nis/nis_ping.c

   1 /* Copyright (c) 1997-2018 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 #include <shlib-compat.h>
  21
  22 #include "nis_xdr.h"
  23 #include "nis_intern.h"
  24
  25 void
  26 nis_ping (const_nis_name dirname, unsigned int utime,
  27           const nis_object *dirobj)
  28 {
  29   nis_result *res = NULL;
  30   nis_object *obj;
  31   ping_args args;
  32   unsigned int i;
  33
  34   if (dirname == NULL && dirobj == NULL)
  35     abort ();
  36
  37   if (dirobj == NULL)
  38     {
  39       res = nis_lookup (dirname, MASTER_ONLY);
  40       if (res == NULL || NIS_RES_STATUS (res) != NIS_SUCCESS)
  41         {
  42           nis_freeresult (res);
  43           return;
  44         }
  45       obj = res->objects.objects_val;
  46     }
  47   else
  48     obj = (nis_object *) dirobj;
  49
  50   /* Check if obj is really a diryectory object */
  51   if (__type_of (obj) != NIS_DIRECTORY_OBJ)
  52     {
  53       nis_freeresult (res);
  54       return;
  55     }
  56
  57   if (dirname == NULL)
  58     args.dir = obj->DI_data.do_name;
  59   else
  60     args.dir = (char *) dirname;
  61   args.stamp = utime;
  62
  63   /* Send the ping only to replicas */
  64   for (i = 1; i < obj->DI_data.do_servers.do_servers_len; ++i)
  65     __do_niscall2 (&obj->DI_data.do_servers.do_servers_val[i], 1,
  66                    NIS_PING, (xdrproc_t) _xdr_ping_args,
  67                    (caddr_t) &args, (xdrproc_t) xdr_void,
  68                    (caddr_t) NULL, 0, NULL);
  69   nis_freeresult (res);
  70 }
  71 libnsl_hidden_nolink_def (nis_ping, GLIBC_2_1)