fix dhcp cleanup

conf/ynh-hotspot

@@ -158,7 +158,7 @@ start_dhcpd() {
         sed "s|__IP4_DNS__|${ip4_dns[${i}]}|g" -i /etc/dnsmasq.dhcpd/dhcpdv4-ssid${i}.conf
         sed "s|__IP4_NAT_PREFIX__|${ip4_nat_prefix[${i}]}|g" -i /etc/dnsmasq.dhcpd/dhcpdv4-ssid${i}.conf
 
-        dnsmasq -C /etc/dnsmasq.dhcpd/dhcpdv4-ssid${i}.conf -p0
+        dnsmasq -C /etc/dnsmasq.dhcpd/dhcpdv4-ssid${i}.conf -p0 -x /run/dnsmasq/dnsmasq-dhcpv4-ssid${i}.pid
     fi
 
     # Run DHCPv6 server
@@ -171,7 +171,7 @@ start_dhcpd() {
         sed "s|__IP6_DNS__|${ip6_dns[${i}]}|g" -i /etc/dnsmasq.dhcpd/dhcpdv6-ssid${i}.conf
         sed "s|__IP6_NET__|${ip6_net[${i}]}|g" -i /etc/dnsmasq.dhcpd/dhcpdv6-ssid${i}.conf
 
-        dnsmasq -C /etc/dnsmasq.dhcpd/dhcpdv6-ssid${i}.conf -p0
+        dnsmasq -C /etc/dnsmasq.dhcpd/dhcpdv6-ssid${i}.conf -p0 -x /run/dnsmasq/dnsmasq-dhcpv6-ssid${i}.pid
     fi
 }
 
@@ -249,13 +249,13 @@ stop_dhcpd() {
     if is_dhcpd6_running ${i}; then
         echo "hotspot${i}: Stop the NDP and DHCPv6 server (dnsmasq)"
         kill $(ps aux | grep 'dhcpdv6-ssid' | grep -v grep | awk '{ print $2 }')
-        rm -f /etc/dnsmasq.d/dhcpdv6-ssid*.conf
+        rm -f /etc/dnsmasq.dhcpd/dhcpdv6-ssid*.conf
     fi
 
     if is_dhcpd4_running ${i}; then
         echo "hotspot${i}: Stop the DHCPv4 server (dnsmasq)"
         kill $(ps aux | grep 'dhcpdv4-ssid' | grep -v grep | awk '{ print $2 }')
-        rm -f /etc/dnsmasq.d/dhcpdv4-ssid*.conf
+        rm -f /etc/dnsmasq.dhcpd/dhcpdv4-ssid*.conf
     fi
 }