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      1 /*	$NetBSD: skeyinfo.c,v 1.7 2009/09/05 06:15:24 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 1.7 2009/09/05 06:15:24 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 
     46 int
     47 main(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