From 31759c05252abfcf6f62fa446d979c6c1d38485b Mon Sep 17 00:00:00 2001
From: ume <ume@FreeBSD.org>
Date: Fri, 17 Oct 2003 17:50:09 +0000
Subject: nuke duplicate function and unused function.

Obtained from:	KAME
---
 sys/netinet6/in6.c     | 44 +++-----------------------------------------
 sys/netinet6/in6_var.h |  4 +---
 sys/netinet6/nd6_rtr.c |  2 +-
 3 files changed, 5 insertions(+), 45 deletions(-)

diff --git a/sys/netinet6/in6.c b/sys/netinet6/in6.c
index fd0c46b..d1c5f8c 100644
--- a/sys/netinet6/in6.c
+++ b/sys/netinet6/in6.c
@@ -281,30 +281,6 @@ in6_ifremloop(struct ifaddr *ifa)
 }
 
 int
-in6_ifindex2scopeid(idx)
-	int idx;
-{
-	struct ifnet *ifp;
-	struct ifaddr *ifa;
-	struct sockaddr_in6 *sin6;
-
-	if (idx < 0 || if_index < idx)
-		return -1;
-	ifp = ifnet_byindex(idx);
-
-	TAILQ_FOREACH(ifa, &ifp->if_addrlist, ifa_list)
-	{
-		if (ifa->ifa_addr->sa_family != AF_INET6)
-			continue;
-		sin6 = (struct sockaddr_in6 *)ifa->ifa_addr;
-		if (IN6_IS_ADDR_SITELOCAL(&sin6->sin6_addr))
-			return sin6->sin6_scope_id & 0xffff;
-	}
-
-	return -1;
-}
-
-int
 in6_mask2len(mask, lim0)
 	struct in6_addr *mask;
 	u_char *lim0;
@@ -342,20 +318,6 @@ in6_mask2len(mask, lim0)
 	return x * 8 + y;
 }
 
-void
-in6_len2mask(mask, len)
-	struct in6_addr *mask;
-	int len;
-{
-	int i;
-
-	bzero(mask, sizeof(*mask));
-	for (i = 0; i < len / 8; i++)
-		mask->s6_addr8[i] = 0xff;
-	if (len % 8)
-		mask->s6_addr8[i] = (0xff00 >> (len % 8)) & 0xff;
-}
-
 #define ifa2ia6(ifa)	((struct in6_ifaddr *)(ifa))
 #define ia62ifa(ia6)	(&((ia6)->ia_ifa))
 
@@ -1387,7 +1349,7 @@ in6_lifaddr_ioctl(so, cmd, data, ifp, td)
 		}
 
 		ifra.ifra_prefixmask.sin6_len = sizeof(struct sockaddr_in6);
-		in6_len2mask(&ifra.ifra_prefixmask.sin6_addr, prefixlen);
+		in6_prefixlen2mask(&ifra.ifra_prefixmask.sin6_addr, prefixlen);
 
 		ifra.ifra_flags = iflr->flags & ~IFLR_PREFIX;
 		return in6_control(so, SIOCAIFADDR_IN6, (caddr_t)&ifra, ifp, td);
@@ -1403,7 +1365,7 @@ in6_lifaddr_ioctl(so, cmd, data, ifp, td)
 		bzero(&mask, sizeof(mask));
 		if (iflr->flags & IFLR_PREFIX) {
 			/* lookup a prefix rather than address. */
-			in6_len2mask(&mask, iflr->prefixlen);
+			in6_prefixlen2mask(&mask, iflr->prefixlen);
 
 			sin6 = (struct sockaddr_in6 *)&iflr->addr;
 			bcopy(&sin6->sin6_addr, &match, sizeof(match));
@@ -1423,7 +1385,7 @@ in6_lifaddr_ioctl(so, cmd, data, ifp, td)
 				cmp = 0;	/* XXX */
 			} else {
 				/* on deleting an address, do exact match */
-				in6_len2mask(&mask, 128);
+				in6_prefixlen2mask(&mask, 128);
 				sin6 = (struct sockaddr_in6 *)&iflr->addr;
 				bcopy(&sin6->sin6_addr, &match, sizeof(match));
 
diff --git a/sys/netinet6/in6_var.h b/sys/netinet6/in6_var.h
index 098eb9f..b11b72c 100644
--- a/sys/netinet6/in6_var.h
+++ b/sys/netinet6/in6_var.h
@@ -567,9 +567,7 @@ do { \
 struct	in6_multi *in6_addmulti __P((struct in6_addr *, struct ifnet *,
 	int *));
 void	in6_delmulti __P((struct in6_multi *));
-extern int in6_ifindex2scopeid __P((int));
-extern int in6_mask2len __P((struct in6_addr *, u_char *));
-extern void in6_len2mask __P((struct in6_addr *, int));
+int	in6_mask2len __P((struct in6_addr *, u_char *));
 int	in6_control __P((struct socket *, u_long, caddr_t, struct ifnet *,
 	struct thread *));
 int	in6_update_ifa __P((struct ifnet *, struct in6_aliasreq *,
diff --git a/sys/netinet6/nd6_rtr.c b/sys/netinet6/nd6_rtr.c
index bf50a7c..ec65cb7 100644
--- a/sys/netinet6/nd6_rtr.c
+++ b/sys/netinet6/nd6_rtr.c
@@ -1587,7 +1587,7 @@ in6_ifadd(pr, ifid)
 	struct in6_addr mask;
 	int prefixlen = pr->ndpr_plen;
 
-	in6_len2mask(&mask, prefixlen);
+	in6_prefixlen2mask(&mask, prefixlen);
 
 	/*
 	 * find a link-local address (will be interface ID).
-- 
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