#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 <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/wait.h>
#include <sys/time.h>



void emptyFile(char* name)
{
	FILE* myFile;
	myFile = fopen(name,"w");
	fclose(myFile);
}

int (void)
{
	FILE* myFile;
	char* myString;
	
	myString = malloc(sizeof(char ) * 100);

	
	
	emptyFile(".old.html");
	emptyFile(".new.html");

	
	system("wget -O .old.html -q http://www.cs.rmit.edu./students/");

	while(1)
	{
		
		emptyFile(".new.html");

		
		system("wget -O .new.html -q http://www.cs.rmit.edu./students/");
		
		
		system("diff .old.html .new.html > watch.txt");

		myFile = fopen("watch.txt","r");
		if(myFile != (FILE*) NULL)
		{
			fgets(myString,100,myFile);
			if(strlen(myString) > 0)
			{
				
				
				system("mail @cs.rmit.edu. < watch.txt");
				
				system("cp .new.html .old.html");
			}
		}
		
		sleep(60*60*24);
	}
	
	return 1;
}


