nis/nis_file.c

   1 /* Copyright (c) 1997, 1998, 1999, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Thorsten Kukuk <kukuk@suse.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 Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    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   FILE *in = fopen (cold_start_file, "rc");
  32   if (in == NULL)
  33     return NULL;
  34
  35   directory_obj *obj = calloc (1, sizeof (directory_obj));
  36
  37   if (obj != NULL)
  38     {
  39       XDR xdrs;
  40       xdrstdio_create (&xdrs, in, XDR_DECODE);
  41       bool_t status = _xdr_directory_obj (&xdrs, obj);
  42       xdr_destroy (&xdrs);
  43
  44       if (!status)
  45         {
  46           nis_free_directory (obj);
  47           obj = NULL;
  48         }
  49     }
  50
  51   fclose (in);
  52
  53   return obj;
  54 }
  55 libnsl_hidden_def (readColdStartFile)
  56
  57 bool_t
  58 writeColdStartFile (const directory_obj *obj)
  59 {
  60   XDR xdrs;
  61   FILE *out;
  62   bool_t status;
  63
  64   out = fopen (cold_start_file, "wb");
  65   if (out == NULL)
  66     return FALSE;
  67
  68   xdrstdio_create (&xdrs, out, XDR_ENCODE);
  69   status = _xdr_directory_obj (&xdrs, (directory_obj *) obj);
  70   xdr_destroy (&xdrs);
  71   fclose (out);
  72
  73   return status;
  74 }
  75
  76 nis_object *
  77 nis_read_obj (const char *name)
  78 {
  79   XDR xdrs;
  80   FILE *in;
  81   bool_t status;
  82   nis_object *obj;
  83
  84   in = fopen (name, "rb");
  85   if (in == NULL)
  86     return NULL;
  87
  88   obj = calloc (1, sizeof (nis_object));
  89   if (obj == NULL)
  90     {
  91       fclose (in);
  92       return NULL;
  93     }
  94
  95   xdrstdio_create (&xdrs, in, XDR_DECODE);
  96   status =_xdr_nis_object (&xdrs, obj);
  97   xdr_destroy (&xdrs);
  98   fclose (in);
  99
 100   if (status)
 101     return obj;
 102   else
 103     {
 104       nis_free_object (obj);
 105       return NULL;
 106     }
 107 }
 108
 109 bool_t
 110 nis_write_obj (const char *name, const nis_object *obj)
 111 {
 112   XDR xdrs;
 113   FILE *out;
 114   bool_t status;
 115
 116   out = fopen (name, "wb");
 117   if (out == NULL)
 118     return FALSE;
 119
 120   xdrstdio_create (&xdrs, out, XDR_ENCODE);
 121   status = _xdr_nis_object (&xdrs, (nis_object *) obj);
 122   xdr_destroy (&xdrs);
 123   fclose (out);
 124
 125   return status;
 126 }