lib/otp/otp.c

   1 /*
   2  * Copyright (c) 1995 - 2000 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #ifdef HAVE_CONFIG_H
  35 #include "config.h"
  36 RCSID("$Id$");
  37 #endif
  38
  39 #include "otp_locl.h"
  40 #include "otp_md.h"
  41
  42 static OtpAlgorithm algorithms[] = {
  43   {OTP_ALG_MD4, "md4", 16, otp_md4_hash, otp_md4_init, otp_md4_next},
  44   {OTP_ALG_MD5, "md5", 16, otp_md5_hash, otp_md5_init, otp_md5_next},
  45   {OTP_ALG_SHA, "sha", 20, otp_sha_hash, otp_sha_init, otp_sha_next}
  46 };
  47
  48 OtpAlgorithm *
  49 otp_find_alg (char *name)
  50 {
  51   int i;
  52
  53   for (i = 0; i < sizeof(algorithms)/sizeof(*algorithms); ++i)
  54     if (strcmp (name, algorithms[i].name) == 0)
  55       return &algorithms[i];
  56   return NULL;
  57 }
  58
  59 char *
  60 otp_error (OtpContext *o)
  61 {
  62   return o->err;
  63 }