1/*	$NetBSD: skeyinfo.c,v 1.6 2009/09/05 06:13:34 dholland Exp $	*/
2
3/*-
4 * Copyright (c) 1997 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Andrew Brown.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#include <sys/cdefs.h>
33#ifndef lint
34__RCSID("$NetBSD: skeyinfo.c,v 1.6 2009/09/05 06:13:34 dholland Exp $");
35#endif
36
37#include <err.h>
38#include <errno.h>
39#include <pwd.h>
40#include <stdio.h>
41#include <string.h>
42#include <unistd.h>
43
44#include <skey.h> /* requires stdio.h */
45
46int
47main(int argc, char *argv[])
48{
49	struct skey     skey;
50	char            name[100], prompt[1024];
51	int             uid;
52	struct passwd  *pw = NULL;
53
54	argc--;
55	argv++;
56
57	if (geteuid())
58		errx(1, "Must be root to read /etc/skeykeys");
59
60	uid = getuid();
61
62	if (!argc)
63		pw = getpwuid(uid);
64	else if (!uid)
65		pw = getpwnam(argv[0]);
66	else {
67		errno = EPERM;
68		err(1, "%s", argv[0]);
69	}
70
71	if (!pw) {
72		if (argc)
73			errx(1, "%s: no such user", argv[0]);
74		else
75			errx(1, "Who are you?");
76	}
77
78	(void) strlcpy(name, pw->pw_name, sizeof(name));
79
80	if (getskeyprompt(&skey, name, prompt) == -1) {
81		printf("%s %s no s/key\n",
82		       argc ? name : "You",
83		       argc ? "has" : "have");
84	}
85	else {
86		if (argc)
87			printf("%s's ", pw->pw_name);
88		else
89			printf("Your ");
90		printf("next %s", prompt);
91	}
92	return 0;
93}
94