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1 | /* $OpenBSD: auth2-passwd.c,v 1.8 2006/07/22 20:48:22 stevesk Exp $ */ | |
2 | /* | |
3 | * Copyright (c) 2000 Markus Friedl. All rights reserved. | |
4 | * | |
5 | * Redistribution and use in source and binary forms, with or without | |
6 | * modification, are permitted provided that the following conditions | |
7 | * are met: | |
8 | * 1. Redistributions of source code must retain the above copyright | |
9 | * notice, this list of conditions and the following disclaimer. | |
10 | * 2. Redistributions in binary form must reproduce the above copyright | |
11 | * notice, this list of conditions and the following disclaimer in the | |
12 | * documentation and/or other materials provided with the distribution. | |
13 | * | |
14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
15 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
16 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
17 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
18 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
19 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
20 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
21 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
23 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 | */ | |
25 | ||
26 | #include "includes.h" | |
27 | ||
28 | #include <string.h> | |
29 | ||
30 | #include "xmalloc.h" | |
31 | #include "packet.h" | |
32 | #include "log.h" | |
33 | #include "auth.h" | |
34 | #include "monitor_wrap.h" | |
35 | #include "servconf.h" | |
36 | ||
37 | /* import */ | |
38 | extern ServerOptions options; | |
39 | ||
40 | static int | |
41 | userauth_passwd(Authctxt *authctxt) | |
42 | { | |
43 | char *password, *newpass; | |
44 | int authenticated = 0; | |
45 | int change; | |
46 | u_int len, newlen; | |
47 | ||
48 | change = packet_get_char(); | |
49 | password = packet_get_string(&len); | |
50 | if (change) { | |
51 | /* discard new password from packet */ | |
52 | newpass = packet_get_string(&newlen); | |
53 | memset(newpass, 0, newlen); | |
54 | xfree(newpass); | |
55 | } | |
56 | packet_check_eom(); | |
57 | ||
58 | if (change) | |
59 | logit("password change not supported"); | |
60 | else if (PRIVSEP(auth_password(authctxt, password)) == 1) | |
61 | authenticated = 1; | |
62 | #ifdef HAVE_CYGWIN | |
63 | if (check_nt_auth(1, authctxt->pw) == 0) | |
64 | authenticated = 0; | |
65 | #endif | |
66 | memset(password, 0, len); | |
67 | xfree(password); | |
68 | return authenticated; | |
69 | } | |
70 | ||
71 | Authmethod method_passwd = { | |
72 | "password", | |
73 | userauth_passwd, | |
74 | &options.password_authentication | |
75 | }; |