Fix a bug in the handling of cases where we got a short (or zero)
capture. Zero length captures caused an infinte loop and short captures
probably caused memory corruption and a crash.

Reported by:

Fix a bug in the handling of cases where we got a short (or zero)
capture. Zero length captures caused an infinte loop and short captures
probably caused memory corruption and a crash.

Reported by: many
MFC After: 3 days

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We don't support BPF write filters at this time.

Submitted by: sam

Import the OpenBSD dhclient as shipped with OpenBSD-3.7 (the tag
OPENBSD_3_7).