[PATCH v3 3/4] commit: allocate array using object_id size

[Patryk Obara]

struct commit_graft aggregates an array of object_id's, which have
size >= GIT_MAX_RAWSZ bytes. This change prevents memory allocation
error when size of object_id is larger than GIT_SHA1_RAWSZ.

Signed-off-by: Patryk Obara <patryk.ob...@gmail.com>
---
 commit.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/commit.c b/commit.c
index 019e733..61528a5 100644
--- a/commit.c
+++ b/commit.c
@@ -149,7 +149,8 @@ struct commit_graft *read_graft_line(struct strbuf *line)
        if ((len + 1) % entry_size)
                goto bad_graft_data;
        i = (len + 1) / entry_size - 1;
-       graft = xmalloc(st_add(sizeof(*graft), st_mult(GIT_SHA1_RAWSZ, i)));
+       graft = xmalloc(st_add(sizeof(*graft),
+                              st_mult(sizeof(struct object_id), i)));
        graft->nr_parent = i;
        if (get_oid_hex(buf, &graft->oid))
                goto bad_graft_data;
-- 
2.9.5