This section describes the functions in the various specialized libraries, including service configuration facility (libscf), file access control (libsec), security attributes database (libsecdb), smartcard (libsmartcard), SNMP (libsnmp), system event (libsysevent), interactive command-line input (libtecla), TNF probe control (libtnfctl), universally unique identifier (libuuid), volume management (libvolmgt), and product install registry (libwsreg). Readers of this section should be familiar with C programming language constructs.