David Wetzel wrote:

> I want to get the IP adress and host name of the remote box. The following  
> is from the current fingerd.c file:
> 
> -------------------------------
> 	if (logging) {
> 		sval = sizeof(ss);
> 		if (getpeername(0, (struct sockaddr *)&ss, &sval) < 0)
> 			err("getpeername: %s", strerror(errno));
> 		(void)getnameinfo((struct sockaddr *)&ss, sval,
> 				hostbuf, sizeof(hostbuf), NULL, 0, 0);
> 		lp = hostbuf;
> -------------------------------
> 
> But getnameinfo does not exist on my netbsd 1.4.1 machine. Is there an other  
> simple way to find this out?

This fragment is ipv6 aware.  The code from the 1.4.1 fingerd has:

        if (logging) {
                sval = sizeof(sin);
                if (getpeername(0, (struct sockaddr *)&sin, &sval) < 0)
                        err("getpeername: %s", strerror(errno));
                if ((hp = gethostbyaddr((char *)&sin.sin_addr.s_addr,
                    sizeof(sin.sin_addr.s_addr), AF_INET)))
                        lp = hp->h_name;
                else
                        lp = inet_ntoa(sin.sin_addr);
        }

Note the usage of gethostbyaddr() instead of getnameinfo().

Simon.