IABSD.fr/src/usr.bin/ssh/auth2-kbdint.c

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• Author : deraadt
  Date : 2019-11-13 04:47:52
  Hash : d493747f
  Message : stdarg.h required more broadly; ok djm

• usr.bin/ssh/auth2-kbdint.c

• /* $OpenBSD: auth2-kbdint.c,v 1.11 2019/11/13 04:47:52 deraadt Exp $ */
  /*
   * Copyright (c) 2000 Markus Friedl.  All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
   * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
   * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
   * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include <sys/types.h>
  
  #include <stdlib.h>
  #include <stdio.h>
  #include <stdarg.h>
  
  #include "xmalloc.h"
  #include "packet.h"
  #include "hostfile.h"
  #include "auth.h"
  #include "log.h"
  #include "misc.h"
  #include "servconf.h"
  #include "ssherr.h"
  
  /* import */
  extern ServerOptions options;
  
  static int
  userauth_kbdint(struct ssh *ssh)
  {
  	int r, authenticated = 0;
  	char *lang, *devs;
  
  	if ((r = sshpkt_get_cstring(ssh, &lang, NULL)) != 0 ||
  	    (r = sshpkt_get_cstring(ssh, &devs, NULL)) != 0 ||
  	    (r = sshpkt_get_end(ssh)) != 0)
  		fatal("%s: %s", __func__, ssh_err(r));
  
  	debug("keyboard-interactive devs %s", devs);
  
  	if (options.challenge_response_authentication)
  		authenticated = auth2_challenge(ssh, devs);
  
  	free(devs);
  	free(lang);
  	return authenticated;
  }
  
  Authmethod method_kbdint = {
  	"keyboard-interactive",
  	userauth_kbdint,
  	&options.kbd_interactive_authentication
  };