NAME
  query_ip_name - get the host name for an object.

SYNOPSIS
  string query_ip_name(mixed arg)

DESCRIPTION
  This sfun will give you a string with the result of a DNS lookup
  for the argument. Valid arguments might be a string, an object
  or nothing at all. In the latter case previous_object() is used. 

Help topics available:

_get_all_obj	_next_obj	_prev_obj	abs	expand_file_name
frnd	get_objects	getopts	implode_nicely	itoa
line_break	load_object	mapping_rusage	query_ip_name	set_light
sgn	short_date	typep