#compdef arp

local state line expl curcontext="$curcontext"

_arguments -C \
 '(-d -s -f 1)-a[show entries for all or specified hosts]:host:->hostintable' \
 '(-a -s -f 1)-d[delete entry from table]:host:->hostintable' \
 '(-a -d -f 1)-s[create an arp entry]:host:_hosts:ethernet address::*:option:(temp trail pub)' \
 '(-a -d -s 1)-f[read multiple entries from file]:file:_files' \
 '(-a)1:host:->hostintable'

[[ "$state" = hostintable ]] &&
  _wanted hosts expl 'host' compadd ${${${(f)"$(${words[1]} -a)"}##[ ?(]#}%%[ )]*}