Re: kern/38791 (routing socket event header not cleared)

[jtc%acorntoolworks.com@localhost (J.T. Conklin)]

The following reply was made to PR kern/38791; it has been noted by GNATS.

From: jtc%acorntoolworks.com@localhost (J.T. Conklin)
To: Michael van Elst <mlelstv%serpens.de@localhost>
Cc: gnats-bugs%NetBSD.org@localhost, kern-bug-people%NetBSD.org@localhost, 
netbsd-bugs%NetBSD.org@localhost,
        gnats-admin%NetBSD.org@localhost, mlelstv%NetBSD.org@localhost
Subject: Re: kern/38791 (routing socket event header not cleared)
Date: Mon, 02 Jun 2008 12:21:12 -0700

 Michael van Elst <mlelstv%serpens.de@localhost> writes:
 > Let me clarify this: by erasing the message you erase the contents
 > of the message that has been copied there two lines above with
 > m_copyback().
 >
 > E.g. in case of RTM_IFINFO messages you overwrite the whole message
 > with zeroes and thus break ifwatchd.
 
 I see, I missed that difference between the code documented in
 TCP/Illustrated and the NetBSD-current sources.  The original code did
 not take the data and datalen parameters, so there was nothing to over-
 write.  In the short term, I suggest reverting the change.  I'll take a
 second look later this evening.
 
     --jtc
 
 -- 
 J.T. Conklin