From 88eb835ad207f579ae4ce21cd46f0b564ebd4748 Mon Sep 17 00:00:00 2001
From: Philip Blundell <Philip.Blundell@pobox.com>
Date: Wed, 10 May 2000 00:25:04 +0000
Subject: Philip Blundell's IPv6 fixes.

---
 include/libiptc/libip6tc.h | 11 ++++++-----
 libiptc/libip6tc.c         | 25 +++++++++++++------------
 2 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/include/libiptc/libip6tc.h b/include/libiptc/libip6tc.h
index d0b87bdf..ad507c8d 100644
--- a/include/libiptc/libip6tc.h
+++ b/include/libiptc/libip6tc.h
@@ -14,6 +14,7 @@ typedef char ip6t_chainlabel[32];
 
 #define IP6TC_LABEL_ACCEPT "ACCEPT"
 #define IP6TC_LABEL_DROP "DROP"
+#define IP6TC_LABEL_QUEUE   "QUEUE"
 #define IP6TC_LABEL_RETURN "RETURN"
 
 /* Transparent handle type. */
@@ -25,9 +26,9 @@ int ip6tc_is_chain(const char *chain, const ip6tc_handle_t handle);
 /* Take a snapshot of the rules. Returns NULL on error. */
 ip6tc_handle_t ip6tc_init(const char *tablename);
 
-/* Iterator functions to run through the chains; prev = NULL means
- first chain. Returns NULL at end. */
-const char *ip6tc_next_chain(const char *prev, ip6tc_handle_t *handle);
+/* Iterator functions to run through the chains.  Returns NULL at end. */
+const char *iptc_first_chain(ip6tc_handle_t *handle);
+const char *ip6tc_next_chain(ip6tc_handle_t *handle);
 
 /* How many rules in this chain? */
 unsigned int ip6tc_num_rules(const char *chain, ip6tc_handle_t *handle);
@@ -38,8 +39,7 @@ const struct ip6t_entry *ip6tc_get_rule(const char *chain,
 					ip6tc_handle_t *handle);
 
 /* Returns a pointer to the target name of this position. */
-const char *ip6tc_get_target(const char *chain,
-			     unsigned int n,
+const char *ip6tc_get_target(const struct ip6t_entry *e,
 			     ip6tc_handle_t *handle);
 
 /* Is this a built-in chain? */
@@ -75,6 +75,7 @@ int ip6tc_append_entry(const ip6t_chainlabel chain,
 /* Delete the first rule in `chain' which matches `fw'. */
 int ip6tc_delete_entry(const ip6t_chainlabel chain,
 		       const struct ip6t_entry *origfw,
+		       unsigned char *matchmask,
 		       ip6tc_handle_t *handle);
 
 /* Delete the rule in position `rulenum' in `chain'. */
diff --git a/libiptc/libip6tc.c b/libiptc/libip6tc.c
index 033693ff..10bcf5a5 100644
--- a/libiptc/libip6tc.c
+++ b/libiptc/libip6tc.c
@@ -97,6 +97,7 @@ typedef unsigned int socklen_t;
 #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			IP6T_ALIGN
 #define RETURN			IP6T_RETURN
@@ -189,8 +190,8 @@ dump_entry(struct ip6t_entry *e, const ip6tc_handle_t handle)
 	IP6T_MATCH_ITERATE(e, print_match);
 
 	t = ip6t_get_target(e);
-	printf("Target name: `%s' [%u]\n", t->u.name, t->target_size);
-	if (strcmp(t->u.name, IP6T_STANDARD_TARGET) == 0) {
+	printf("Target name: `%s' [%u]\n", t->u.user.name, t->u.target_size);
+	if (strcmp(t->u.user.name, IP6T_STANDARD_TARGET) == 0) {
 		int pos = *(int *)t->data;
 		if (pos < 0)
 			printf("verdict=%s\n",
@@ -200,19 +201,19 @@ dump_entry(struct ip6t_entry *e, const ip6tc_handle_t handle)
 			       : "UNKNOWN");
 		else
 			printf("verdict=%u\n", pos);
-	} else if (strcmp(t->u.name, IP6T_ERROR_TARGET) == 0)
+	} else if (strcmp(t->u.user.name, IP6T_ERROR_TARGET) == 0)
 		printf("error=`%s'\n", t->data);
 
 	printf("\n");
 	return 0;
 }
 
-static inline int
-is_same(const struct STRUCT_ENTRY *a, const struct STRUCT_ENTRY *b,
+static int
+is_same(const STRUCT_ENTRY *a, const STRUCT_ENTRY *b,
 	unsigned char *matchmask)
 {
 	unsigned int i;
-	struct STRUCT_ENTRY_TARGET *ta, *tb;
+	STRUCT_ENTRY_TARGET *ta, *tb;
 	unsigned char *mptr;
 
 	/* Always compare head structures: ignore mask here. */
@@ -244,15 +245,15 @@ is_same(const struct STRUCT_ENTRY *a, const struct STRUCT_ENTRY *b,
 	    || a->next_offset != b->next_offset)
 		return 0;
 
-	mptr = matchmask + sizeof(struct STRUCT_ENTRY);
-	if (IP6T_MATCH_ITERATE(a, match_different, a->elems, b->elems))
+	mptr = matchmask + sizeof(STRUCT_ENTRY);
+	if (IP6T_MATCH_ITERATE(a, match_different, a->elems, b->elems, &mptr))
 		return 0;
 
-	ta = GET_TARGET((struct STRUCT_ENTRY *)a);
-	tb = GET_TARGET((struct STRUCT_ENTRY *)b);
-	if (ta->target_size != tb->target_size)
+	ta = GET_TARGET((STRUCT_ENTRY *)a);
+	tb = GET_TARGET((STRUCT_ENTRY *)b);
+	if (ta->u.target_size != tb->u.target_size)
 		return 0;
-	if (strcmp(ta->u.name, tb->u.name) != 0)
+	if (strcmp(ta->u.user.name, tb->u.user.name) != 0)
 		return 0;
 	mptr += sizeof(*ta);
 
-- 
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