70 lines
2.3 KiB
C
70 lines
2.3 KiB
C
/*
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* Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
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* (Royal Institute of Technology, Stockholm, Sweden).
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the Institute nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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RCSID("$Id: otp_challenge.c,v 1.1.1.1 2000/06/16 18:45:57 thorpej Exp $");
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#endif
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#include "otp_locl.h"
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int
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otp_challenge (OtpContext *ctx, char *user, char *str, size_t len)
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{
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void *dbm;
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int ret;
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ctx->challengep = 0;
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ctx->err = NULL;
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ctx->user = malloc(strlen(user) + 1);
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if (ctx->user == NULL) {
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ctx->err = "Out of memory";
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return -1;
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}
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strcpy(ctx->user, user);
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dbm = otp_db_open ();
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if (dbm == NULL) {
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ctx->err = "Cannot open database";
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return -1;
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}
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ret = otp_get (dbm, ctx);
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otp_db_close (dbm);
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if (ret)
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return ret;
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snprintf (str, len,
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"[ otp-%s %u %s ]",
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ctx->alg->name, ctx->n-1, ctx->seed);
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ctx->challengep = 1;
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return 0;
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}
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