Cygwin: acls: allow converting empty acl to text

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
2019-03-13 12:06:48 +01:00
parent 111b34bb1b
commit 004d8adfa2
2 changed files with 5 additions and 2 deletions
--- a/winsup/cygwin/sec_acl.cc
+++ b/winsup/cygwin/sec_acl.cc
@@ -1638,8 +1638,8 @@ char *
 __acltotext (aclent_t *aclbufp, int aclcnt, const char *prefix, char separator,
 	     int options)
 {
-  if (!aclbufp || aclcnt < 1 || aclcnt > MAX_ACL_ENTRIES
-      || aclsort32 (aclcnt, 0, aclbufp))
+  if (!aclbufp || aclcnt < 0 || aclcnt > MAX_ACL_ENTRIES
+      || (aclcnt > 0 && aclsort32 (aclcnt, 0, aclbufp)))
    {
      set_errno (EINVAL);
      return NULL;