1/*
2 * Copyright (c) 1997 - 2005, 2007 Kungliga Tekniska H�gskolan
3 * (Royal Institute of Technology, Stockholm, Sweden).
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 *
10 * 1. Redistributions of source code must retain the above copyright
11 *    notice, this list of conditions and the following disclaimer.
12 *
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * 3. Neither the name of the Institute nor the names of its contributors
18 *    may be used to endorse or promote products derived from this software
19 *    without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 */
33
34#include "kuser_locl.h"
35
36RCSID("$Id: kverify.c 19920 2007-01-15 23:21:32Z lha $");
37
38static int help_flag = 0;
39static int version_flag = 0;
40
41static struct getargs args[] = {
42    { "version", 	0,   arg_flag, &version_flag },
43    { "help",		0,   arg_flag, &help_flag }
44};
45
46static void
47usage (int ret)
48{
49    arg_printusage (args,
50		    sizeof(args)/sizeof(*args),
51		    NULL,
52		    "[principal]");
53    exit (ret);
54}
55
56int
57main(int argc, char **argv)
58{
59    krb5_context context;
60    krb5_error_code ret;
61    krb5_creds cred;
62    krb5_preauthtype pre_auth_types[] = {KRB5_PADATA_ENC_TIMESTAMP};
63    krb5_get_init_creds_opt *get_options;
64    krb5_verify_init_creds_opt verify_options;
65    krb5_principal principal = NULL;
66    int optidx = 0;
67
68    setprogname (argv[0]);
69
70    if(getarg(args, sizeof(args) / sizeof(args[0]), argc, argv, &optidx))
71	usage(1);
72
73    if (help_flag)
74	usage (0);
75
76    if(version_flag) {
77	print_version(NULL);
78	exit(0);
79    }
80
81    argc -= optidx;
82    argv += optidx;
83
84    ret = krb5_init_context(&context);
85    if (ret)
86	errx (1, "krb5_init_context failed: %d", ret);
87
88    ret = krb5_get_init_creds_opt_alloc (context, &get_options);
89    if (ret)
90	krb5_err(context, 1, ret, "krb5_get_init_creds_opt_alloc");
91
92    krb5_get_init_creds_opt_set_preauth_list (get_options,
93					      pre_auth_types,
94					      1);
95
96    krb5_verify_init_creds_opt_init (&verify_options);
97
98    if (argc) {
99	ret = krb5_parse_name(context, argv[0], &principal);
100	if (ret)
101	    krb5_err(context, 1, ret, "krb5_parse_name: %s", argv[0]);
102    }
103
104    ret = krb5_get_init_creds_password (context,
105					&cred,
106					principal,
107					NULL,
108					krb5_prompter_posix,
109					NULL,
110					0,
111					NULL,
112					get_options);
113    if (ret)
114	errx (1, "krb5_get_init_creds: %s", krb5_get_err_text(context, ret));
115
116    ret = krb5_verify_init_creds (context,
117				  &cred,
118				  NULL,
119				  NULL,
120				  NULL,
121				  &verify_options);
122    if (ret)
123	errx (1, "krb5_verify_init_creds: %s",
124	      krb5_get_err_text(context, ret));
125    krb5_free_cred_contents (context, &cred);
126    krb5_free_context (context);
127    return 0;
128}
129