Kiyoshi Hayakawa / lwip

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Dependents:   EthernetInterface

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Diff: core/netif.c

Revision:
12:4b3f6f8b92d2
Parent:
0:51ac1d130fd4
--- a/core/netif.c	Thu May 30 17:11:58 2013 +0100
+++ b/core/netif.c	Mon Aug 19 18:37:54 2013 +0300
@@ -318,6 +318,12 @@
 void
 netif_set_ipaddr(struct netif *netif, ip_addr_t *ipaddr)
 {
+  /* Protect against dereferencing NULL pointers by
+     treating like ANY, as does ip_addr_set() */
+  if (!ipaddr) {
+    ipaddr = IP_ADDR_ANY;
+  }
+  
   /* TODO: Handling of obsolete pcbs */
   /* See:  http://mail.gnu.org/archive/html/lwip-users/2003-03/msg00118.html */
 #if LWIP_TCP