c/brute.c

   1 //BruteForCer - A permutation sequence generator
   2 //Harvie 2oo7
   3 /*
   4  * I hope, that this can show you that BF is the most suxing idea.
   5  * You can use GREP pipe, if you know part of password.
   6  * Brutforcing is the only way to be the real hacker. (Please don't pwn me ;)
   7  * More info? UTFS!
   8  */
   9
  10 #include <stdio.h>
  11
  12 int main() {
  13
  14         int minlen = 4;
  15         int maxlen = 4; //Lenght of string
  16         char full = 0; //0=Alphabet, 1=All possibilities
  17         unsigned char alpha[] = "1234"; //"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890 "; //Alphabet
  18
  19         unsigned int alphmax = sizeof(alpha)-1;
  20         char loop;
  21         int i, pos, len;
  22         unsigned char comb[maxlen];
  23
  24
  25         for(len=minlen;len<=maxlen;len++) {
  26
  27
  28         //Fill string with NULL bytes
  29         for(i=0;i<len;i++) {
  30                 comb[i] = 0;
  31                 }
  32
  33         loop = 1;
  34         while(loop) {
  35
  36                 //Make next string
  37                 pos = 0;
  38                 comb[pos]++; if(!full && comb[pos]>=alphmax) comb[pos] = 0;
  39                 while(comb[pos]==0) {
  40                         pos++;
  41                         if(pos >= len) loop = 0;
  42                         comb[pos]++; if(!full && comb[pos]>=alphmax) comb[pos] = 0;
  43                 }
  44
  45                 //Print string in reversed order
  46                 for(i=(len-1);i>=0;i--) {
  47                         if(full) {
  48                                 putc(comb[i], stdout);
  49                         } else {
  50                                 if(comb[i]<alphmax && alpha[comb[i]] != 0) putc(alpha[comb[i]], stdout);
  51                         }
  52                 }
  53                 putc('\n', stdout);
  54         }
  55
  56
  57         }
  58
  59 }