The label_to_str() routine uses the label definitions in the label_encodings file. The encodings file is a text file that is maintained by the security administrator. The file contains site-specific label definitions and constraints. This file is kept in /etc/security/tsol/label_encodings. For information about the label_encodings file, see Solaris Trusted Extensions Label Administration, Compartmented Mode Workstation Labeling: Encodings Format, and the label_encodings(4) man page.