path: root/tree-diff.c
diff options
authorNguyễn Thái Ngọc Duy <>2011-10-24 06:36:09 (GMT)
committerJunio C Hamano <>2011-10-27 18:08:26 (GMT)
commit0de1633783685e9fb1943551217cdda7edbd245b (patch)
tree581476c5e6b352769a391071595e625d7443db24 /tree-diff.c
parent997a1946a55cafb992c4ba8e5e0795aa73f5a4a9 (diff)
tree-walk.c: do not leak internal structure in tree_entry_len()
tree_entry_len() does not simply take two random arguments and return a tree length. The two pointers must point to a tree item structure, or struct name_entry. Passing random pointers will return incorrect value. Force callers to pass struct name_entry instead of two pointers (with hope that they don't manually construct struct name_entry themselves) Signed-off-by: Nguyễn Thái Ngọc Duy <> Signed-off-by: Junio C Hamano <>
Diffstat (limited to 'tree-diff.c')
1 files changed, 3 insertions, 3 deletions
diff --git a/tree-diff.c b/tree-diff.c
index b3cc2e4..6782484 100644
--- a/tree-diff.c
+++ b/tree-diff.c
@@ -21,8 +21,8 @@ static int compare_tree_entry(struct tree_desc *t1, struct tree_desc *t2,
sha1 = tree_entry_extract(t1, &path1, &mode1);
sha2 = tree_entry_extract(t2, &path2, &mode2);
- pathlen1 = tree_entry_len(path1, sha1);
- pathlen2 = tree_entry_len(path2, sha2);
+ pathlen1 = tree_entry_len(&t1->entry);
+ pathlen2 = tree_entry_len(&t2->entry);
cmp = base_name_compare(path1, pathlen1, mode1, path2, pathlen2, mode2);
if (cmp < 0) {
show_entry(opt, "-", t1, base);
@@ -85,7 +85,7 @@ static void show_entry(struct diff_options *opt, const char *prefix,
unsigned mode;
const char *path;
const unsigned char *sha1 = tree_entry_extract(desc, &path, &mode);
- int pathlen = tree_entry_len(path, sha1);
+ int pathlen = tree_entry_len(&desc->entry);
int old_baselen = base->len;
strbuf_add(base, path, pathlen);