src/error.c

   1 // error handling for shallot
   2
   3 #include "error.h"
   4 #include "globals.h"
   5 #include "defines.h"
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9
  10 // help - how to use this stuff
  11 void usage(void) {
  12   printf("Usage: shallot [-dmopv] [-f <file>] [-t count] [-e limit] pattern\n"
  13          "  -d        : Daemonize (requires -f)\n"
  14          "  -m        : Monitor mode (incompatible with -f)\n"
  15          "  -o        : Optimize RSA key size to improve SHA-1 hashing speed\n"
  16          "  -p        : Print 'pattern' help and exit (requires pattern)\n"
  17          "  -f <file> : Write output to <file>\n"
  18          "  -t count  : Forces exactly count threads to be spawned\n"
  19          "  -e limit  : Manually define the limit for e\n"
  20          "Version: %s\n", VERSION);
  21   exit(X_WRONG_NUMARGS);
  22 }
  23
  24 void pattern(void) {
  25   printf("base32 alphabet allows letters [a-z] and digits [2-7]\n"
  26          "pattern can be a POSIX-style regular expression, e.g.\n"
  27          "  xxx           must contain 'xxx'\n"
  28          "  bar$          must end with 'bar'\n"
  29          "  ^foo          must begin with 'foo'\n"
  30          "  b[a4]r        may contain leetspeech ;)\n"
  31          "  ^ab|^cd       must begin with 'ab' or 'cd'\n"
  32          "  [a-z]{16}     must contain letters only, no digits\n"
  33          "  ^dusk.*dawn$  must begin with 'dusk' and end with 'dawn'\n");
  34   exit(X_WRONG_NUMARGS);
  35 }
  36
  37 // our big error handling/reporting function
  38 void error(int32_t code) {
  39   switch(code) {
  40     case X_REGEX_COMPILE: {
  41       fprintf(stderr, "ERROR: Bad pattern.  Try again with something else!\n");
  42       break;
  43     }
  44
  45     case X_REGEX_INVALID: {
  46       fprintf(stderr, "ERROR: Pattern cannot contain '-'.\n");
  47       break;
  48     }
  49
  50     case X_SGNL_INT_TERM: {
  51       fprintf(stderr, "\nCaught SIGINT/SIGTERM after %llu tries - exiting.\n",
  52               loop);
  53       break;
  54     }
  55
  56     case X_YOURE_UNLUCKY: {
  57       fprintf(stderr, "\nERROR: You happened to find a bad key - congrats.\n");
  58       break;
  59     }
  60
  61     case X_KEY_GEN_FAILS: {
  62       fprintf(stderr, "ERROR: RSA Key Generation failed.  This is bad.\n");
  63       break;
  64     }
  65
  66     case X_THREAD_CREATE: {
  67       fprintf(stderr, "ERROR: Failed to create thread.  Terminating...\n");
  68       break;
  69     }
  70
  71     case X_BIGNUM_FAILED: {
  72       fprintf(stderr, "ERROR: Failed to covert uint64_t to BIGNUM.\n");
  73       break;
  74     }
  75
  76     case X_INVALID_THRDS: {
  77       fprintf(stderr, "ERROR: Invalid number of threads\n");
  78       break;
  79     }
  80
  81     case X_EXCLUSIVE_OPT: {
  82       fprintf(stderr, "ERROR: -m is incompatible with -f/-v\n");
  83       break;
  84     }
  85
  86     case X_INVALID_E_LIM: {
  87       fprintf(stderr, "ERROR: e limit must be odd, >= %llu, and <= %llu\n",
  88               RSA_PK_EXPONENT, MAXIMUM_E_LIMIT);
  89       break;
  90     }
  91
  92     case X_NEED_FILE_OUT: {
  93       fprintf(stderr, "ERROR: -d requires -f <file>\n");
  94       break;
  95     }
  96
  97     case X_FILE_OPEN_ERR: {
  98       fprintf(stderr, "ERROR: Couldn't open file for output\n");
  99       break;
 100     }
 101
 102     case X_DAEMON_FAILED: {
 103       fprintf(stderr, "ERROR: Daemonization failed\n");
 104       break;
 105     }
 106
 107     case X_OUT_OF_MEMORY: {
 108                         fprintf(stderr, "ERROR: Out of memory error.\n");
 109                         break;
 110                 }
 111
 112 #ifdef BSD
 113     case X_SYSCTL_FAILED: {
 114       fprintf(stderr, "ERROR: sysctlbyname failed.\n");
 115       break;
 116     }
 117
 118 #elif defined(LINUX_PORT)
 119     case X_BAD_FILE_DESC: {
 120       fprintf(stderr, "ERROR: Couldn't open processor information.\n");
 121       break;
 122     }
 123
 124     case X_ABNORMAL_READ: {
 125       fprintf(stderr, "ERROR: Failed reading processor information.\n");
 126       break;
 127     }
 128 #endif
 129
 130     default: {
 131       fprintf(stderr, "Generic error.  You should never see this...\n");
 132       break;
 133     }
 134   } // end switch
 135
 136   exit(code);
 137 }
 138