From dbee01fe8b0dc1fd0a5de7e9edcbf319f55a4c92 Mon Sep 17 00:00:00 2001
From: gdt <gdt>
Date: Tue, 6 Jan 2004 00:36:51 +0000
Subject: increase buffer size for kernel reads

---
 zebra/kernel_socket.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

(limited to 'zebra/kernel_socket.c')

diff --git a/zebra/kernel_socket.c b/zebra/kernel_socket.c
index e2e25d49..59bb023b 100644
--- a/zebra/kernel_socket.c
+++ b/zebra/kernel_socket.c
@@ -872,6 +872,13 @@ kernel_read (struct thread *thread)
   int nbytes;
   struct rt_msghdr *rtm;
 
+  /*
+   * This must be big enough for any message the kernel might send.
+   * The code previously used RTAX_MAX struct sockaddrs in all cases,
+   * but now that sockaddrs are variable size, this doesn't work
+   * (Solaris has 244 bytes of sdl_data!).  For now, add a struct
+   * sockaddr_dl to the case where it is used.
+   */
   union 
   {
     /* Routing information. */
@@ -885,7 +892,8 @@ kernel_read (struct thread *thread)
     struct
     {
       struct if_msghdr ifm;
-      struct sockaddr addr[RTAX_MAX];
+      struct sockaddr_dl;
+      struct sockaddr addr[RTAX_MAX-1];
     } im;
 
     /* Interface address information. */
-- 
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