/* wu-ftpd eh vulneravel na versao 2.6.0
 * wuscan.c by dRo - dro@dape.net
 * 20/07/2000 - ß²ß  time: 04:43am
 */

#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <netdb.h>

#define PORTA 21
#define MAXDATASIZE 1000

main(int argc, char *argv[]) {

int ss, cc, porta=PORTA, recebe;
char buf[MAXDATASIZE];

struct sockaddr_in servi;
struct hostent *he;

  if(argc != 2) {
    fprintf(stdout,"\nwuscan by dRo - dro@dape.net\n");
    fprintf(stdout,"usage: %s host\n\n",argv[0]);
    exit(0);
}

he = gethostbyname(argv[1]);

  if(he == NULL){
    fprintf(stdout,"\nhost desconhecido !!!\n\n");
    exit(1);
  } 

ss = socket(AF_INET,SOCK_STREAM,0);

  if(ss < 0) {
    fprintf(stdout,"\nfalha ao abrir o socket !!!\n\n");
    exit(0);
  }
   
servi.sin_family = he->h_addrtype;
servi.sin_port = htons(porta);
servi.sin_addr = *((struct in_addr *)he->h_addr);

bzero(&(servi.sin_zero), 8);


    fprintf(stdout,"\nwuscan by dRo - dro@dape.net\n");
  
  if(connect(ss,(struct sockaddr_in *)&servi, sizeof(servi)) == -1) {
    fprintf(stdout,"\nfalha na conexao !!!\n\n");
    close(ss);
  exit();
 }

recebe=recv(ss, buf, MAXDATASIZE, 0);
buf[recebe] = '\0';

close(ss);

if(strstr(buf, "wu-2.6.0")) {
  printf("\n*** VULNERAVEL ***\n\n");
 exit();
}

printf("\nnao vulneravel ...\n\n");

}