Internet.pdf

BridgeVIEW ™

and LabVIEW ™

Internet Developers Toolkit for G

Reference Manual

Internet Developers Toolkit for G

June 1998 Edition

Part Number 321392B-01

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Important Information

Warranty

The media on which you receive National Instruments software are warranted not to fail to execute programming

instructions, due to defects in materials and workmanship, for a period of 90 days from date of shipment, as evidenced

by receipts or other documentation. National Instruments will, at its option, repair or replace software media that do not

execute programming instructions if National Instruments receives notice of such defects during the warranty period.

National Instruments does not warrant that the operation of the software shall be uninterrupted or error free.

A Return Material Authorization (RMA) number must be obtained from the factory and clearly marked on the outside

of the package before any equipment will be accepted for warranty work. National Instruments will pay the shipping costs

of returning to the owner parts which are covered by warranty.

National Instruments believes that the information in this manual is accurate. The document has been carefully reviewed

for technical accuracy. In the event that technical or typographical errors exist, National Instruments reserves the right to

make changes to subsequent editions of this document without prior notice to holders of this edition. The reader should

consult National Instruments if errors are suspected. In no event shall National Instruments be liable for any damages

arising out of or related to this document or the information contained in it.

E XCEPT AS SPECIFIED HEREIN , N ATIONAL I NSTRUMENTS MAKES NO WARRANTIES , EXPRESS OR IMPLIED , AND SPECIFICALLY DISCLAIMS

ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE . C USTOMER ’ S RIGHT TO RECOVER DAMAGES CAUSED

BY FAULT OR NEGLIGENCE ON THE PART OF N ATIONAL I NSTRUMENTS SHALL BE LIMITED TO THE AMOUNT THERETOFORE PAID BY THE

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OR INCIDENTAL OR CONSEQUENTIAL DAMAGES , EVEN IF ADVISED OF THE POSSIBILITY THEREOF . This limitation of the liability of

National Instruments will apply regardless of the form of action, whether in contract or tort, including negligence.

Any action against National Instruments must be brought within one year after the cause of action accrues. National

Instruments shall not be liable for any delay in performance due to causes beyond its reasonable control. The warranty

provided herein does not cover damages, defects, malfunctions, or service failures caused by owner’s failure to follow

the National Instruments installation, operation, or maintenance instructions; owner’s modification of the product;

owner’s abuse, misuse, or negligent acts; and power failure or surges, fire, flood, accident, actions of third parties,

or other events outside reasonable control.

Under the copyright laws, this publication may not be reproduced or transmitted in any form, electronic or mechanical,

including photocopying, recording, storing in an information retrieval system, or translating, in whole or in part, without

the prior written consent of National Instruments Corporation.

Trademarks

BridgeVIEW ™ , LabVIEW ™ , natinst.com ™ , National Instruments ™ , and The Software is the Instrument ™ are trademarks

of National Instruments Corporation.

Product and company names listed are trademarks or trade names of their respective companies.

WARNING REGARDING MEDICAL AND CLINICAL USE OF NATIONAL INSTRUMENTS PRODUCTS

National Instruments products are not designed with components and testing intended to ensure a level of reliability

suitable for use in treatment and diagnosis of humans. Applications of National Instruments products involving medical

or clinical treatment can create a potential for accidental injury caused by product failure, or by errors on the part of the

user or application designer. Any use or application of National Instruments products for or involving medical or clinical

treatment must be performed by properly trained and qualified medical personnel, and all traditional medical safeguards,

equipment, and procedures that are appropriate in the particular situation to prevent serious injury or death should always

continue to be used when National Instruments products are being used. National Instruments products are NOT intended

to be a substitute for any form of established process, procedure, or equipment used to monitor or safeguard human health

and safety in medical or clinical treatment.

Contents

About This Manual

Organization of This Manual .........................................................................................xi

Conventions Used in This Manual.................................................................................xii

Related Documentation..................................................................................................xiii

Customer Communication .............................................................................................xiii

Chapter 1

Introduction

What Is the Internet Developers Toolkit for G? ............................................................1-1

What Can I Do with the Toolkit?...................................................................................1-1

Send E-mail and Data Files .............................................................................1-2

Convert VIs to Internet Applications ..............................................................1-2

Build CGI Programs in G ................................................................................1-2

Chapter 2

Configuration

How Do I Configure My Toolkit? .................................................................................2-1

How Do I Configure My Toolkit VIs? ..........................................................................2-2

[ftp] Configuration...........................................................................................2-2

[smtp] Configuration .......................................................................................2-2

[http] Configuration.........................................................................................2-3

Chapter 3

FTP VIs

What Is FTP? .................................................................................................................3-1

What Are FTP VIs? .......................................................................................................3-1

Low-Level VIs.................................................................................................3-2

Intermediate VIs ..............................................................................................3-2

High-Level VIs ................................................................................................3-2

Which FTP VIs Can I Use? ...........................................................................................3-3

Getting Started with FTP VIs ........................................................................................3-4

Internet Developers Toolkit for G

Contents

Chapter 4

E-Mail VIs

What Are E-Mail VIs?................................................................................................... 4-1

Low-Level VIs ................................................................................................ 4-1

Intermediate VIs.............................................................................................. 4-2

High-Level VIs ............................................................................................... 4-2

What Is a Character Set? ............................................................................................... 4-2

US-ASCII Character Set ................................................................................. 4-3

ISO Latin-1 Character Set............................................................................... 4-3

Macintosh Character Set ................................................................................. 4-3

Transliteration ................................................................................................. 4-4

Which E-Mail VIs Can I Use?....................................................................................... 4-5

Getting Started with SMTP VIs .................................................................................... 4-5

Chapter 5

Telnet VIs

What Is a Telnet Connection? ....................................................................................... 5-1

Network Virtual Terminal............................................................................... 5-1

Negotiated Options ......................................................................................... 5-1

How Do I Use the Telnet VIs? ...................................................................................... 5-2

Which Telnet VIs Can I Use?........................................................................................ 5-2

Getting Started with Telnet VIs..................................................................................... 5-3

Chapter 6

URL VIs

What Is a URL? ............................................................................................................. 6-1

Which URL VIs Can I Use? .......................................................................................... 6-2

Chapter 7

Getting Started with the G Web Server

What Is the G Web Server? ........................................................................................... 7-1

Why Use the G Web Server? .......................................................................... 7-1

HTTP Server ................................................................................................... 7-2

How Do I Configure My G Web Server?...................................................................... 7-4

What Is HTML? ............................................................................................................ 7-5

How Do I Get Started with the G Web Server? ............................................................ 7-6

Online Examples ............................................................................................. 7-8

CGI Basics ...................................................................................................... 7-8

Internet Developers Toolkit for G

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