kern/99425: commit references a PR

[dfilter service]

The following reply was made to PR kern/99425; it has been noted by GNATS.

From: dfilter at FreeBSD.ORG (dfilter service)
To: bug-followup at FreeBSD.org
Cc:  
Subject: Re: kern/99425: commit references a PR
Date: Thu, 19 Apr 2007 15:41:10 +0000 (UTC)

 mtm         2007-04-19 15:41:00 UTC
 
   FreeBSD src repository
 
   Modified files:
     sbin/ping6           ping6.c 
   Log:
   Correct two issues in ping6:
   1. The static buffer that ping6(8) uses to hold the control data
      it gets from recvmsg(2) is too small in some cases.
   2. When it prints the extra header information it doesn't do
      any checking to make sure the data it's printing is within
      the bounds of the supplied buffer.
   
   Fix this by:
   o Increasing the buffer to hold extra headers to 10240 bytes (the minimum
     according to RFC3542 sec. 20.1) and allocate it dynamically.
   o In verbose mode, specify a warning if any control data from recvmsg(2)
     was truncated because the buffer was too small.
   o When printing the extra headers make sure not to overrun the buffer
     boundaries.
   
   Reviewed By: mlaier
   PR: kern/99425
   MFC After: 1 month
   
   Revision  Changes    Path
   1.30      +68 -19    src/sbin/ping6/ping6.c
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