[PATCH v2 4/9] dir: add method to check if a dir_entry lexically contains another
From: Samuel Lijin <hidden>
Date: 2017-05-06 18:49:40
Subsystem:
the rest · Maintainer:
Linus Torvalds
Introduce a method that allows us to check if one dir_entry corresponds to a path which contains the path corresponding to another dir_entry. Signed-off-by: Samuel Lijin <redacted> --- dir.c | 8 ++++++++ 1 file changed, 8 insertions(+)
diff --git a/dir.c b/dir.c
index 6bd0350e9..4739087f4 100644
--- a/dir.c
+++ b/dir.c@@ -1852,6 +1852,14 @@ static int cmp_name(const void *p1, const void *p2) return name_compare(e1->name, e1->len, e2->name, e2->len); } +/* check if *out lexically contains *in */ +static int check_contains(const struct dir_entry *out, const struct dir_entry *in) +{ + return (out->len < in->len) && + (out->name[out->len - 1] == '/') && + !memcmp(out->name, in->name, out->len); +} + static int treat_leading_path(struct dir_struct *dir, const char *path, int len, const struct pathspec *pathspec)
--
2.12.2