Nmap Development mailing list archives
netcat : program bug
From: "Julien Bouquillon [revolunet]" <julien () bouquillon com>
Date: Mon, 5 Apr 2010 17:54:49 +0200
Hi First ,thanx for your ncat great code; broker/chat modes are really handy ;:) I dont know if this is a bug or a bad use of ncat from me : server# ncat -klvvv 30000 client1# telnet server 30000 # ok client2# telnet server 30000 # ok client3# telnet server 30000 # ok if client2 closes the connexion, then client3 closes his connection, i get a "program bug": (i use windows telnet as client for my tests) Ncat: Version 5.21 ( http://nmap.org/ncat ) Ncat: Listening on 0.0.0.0:30000 NCAT DEBUG: Initialized fdlist with 102 maxfds NCAT DEBUG: Added fd 3 to list, nfds 1, maxfd 3 NCAT DEBUG: Added fd 0 to list, nfds 2, maxfd 3 NCAT DEBUG: Initialized fdlist with 100 maxfds NCAT DEBUG: selecting, fdmax 3 NCAT DEBUG: select returned 1 fds ready NCAT DEBUG: fd 3 is ready Ncat: Connection from 93.0.2.144. NCAT DEBUG: Added fd 4 to list, nfds 3, maxfd 4 NCAT DEBUG: Added fd 4 to list, nfds 1, maxfd 4 NCAT DEBUG: selecting, fdmax 4 NCAT DEBUG: select returned 1 fds ready NCAT DEBUG: fd 3 is ready Ncat: Connection from 93.0.2.144. NCAT DEBUG: Added fd 5 to list, nfds 4, maxfd 5 NCAT DEBUG: Added fd 5 to list, nfds 2, maxfd 5 NCAT DEBUG: selecting, fdmax 5 NCAT DEBUG: select returned 1 fds ready NCAT DEBUG: fd 3 is ready Ncat: Connection from 93.0.2.144. NCAT DEBUG: Added fd 6 to list, nfds 5, maxfd 6 NCAT DEBUG: Added fd 6 to list, nfds 3, maxfd 6 NCAT DEBUG: selecting, fdmax 6 NCAT DEBUG: select returned 1 fds ready NCAT DEBUG: fd 5 is ready NCAT DEBUG: Closing connection. NCAT DEBUG: Swapping fd[3] (5) with fd[4] (6) NCAT DEBUG: Removed fd 5 from list, nfds 4, maxfd 6 NCAT DEBUG: Swapping fd[2] (6) with fd[2] (6) NCAT DEBUG: Removed fd 6 from list, nfds 2, maxfd 5 NCAT DEBUG: selecting, fdmax 6 NCAT DEBUG: select returned 1 fds ready NCAT DEBUG: fd 6 is ready NCAT DEBUG: Closing connection. NCAT DEBUG: Swapping fd[3] (6) with fd[3] (6) NCAT DEBUG: Removed fd 6 from list, nfds 3, maxfd 4 Ncat: Program bug: fd (6) not on list. QUITTING. any idea how to prevent this ? Thanks Julien _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://seclists.org/nmap-dev/
Current thread:
- netcat : program bug Julien Bouquillon [revolunet] (Apr 06)
- Re: netcat : program bug David Fifield (Apr 06)
- Re: netcat : program bug Julien Bouquillon [revolunet] (Apr 07)
- Re: netcat : program bug David Fifield (Apr 06)