Update dhcpcd to 5.0.2

Changes from 5.0.1 include
 * -n option now starts dhcpcd if not already started
 * 29-lookup-hostname hook installed by default, but skipped in dhcpcd.conf
 * Fix warning about missing dirs if we don't have any existing state
 * Fix compile on some Linux distros re linux/wireless.h

external/bsd/dhcpcd/dist/dhcpcd-hooks/20-resolv.conf

@@ -48,6 +48,7 @@ build_resolv_conf()
 
 	# Assemble resolv.conf using our head and tail files
 	[ -f "$cf" ] && rm -f "$cf"
+	[ -d "$resolv_conf_dir" ] || mkdir -p "$resolv_conf_dir"
 	echo "$header" > "$cf"
 	if [ -f /etc/resolv.conf.head ]; then
 		cat /etc/resolv.conf.head >> "$cf"
@@ -101,9 +102,7 @@ add_resolv_conf()
 	if [ -e "$resolv_conf_dir/$interface" ]; then
 		rm -f "$resolv_conf_dir/$interface"
 	fi
-	if [ ! -d "$resolv_conf_dir" ]; then
-		mkdir -p "$resolv_conf_dir"
-	fi
+	[ -d "$resolv_conf_dir" ] || mkdir -p "$resolv_conf_dir"
 	printf "$conf" > "$resolv_conf_dir/$interface"
 	build_resolv_conf
 }

external/bsd/dhcpcd/dist/dhcpcd-hooks/50-ntp.conf

@@ -11,11 +11,11 @@
 # Detect OpenRC or BSD rc
 # Distributions may want to just have their command here instead of this
 if type rc-service >/dev/null 2>&1 && rc-service --exists ntpd; then
-	ntpd_restart_cmd="rc-service ntpd -- --ifstarted --quiet restart"
+	ntpd_restart_cmd="rc-service ntpd -- -Ds restart"
 elif [ -x /etc/rc.d/ntpd ]; then
-	ntpd_restart_cmd="/etc/rc.d/ntpd status && /etc/rc.d/ntpd restart"
+	ntpd_restart_cmd="/etc/rc.d/ntpd status >/dev/null 2>&1 && /etc/rc.d/ntpd restart"
 elif [ -x /usr/local/etc/rc.d/ntpd ]; then
-	ntpd_restart_cmd="/usr/local/etc/rc.d/ntpd status && /usr/local/etc/rc.d/ntpd restart"
+	ntpd_restart_cmd="/usr/local/etc/rc.d/ntpd status >/dev/null 2>&1 && /usr/local/etc/rc.d/ntpd restart"
 fi
 
 ntp_conf_dir="$state_dir/ntp.conf"
@@ -47,6 +47,7 @@ build_ntp_conf()
 
 	# Merge our config into ntp.conf
 	[ -e "$cf" ] && rm -f "$cf"
+	[ -d "$ntp_conf_dir" ] || mkdir -p "$ntp_conf_dir"
 	remove_markers "$signature_base" "$signature_base_end" \
 		"$ntp_conf" > "$cf"
 	if [ -n "$servers" ]; then

external/bsd/dhcpcd/dist/dhcpcd.c

@@ -1596,31 +1596,31 @@ main(int argc, char **argv)
 		    PACKAGE " will not work correctly unless run as root");
 
 	if (sig != 0) {
-		i = -1;
 		pid = read_pid();
 		if (pid != 0)
 			syslog(LOG_INFO, "sending signal %d to pid %d",
 			    sig, pid);
-
-		if (!pid || (i = kill(pid, sig))) {
+		if (pid == 0 || kill(pid, sig) != 0) {
 			if (sig != SIGALRM)
 				syslog(LOG_ERR, ""PACKAGE" not running");
 			unlink(pidfile);
+			if (sig != SIGALRM)
+				exit(EXIT_FAILURE);
+		} else {
+			if (sig == SIGALRM)
+				exit(EXIT_SUCCESS);
+			/* Spin until it exits */
+			syslog(LOG_INFO, "waiting for pid %d to exit", pid);
+			ts.tv_sec = 0;
+			ts.tv_nsec = 100000000; /* 10th of a second */
+			for(i = 0; i < 100; i++) {
+				nanosleep(&ts, NULL);
+				if (read_pid() == 0)
+					exit(EXIT_SUCCESS);
+			}
+			syslog(LOG_ERR, "pid %d failed to exit", pid);
 			exit(EXIT_FAILURE);
 		}
-		if (sig == SIGALRM)
-			exit(EXIT_SUCCESS);
-		/* Spin until it exits */
-		syslog(LOG_INFO, "waiting for pid %d to exit", pid);
-		ts.tv_sec = 0;
-		ts.tv_nsec = 100000000; /* 10th of a second */
-		for(i = 0; i < 100; i++) {
-			nanosleep(&ts, NULL);
-			if (read_pid() == 0)
-				exit(EXIT_SUCCESS);
-		}
-		syslog(LOG_ERR, "pid %d failed to exit", pid);
-		exit(EXIT_FAILURE);
 	}
 
 	if (!(options & DHCPCD_TEST)) {

external/bsd/dhcpcd/dist/dhcpcd.conf

@@ -13,3 +13,7 @@ option ntp_servers
 # However, a lot of buggy DHCP servers set invalid MTUs so this is not
 # enabled by default.
 #option interface_mtu
+
+# We provide a hook script to lookup the hostname if not set by the DHCP
+# server, but we should not run it by default.
+nohook lookup-hostname