#!/bin/sh
warn() { if [ $# -gt 0 ]; then echo "$@" >&2; else warn "Something is wrong."; fi; }
die() { r=$?; warn "$@"; if [ $r = 0 ]; then exit -1; else exit $r; fi; }

while [ $# -gt 0 ]; do
	case "$1" in 
		--wifi) list_wifi_interfaces=y ;;
		--reload) reload_modules=y ;;
		--quiet) quiet=y ;;
	esac
	shift
done

list_interfaces()
{
	if [ "$list_wifi_interfaces" ]; then
		/sbin/iwconfig 2>/dev/null | grep '^[^ ]'
	else
		/sbin/ip -f link addr | while read _ iface _; do echo ${iface%:*}; done
	fi
}

list_interfaces |
while read iface _; do
	for f in /sys/class/net/$iface/device/driver/module/drivers/*; do
		test -L "$f" || continue
		module=$(basename "$(readlink "$f")")
		if [ "$reload_modules" ]; then
			modprobe -r "$module"
			modprobe "$module"
		fi
		if ! [ "$quiet" ]; then
			echo "$module"
		fi
	done
done