dhcpcd-run-hooks

#!/system/bin/sh
# dhcpcd client configuration script 

# Handy variables and functions for our hooks to use
from="from"
signature_base="# Generated by dhcpcd"
signature="${signature_base} ${from} ${interface}"
signature_base_end="# End of dhcpcd"
signature_end="${signature_base_end} ${from} ${interface}"
state_dir="/data/misc/dhcpcd"

# We source each script into this one so that scripts run earlier can
# remove variables from the environment so later scripts don't see them.
# Thus, the user can create their dhcpcd.enter/exit-hook script to configure
# /etc/resolv.conf how they want and stop the system scripts ever updating it.
for hook in \
	/system/etc/dhcpcd/dhcpcd.enter-hook \
	/system/etc/dhcpcd/dhcpcd-hooks/* \
	/system/etc/dhcpcd/dhcpcd.exit-hook
do
	for skip in ${skip_hooks}; do
		case "${hook}" in
			*/"${skip}")			continue 2;;
			*/[0-9][0-9]"-${skip}")		continue 2;;
			*/[0-9][0-9]"-${skip}.sh")	continue 2;;
		esac
	done
	if ls "${hook}" >/dev/null 2>&1; then
		. "${hook}"
	fi
done