Unix System Programming

Syllabus :

UNIT – 1

Introduction: UNIX and ANSI Standards: The ANSI C Standard, The

ANSI/ISO C++ Standards, Difference between ANSI C and C++, The POSIX

Standards, The POSIX.1 FIPS Standard, The X/Open Standards.

UNIX and POSIX APIs: The POSIX APIs, The UNIX and POSIX

Development Environment, API Common Characteristics.

UNIT – 2

UNIX Files: File Types, The UNIX and POSIX File System, The UNIX and

POSIX File Attributes, Inodes in UNIX System V, Application Program

Interface to Files, UNIX Kernel Support for Files, Relationship of C Stream

Pointers and File Descriptors, Directory Files, Hard and Symbolic Links.

UNIT – 3

UNIX File APIs: General File APIs, File and Record Locking, Directory

File APIs, Device File APIs, FIFO File APIs, Symbolic Link File APIs,

General File Class, regfile Class for Regular Files, dirfile Class for Directory

Files, FIFO File Class, Device File Class, Symbolic Link File Class, File

Listing Program.

UNIT – 4

UNIX Processes: The Environment of a UNIX Process: Introduction, main

function, Process Termination, Command-Line Arguments, Environment

List, Memory Layout of a C Program, Shared Libraries, Memory Allocation,

49

Environment Variables, setjmp and longjmp Functions, getrlimit, setrlimit

Functions, UNIX Kernel Support for Processes.

PART - B

UNIT – 5

Process Control : Introduction, Process Identifiers, fork, vfork, exit, wait,

waitpid, wait3, wait4 Functions, Race Conditions, exec Functions, Changing

User IDs and Group IDs, Interpreter Files, system Function, Process

Accounting, User Identification, Process Times, I/O Redirection.

Process Relationships: Introduction, Terminal Logins, Network Logins,

Process Groups, Sessions, Controlling Terminal, tcgetpgrp and tcsetpgrp

Functions, Job Control, Shell Execution of Programs, Orphaned Process

Groups.

UNIT – 6

Signals and Daemon Processes: Signals: The UNIX Kernel Support for

Signals, signal, Signal Mask, sigaction, The SIGCHLD Signal and the

waitpid Function, The sigsetjmp and siglongjmp Functions, Kill, Alarm,

Interval Timers, POSIX.lb Timers.

Daemon Processes: Introduction, Daemon Characteristics, Coding Rules,

Error Logging, Client-Server Model.

UNIT – 7

Interprocess Communication – 1: Overview of IPC Methods, Pipes, popen,

pclose Functions, Coprocesses, FIFOs, System V IPC, Message Queues,

Semaphores.

UNIT – 8

Interprocess Communication – 2: Shared Memory, Client-Server

Properties, Stream Pipes, Passing File Descriptors, An Open Server-Version

1, Client-Server Connection Functions.

Text books: 

There are two text books you need to refer

1.     Terrence Chan: UNIX System Programming Using C++, Prentice Hall India, 1999

2.    W.Richard Stevens: Advanced Programming in the UNIX Environment, 2nd Edition,Pearson Education, 2005

Notes:

·         Unit 1,2,5,7