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netif_add: avoid passing NULL pointers to subsequent functions (reported by Axel Lin)
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@ -281,6 +281,16 @@ netif_add(struct netif *netif,
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LWIP_ASSERT("No init function given", init != NULL);
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if (ipaddr == NULL) {
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ipaddr = ip_2_ip4(IP4_ADDR_ANY);
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}
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if (netmask == NULL) {
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netmask = ip_2_ip4(IP4_ADDR_ANY);
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}
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if (gw == NULL) {
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gw = ip_2_ip4(IP4_ADDR_ANY);
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}
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/* reset new interface configuration state */
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#if LWIP_IPV4
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ip_addr_set_zero_ip4(&netif->ip_addr);
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