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midx: avoid negative array index

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nth_midxed_pack_int_id() returns the index of the pack file in the multi
pack index's list of packfiles that the specified object. The index is
returned as a uint32_t. Storing this in an int will make the index
negative if the most significant bit is set. Fix this by using uint32_t
as the rest of the code does. This is unlikely to be a practical problem
as it requires the multipack index to reference 2^31 packfiles.

Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Phillip Wood
2025-05-22 16:55:22 +01:00
committed by Junio C Hamano
parent f874c0ed90
commit 3aa98a61da
1 changed files with 2 additions and 2 deletions
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4
midx-write.c
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@@ -1566,7 +1566,7 @@ int expire_midx_packs(struct repository *r, const char *object_dir, unsigned fla
_("Counting referenced objects"),
m->num_objects);
for (i = 0; i < m->num_objects; i++) {
int pack_int_id = nth_midxed_pack_int_id(m, i);
uint32_t pack_int_id = nth_midxed_pack_int_id(m, i);
count[pack_int_id]++;
display_progress(progress, i + 1);
}
@@ -1697,7 +1697,7 @@ static void fill_included_packs_batch(struct repository *r,
total_size = 0;
for (i = 0; total_size < batch_size && i < m->num_packs; i++) {
int pack_int_id = pack_info[i].pack_int_id;
uint32_t pack_int_id = pack_info[i].pack_int_id;
struct packed_git *p = m->packs[pack_int_id];
uint64_t expected_size;