dhcpcd: send STOPPED reason to hooks if iface is not up and down.

- Process STOPPED reason in the wpa_supplicant hook to stop it when
the interface goes down.

This has been suggested by Roy Marples (dhcpcd author) in private email.
a final review this seems to DTRT.

srcpkgs/dhcpcd/patches/stop-wpa-on-term.patch

@@ -1,21 +0,0 @@
---- dhcpcd-hooks/10-wpa_supplicant
-+++ dhcpcd-hooks/10-wpa_supplicant
-@@ -114,6 +114,6 @@ then
- 	case "$reason" in
- 	PREINIT)	wpa_supplicant_start;;
- 	RECONFIGURE)	wpa_supplicant_reconfigure;;
--	DEPARTED)	wpa_supplicant_stop;;
-+	DEPARTED|STOP)	wpa_supplicant_stop;;
- 	esac
- fi
-index 5293f9713cbe..8b19ffbcbb1b 100644
---- dhcpcd.c
-+++ dhcpcd.c
-@@ -1049,6 +1049,7 @@ handle_signal1(void *arg)
- 		break;
- 	case SIGTERM:
- 		syslog(LOG_INFO, sigmsg, "TERM", (int)si->pid, "stopping");
-+		do_release = 1;
- 		break;
- 	case SIGALRM:
- 		syslog(LOG_INFO, sigmsg, "ALRM", (int)si->pid, "releasing");

srcpkgs/dhcpcd/patches/wpa-hook-stop.patch

@@ -0,0 +1,46 @@
+--- dhcpcd-run-hooks.in.orig	2014-11-26 16:34:35.000000000 +0100
++++ dhcpcd-run-hooks.in	2014-11-28 11:53:13.712853795 +0100
+@@ -2,13 +2,20 @@
+ # dhcpcd client configuration script 
+ 
+ # Handy variables and functions for our hooks to use
++: ${if_up:=false}
++: ${if_down:=false}
++: ${syslog_debug:=false}
++
+ case "$reason" in
+ 	ROUTERADVERT)
+ 		ifsuffix=":ra";;
+ 	INFORM6|BOUND6|RENEW6|REBIND6|REBOOT6|EXPIRE6|RELEASE6|STOP6)
+ 		ifsuffix=":dhcp6";;
+-	STOPPED) # This reason should never be processed
+-		exit 0;;
++	STOPPED) # Only process this reason if iface is down.
++		if [ "$if_up" != "false" -o "$if_down" = "false" ]; then
++			exit 0
++		fi
++		;;
+ 	*)
+ 		ifsuffix=;;
+ esac
+@@ -22,10 +29,6 @@ signature_end="$signature_base_end $from
+ state_dir=@RUNDIR@/dhcpcd
+ _detected_init=false
+ 
+-: ${if_up:=false}
+-: ${if_down:=false}
+-: ${syslog_debug:=false}
+-
+ # Ensure that all arguments are unique
+ uniqify()
+ {
+--- dhcpcd-hooks/10-wpa_supplicant.orig	2014-11-26 16:34:35.000000000 +0100
++++ dhcpcd-hooks/10-wpa_supplicant	2014-11-28 11:53:48.929217243 +0100
+@@ -114,6 +114,6 @@ then
+ 	case "$reason" in
+ 	PREINIT)	wpa_supplicant_start;;
+ 	RECONFIGURE)	wpa_supplicant_reconfigure;;
+-	DEPARTED)	wpa_supplicant_stop;;
++	DEPARTED|STOPPED)	wpa_supplicant_stop;;
+ 	esac
+ fi

srcpkgs/dhcpcd/template

@@ -1,7 +1,7 @@
 # Template file for 'dhcpcd'
 pkgname=dhcpcd
 version=6.6.4
-revision=2
+revision=3
 lib32disabled=yes
 build_options="systemd"
 build_style=configure