if (fd >= 0)
+           {
+             /* We have a binding file and could save a RPC call */
+             vec[0].iov_base = &port;
+             vec[0].iov_len = sizeof (port);
+             vec[1].iov_base = &ypbr;
+             vec[1].iov_len = sizeof (ypbr);
+
+             if (readv (fd, vec, 2) == vec[0].iov_len + vec[1].iov_len)
+               {
+                 memset (&ysd->dom_server_addr, '\0',
+                         sizeof ysd->dom_server_addr);
+                 ysd->dom_server_addr.sin_family = AF_INET;
+                 memcpy (&ysd->dom_server_addr.sin_port,
+                         ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_port,
+                         sizeof (ysd->dom_server_addr.sin_port));
+                 memcpy (&ysd->dom_server_addr.sin_addr.s_addr,
+                         ypbr.ypbind_resp_u.ypbind_bindinfo.ypbind_binding_addr,
+                         sizeof (ysd->dom_server_addr.sin_addr.s_addr));
+                 ysd->dom_vers = YPVERS;
+                 strncpy (ysd->dom_domain, domain, YPMAXDOMAIN);
+                 ysd->dom_domain[YPMAXDOMAIN] = '\0';
+               }
+             close (fd);
+           }
+       }
+#endif /* USE_BINDINGDIR */
+
       if (ysd->dom_vers == -1)
         {
           if(ysd->dom_client)