examples: add example of a DHCP server

As usual, by multiplying directories - "dhcpd_eth0", "dhcpd_wlan1"
you can run many servers on different interfaces.

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 23 insertions, 0 deletions

diff --git a/examples/var_service/dhcpd_if/run b/examples/var_service/dhcpd_if/run
new file mode 100755
index 000000000..de85dece0
--- /dev/null
+++ b/examples/var_service/dhcpd_if/run
@@ -0,0 +1,23 @@
+#!/bin/sh
+
+exec 2>&1
+exec </dev/null
+
+pwd="$PWD"
+
+if="${PWD##*/dhcpd_}"
+
+echo "* Upping iface $if"
+ip link set dev $if up
+
+>>udhcpd.leases
+sed 's/^interface.*$/interface '"$if/" -i udhcpc.conf
+
+echo "* Starting udhcpd"
+exec \
+env - PATH="$PATH" \
+softlimit \
+setuidgid root \
+udhcpd -f -vv udhcpc.conf
+
+exit $?