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-rw-r--r--auth-chall.c61
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1/*
2 * Copyright (c) 2001 Markus Friedl. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#include "includes.h"
26RCSID("$OpenBSD: auth-chall.c,v 1.1 2001/01/18 17:12:43 markus Exp $");
27
28#include "ssh.h"
29#include "auth.h"
30
31#ifdef SKEY
32char *
33get_challenge(Authctxt *authctxt, char *devs)
34{
35 static char challenge[1024];
36 struct skey skey;
37 if (skeychallenge(&skey, authctxt->user, challenge) == -1)
38 return NULL;
39 strlcat(challenge, "\nS/Key Password: ", sizeof challenge);
40 return challenge;
41}
42int
43verify_response(Authctxt *authctxt, char *response)
44{
45 return (authctxt->valid &&
46 skey_haskey(authctxt->pw->pw_name) == 0 &&
47 skey_passcheck(authctxt->pw->pw_name, response) != -1);
48}
49#else
50/* not available */
51char *
52get_challenge(Authctxt *authctxt, char *devs)
53{
54 return NULL;
55}
56int
57verify_response(Authctxt *authctxt, char *response)
58{
59 return 0;
60}
61#endif