Thread (1 message) 1 message, 1 author, 2016-06-15

Re: [PATCH 4/4] bundle: keep around names passed to add_pending_object()

From: Thomas Rast <hidden>
Date: 2016-06-15 22:53:11

Junio C Hamano [off-list ref] writes:
Thomas Rast [off-list ref] writes:
quoted
The 'name' field passed to add_pending_object() is used to later
deduplicate in object_array_remove_duplicates().

git-bundle had a bug in this area since 18449ab (git-bundle: avoid
packing objects which are in the prerequisites, 2007-03-08): it passed
the name of each boundary object in a static buffer.  In other words,
all that object_array_remove_duplicates() saw was the name of the
*last* added boundary object.
Ouch.
Actually, I just noticed that object_array_remove_duplicates() is much
newer than 18449ab, from b2a6d1c (bundle: allow the same ref to be given
more than once, 2009-01-17).  However it did pass in the same buffer all
the time starting from 18449ab, which is a bug waiting to happen (and
perhaps NULL would have been more appropriate).

Archaeology sure is fun.

-- 
Thomas Rast
trast@{inf,student}.ethz.ch
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