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| author | Nguyễn Thái Ngọc Duy <pclouds@gmail.com> | 2011-10-24 17:36:09 +1100 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2011-10-27 11:08:26 -0700 |
| commit | 0de1633783685e9fb1943551217cdda7edbd245b (patch) | |
| tree | 581476c5e6b352769a391071595e625d7443db24 /tree-walk.h | |
| parent | 997a1946a55cafb992c4ba8e5e0795aa73f5a4a9 (diff) | |
| download | git-0de1633783685e9fb1943551217cdda7edbd245b.tar.gz | |
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 <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'tree-walk.h')
| -rw-r--r-- | tree-walk.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/tree-walk.h b/tree-walk.h index 0089581e1d..884d01ac33 100644 --- a/tree-walk.h +++ b/tree-walk.h @@ -20,9 +20,9 @@ static inline const unsigned char *tree_entry_extract(struct tree_desc *desc, co return desc->entry.sha1; } -static inline int tree_entry_len(const char *name, const unsigned char *sha1) +static inline int tree_entry_len(const struct name_entry *ne) { - return (const char *)sha1 - name - 1; + return (const char *)ne->sha1 - ne->path - 1; } void update_tree_entry(struct tree_desc *); @@ -58,7 +58,7 @@ extern void setup_traverse_info(struct traverse_info *info, const char *base); static inline int traverse_path_len(const struct traverse_info *info, const struct name_entry *n) { - return info->pathlen + tree_entry_len(n->path, n->sha1); + return info->pathlen + tree_entry_len(n); } extern int tree_entry_interesting(const struct name_entry *, struct strbuf *, int, const struct pathspec *ps); |