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<H1><FONT COLOR="#FF0000"><B><FONT SIZE=10>CGI Programming Unleashed</B></FONT></FONT></H1>
<H3><I>by Eugene Eric Kim</I></H3>
<HR WIDTH="100%"></P>
<H2 ALIGN=CENTER><FONT COLOR="#FF0000"><FONT SIZE=+3>C O N T E N T S<A NAME="CONTENTS"></A>
</FONT></FONT></H2>
<HR WIDTH="100%"></P>
<BR>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
1</FONT><FONT SIZE=5> <A HREF="ch1.htm"><I>What CGI Programs Can and Can't
Do</I></A></FONT></H2>
<UL>
<LI><A HREF="ch1.htm#WhatCGIIsUsefulFor" >What CGI Is Useful For</A>
<UL>
<LI><A HREF="ch1.htm#SimpleTasks" >Simple Tasks</A>
<LI><A HREF="ch1.htm#IntermediateTasks" >Intermediate Tasks</A>
<LI><A HREF="ch1.htm#AdvancedTasks" >Advanced Tasks</A>
</UL>
<LI><A HREF="ch1.htm#WhatCGIIsNotUsefulFor" >What CGI Is Not Useful For</A>
<LI><A HREF="ch1.htm#WhatCGIProgramsCanDo" >What CGI Programs Can Do</A>
<UL>
<LI><A HREF="ch1.htm#WhatCGICantDo" >What CGI Can't Do</A>
</UL>
<LI><A HREF="ch1.htm#Summary" >Summary</A>
</UL>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
2</FONT><FONT SIZE=5> <A HREF="ch2.htm"><I>The CGI Specification</I></A></FONT>
</H2>
<UL>
<LI><A HREF="ch2.htm#CGIOverview" >CGI Overview</A>
<LI><A HREF="ch2.htm#Languages" >Languages</A>
<LI><A HREF="ch2.htm#CGIMethods" >CGI Methods</A>
<UL>
<LI><A HREF="ch2.htm#GETMethod" >GET Method</A>
<LI><A HREF="ch2.htm#POSTMethod" >POST Method</A>
<LI><A HREF="ch2.htm#HEADMethod" >HEAD Method</A>
</UL>
<LI><A HREF="ch2.htm#InterfaceSpecification" >Interface Specification</A>
<UL>
<LI><A HREF="ch2.htm#EnvironmentVariables" >Environment Variables</A>
<LI><A HREF="ch2.htm#CommandLine" >Command Line</A>
<LI><A HREF="ch2.htm#StandardInput" >Standard Input</A>
<LI><A HREF="ch2.htm#StandardOutput" >Standard Output</A>
</UL>
<LI><A HREF="ch2.htm#Examples" >Examples</A>
<LI><A HREF="ch2.htm#MoreInformation" >More Information</A>
<LI><A HREF="ch2.htm#Summary" >Summary</A>
</UL>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
3</FONT><FONT SIZE=5> <A HREF="ch3.htm"><I>Crash Course in CGI</I></A></FONT></H2>
<UL>
<LI><A HREF="ch3.htm#WhyCGIExists" >Why CGI Exists</A>
<LI><A HREF="ch3.htm#WannaHaveaConversation" >Wanna Have a Conversation?</A>
<UL>
<LI><A HREF="ch3.htm#MakingaConnection" >Making a Connection</A>
<LI><A HREF="ch3.htm#GettingDowntoBusiness" >Getting Down to Business</A>
</UL>
<LI><A HREF="ch3.htm#ParlezVousEnvironmentVariables" ><I>Parlez Vous</I> Environment Variables?</A>
<UL>
<LI><A HREF="ch3.htm#ServerSpecificEnvironmentVariables" >Server-Specific Environment Variables</A>
<LI><A HREF="ch3.htm#ClientSpecificEnvironmentVariables" >Client-Specific Environment Variables</A>
<LI><A HREF="ch3.htm#RequestSpecificEnvironmentVariables" >Request-Specific Environment Variables</A>
</UL>
<LI><A HREF="ch3.htm#TakingItAllIn" >Taking It All In</A>
<UL>
<LI><A HREF="ch3.htm#REQUEST_METHOD" >REQUEST_METHOD</A>
<LI><A HREF="ch3.htm#StrangeLookingData" >Strange Looking Data</A>
</UL>
<LI><A HREF="ch3.htm#RSVP" >RSVP</A>
<UL>
<LI><A HREF="ch3.htm#TypesofResponses" >Types of Responses</A>
<LI><A HREF="ch3.htm#Headers" >Headers</A>
</UL>
<LI><A HREF="ch3.htm#SomeThingstoConsider" >Some Things to Consider</A>
<LI><A HREF="ch3.htm#Summary" >Summary</A>
</UL>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
4</FONT><FONT SIZE=5> <A HREF="ch4.htm"><I>Comparison of the Various CGI
Programming Libraries</I></A></FONT></H2>
<UL>
<LI><A HREF="ch4.htm#CGILibrariesforCProgramming" >CGI Libraries for C Programming</A>
<UL>
<LI><A HREF="ch4.htm#CGIc105" >CGIc 1.05</A>
<LI><A HREF="ch4.htm#CGIHTML121" >CGI-HTML 1.21</A>
</UL>
<LI><A HREF="ch4.htm#TheccGIClassLibraries" >The C++ CGI Class Libraries</A>
<UL>
<LI><A HREF="ch4.htm#AHTML" >AHTML</A>
<LI><A HREF="ch4.htm#KellyBlacksCGIcclasses" >Kelly Black's CGI C++ Classes</A>
</UL>
<LI><A HREF="ch4.htm#PerlLibraries" >Perl Libraries</A>
<UL>
<LI><A HREF="ch4.htm#CGILib" >CGI-Lib</A>
</UL>
<LI><A HREF="ch4.htm#Summary" >Summary</A>
</UL>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
5</FONT><FONT SIZE=5> <A HREF="ch5.htm"><I>Designing Your CGI Application</I></A></FONT>
</H2>
<UL>
<LI><A HREF="ch5.htm#SizingItUp" >Sizing It Up</A>
<UL>
<LI><A HREF="ch5.htm#WhatDoestheApplicationHavetoDo" >What Does the Application Have to Do?</A>
<LI><A HREF="ch5.htm#PreliminarySketches" >Preliminary Sketches</A>
</UL>
<LI><A HREF="ch5.htm#ScopingItOut" >Scoping It Out</A>
<UL>
<LI><A HREF="ch5.htm#Pseudocode" >Pseudocode</A>
<LI><A HREF="ch5.htm#PlanningforProcessing" >Planning for Processing</A>
<LI><A HREF="ch5.htm#GatheringInput" >Gathering Input</A>
<LI><A HREF="ch5.htm#Processing" >Processing</A>
<LI><A HREF="ch5.htm#GeneratingOutput" >Generating Output</A>
</UL>
<LI><A HREF="ch5.htm#TheFinePrint" >The Fine Print</A>
<UL>
<LI><A HREF="ch5.htm#Libraries" >Libraries</A>
<LI><A HREF="ch5.htm#Languages" >Languages</A>
<LI><A HREF="ch5.htm#SharewithYourNeighbors" >Share with Your Neighbors</A>
<LI><A HREF="ch5.htm#PlanningfortheFuture" >Planning for the Future</A>
</UL>
<LI><A HREF="ch5.htm#YouCanTakeItwithYou" >You Can Take It with You</A>
<UL>
<LI><A HREF="ch5.htm#ServerSoftware" >Server Software</A>
<LI><A HREF="ch5.htm#OperatingSystems" >Operating Systems</A>
<LI><A HREF="ch5.htm#Reuse" >Reuse</A>
</UL>
<LI><A HREF="ch5.htm#Summary" >Summary</A>
</UL>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
6</FONT><FONT SIZE=5> <A HREF="ch6.htm"><I>Testing and Debugging</I></A></FONT>
</H2>
<UL>
<LI><A HREF="ch6.htm#TheProcessandMethodology" >The Process and Methodology</A>
<UL>
<LI><A HREF="ch6.htm#TheReviewCycle" >The Review Cycle</A>
<LI><A HREF="ch6.htm#AtYourCommand" >At Your Command…</A>
</UL>
<LI><A HREF="ch6.htm#SolitaryConfinement" >Solitary Confinement</A>
<UL>
<LI><A HREF="ch6.htm#PreventingHarmtoOriginalData" >Preventing Harm to Original Data</A>
<LI><A HREF="ch6.htm#IsNotEasilyAccessibletoGeneralUser" >Is Not Easily Accessible to General Users</A>
</UL>
<LI><A HREF="ch6.htm#LadiesandGentlemenStartYourTesting" >Ladies and Gentlemen, Start Your Testing</A>
<UL>
<LI><A HREF="ch6.htm#TheTestingProcess" >The Testing Process</A>
</UL>
<LI><A HREF="ch6.htm#DebuggingtheApplication" >Debugging the Application</A>
<UL>
<LI><A HREF="ch6.htm#CommonErrors" >Common Errors</A>
<LI><A HREF="ch6.htm#MakeUseofErrorLogs" >Make Use of Error Logs</A>
<LI><A HREF="ch6.htm#DebuggingFlags" >Debugging Flags</A>
<LI><A HREF="ch6.htm#ReTestingYourApplication" >Re-Testing Your Application</A>
</UL>
<LI><A HREF="ch6.htm#Summary" >Summary</A>
</UL>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
7</FONT><FONT SIZE=5> <A HREF="ch7.htm"><I>Server-Side Includes (SSI) and
Gateway</I></A></FONT></H2>
<UL>
<LI><A HREF="ch7.htm#WhatAreServerSideIncludesandWhat" >What Are Server-Side Includes, and What Are They Useful For?</A>
<LI><A HREF="ch7.htm#ComparisonofSSIandCGIs" >Comparison of SSI and CGIs</A>
<LI><A HREF="ch7.htm#WhichServersSupportSSI" >Which Servers Support SSI?</A>
<UL>
<LI><A HREF="ch7.htm#Cern" >Cern</A>
<LI><A HREF="ch7.htm#Apache" >Apache</A>
</UL>
<LI><A HREF="ch7.htm#AListofUsefulSSIDirectives" >A List of Useful SSI Directives</A>
<LI><A HREF="ch7.htm#SomeSSIExamples" >Some SSI Examples</A>
<UL>
<LI><A HREF="ch7.htm#Counter" >Counter</A>
<LI><A HREF="ch7.htm#RandomImageGenerator" >Random Image Generator</A>
</UL>
<LI><A HREF="ch7.htm#TheProtocoloftheWebHTTP" >The Protocol of the Web: HTTP</A>
<LI><A HREF="ch7.htm#GatewaysAccessingOtherProtocolsthro" >Gateways: Accessing Other Protocols through the Web</A>
<LI><A HREF="ch7.htm#ImprovingExistingGateways" >Improving Existing Gateways</A>
<LI><A HREF="ch7.htm#SomeGatewayExamples" >Some Gateway Examples</A>
<UL>
<LI><A HREF="ch7.htm#finger" >finger</A>
<LI><A HREF="ch7.htm#FormbyMail" >Form-by-Mail</A>
</UL>
<LI><A HREF="ch7.htm#UsingtheWebasaStandardInternetAcc" >Using the Web as a Standard Internet Access Interface</A>
<LI><A HREF="ch7.htm#Summary" >Summary</A>
</UL>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
8</FONT><FONT SIZE=5> <A HREF="ch8.htm"><I>Forms and How to Handle Them</I></A></FONT>
</H2>
<UL>
<LI><A HREF="ch8.htm#WhatIsanHTMLForm" >What Is an HTML Form?</A>
<UL>
<LI><A HREF="ch8.htm#WhatCanFormsDo" >What Can Forms Do?</A>
<LI><A HREF="ch8.htm#WhatCantFormsDo" >What Can't Forms Do?</A>
</UL>
<LI><A HREF="ch8.htm#CreatingHTMLForms" >Creating HTML Forms</A>
<UL>
<LI><A HREF="ch8.htm#ASampleHTMLForm" >A Sample HTML Form</A>
<LI><A HREF="ch8.htm#HTMLFormTags" >HTML Form Tags</A>
<LI><A HREF="ch8.htm#INPUTTYPETEXT" >INPUT TYPE=TEXT</A>
<LI><A HREF="ch8.htm#INPUTTYPESUBMIT" >INPUT TYPE=SUBMIT</A>
<LI><A HREF="ch8.htm#INPUTTYPERESET" >INPUT TYPE=RESET</A>
<LI><A HREF="ch8.htm#INPUTTYPERADIO" >INPUT TYPE=RADIO</A>
<LI><A HREF="ch8.htm#INPUTTYPEchECKBOX" >INPUT TYPE=chECKBOX</A>
<LI><A HREF="ch8.htm#INPUTTYPEIMAGE" >INPUT TYPE=IMAGE</A>
<LI><A HREF="ch8.htm#INPUTTYPEHIDDEN" >INPUT TYPE=HIDDEN</A>
<LI><A HREF="ch8.htm#TEXTAREA" >TEXTAREA</A>
<LI><A HREF="ch8.htm#SELECT" >SELECT</A>
<LI><A HREF="ch8.htm#FutureFORMHTMLTagsProposedintheD" >Future FORM HTML Tags Proposed in the "Draft HTML 3.0 Spec"</A>
<LI><A HREF="ch8.htm#FormStyle" >Form Style</A>
<LI><A HREF="ch8.htm#ASampleForm" >A Sample Form</A>
</UL>
<LI><A HREF="ch8.htm#HandlingFormSubmissions" >Handling Form Submissions</A>
<UL>
<LI><A HREF="ch8.htm#REQUEST_TYPEsGETversusPOST" >REQUEST_TYPEs GET versus POST</A>
<LI><A HREF="ch8.htm#FormDataDecoding" >Form Data Decoding</A>
<LI><A HREF="ch8.htm#ChoosingtheProgrammingLanguage" >Choosing the Programming Language</A>
<LI><A HREF="ch8.htm#ASampleCGIFormHandlerProgram" >A Sample CGI Form Handler Program</A>
<LI><A HREF="ch8.htm#FormsBasedIntranetInternetClientSer" >Forms-Based Intranet/Internet Client/Server Applications</A>
</UL>
<LI><A HREF="ch8.htm#FormsReadyReference" >Forms Ready Reference</A>
<UL>
<LI><A HREF="ch8.htm#BriefOutlineofGETandPOSTMechanisms" >Brief Outline of GET and POST Mechanisms</A>
<LI><A HREF="ch8.htm#BriefOutlineofFormEncoding" >Brief Outline of Form Encoding</A>
</UL>
<LI><A HREF="ch8.htm#Summary" >Summary</A>
</UL>
<H2><I><FONT SIZE=5 COLOR=#FF0000>Chapter</FONT></I><FONT SIZE=5 COLOR=#FF0000>
9</FONT><FONT SIZE=5> <A HREF="ch9.htm"><I>Security</I></A></FONT></H2>
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