ec_dissector_ftp.c
上传用户:nilegod
上传日期:2007-01-08
资源大小:220k
文件大小:2k
- /*
- ettercap -- dissector FTP
- Copyright (C) 2001 ALoR <alor@users.sourceforge.net>, NaGA <crwm@freemail.it>
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- */
- #include "include/ec_main.h"
- #include <string.h>
- #include <stdio.h>
- #include <stdlib.h>
- #include <errno.h>
- #include "include/ec_dissector.h"
- #include "include/ec_inet_structures.h"
- #include "include/ec_error.h"
- #ifdef DEBUG
- #include "include/ec_debug.h"
- #endif
- // protos
- FUNC_DISSECTOR(Dissector_ftp);
- // --------------------
- FUNC_DISSECTOR(Dissector_ftp)
- {
- TCP_header *tcp;
- u_char *payload;
- char *fromhere;
- ONLY_CONNECTION;
- tcp = (TCP_header *) data;
- if (ntohs(tcp->source) == 21) return 0; // skip server messages...
- payload = (char *)((int)tcp + tcp->doff * 4);
- if ((fromhere = strstr(payload, "USER")) || (fromhere = strstr(payload, "user")))
- {
- char user[25];
- strncpy(user, fromhere + strlen("USER ") , 25 );
- strcat(data_to_ettercap->user, user);
- #ifdef DEBUG
- Debug_msg("tDissector_FTP USER");
- #endif
- }
- if ((fromhere = strstr(payload, "PASS")) || (fromhere = strstr(payload, "pass")))
- {
- char pass[25];
- strncpy(pass, fromhere + strlen("PASS ") , 25 );
- strcat(data_to_ettercap->pass, pass);
- #ifdef DEBUG
- Debug_msg("tDissector_FTP PASS");
- #endif
- }
- return 0;
- }
- /* EOF */