Annotation of src/usr.bin/ssh/auth2-passwd.c, Revision 1.6
1.1 markus 1: /*
2: * Copyright (c) 2000 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"
26:
27: #include "xmalloc.h"
28: #include "packet.h"
29: #include "log.h"
30: #include "auth.h"
31: #include "monitor_wrap.h"
1.2 markus 32: #include "servconf.h"
1.1 markus 33:
1.2 markus 34: /* import */
35: extern ServerOptions options;
36:
37: static int
1.1 markus 38: userauth_passwd(Authctxt *authctxt)
39: {
1.5 dtucker 40: char *password, *newpass;
1.1 markus 41: int authenticated = 0;
42: int change;
1.5 dtucker 43: u_int len, newlen;
44:
1.1 markus 45: change = packet_get_char();
1.5 dtucker 46: password = packet_get_string(&len);
47: if (change) {
48: /* discard new password from packet */
49: newpass = packet_get_string(&newlen);
50: memset(newpass, 0, newlen);
51: xfree(newpass);
52: }
53: packet_check_eom();
54:
1.1 markus 55: if (change)
1.3 itojun 56: logit("password change not supported");
1.5 dtucker 57: else if (PRIVSEP(auth_password(authctxt, password)) == 1)
1.1 markus 58: authenticated = 1;
59: memset(password, 0, len);
60: xfree(password);
61: return authenticated;
62: }
1.2 markus 63:
64: Authmethod method_passwd = {
65: "password",
66: userauth_passwd,
67: &options.password_authentication
68: };