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| 1 | <html><head><title>CGI Script input</title></head><body><h1><img alt="" src="in_files/CGIlogo.gif"> CGI Script Input</h1>
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| 2 | <hr>
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| 3 |
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| 4 | <h2>Specification</h2>
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| 5 |
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| 6 | For requests which have information attached after the header, such as
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| 7 | HTTP POST or PUT, the information will be sent to the script on stdin.
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| 8 | <p>
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| 9 |
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| 10 | The server will send <a href="http://hoohoo.ncsa.uiuc.edu/cgi/env.html#cl">CONTENT_LENGTH</a> bytes on
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| 11 | this file descriptor. Remember that it will give the <a href="http://hoohoo.ncsa.uiuc.edu/cgi/env.html#ct">CONTENT_TYPE</a> of the data as well. The server is
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| 12 | in no way obligated to send end-of-file after the script reads
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| 13 | <code>CONTENT_LENGTH</code> bytes. </p><p>
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| 14 | </p><hr>
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| 15 | <h2>Example</h2>
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| 16 |
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| 17 | Let's take a form with METHOD="POST" as an example. Let's say the form
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| 18 | results are 7 bytes encoded, and look like <code>a=b&b=c</code>.
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| 19 | <p>
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| 20 |
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| 21 | In this case, the server will set CONTENT_LENGTH to 7 and CONTENT_TYPE
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| 22 | to application/x-www-form-urlencoded. The first byte on the script's
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| 23 | standard input will be "a", followed by the rest of the encoded string.</p><p>
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| 24 |
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| 25 | </p><hr>
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| 26 |
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| 27 | <a href="http://hoohoo.ncsa.uiuc.edu/cgi/interface.html"><img alt="[Back]" src="in_files/back.gif">Return to the
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| 28 | interface specification</a> <p>
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| 29 |
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| 30 | CGI - Common Gateway Interface
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| 31 | </p><address><a href="http://hoohoo.ncsa.uiuc.edu/cgi/mailtocgi.html">cgi@ncsa.uiuc.edu</a></address>
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| 32 |
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| 33 | </body></html>
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