nis/nis_clone_res.c

   1 /* Copyright (c) 1997-2017 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Thorsten Kukuk <kukuk@vt.uni-paderborn.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 <string.h>
  20 #include <rpc/rpc.h>
  21 #include <rpcsvc/nis.h>
  22 #include <shlib-compat.h>
  23
  24 #include "nis_xdr.h"
  25
  26 nis_result *
  27 nis_clone_result (const nis_result *src, nis_result *dest)
  28 {
  29   char *addr;
  30   unsigned int size;
  31   XDR xdrs;
  32
  33   if (src == NULL)
  34     return (NULL);
  35
  36   size = xdr_sizeof ((xdrproc_t)_xdr_nis_result, (char *)src);
  37   if ((addr = calloc(1, size)) == NULL)
  38     return NULL;
  39
  40   xdrmem_create (&xdrs, addr, size, XDR_ENCODE);
  41   if (!_xdr_nis_result (&xdrs, (nis_result *)src))
  42     {
  43       xdr_destroy (&xdrs);
  44       free (addr);
  45       return NULL;
  46     }
  47   xdr_destroy (&xdrs);
  48
  49   nis_result *res;
  50   if (dest == NULL)
  51     {
  52       if ((res = calloc (1, sizeof (nis_result))) == NULL)
  53         {
  54           free (addr);
  55           return NULL;
  56         }
  57     }
  58   else
  59     res = dest;
  60
  61   xdrmem_create (&xdrs, addr, size, XDR_DECODE);
  62   if (!_xdr_nis_result (&xdrs, res))
  63     {
  64       xdr_destroy (&xdrs);
  65       if (res != dest)
  66         free (res);
  67       free (addr);
  68       return NULL;
  69     }
  70   xdr_destroy (&xdrs);
  71   free (addr);
  72
  73   return res;
  74 }
  75 libnsl_hidden_nolink_def (nis_clone_result, GLIBC_2_1)