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;
  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   status = _xdr_directory_obj (&xdrs, &obj);
  42   xdr_destroy (&xdrs);
  43   fclose (in);
  44
  45   return status ? nis_clone_directory (&obj, NULL) : NULL;
  46 }
  47
  48 bool_t
  49 writeColdStartFile (const directory_obj *obj)
  50 {
  51   XDR xdrs;
  52   FILE *out;
  53   bool_t status;
  54
  55   out = fopen (cold_start_file, "wb");
  56   if (out == NULL)
  57     return FALSE;
  58
  59   xdrstdio_create (&xdrs, out, XDR_ENCODE);
  60   status = _xdr_directory_obj (&xdrs, (directory_obj *) obj);
  61   xdr_destroy (&xdrs);
  62   fclose (out);
  63
  64   return status;
  65 }
  66
  67 nis_object *
  68 nis_read_obj (const char *name)
  69 {
  70   XDR xdrs;
  71   FILE *in;
  72   bool_t status;
  73   nis_object obj;
  74
  75   in = fopen (name, "rb");
  76   if (in == NULL)
  77     return NULL;
  78
  79   memset (&obj, '\0', sizeof (obj));
  80   xdrstdio_create (&xdrs, in, XDR_DECODE);
  81   status =_xdr_nis_object (&xdrs, &obj);
  82   xdr_destroy (&xdrs);
  83   fclose (in);
  84
  85   return status ? nis_clone_object (&obj, NULL) : NULL;
  86 }
  87
  88 bool_t
  89 nis_write_obj (const char *name, const nis_object *obj)
  90 {
  91   XDR xdrs;
  92   FILE *out;
  93   bool_t status;
  94
  95   out = fopen (name, "wb");
  96   if (out == NULL)
  97     return FALSE;
  98
  99   xdrstdio_create (&xdrs, out, XDR_ENCODE);
 100   status = _xdr_nis_object (&xdrs, (nis_object *) obj);
 101   xdr_destroy (&xdrs);
 102   fclose (out);
 103
 104   return status;
 105 }