add ebtablesu scheme, along with general cleanup
diff --git a/extensions/ebt_ip.c b/extensions/ebt_ip.c
index 6d9233e..c81e687 100644
--- a/extensions/ebt_ip.c
+++ b/extensions/ebt_ip.c
@@ -209,7 +209,7 @@
 			ipinfo->invflags |= EBT_IP_PROTO;
 		if (optind > argc)
 			ebt_print_error("Missing IP protocol argument");
-		(unsigned char) i = strtoul(argv[optind - 1], &end, 10);
+		i = strtoul(argv[optind - 1], &end, 10);
 		if (*end != '\0') {
 			struct protoent *pe;
 
diff --git a/extensions/ebt_limit.c b/extensions/ebt_limit.c
index 1c5c32b..6dcd50d 100644
--- a/extensions/ebt_limit.c
+++ b/extensions/ebt_limit.c
@@ -203,15 +203,15 @@
 
 static struct ebt_u_match limit_match =
 {
-	.name		EBT_LIMIT_MATCH,
-	.size		sizeof(struct ebt_limit_info),
-	.help		print_help,
-	.init		init,
-	.parse		parse,
-	.final_check	final_check,
-	.print		print,
-	.compare	compare,
-	.extra_ops	opts,
+	.name		= EBT_LIMIT_MATCH,
+	.size		= sizeof(struct ebt_limit_info),
+	.help		= print_help,
+	.init		= init,
+	.parse		= parse,
+	.final_check	= final_check,
+	.print		= print,
+	.compare	= compare,
+	.extra_ops	= opts,
 };
 
 void _init(void)
diff --git a/extensions/ebt_vlan.c b/extensions/ebt_vlan.c
index b4e1d38..0c94a66 100644
--- a/extensions/ebt_vlan.c
+++ b/extensions/ebt_vlan.c
@@ -141,8 +141,7 @@
 		ebt_check_option(flags, OPT_VLAN_ID);
 		CHECK_INV_FLAG(EBT_VLAN_ID);
 		CHECK_IF_MISSING_VALUE;
-		(unsigned short) local.id =
-		    strtoul(argv[optind - 1], &end, 10);
+		local.id = strtoul(argv[optind - 1], &end, 10);
 		CHECK_RANGE(local.id > 4094 || *end != '\0');
 		vlaninfo->id = local.id;
 		SET_BITMASK(EBT_VLAN_ID);
@@ -152,8 +151,7 @@
 		ebt_check_option(flags, OPT_VLAN_PRIO);
 		CHECK_INV_FLAG(EBT_VLAN_PRIO);
 		CHECK_IF_MISSING_VALUE;
-		(unsigned char) local.prio =
-		    strtoul(argv[optind - 1], &end, 10);
+		local.prio = strtoul(argv[optind - 1], &end, 10);
 		CHECK_RANGE(local.prio >= 8 || *end != '\0');
 		vlaninfo->prio = local.prio;
 		SET_BITMASK(EBT_VLAN_PRIO);
@@ -163,8 +161,7 @@
 		ebt_check_option(flags, OPT_VLAN_ENCAP);
 		CHECK_INV_FLAG(EBT_VLAN_ENCAP);
 		CHECK_IF_MISSING_VALUE;
-		(unsigned short) local.encap =
-		    strtoul(argv[optind - 1], &end, 16);
+		local.encap = strtoul(argv[optind - 1], &end, 16);
 		if (*end != '\0') {
 			ethent = getethertypebyname(argv[optind - 1]);
 			if (ethent == NULL)