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#autoload
# This can be called independently of completion. It returns
# arrays net_intf_disp and net_intf_list which the caller should
# make local.
local sep list
# Make sure needed tools are in the path.
local PATH=$PATH
PATH=/sbin:$PATH
case $OSTYPE in
aix*)
net_intf_list=( ${(f)"$(lsdev -C -c if -F 'name:description')"} )
if zstyle -T ":completion:${curcontext}" verbose; then
zstyle -s ":completion:${curcontext}:" list-separator sep || sep=--
zformat -a list " $sep " "$net_intf_list[@]"
net_intf_disp=(-ld list)
fi
;;
darwin*|freebsd*|dragonfly*) net_intf_list=( $(ifconfig -l) ) ;;
irix*) net_intf_list=( ${${${(f)"$(/usr/etc/netstat -i)"}%% *}[2,-1]} ) ;;
*linux*)
if (( $+commands[ip] )); then
net_intf_list=( ${${(m)${(f)"$(ip -o link)"}#*: }%%: *} )
fi
;&
*)
if [[ ${#net_intf_list} -eq 0 ]]; then
# linux's deprecated ifconfig may truncate long interface names
net_intf_list=( $(ifconfig -a 2>/dev/null | sed -n 's/^\([^ :]*\).*/\1/p') )
if [[ -d /proc/sys/net/ipv4/conf ]]; then
# On linux we used to use the following as the default.
# However, we now use ip or ifconfig since it finds additional devices such
# as tunnels. So only do this if that didn't work.
net_intf_list=( /proc/sys/net/ipv4/conf/*~*(all|default)(N:t) )
fi
fi
;;
esac
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