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skeyinfo.c revision 1.4 
      1 /*	$NetBSD: skeyinfo.c,v 1.4 2003/07/23 04:11:50 itojun 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 #ifndef lint
     41 __RCSID("$NetBSD: skeyinfo.c,v 1.4 2003/07/23 04:11:50 itojun Exp $");
     42 #endif
     43 
     44 #include <stdio.h>
     45 #include <pwd.h>
     46 #include <err.h>
     47 #include <skey.h>
     48 #include <string.h>
     49 #include <unistd.h>
     50 
     51 int main __P((int, char *[]));
     52 
     53 int
     54 main(argc, argv)
     55 	int             argc;
     56 	char           *argv[];
     57 {
     58 	struct skey     skey;
     59 	char            name[100], prompt[1024];
     60 	int             uid;
     61 	struct passwd  *pw = NULL;
     62 
     63 	argc--;
     64 	argv++;
     65 
     66 	if (geteuid())
     67 		errx(1, "must be root to read /etc/skeykeys");
     68 
     69 	uid = getuid();
     70 
     71 	if (!argc)
     72 		pw = getpwuid(uid);
     73 	else if (!uid)
     74 		pw = getpwnam(argv[0]);
     75 	else
     76 		errx(1, "permission denied to look other users skeys");
     77 
     78 	if (!pw) {
     79 		if (argc)
     80 			errx(1, "%s: no such user", argv[0]);
     81 		else
     82 			errx(1, "who are you?");
     83 	}
     84 
     85 	(void) strlcpy(name, pw->pw_name, sizeof(name));
     86 
     87 	if (getskeyprompt(&skey, name, prompt) == -1) {
     88 		printf("%s %s no s/key\n",
     89 		       argc ? name : "You",
     90 		       argc ? "has" : "have");
     91 	}
     92 	else {
     93 		if (argc)
     94 			printf("%s's ", pw->pw_name);
     95 		else
     96 			printf("Your ");
     97 		printf("next %s", prompt);
     98 	}
     99 	return 0;
    100 }
    101