From aadd7b49515c1bcfaac83a700ece947d3fe13f12 Mon Sep 17 00:00:00 2001
From: paul <paul>
Date: Tue, 17 Jan 2006 17:59:11 +0000
Subject: [zebra] Defensive if_getaddrs bug fix.

2006-01-17 Gunnar Stigen <gunnar.stigen@axxessit.no>

	* if_ioctl.c: (if_getaddrs) Be defensive about assuming
	  that struct ifaddrs will have ifa_addr filled in.
---
 zebra/if_ioctl.c | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'zebra/if_ioctl.c')

diff --git a/zebra/if_ioctl.c b/zebra/if_ioctl.c
index b00a29cd..788184f8 100644
--- a/zebra/if_ioctl.c
+++ b/zebra/if_ioctl.c
@@ -228,6 +228,13 @@ if_getaddrs (void)
 
   for (ifapfree = ifap; ifap; ifap = ifap->ifa_next)
     {
+      if (ifap->ifa_addr == NULL)
+        {
+          zlog_err ("%s: nonsensical ifaddr with NULL ifa_addr, ifname %s",
+                    __func__, (ifap->ifa_name ? ifap->ifa_name : "(null)"));
+          continue;
+        }
+       
       ifp = if_lookup_by_name (ifap->ifa_name);
       if (ifp == NULL)
 	{
-- 
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