src: resolve old macro names that are indirections

Command used:

	git grep -f <(pcregrep -hior
	'(?<=#define\s)IP6?(T_\w+)(?=\s+X\1)' include/)

and then fix all occurrences.

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
diff --git a/libiptc/libip6tc.c b/libiptc/libip6tc.c
index 636466f..9febee3 100644
--- a/libiptc/libip6tc.c
+++ b/libiptc/libip6tc.c
@@ -35,23 +35,23 @@
 #define HOOK_LOCAL_OUT		NF_IP6_LOCAL_OUT
 #define HOOK_POST_ROUTING	NF_IP6_POST_ROUTING
 
-#define STRUCT_ENTRY_TARGET	struct ip6t_entry_target
+#define STRUCT_ENTRY_TARGET	struct xt_entry_target
 #define STRUCT_ENTRY		struct ip6t_entry
-#define STRUCT_ENTRY_MATCH	struct ip6t_entry_match
+#define STRUCT_ENTRY_MATCH	struct xt_entry_match
 #define STRUCT_GETINFO		struct ip6t_getinfo
 #define STRUCT_GET_ENTRIES	struct ip6t_get_entries
-#define STRUCT_COUNTERS		struct ip6t_counters
-#define STRUCT_COUNTERS_INFO	struct ip6t_counters_info
-#define STRUCT_STANDARD_TARGET	struct ip6t_standard_target
+#define STRUCT_COUNTERS		struct xt_counters
+#define STRUCT_COUNTERS_INFO	struct xt_counters_info
+#define STRUCT_STANDARD_TARGET	struct xt_standard_target
 #define STRUCT_REPLACE		struct ip6t_replace
 
 #define ENTRY_ITERATE		IP6T_ENTRY_ITERATE
-#define TABLE_MAXNAMELEN	IP6T_TABLE_MAXNAMELEN
-#define FUNCTION_MAXNAMELEN	IP6T_FUNCTION_MAXNAMELEN
+#define TABLE_MAXNAMELEN	XT_TABLE_MAXNAMELEN
+#define FUNCTION_MAXNAMELEN	XT_FUNCTION_MAXNAMELEN
 
 #define GET_TARGET		ip6t_get_target
 
-#define ERROR_TARGET		IP6T_ERROR_TARGET
+#define ERROR_TARGET		XT_ERROR_TARGET
 #define NUMHOOKS		NF_IP6_NUMHOOKS
 
 #define IPT_CHAINLABEL		xt_chainlabel
@@ -98,14 +98,14 @@
 #define SO_GET_ENTRIES		IP6T_SO_GET_ENTRIES
 #define SO_GET_VERSION		IP6T_SO_GET_VERSION
 
-#define STANDARD_TARGET		IP6T_STANDARD_TARGET
+#define STANDARD_TARGET		XT_STANDARD_TARGET
 #define LABEL_RETURN		IP6TC_LABEL_RETURN
 #define LABEL_ACCEPT		IP6TC_LABEL_ACCEPT
 #define LABEL_DROP		IP6TC_LABEL_DROP
 #define LABEL_QUEUE		IP6TC_LABEL_QUEUE
 
 #define ALIGN			XT_ALIGN
-#define RETURN			IP6T_RETURN
+#define RETURN			XT_RETURN
 
 #include "libiptc.c"
 
@@ -133,7 +133,7 @@
 	size_t i;
 	char buf[40];
 	int len;
-	struct ip6t_entry_target *t;
+	struct xt_entry_target *t;
 	
 	printf("Entry %u (%lu):\n", iptcb_entry2index(handle, e),
 	       iptcb_entry2offset(handle, e));
@@ -182,18 +182,18 @@
 
 	t = ip6t_get_target(e);
 	printf("Target name: `%s' [%u]\n", t->u.user.name, t->u.target_size);
-	if (strcmp(t->u.user.name, IP6T_STANDARD_TARGET) == 0) {
+	if (strcmp(t->u.user.name, XT_STANDARD_TARGET) == 0) {
 		const unsigned char *data = t->data;
 		int pos = *(const int *)data;
 		if (pos < 0)
 			printf("verdict=%s\n",
 			       pos == -NF_ACCEPT-1 ? "NF_ACCEPT"
 			       : pos == -NF_DROP-1 ? "NF_DROP"
-			       : pos == IP6T_RETURN ? "RETURN"
+			       : pos == XT_RETURN ? "RETURN"
 			       : "UNKNOWN");
 		else
 			printf("verdict=%u\n", pos);
-	} else if (strcmp(t->u.user.name, IP6T_ERROR_TARGET) == 0)
+	} else if (strcmp(t->u.user.name, XT_ERROR_TARGET) == 0)
 		printf("error=`%s'\n", t->data);
 
 	printf("\n");
@@ -238,7 +238,7 @@
 	mptr = matchmask + sizeof(STRUCT_ENTRY);
 	if (IP6T_MATCH_ITERATE(a, match_different, a->elems, b->elems, &mptr))
 		return NULL;
-	mptr += XT_ALIGN(sizeof(struct ip6t_entry_target));
+	mptr += XT_ALIGN(sizeof(struct xt_entry_target));
 
 	return mptr;
 }