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Technical Reference: Communications, Volume 2


About This Book

This book provides information on application programming interfaces for use on system units.

This book is part of the six-volume technical reference set, AIX 5L Version 5.1 Technical Reference, that provides information on system calls, kernel extension calls, and subroutines in the following volumes:


Who Should Use This Book

This book is intended for experienced C programmers. To use the book effectively, you should be familiar with commands, system calls, subroutines, file formats, and special files.


Highlighting

The following highlighting conventions are used in this book:

Bold Identifies commands, subroutines, keywords, files, structures, directories, and other items whose names are predefined by the system. Also identifies graphical objects such as buttons, labels, and icons that the user selects.
Italics Identifies parameters whose actual names or values are to be supplied by the user.
Monospace Identifies examples of specific data values, examples of text similar to what you might see displayed, examples of portions of program code similar to what you might write as a programmer, messages from the system, or information you should actually type.

ISO 9000

ISO 9000 registered quality systems were used in the development and manufacturing of this product.


32-Bit and 64-Bit Support for the UNIX98 Specification

Beginning with Version 4.3, the operating system is designed to support The Open Group's UNIX98 Specification for portability of UNIX-based operating systems. Many new interfaces, and some current ones, have been added or enhanced to meet this specification, making Version 4.3 even more open and portable for applications.

At the same time, compatibility with previous releases of the operating system is preserved. This is accomplished by the creation of a new environment variable, which can be used to set the system environment on a per-system, per-user, or per-process basis.

To determine the proper way to develop a UNIX98-portable application, you may need to refer to The Open Group's UNIX98 Specification, which can be obtained on a CD-ROM by ordering Go Solo 2: The Authorized Guide to Version 2 of the Single UNIX Specification, ISBN: 0-13-575689-8, a book which includes The Open Group's UNIX98 Specification on a CD-ROM.


Related Publications

The following books contain information about or related to application programming interfaces:


Trademarks

The following terms are trademarks of International Business Machines Corporation in the United States, other countries, or both:

UNIX is a registered trademark of The Open Group in the United States and other countries.

Other company, product, or service names may be the trademarks or service marks of others.


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