1/* $NetBSD: otp_challenge.c,v 1.1.1.1 2011/04/13 18:15:39 elric Exp $ */ 2 3/* 4 * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan 5 * (Royal Institute of Technology, Stockholm, Sweden). 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 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 * 3. Neither the name of the Institute nor the names of its contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE 27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33 * SUCH DAMAGE. 34 */ 35 36#ifdef HAVE_CONFIG_H 37#include "config.h" 38__RCSID("$NetBSD: otp_challenge.c,v 1.1.1.1 2011/04/13 18:15:39 elric Exp $"); 39#endif 40 41#include "otp_locl.h" 42 43int 44otp_challenge (OtpContext *ctx, char *user, char *str, size_t len) 45{ 46 void *dbm; 47 int ret; 48 49 ctx->challengep = 0; 50 ctx->err = NULL; 51 ctx->user = strdup(user); 52 if (ctx->user == NULL) { 53 ctx->err = "Out of memory"; 54 return -1; 55 } 56 dbm = otp_db_open (); 57 if (dbm == NULL) { 58 ctx->err = "Cannot open database"; 59 return -1; 60 } 61 ret = otp_get (dbm, ctx); 62 otp_db_close (dbm); 63 if (ret) 64 return ret; 65 snprintf (str, len, 66 "[ otp-%s %u %s ]", 67 ctx->alg->name, ctx->n-1, ctx->seed); 68 ctx->challengep = 1; 69 return 0; 70} 71