view netinstall/netio.h @ 2958:9e04ad6a1ac6

[xemacs-hg @ 2005-09-27 05:35:24 by ben] Add SRC inclusion, for lib-src changes Makefile.in.in: Always include SRC, so <config.h> in lib-src always works. sysdep.c: Fix bit-rotted dup2 code. Also new -> new_. nt.c: Fix possible use of uninitialized var. Also new -> new_. text.c, event-Xt.c, lisp.h, number-gmp.c, number-gmp.h: Fix compilation warnings. A couple of changes of new -> new_, 'foo -> `foo'.
author ben
date Tue, 27 Sep 2005 05:35:26 +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>
 *
 */

/* This is the parent class for all the access methods known to setup
   (i.e. ways to download files from the internet or other sources */

class NetIO {
protected:
  NetIO (char *url);
  void set_url (char *url);

public:
  /* if nonzero, this is the estimated total file size */
  int file_size;
  /* broken down url FYI */
  char *url;
  char *proto;
  char *host;
  int port;
  char *path;
  virtual ~NetIO ();

  /* The user calls this function to create a suitable accessor for
     the given URL.  It uses the network setup state in state.h.  If
     anything fails, either the return values is NULL or the returned
     object is !ok() */
  static NetIO * open (char *url);

  /* If !ok() that means the transfer isn't happening. */
  virtual int ok ();

  /* Read `nbytes' bytes from the file.  Returns zero when the file
     is complete. */
  virtual int read (char *buf, int nbytes);

  /* Helper functions for http/ftp protocols.  Both return nonzero for
     "cancel", zero for "ok".  They set net_proxy_user, etc, in
     state.h */
  int get_auth ();
  int get_proxy_auth ();
};