#include <stdio.h>
#include <string.h>
int main(int argc, char *argv[])
{
if (argc!=2) { printf("Usage: crack <password>\n"); }
char charset[63] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
int c1=1;
int c2=1;
int c3=1;
int c4=1;
int c5=1;
int c6=1;
int ch=0;
int cpl=0;
int tries=1;
int cl=strlen(argv[1]);
char ranpass[cl];
char crackpass[cl];
if (cl==1) {strcpy (ranpass, "a");}
if (cl==2) {strcpy (ranpass, "aa");}
if (cl==3) {strcpy (ranpass, "aaa");}
if (cl==4) {strcpy (ranpass, "aaaa");}
if (cl==5) {strcpy (ranpass, "aaaaa");}
if (cl==6) {strcpy (ranpass, "aaaaaa");}
cl--;
strcpy (crackpass, argv[1]);
printf ("\nStarting crack...\n");
while (strcmp(ranpass,crackpass))
{
tries++;
if (c1>62)
{
c1=0;
ranpass[ch+1]=charset [c2];
c2++;
}
if (c2>62)
{
c2=0;
ranpass[ch+2]=charset [c3];
c3++;
}
if (c3>62)
{
c3=0;
ranpass[ch+3]=charset [c4];
c4++;
}
if (c4>62)
{
c4=0;
ranpass[ch+4]=charset [c5];
c5++;
}
if (c5>62)
{
c5=0;
ranpass[ch+5]=charset [c6];
c6++;
}
if (c6>62)
{
c6=0;
}
ranpass[ch]=charset [c1];
c1++;
}
printf ("\nCracking finished.\n");
printf ("It took %d tries to crack.\n", tries);
return 0;
}