sha1_file: guard against invalid loose subdirectory numbers
Loose object subdirectories have hexadecimal names based on the first
byte of the hash of contained objects, thus their numerical
representation can range from 0 (0x00) to 255 (0xff). Change the type
of the corresponding variable in for_each_file_in_obj_subdir() and
associated callback functions to unsigned int and add a range check.
Suggested-by: Jeff King <peff@peff.net>
Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/builtin/prune.c b/builtin/prune.c
index 42633e0..ea208c9 100644
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -68,7 +68,7 @@ static int prune_cruft(const char *basename, const char *path, void *data)
return 0;
}
-static int prune_subdir(int nr, const char *path, void *data)
+static int prune_subdir(unsigned int nr, const char *path, void *data)
{
if (!show_only)
rmdir(path);
