pkg/46939: pkgsrc Quagga patch for incorrect router advertisements

[ott%mirix.org@localhost]

>Number:         46939
>Category:       pkg
>Synopsis:       pkgsrc Quagga patch for incorrect router advertisements
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          change-request
>Submitter-Id:   net
>Arrival-Date:   Tue Sep 11 08:00:00 +0000 2012
>Originator:     Matthias-Christian Ott
>Release:        5.1.2
>Organization:
Universität Leipzig
>Environment:
>Description:
We had some severe problems with router advertisements send by Quagga
[1]. It assumes that sizeof(struct sockaddr_dl.sdl_data) is 12
(interface name and MAC address). An interface name longer that 6
characters truncates the MAC address in the router advertisement. The
issue is known since 2007.

I wrote a patch and we tested it for several weeks.

[1] https://bugzilla.quagga.net/show_bug.cgi?id=737
>How-To-Repeat:
Create an interface with a name longer than 6 characters and verify the MAC 
address in the output of show interface in Quagga.
>Fix:
See https://bugzilla.quagga.net/show_bug.cgi?id=737.