/**
* Functions to handle ACLs for bacula.
*
+ * Currently we support the following OSes:
+ * - AIX (pre-5.3 and post 5.3 acls, acl_get and aclx_get interface)
+ * - Darwin
+ * - FreeBSD
+ * - HPUX
+ * - IRIX
+ * - Linux
+ * - Solaris (POSIX and NFSv4/ZFS acls)
+ * - Tru64
+ *
+ * Next to OS specific acls we support AFS acls using the pioctl interface.
+ *
* We handle two different types of ACLs: access and default ACLS.
* On most systems that support default ACLs they only apply to directories.
*