nis/nis_file.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 <stdio.h>
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <rpcsvc/nis.h>
  24 #include <rpcsvc/nislib.h>
  25
  26
  27 static const char cold_start_file[] = "/var/nis/NIS_COLD_START";
  28
  29 directory_obj *
  30 readColdStartFile (void)
  31 {
  32   XDR xdrs;
  33   FILE *in;
  34   directory_obj obj;
  35
  36   in = fopen (cold_start_file, "rb");
  37   if (in == NULL)
  38     return NULL;
  39   memset (&obj, '\0', sizeof (obj));
  40   xdrstdio_create (&xdrs, in, XDR_DECODE);
  41   if (!xdr_directory_obj (&xdrs, &obj))
  42     return NULL;
  43
  44   return nis_clone_directory (&obj, NULL);
  45 }
  46
  47 bool_t
  48 writeColdStartFile (const directory_obj *obj)
  49 {
  50   XDR xdrs;
  51   FILE *out;
  52
  53   out = fopen (cold_start_file, "wb");
  54   if (out == NULL)
  55     return FALSE;
  56
  57   xdrstdio_create (&xdrs, out, XDR_ENCODE);
  58   if (!xdr_directory_obj (&xdrs, (directory_obj *) obj))
  59     return FALSE;
  60
  61   return TRUE;
  62 }
  63
  64 nis_object *
  65 nis_read_obj (const char *name)
  66 {
  67   XDR xdrs;
  68   FILE *in;
  69   nis_object obj;
  70
  71   in = fopen (name, "rb");
  72   if (in == NULL)
  73     return NULL;
  74
  75   memset (&obj, '\0', sizeof (obj));
  76   xdrstdio_create (&xdrs, in, XDR_DECODE);
  77   if (!xdr_nis_object (&xdrs, &obj))
  78     return NULL;
  79
  80   return nis_clone_object (&obj, NULL);
  81 }
  82
  83 bool_t
  84 nis_write_obj (const char *name, const nis_object *obj)
  85 {
  86   XDR xdrs;
  87   FILE *out;
  88
  89   out = fopen (name, "wb");
  90   if (out == NULL)
  91     return FALSE;
  92
  93   xdrstdio_create (&xdrs, out, XDR_ENCODE);
  94   /* XXX The following cast is bad!  Shouldn't the XDR functions take
  95      pointers to const objects?  */
  96   if (!xdr_nis_object (&xdrs, (nis_object *) obj))
  97     return FALSE;
  98
  99   return TRUE;
 100 }