view netinstall/nio-file.cc @ 1833:eed841acc858

[xemacs-hg @ 2003-12-19 14:28:45 by youngs] 2003-12-15 Steve Youngs <sryoungs@bigpond.net.au> * wid-edit.el (lazy): New. (widget-child-value-get): New. (widget-child-value-inline): New. (widget-child-validate): New. (widget-type-value-create): New. (widget-type-default-get): New. (widget-type-match): New. This adds a "lazy" widget to allow the definition of recursive datatypes for customize. The composite widgets expand their subtypes immediately, which cause obvious problems for recursive datatypes. The "lazy" will only expand them when needed, hense the name. From Per Abrahamsen <abraham@dina.kvl.dk> 2003-12-15 Steve Youngs <sryoungs@bigpond.net.au> * lispref/customize.texi (Defining New Types): New node. From Per Abrahamsen <abraham@dina.kvl.dk>
author youngs
date Fri, 19 Dec 2003 14:29:07 +0000
parents 3078fd1074e8
children
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/*
 * Copyright (c) 2000, Red Hat, Inc.
 *
 *     This program is free software; you can redistribute it and/or modify
 *     it under the terms of the GNU General Public License as published by
 *     the Free Software Foundation; either version 2 of the License, or
 *     (at your option) any later version.
 *
 *     A copy of the GNU General Public License can be found at
 *     http://www.gnu.org/
 *
 * Written by DJ Delorie <dj@cygnus.com>
 *
 */

/* The purpose of this file is to manage access to files stored on the
   local disk (i.e. "downloading" setup.ini).  Called from netio.cc */

#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <errno.h>
#include "win32.h"
#include "netio.h"
#include "nio-file.h"
#include "resource.h"
#include "msg.h"

NetIO_File::NetIO_File (char *Purl)
  : NetIO (Purl)
{
  struct stat s;
  fd = fopen (path, "rb");
  if (fd)
    {
      stat (path, &s);
      file_size = s.st_size;
    }
  else
    {
      char *err = strerror (errno);
      if (!err)
	err = "(unknown error)";
      note (IDS_ERR_OPEN_READ, path, err);
    }
}

NetIO_File::~NetIO_File ()
{
  if (fd)
    fclose ((FILE *)fd);
}

int
NetIO_File::ok ()
{
  return fd ? 1 : 0;
}

int
NetIO_File::read (char *buf, int nbytes)
{
  return fread (buf, 1, nbytes, (FILE *)fd);
}