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diff-delta: do not allow delta offset truncation

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Prevent generating delta offsets beyond 4G, as the xdelta used in
the pack format cannot represent such large offset.

Signed-off-by: Martin Koegler <martin.koegler@chello.at>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Martin Koegler 2017-08-10 20:13:09 +02:00 committed by Junio C Hamano
parent 4274c698f4
commit fed1ef9550
1 changed files with 3 additions and 0 deletions
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diff-delta.c
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@ -452,6 +452,9 @@ create_delta(const struct delta_index *index,
moff += msize; moff += msize;
msize = left; msize = left;
if (moff > 0xffffffff)
msize = 0;
if (msize < 4096) { if (msize < 4096) {
int j; int j;
val = 0; val = 0;