appl/otp/otpprint.c

   1 /*
   2  * Copyright (c) 1995-1999 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 #include "otp_locl.h"
  35 #include <getarg.h>
  36
  37 RCSID("$Id$");
  38
  39 static int extendedp;
  40 static int count = 10;
  41 static int hexp;
  42 static char* alg_string;
  43 static int version_flag;
  44 static int help_flag;
  45
  46 struct getargs args[] = {
  47     { "extended", 'e', arg_flag, &extendedp, "print keys in extended format" },
  48     { "count", 'n', arg_integer, &count, "number of keys to print" },
  49     { "hexadecimal", 'h', arg_flag, &hexp, "output in hexadecimal" },
  50     { "hash", 'f', arg_string, &alg_string,
  51       "hash algorithm (md4, md5, or sha)", "algorithm"},
  52     { "version", 0, arg_flag, &version_flag },
  53     { "help", 0, arg_flag, &help_flag }
  54 };
  55
  56 int num_args = sizeof(args) / sizeof(args[0]);
  57
  58 static void
  59 usage(int code)
  60 {
  61     arg_printusage(args, num_args, NULL, "num seed");
  62     exit(code);
  63 }
  64
  65 static int
  66 print (int argc,
  67        char **argv,
  68        int count,
  69        OtpAlgorithm *alg,
  70        void (*print_fn)(OtpKey, char *, size_t))
  71 {
  72   char pw[64];
  73   OtpKey key;
  74   int n;
  75   int i;
  76   char *seed;
  77
  78   if (argc != 2)
  79       usage (1);
  80   n = atoi(argv[0]);
  81   seed = argv[1];
  82   if (UI_UTIL_read_pw_string (pw, sizeof(pw), "Pass-phrase: ", 0))
  83     return 1;
  84   alg->init (key, pw, seed);
  85   for (i = 0; i < n; ++i) {
  86     char s[64];
  87
  88     alg->next (key);
  89     if (i >= n - count) {
  90       (*print_fn)(key, s, sizeof(s));
  91       printf ("%d: %s\n", i + 1, s);
  92     }
  93   }
  94   return 0;
  95 }
  96
  97 int
  98 main (int argc, char **argv)
  99 {
 100     int optind = 0;
 101     void (*fn)(OtpKey, char *, size_t);
 102     OtpAlgorithm *alg = otp_find_alg (OTP_ALG_DEFAULT);
 103
 104     setprogname (argv[0]);
 105     if(getarg(args, num_args, argc, argv, &optind))
 106         usage(1);
 107     if(help_flag)
 108         usage(0);
 109     if(version_flag) {
 110         print_version(NULL);
 111         exit(0);
 112     }
 113
 114     if(alg_string) {
 115         alg = otp_find_alg (alg_string);
 116         if (alg == NULL)
 117             errx(1, "Unknown algorithm: %s", alg_string);
 118     }
 119     argc -= optind;
 120     argv += optind;
 121
 122     if (hexp) {
 123         if (extendedp)
 124             fn = otp_print_hex_extended;
 125         else
 126             fn = otp_print_hex;
 127     } else {
 128         if (extendedp)
 129             fn = otp_print_stddict_extended;
 130         else
 131             fn = otp_print_stddict;
 132     }
 133
 134     return print (argc, argv, count, alg, fn);
 135 }