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       NULL },
  49     { "count", 'n', arg_integer, &count, "number of keys to print", NULL },
  50     { "hexadecimal", 'h', arg_flag, &hexp, "output in hexadecimal", NULL },
  51     { "hash", 'f', arg_string, &alg_string,
  52       "hash algorithm (md4, md5, or sha)", "algorithm"},
  53     { "version", 0, arg_flag, &version_flag, NULL, NULL },
  54     { "help", 0, arg_flag, &help_flag, NULL, NULL }
  55 };
  56
  57 int num_args = sizeof(args) / sizeof(args[0]);
  58
  59 static void
  60 usage(int code)
  61 {
  62     arg_printusage(args, num_args, NULL, "num seed");
  63     exit(code);
  64 }
  65
  66 static int
  67 print (int argc,
  68        char **argv,
  69        int incount,
  70        OtpAlgorithm *alg,
  71        void (*print_fn)(OtpKey, char *, size_t))
  72 {
  73   char pw[64];
  74   OtpKey key;
  75   int n;
  76   int i;
  77   char *seed;
  78
  79   if (argc != 2)
  80       usage (1);
  81   n = atoi(argv[0]);
  82   seed = argv[1];
  83   if (UI_UTIL_read_pw_string (pw, sizeof(pw), "Pass-phrase: ", 0))
  84     return 1;
  85   alg->init (key, pw, seed);
  86   for (i = 0; i < n; ++i) {
  87     char s[64];
  88
  89     alg->next (key);
  90     if (i >= n - incount) {
  91       (*print_fn)(key, s, sizeof(s));
  92       printf ("%d: %s\n", i + 1, s);
  93     }
  94   }
  95   return 0;
  96 }
  97
  98 int
  99 main (int argc, char **argv)
 100 {
 101     int optidx = 0;
 102     void (*fn)(OtpKey, char *, size_t);
 103     OtpAlgorithm *alg = otp_find_alg (OTP_ALG_DEFAULT);
 104
 105     setprogname (argv[0]);
 106     if(getarg(args, num_args, argc, argv, &optidx))
 107         usage(1);
 108     if(help_flag)
 109         usage(0);
 110     if(version_flag) {
 111         print_version(NULL);
 112         exit(0);
 113     }
 114
 115     if(alg_string) {
 116         alg = otp_find_alg (alg_string);
 117         if (alg == NULL)
 118             errx(1, "Unknown algorithm: %s", alg_string);
 119     }
 120     argc -= optidx;
 121     argv += optidx;
 122
 123     if (hexp) {
 124         if (extendedp)
 125             fn = otp_print_hex_extended;
 126         else
 127             fn = otp_print_hex;
 128     } else {
 129         if (extendedp)
 130             fn = otp_print_stddict_extended;
 131         else
 132             fn = otp_print_stddict;
 133     }
 134
 135     return print (argc, argv, count, alg, fn);
 136 }