nis/nis_file.c

   1 /* Copyright (c) 1997, 1998 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 "nis_xdr.h"
  25
  26 static const char cold_start_file[] = "/var/nis/NIS_COLD_START";
  27
  28 directory_obj *
  29 readColdStartFile (void)
  30 {
  31   XDR xdrs;
  32   FILE *in;
  33   bool_t status;
  34   directory_obj *obj = calloc (1, sizeof (directory_obj));
  35
  36   if (obj == NULL)
  37     return NULL;
  38
  39   in = fopen (cold_start_file, "rb");
  40   if (in == NULL)
  41     return NULL;
  42   xdrstdio_create (&xdrs, in, XDR_DECODE);
  43   status = _xdr_directory_obj (&xdrs, obj);
  44   xdr_destroy (&xdrs);
  45   fclose (in);
  46
  47   if (status)
  48     return obj;
  49   else
  50     {
  51       nis_free_directory (obj);
  52       return NULL;
  53     }
  54 }
  55
  56 bool_t
  57 writeColdStartFile (const directory_obj *obj)
  58 {
  59   XDR xdrs;
  60   FILE *out;
  61   bool_t status;
  62
  63   out = fopen (cold_start_file, "wb");
  64   if (out == NULL)
  65     return FALSE;
  66
  67   xdrstdio_create (&xdrs, out, XDR_ENCODE);
  68   status = _xdr_directory_obj (&xdrs, (directory_obj *) obj);
  69   xdr_destroy (&xdrs);
  70   fclose (out);
  71
  72   return status;
  73 }
  74
  75 nis_object *
  76 nis_read_obj (const char *name)
  77 {
  78   XDR xdrs;
  79   FILE *in;
  80   bool_t status;
  81   nis_object *obj = calloc (1, sizeof (nis_object));
  82
  83   if (obj == NULL)
  84     return NULL;
  85
  86   in = fopen (name, "rb");
  87   if (in == NULL)
  88     return NULL;
  89
  90   xdrstdio_create (&xdrs, in, XDR_DECODE);
  91   status =_xdr_nis_object (&xdrs, obj);
  92   xdr_destroy (&xdrs);
  93   fclose (in);
  94
  95   if (status)
  96     return obj;
  97   else
  98     {
  99       nis_free_object (obj);
 100       return NULL;
 101     }
 102 }
 103
 104 bool_t
 105 nis_write_obj (const char *name, const nis_object *obj)
 106 {
 107   XDR xdrs;
 108   FILE *out;
 109   bool_t status;
 110
 111   out = fopen (name, "wb");
 112   if (out == NULL)
 113     return FALSE;
 114
 115   xdrstdio_create (&xdrs, out, XDR_ENCODE);
 116   status = _xdr_nis_object (&xdrs, (nis_object *) obj);
 117   xdr_destroy (&xdrs);
 118   fclose (out);
 119
 120   return status;
 121 }