treewide: rework code to get rid of fixed IPv6 address arrays

[project/odhcpd.git] / src / ndp.c

diff --git a/src/ndp.c b/src/ndp.c
index b686262..8488fc5 100644 (file)
--- a/src/ndp.c
+++ b/src/ndp.c
@@ -352,9 +352,9 @@ static int prefixcmp(const void *va, const void *vb)
 // Check address update
 static void check_addr_updates(struct interface *iface)
 {
-       struct odhcpd_ipaddr addr[RELAYD_MAX_ADDRS] = {{IN6ADDR_ANY_INIT, 0, 0, 0, 0}};
+       struct odhcpd_ipaddr *addr = NULL;
        time_t now = odhcpd_time();
-       ssize_t len = odhcpd_get_interface_addresses(iface->ifindex, addr, ARRAY_SIZE(addr));
+       ssize_t len = odhcpd_get_interface_addresses(iface->ifindex, &addr);
 
        if (len < 0)
                return;
@@ -380,7 +380,8 @@ static void check_addr_updates(struct interface *iface)
        if (change)
                dhcpv6_ia_preupdate(iface);
 
-       memcpy(iface->ia_addr, addr, len * sizeof(*addr));
+       free(iface->ia_addr);
+       iface->ia_addr = addr;
        iface->ia_addr_len = len;
 
        if (change)