1*0a6a1f1dSLionel Sambuc /* $NetBSD: otp_challenge.c,v 1.1.1.2 2014/04/24 12:45:51 pettai Exp $ */
2ebfedea0SLionel Sambuc
3ebfedea0SLionel Sambuc /*
4ebfedea0SLionel Sambuc * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
5ebfedea0SLionel Sambuc * (Royal Institute of Technology, Stockholm, Sweden).
6ebfedea0SLionel Sambuc * All rights reserved.
7ebfedea0SLionel Sambuc *
8ebfedea0SLionel Sambuc * Redistribution and use in source and binary forms, with or without
9ebfedea0SLionel Sambuc * modification, are permitted provided that the following conditions
10ebfedea0SLionel Sambuc * are met:
11ebfedea0SLionel Sambuc *
12ebfedea0SLionel Sambuc * 1. Redistributions of source code must retain the above copyright
13ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer.
14ebfedea0SLionel Sambuc *
15ebfedea0SLionel Sambuc * 2. Redistributions in binary form must reproduce the above copyright
16ebfedea0SLionel Sambuc * notice, this list of conditions and the following disclaimer in the
17ebfedea0SLionel Sambuc * documentation and/or other materials provided with the distribution.
18ebfedea0SLionel Sambuc *
19ebfedea0SLionel Sambuc * 3. Neither the name of the Institute nor the names of its contributors
20ebfedea0SLionel Sambuc * may be used to endorse or promote products derived from this software
21ebfedea0SLionel Sambuc * without specific prior written permission.
22ebfedea0SLionel Sambuc *
23ebfedea0SLionel Sambuc * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
24ebfedea0SLionel Sambuc * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25ebfedea0SLionel Sambuc * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26ebfedea0SLionel Sambuc * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
27ebfedea0SLionel Sambuc * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28ebfedea0SLionel Sambuc * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29ebfedea0SLionel Sambuc * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30ebfedea0SLionel Sambuc * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31ebfedea0SLionel Sambuc * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32ebfedea0SLionel Sambuc * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33ebfedea0SLionel Sambuc * SUCH DAMAGE.
34ebfedea0SLionel Sambuc */
35ebfedea0SLionel Sambuc
36ebfedea0SLionel Sambuc #ifdef HAVE_CONFIG_H
37ebfedea0SLionel Sambuc #include "config.h"
38*0a6a1f1dSLionel Sambuc __RCSID("NetBSD");
39ebfedea0SLionel Sambuc #endif
40ebfedea0SLionel Sambuc
41ebfedea0SLionel Sambuc #include "otp_locl.h"
42ebfedea0SLionel Sambuc
43ebfedea0SLionel Sambuc int
otp_challenge(OtpContext * ctx,char * user,char * str,size_t len)44ebfedea0SLionel Sambuc otp_challenge (OtpContext *ctx, char *user, char *str, size_t len)
45ebfedea0SLionel Sambuc {
46ebfedea0SLionel Sambuc void *dbm;
47ebfedea0SLionel Sambuc int ret;
48ebfedea0SLionel Sambuc
49ebfedea0SLionel Sambuc ctx->challengep = 0;
50ebfedea0SLionel Sambuc ctx->err = NULL;
51ebfedea0SLionel Sambuc ctx->user = strdup(user);
52ebfedea0SLionel Sambuc if (ctx->user == NULL) {
53ebfedea0SLionel Sambuc ctx->err = "Out of memory";
54ebfedea0SLionel Sambuc return -1;
55ebfedea0SLionel Sambuc }
56ebfedea0SLionel Sambuc dbm = otp_db_open ();
57ebfedea0SLionel Sambuc if (dbm == NULL) {
58ebfedea0SLionel Sambuc ctx->err = "Cannot open database";
59ebfedea0SLionel Sambuc return -1;
60ebfedea0SLionel Sambuc }
61ebfedea0SLionel Sambuc ret = otp_get (dbm, ctx);
62ebfedea0SLionel Sambuc otp_db_close (dbm);
63ebfedea0SLionel Sambuc if (ret)
64ebfedea0SLionel Sambuc return ret;
65ebfedea0SLionel Sambuc snprintf (str, len,
66ebfedea0SLionel Sambuc "[ otp-%s %u %s ]",
67ebfedea0SLionel Sambuc ctx->alg->name, ctx->n-1, ctx->seed);
68ebfedea0SLionel Sambuc ctx->challengep = 1;
69ebfedea0SLionel Sambuc return 0;
70ebfedea0SLionel Sambuc }
71