NetBSD/usr.bin/skeyinfo/skeyinfo.c

94 lines
2.6 KiB
C

/* $NetBSD: skeyinfo.c,v 1.7 2009/09/05 06:15:24 dholland Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Andrew Brown.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
#ifndef lint
__RCSID("$NetBSD: skeyinfo.c,v 1.7 2009/09/05 06:15:24 dholland Exp $");
#endif
#include <err.h>
#include <errno.h>
#include <pwd.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <skey.h> /* requires stdio.h */
int
main(int argc, char *argv[])
{
struct skey skey;
char name[100], prompt[1024];
int uid;
struct passwd *pw = NULL;
argc--;
argv++;
if (geteuid())
errx(1, "Must be root to read /etc/skeykeys");
uid = getuid();
if (!argc)
pw = getpwuid(uid);
else if (!uid)
pw = getpwnam(argv[0]);
else {
errno = EPERM;
err(1, "%s", argv[0]);
}
if (!pw) {
if (argc)
errx(1, "%s: no such user", argv[0]);
else
errx(1, "Who are you?");
}
(void) strlcpy(name, pw->pw_name, sizeof(name));
if (getskeyprompt(&skey, name, prompt) == -1) {
printf("%s %s no s/key\n",
argc ? name : "You",
argc ? "has" : "have");
}
else {
if (argc)
printf("%s's ", pw->pw_name);
else
printf("Your ");
printf("next %s", prompt);
}
return 0;
}