Channels ▼
RSS

Writing CGI Scripts in REXX (Web Techniques, May 1996)


Writing CGI Scripts in REXX, Listing 2 (Web Techniques, May 1996)

Web Techniques Magazine

May 1996

Volume 1, Issue 2





Writing CGI Scripts in REXX




Listing Two



ReadPost: PROCEDURE; PARSE ARG StdinFile

  /******************************************** */

  /*Read HTML FORM POST input (if any) from     */

  /*standard input. Note that if the caller     */

  /*provides a filename then we save the input  */

  /*in case we need to send it to another       */

  /*script. If so we can restore the stdin for  */

  /*the called command by  using the command:   */

  /*ADDRESS UNIX script '<' StdinF.             */

  /*A good way to get a unique filename to save */

  /*the standard input in, is to use the process*/

  /*id. For example:                            */

  /* StdinFile='/tmp/stdin'_GETPID()            */

  /* Post=ReadPost(StdinFile)                   */

  /*_GETPID() provides the process ID in UniREXX*/

  /*ReadPost returns the POST input if the      */

  /*REQUEST_METHOD="POST" else it returns null. */

  /*N.b. the returned Post input does NOT have  */

  /*plus signs (+) converted to spaces or hex   */

  /* ASCII %XX encodings converted to characters*/  

  /******************************************** */      

  In=''

  IF GETENV('REQUEST_METHOD')="POST" THEN DO

     In=CHARIN(,1,GETENV('CONTENT_LENGTH'))

     IF In='' THEN DO

        SAY '400: Null input from POST!'; EXIT

     END

     IF StdinFile/='' THEN DO

        IF CHAROUT(StdinFile,In,1) /=0 THEN DO

           SAY '500: Unable to write out all POST chars!' 

           EXIT

        END

        Fail=CHAROUT(StdinFile)   /*Close the file*/

     END

   END

RETURN In





( back )


Copyright Web Techniques. All rights reserved.


Related Reading


More Insights






Currently we allow the following HTML tags in comments:

Single tags

These tags can be used alone and don't need an ending tag.

<br> Defines a single line break

<hr> Defines a horizontal line

Matching tags

These require an ending tag - e.g. <i>italic text</i>

<a> Defines an anchor

<b> Defines bold text

<big> Defines big text

<blockquote> Defines a long quotation

<caption> Defines a table caption

<cite> Defines a citation

<code> Defines computer code text

<em> Defines emphasized text

<fieldset> Defines a border around elements in a form

<h1> This is heading 1

<h2> This is heading 2

<h3> This is heading 3

<h4> This is heading 4

<h5> This is heading 5

<h6> This is heading 6

<i> Defines italic text

<p> Defines a paragraph

<pre> Defines preformatted text

<q> Defines a short quotation

<samp> Defines sample computer code text

<small> Defines small text

<span> Defines a section in a document

<s> Defines strikethrough text

<strike> Defines strikethrough text

<strong> Defines strong text

<sub> Defines subscripted text

<sup> Defines superscripted text

<u> Defines underlined text

Dr. Dobb's encourages readers to engage in spirited, healthy debate, including taking us to task. However, Dr. Dobb's moderates all comments posted to our site, and reserves the right to modify or remove any content that it determines to be derogatory, offensive, inflammatory, vulgar, irrelevant/off-topic, racist or obvious marketing or spam. Dr. Dobb's further reserves the right to disable the profile of any commenter participating in said activities.

 
Disqus Tips To upload an avatar photo, first complete your Disqus profile. | View the list of supported HTML tags you can use to style comments. | Please read our commenting policy.
 

Video