rerere: don't segfault on failure to open rr-cache

diff --git a/entry.c b/entry.c
index f276cf3b88ea40cb4e6d03c623ce27cb0204c63e..06d24f14c6ba9401637aebfb11659ae747796c06 100644 (file)
--- a/entry.c
+++ b/entry.c
@@ -177,11 +177,15 @@ static int write_entry(struct cache_entry *ce, char *path, const struct checkout
 
 /*
  * This is like 'lstat()', except it refuses to follow symlinks
- * in the path.
+ * in the path, after skipping "skiplen".
  */
-int check_path(const char *path, int len, struct stat *st)
+int check_path(const char *path, int len, struct stat *st, int skiplen)
 {
-       if (has_symlink_leading_path(path, len)) {
+       const char *slash = path + len;
+
+       while (path < slash && *slash != '/')
+               slash--;
+       if (!has_dirs_only_path(path, slash - path, skiplen)) {
                errno = ENOENT;
                return -1;
        }
@@ -201,7 +205,7 @@ int checkout_entry(struct cache_entry *ce, const struct checkout *state, char *t
        strcpy(path + len, ce->name);
        len += ce_namelen(ce);
 
-       if (!check_path(path, len, &st)) {
+       if (!check_path(path, len, &st, state->base_dir_len)) {
                unsigned changed = ce_match_stat(ce, &st, CE_MATCH_IGNORE_VALID);
                if (!changed)
                        return 0;