nio-file.cc

   1 /*
   2  * Copyright (c) 2000, Red Hat, Inc.
   3  *
   4  *     This program is free software; you can redistribute it and/or modify
   5  *     it under the terms of the GNU General Public License as published by
   6  *     the Free Software Foundation; either version 2 of the License, or
   7  *     (at your option) any later version.
   8  *
   9  *     A copy of the GNU General Public License can be found at
  10  *     http://www.gnu.org/
  11  *
  12  * Written by DJ Delorie <dj@cygnus.com>
  13  *
  14  */
  15
  16 /* The purpose of this file is to manage access to files stored on the
  17    local disk (i.e. "downloading" setup.ini).  Called from netio.cc */
  18
  19 #if 0
  20 static const char *cvsid =
  21   "\n%%% $Id$\n";
  22 #endif
  23
  24 #include "win32.h"
  25 #include <stdio.h>
  26 #include <sys/types.h>
  27 #include <sys/stat.h>
  28 #include <errno.h>
  29 #include "netio.h"
  30 #include "nio-file.h"
  31 #include "resource.h"
  32 #include "msg.h"
  33 #include "filemanip.h"
  34
  35 NetIO_File::NetIO_File (char *Purl):
  36 NetIO (Purl)
  37 {
  38   fd = fopen (path, "rb");
  39   if (fd)
  40     {
  41       file_size = get_file_size (path);
  42     }
  43   else
  44     {
  45       const char *err = strerror (errno);
  46       if (!err)
  47         err = "(unknown error)";
  48       note (IDS_ERR_OPEN_READ, path, err);
  49     }
  50 }
  51
  52 NetIO_File::~NetIO_File ()
  53 {
  54   if (fd)
  55     fclose ((FILE *) fd);
  56 }
  57
  58 int
  59 NetIO_File::ok ()
  60 {
  61   return fd ? 1 : 0;
  62 }
  63
  64 int
  65 NetIO_File::read (char *buf, int nbytes)
  66 {
  67   return fread (buf, 1, nbytes, (FILE *) fd);
  68 }