CVSROOT:        /cvs
Module name:    src
Changes by:     [email protected] 2010/03/25 12:37:36

Modified files:
        sbin/dhclient  : dhclient.c 

Log message:
be more strict in check_option().

ISC dhclient had a buffer overflow:
http://www.kb.cert.org/vuls/id/410676

and while our dhclient is not vulnerable to that, it got us looking at
how the subnet mask option is handled.  this limits specific ip
address options to length 4 in conformance with RFC 2132.  discussion
started by william@ and with input from krw@

ok krw@

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