owipcalc: remove clone in cidr_contains6

[openwrt/openwrt.git] / package / network / utils / owipcalc / src / owipcalc.c

diff --git a/package/network/utils/owipcalc/src/owipcalc.c b/package/network/utils/owipcalc/src/owipcalc.c
index c4df5c7450f4730396383b28d6aea0cbf523c244..5ed609f1580e264cb657d20c32b72fc460641166 100644 (file)
--- a/package/network/utils/owipcalc/src/owipcalc.c
+++ b/package/network/utils/owipcalc/src/owipcalc.c
@@ -527,18 +527,17 @@ static bool cidr_network6(struct cidr *a)
 
 static bool cidr_contains6(struct cidr *a, struct cidr *b)
 {
-       struct cidr *n = cidr_clone(a);
-       struct in6_addr *x = &n->addr.v6;
+       struct in6_addr *x = &a->addr.v6;
        struct in6_addr *y = &b->addr.v6;
-       uint8_t i = (128 - n->prefix) / 8;
-       uint8_t m = ~((1 << ((128 - n->prefix) % 8)) - 1);
+       uint8_t i = (128 - a->prefix) / 8;
+       uint8_t m = ~((1 << ((128 - a->prefix) % 8)) - 1);
        uint8_t net1 = x->s6_addr[15-i] & m;
        uint8_t net2 = y->s6_addr[15-i] & m;
 
        if (printed)
                qprintf(" ");
 
-       if ((b->prefix >= n->prefix) && (net1 == net2) &&
+       if ((b->prefix >= a->prefix) && (net1 == net2) &&
            ((i == 15) || !memcmp(&x->s6_addr, &y->s6_addr, 15-i)))
        {
                qprintf("1");