Nmap Development mailing list archives
Re: IPv6 mass_dns and nsock_connect_udp
From: David Fifield <david () bamsoftware com>
Date: Tue, 2 Dec 2008 18:17:41 -0700
On Tue, Dec 02, 2008 at 07:06:35PM -0600, Kris Katterjohn wrote:
I'm making some progress with a little project to allow mass_rdns to do lookups for IPv6 addresses (async code rather than the system resolver) and to connect to an IPv6 socket on dns servers - I'm using MS Visual C++ EE. I've changed a member of the struct dns_server_s from sockaddr_in to sockaddr_storage and hit a snag after connect_dns_servers() calls nsock_connect_udp(). Previously, connect_dns_servers passed a reference to a dns_server_s sockaddr_in casted to a pointer to a sockaddr along with sizeof(struct sockaddr) which are defined as saddr and sslen respectively in nsock_connect_udp. saddr is then casted to pointer to a sockaddr_storage, but sslen remains unchanged:Instead of passing "sizeof(struct sockaddr)" for sslen, you should pass in the size of the struct you're using. So pass in "sizeof(struct sockaddr_in)" for IPv4 or "sizeof(struct sockaddr_in6)" for IPv6. The current use of sockaddr{} works because both it and sockaddr_in{} should always be the same size (look at the sin_zero field of the latter).
Kris, is this the same thing as at "Ncat: socket bind error on Mac OS X" http://seclists.org/nmap-dev/2008/q3/0168.html If so, then that thread might help, jah. David Fifield _______________________________________________ Sent through the nmap-dev mailing list http://cgi.insecure.org/mailman/listinfo/nmap-dev Archived at http://SecLists.Org
Current thread:
- IPv6 mass_dns and nsock_connect_udp jah (Dec 02)
- Re: IPv6 mass_dns and nsock_connect_udp Kris Katterjohn (Dec 02)
- Re: IPv6 mass_dns and nsock_connect_udp David Fifield (Dec 02)
- Re: IPv6 mass_dns and nsock_connect_udp Kris Katterjohn (Dec 02)
- Re: IPv6 mass_dns and nsock_connect_udp jah (Dec 02)
- Re: IPv6 mass_dns and nsock_connect_udp David Fifield (Dec 02)
- Re: IPv6 mass_dns and nsock_connect_udp Kris Katterjohn (Dec 02)