extern tree_node *acl_var_create(uschar *);
extern void acl_var_write(uschar *, uschar *, void *);
extern uschar *auth_b64encode(uschar *, int);
extern tree_node *acl_var_create(uschar *);
extern void acl_var_write(uschar *, uschar *, void *);
extern uschar *auth_b64encode(uschar *, int);