Use s6_addr32 to access bits in int6_addr instead of incompatible name

Spotted by Khem Raj <raj.khem@gmail.com>

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/libiptc/libip6tc.c b/libiptc/libip6tc.c
index effbd44..71e262e 100644
--- a/libiptc/libip6tc.c
+++ b/libiptc/libip6tc.c
@@ -113,7 +113,7 @@
 #include "libiptc.c"
 
 #define BIT6(a, l) \
- ((ntohl(a->in6_u.u6_addr32[(l) / 32]) >> (31 - ((l) & 31))) & 1)
+ ((ntohl(a->s6_addr32[(l) / 32]) >> (31 - ((l) & 31))) & 1)
 
 int
 ipv6_prefix_length(const struct in6_addr *a)
diff --git a/xtables.c b/xtables.c
index 743c07b..8241687 100644
--- a/xtables.c
+++ b/xtables.c
@@ -1178,7 +1178,7 @@
 	n = *naddrs;
 	for (i = 0, j = 0; i < n; ++i) {
 		for (k = 0; k < 4; ++k)
-			addrp[j].in6_u.u6_addr32[k] &= maskp->in6_u.u6_addr32[k];
+			addrp[j].s6_addr32[k] &= maskp->s6_addr32[k];
 		++j;
 		for (k = 0; k < j - 1; ++k)
 			if (IN6_ARE_ADDR_EQUAL(&addrp[k], &addrp[j - 1])) {