nis/nis_clone_obj.c

   1 /* Copyright (c) 1997-2022 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <string.h>
  19 #include <rpc/rpc.h>
  20 #include <rpcsvc/nis.h>
  21 #include <shlib-compat.h>
  22
  23 #include "nis_xdr.h"
  24
  25 nis_object *
  26 nis_clone_object (const nis_object *src, nis_object *dest)
  27 {
  28   char *addr;
  29   unsigned int size;
  30   XDR xdrs;
  31   nis_object *res = NULL;
  32
  33   if (src == NULL)
  34     return (NULL);
  35
  36   size = xdr_sizeof ((xdrproc_t)_xdr_nis_object, (char *) src);
  37   if ((addr = calloc (1, size)) == NULL)
  38     return NULL;
  39
  40   if (dest == NULL)
  41     {
  42       if ((res = calloc (1, sizeof (nis_object))) == NULL)
  43         goto out;
  44     }
  45   else
  46     res = dest;
  47
  48   xdrmem_create (&xdrs, addr, size, XDR_ENCODE);
  49   if (!_xdr_nis_object (&xdrs, (nis_object *) src))
  50     goto out2;
  51   xdr_destroy (&xdrs);
  52   xdrmem_create (&xdrs, addr, size, XDR_DECODE);
  53   if (!_xdr_nis_object (&xdrs, res))
  54     {
  55     out2:
  56       if (dest == NULL)
  57         free (res);
  58       res = NULL;
  59     }
  60
  61   xdr_destroy (&xdrs);
  62  out:
  63   free (addr);
  64
  65   return res;
  66 }
  67 libnsl_hidden_nolink_def (nis_clone_object, GLIBC_2_1)