1 General
   1.1 Scope
   1.2 Normative References
   1.3 Conformance
   1.4 Test Methods
2 Definitions and General Requirements
   2.1 Conventions
   2.2 Definitions
   2.3 General Concepts
   2.4 Error Numbers
   2.5 Primitive System Data Types
   2.6 Environment Description
   2.7 C Language Definitions
   2.8 Numerical Limits
   2.9 Symbolic Constants
3 Process Primitives
   3.1 Process Creation and Execution
   3.2 Process Termination
   3.3 Signals
   3.4 Timer Operations
4 Process Environment
   4.1 Process Identification
   4.2 User Identification
   4.3 Process Groups
   4.4 System Identification
   4.5 Time
   4.6 Environment Variables
   4.7 Terminal Identification
   4.8 Configurable System Variables
5 Files and Directories
   5.1 Directories
   5.2 Working Directory
   5.3 General File Creation
   5.4 Special File Creation
   5.5 File Removal
   5.6 File Characteristics
   5.7 Configurable Pathname Variables
6 Input and Output Primitives
   6.1 Pipes
   6.2 File Descriptor Manipulation
   6.3 File Descriptor Deassignment
   6.4 Input and Output
   6.5 Control Operations on Files
7 Device- and Class-Specific Functions
   7.1 General Terminal Interface
   7.2 General Terminal Interface Control Functions
8 Language-Specific Services for the C Programming
   Language
   8.1 Referenced C Language Routines
   8.2 C Language Input/Output Functions
   8.3 Other C Language Functions
9 System Databases
   9.1 System Databases
   9.2 Database Access
10 Data Interchange Format
   10.1 Archive/Interchange File Format
Annex A (Informative) Bibliography
Annex B (Informative) Rationale and Notes