nis/nis_clone_res.c

   1 /* Copyright (c) 1997 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 Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <string.h>
  21 #include <rpc/rpc.h>
  22 #include <rpcsvc/nis.h>
  23
  24 nis_result *
  25 nis_clone_result (const nis_result *src, nis_result *dest)
  26 {
  27   unsigned char *addr;
  28   unsigned int size;
  29   XDR xdrs;
  30   nis_result *res;
  31
  32   if (src == NULL)
  33     return (NULL);
  34
  35   size = xdr_sizeof ((xdrproc_t)xdr_nis_result, (char *)src);
  36   if ((addr = calloc(1, size)) == NULL)
  37     return NULL;
  38
  39   if (dest == NULL)
  40     {
  41       if ((res = calloc (1, sizeof (nis_result))) == NULL)
  42         {
  43           free (addr);
  44           return NULL;
  45         }
  46     }
  47   else
  48     res = dest;
  49
  50   xdrmem_create(&xdrs, addr, size, XDR_ENCODE);
  51   if (!xdr_nis_result (&xdrs, (nis_result *)src))
  52     {
  53       xdr_destroy (&xdrs);
  54       free (addr);
  55       return NULL;
  56     }
  57   xdr_destroy (&xdrs);
  58   xdrmem_create(&xdrs, addr, size, XDR_DECODE);
  59   if (!xdr_nis_result(&xdrs, res))
  60     {
  61       xdr_destroy (&xdrs);
  62       free (addr);
  63       return NULL;
  64     }
  65   xdr_destroy (&xdrs);
  66   free (addr);
  67
  68   return res;
  69 }