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/* $OpenBSD: skeyinfo.c,v 1.5 1998/06/21 22:14:03 millert Exp $ */
/*
* Copyright (c) 1997 Todd C. Miller <Todd.Miller@courtesan.com>
* All rights reserved.
*
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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 <err.h>
#include <limits.h>
#include <paths.h>
#include <pwd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <skey.h>
extern char *__progname;
void usage __P((void));
int
main(argc, argv)
int argc;
char **argv;
{
struct passwd *pw;
struct skey key;
char *name = NULL;
int errs, ch, verbose = 0;
if (geteuid() != 0)
errx(1, "must be setuid root");
while ((ch = getopt(argc, argv, "v")) != -1)
switch(ch) {
case 'v':
verbose = 1;
break;
default:
usage();
}
argc -= optind;
argv += optind;
if (argc == 1)
name = argv[0];
else if (argc > 1)
usage();
if (name && getuid() != 0)
errx(1, "only root may specify an alternate user");
if (name) {
if (strlen(name) > PASS_MAX)
errx(1, "username too long (%d chars max)", PASS_MAX);
if ((pw = getpwnam(name)) == NULL)
errx(1, "no passwd entry for %s", name);
} else {
if ((pw = getpwuid(getuid())) == NULL)
errx(1, "no passwd entry for uid %u", getuid());
}
if ((name = strdup(pw->pw_name)) == NULL)
err(1, "cannot allocate memory");
sevenbit(name);
errs = skeylookup(&key, name);
switch (errs) {
case 0: /* Success! */
if (verbose)
(void)printf("otp-%s ", skey_get_algorithm());
(void)printf("%d %s\n", key.n - 1, key.seed);
break;
case -1: /* File error */
warnx("cannot open %s", _PATH_SKEYKEYS);
break;
case 1: /* Unknown user */
warnx("%s is not listed in %s", name, _PATH_SKEYKEYS);
}
(void)fclose(key.keyfile);
exit(errs);
}
void
usage()
{
(void)fprintf(stderr, "Usage: %s [-v] [user]\n", __progname);
exit(1);
}
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