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/* $OpenBSD: skeyinfo.c,v 1.13 2003/06/10 22:20:51 deraadt Exp $ */
/*
* Copyright (c) 1997, 2001, 2002 Todd C. Miller <Todd.Miller@courtesan.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND TODD C. MILLER DISCLAIMS ALL
* WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL TODD C. MILLER BE LIABLE
* FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#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(void);
int
main(int argc, char **argv)
{
struct passwd *pw;
struct skey key;
char *name = NULL;
int error, ch, verbose = 0;
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 ((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);
error = skeylookup(&key, name);
switch (error) {
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 */
err(1, "cannot open %s/%s", _PATH_SKEYDIR, name);
break;
case 1: /* Unknown user */
errx(1, "%s is not listed in %s", name, _PATH_SKEYDIR);
break;
}
(void)fclose(key.keyfile);
exit(error ? 1 : 0);
}
void
usage(void)
{
(void)fprintf(stderr, "usage: %s [-v] [user]\n", __progname);
exit(1);
}
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