nis/nis_clone_obj.c

   1 /* Copyright (c) 1997-2021 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    <https://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_object *
  27 nis_clone_object (const nis_object *src, nis_object *dest)
  28 {
  29   char *addr;
  30   unsigned int size;
  31   XDR xdrs;
  32   nis_object *res = NULL;
  33
  34   if (src == NULL)
  35     return (NULL);
  36
  37   size = xdr_sizeof ((xdrproc_t)_xdr_nis_object, (char *) src);
  38   if ((addr = calloc (1, size)) == NULL)
  39     return NULL;
  40
  41   if (dest == NULL)
  42     {
  43       if ((res = calloc (1, sizeof (nis_object))) == NULL)
  44         goto out;
  45     }
  46   else
  47     res = dest;
  48
  49   xdrmem_create (&xdrs, addr, size, XDR_ENCODE);
  50   if (!_xdr_nis_object (&xdrs, (nis_object *) src))
  51     goto out2;
  52   xdr_destroy (&xdrs);
  53   xdrmem_create (&xdrs, addr, size, XDR_DECODE);
  54   if (!_xdr_nis_object (&xdrs, res))
  55     {
  56     out2:
  57       if (dest == NULL)
  58         free (res);
  59       res = NULL;
  60     }
  61
  62   xdr_destroy (&xdrs);
  63  out:
  64   free (addr);
  65
  66   return res;
  67 }
  68 libnsl_hidden_nolink_def (nis_clone_object, GLIBC_2_1)