function resolve(hostname,     alias, cmd, ipaddr, line, name) {
    alias = ""
    name = ""
    cmd = "host -4 -t A " hostname
    while ((cmd | getline line) > 0) {
        if (match(line, / is an alias for /)) {
            alias = substr(line, 1, RSTART-1)
        } else if (match(line, / has address /)) {
            name = substr(line, 1, RSTART-1)
            ipaddr = substr(line, RSTART+RLENGTH)
            if (length(alias) > 0) {
                printf "%s %s %s\n", ipaddr, name, alias
            } else {
                printf "%s %s\n", ipaddr, name
            }
        }
    }
    close(cmd)
    return
}

{
    resolve($0)
}