nis/nis_ping.c

   1 /* Copyright (c) 1997-2015 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Thorsten Kukuk <kukuk@suse.de>, 1997.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <rpcsvc/nis.h>
  20
  21 #include "nis_xdr.h"
  22 #include "nis_intern.h"
  23
  24 void
  25 nis_ping (const_nis_name dirname, unsigned int utime,
  26           const nis_object *dirobj)
  27 {
  28   nis_result *res = NULL;
  29   nis_object *obj;
  30   ping_args args;
  31   unsigned int i;
  32
  33   if (dirname == NULL && dirobj == NULL)
  34     abort ();
  35
  36   if (dirobj == NULL)
  37     {
  38       res = nis_lookup (dirname, MASTER_ONLY);
  39       if (res == NULL || NIS_RES_STATUS (res) != NIS_SUCCESS)
  40         {
  41           nis_freeresult (res);
  42           return;
  43         }
  44       obj = res->objects.objects_val;
  45     }
  46   else
  47     obj = (nis_object *) dirobj;
  48
  49   /* Check if obj is really a diryectory object */
  50   if (__type_of (obj) != NIS_DIRECTORY_OBJ)
  51     {
  52       nis_freeresult (res);
  53       return;
  54     }
  55
  56   if (dirname == NULL)
  57     args.dir = obj->DI_data.do_name;
  58   else
  59     args.dir = (char *) dirname;
  60   args.stamp = utime;
  61
  62   /* Send the ping only to replicas */
  63   for (i = 1; i < obj->DI_data.do_servers.do_servers_len; ++i)
  64     __do_niscall2 (&obj->DI_data.do_servers.do_servers_val[i], 1,
  65                    NIS_PING, (xdrproc_t) _xdr_ping_args,
  66                    (caddr_t) &args, (xdrproc_t) xdr_void,
  67                    (caddr_t) NULL, 0, NULL);
  68   nis_freeresult (res);
  69 }