#!/usr/bin/sh
# compat: +ash +bash +dash +hush +ksh +mksh +oksh +osh +posh +yash +zsh

sortip() { ### @- sort lines numerically by IPv4 segments.
    LC_ALL=C sort -t . -k 1,1n -k 2,2n -k 3,3n -k 4,4n "$@"
}

[ -n "${preload+-}" ] || sortip "$@"