Re: telnetd prompt

[Eric C. Cooper]

In telnetd.c, it does the following (slightly simplified):

    /* Get local host name */
    gethostname(host_name, sizeof(host_name));
    hints.ai_family = PF_UNSPEC;
    hints.ai_flags = AI_CANONNAME;
    getaddrinfo(host_name, 0, &hints, &res);
    strncpy(host_name, res->ai_canonname, sizeof(host_name)-1);

The ai_canonname field gives the "official name of the host",
according to "man getaddrinfo".  HTH.

-- 
Eric C. Cooper          e c c @ c m u . e d u