xref: /netbsd-src/usr.bin/skeyinfo/skeyinfo.c (revision fdecd6a253f999ae92b139670d9e15cc9df4497c)
1 /*	$NetBSD: skeyinfo.c,v 1.2 1997/06/24 06:18:58 mikel 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  * 3. All advertising materials mentioning features or use of this software
19  *    must display the following acknowledgement:
20  *	This product includes software developed by the NetBSD
21  *	Foundation, Inc. and its contributors.
22  * 4. Neither the name of The NetBSD Foundation nor the names of its
23  *    contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
36  * POSSIBILITY OF SUCH DAMAGE.
37  */
38 
39 #include <sys/cdefs.h>
40 
41 #ifndef lint
42 __RCSID("$NetBSD: skeyinfo.c,v 1.2 1997/06/24 06:18:58 mikel Exp $");
43 #endif
44 
45 #include <stdio.h>
46 #include <pwd.h>
47 #include <err.h>
48 #include <skey.h>
49 #include <string.h>
50 #include <unistd.h>
51 
52 int main __P((int, char *[]));
53 
54 int
55 main(argc, argv)
56 	int             argc;
57 	char           *argv[];
58 {
59 	struct skey     skey;
60 	char            name[100], prompt[1024];
61 	int             uid;
62 	struct passwd  *pw = NULL;
63 
64 	argc--;
65 	argv++;
66 
67 	if (geteuid())
68 		errx(1, "must be root to read /etc/skeykeys");
69 
70 	uid = getuid();
71 
72 	if (!argc)
73 		pw = getpwuid(uid);
74 	else if (!uid)
75 		pw = getpwnam(argv[0]);
76 	else
77 		errx(1, "permission denied to look other users skeys");
78 
79 	if (!pw) {
80 		if (argc)
81 			errx(1, "%s: no such user", argv[0]);
82 		else
83 			errx(1, "who are you?");
84 	}
85 
86 	(void) strncpy(name, pw->pw_name, sizeof(name));
87 	name[sizeof(name) - 1] = '\0';
88 
89 	if (getskeyprompt(&skey, name, prompt) == -1) {
90 		printf("%s %s no s/key\n",
91 		       argc ? name : "You",
92 		       argc ? "has" : "have");
93 	}
94 	else {
95 		if (argc)
96 			printf("%s's ", pw->pw_name);
97 		else
98 			printf("Your ");
99 		printf("next %s", prompt);
100 	}
101 	return 0;
102 }
103