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Full Discussion: Triggering UNIX command from Web Browser
Operating Systems Solaris Triggering UNIX command from Web Browser Post 302404675 by hergp on Wednesday 17th of March 2010 03:14:24 AM
Old 03-17-2010
OK, here is a working example:

First you need a html page with form(s), lets call it test.html and you put it into the document root of the server:
Code:
<html><head><title>Test Form</title></head>
<body>
  <form action="/cgi-bin/test.cgi" method="get">
    input for GET: <input name="get_input">
    <input type=submit value="Submit via GET">
  </form>
  <form action="/cgi-bin/test.cgi" method="post">
    input for POST: <input name="post_input">
    <input type=submit value="Submit via POST">
  </form>
  </body>
</html>

Next you need a cgi-script. I choose a shellscript using the kornshell. You save it as "test.cgi" into the cgi-bin directory of your webserver.
Code:
#!/bin/ksh
print "Content-type: text/plain\r\n\r"
print "my query string from (GET) is \"$QUERY_STRING\""
print "\nmy stdin (from POST) is"
cat

When you open the test.html page in your browser, you can enter a string into one of the two input fields and press the submit button adjacent to it.

When you press the "Submit via GET" button, you effectively call /cgi-bin/test.cgi?get_input=your_input_string and the browser shows this output:
Code:
my query string from (GET) is "get_input=your_input_string"
my stdin (from POST) is

When you press the "Submit via POST" button, your input is sent to the stdin of the cgi-script.
Code:
my query string from (GET) is ""
my stdin (from POST) is
post_input=your_input_string

What's left for you to do is: receive the actual user's input either via GET or POST and then process the input according to your needs.

I hope, this helps to understand what's going on.
Last edited by hergp; 03-17-2010 at 04:21 AM..
 

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LEARN ABOUT DEBIAN

cgiwrap_read

cgiwrap_read(3) 						   cgi/cgiwrap.h						   cgiwrap_read(3)

NAME

       cgiwrap_read  - cgiwrap input function

SYNOPSIS

       #include <cgi/cgiwrap.h>

       void cgiwrap_read (char *buf, int buf_len, int *read_len);

ARGUMENTS

       buf - a pre-allocated buffer to read the data into
       buf_len - the size of the pre-allocated buffer

DESCRIPTION

       cgiwrap_read is used to read incoming data from the client, usually from a POST or PUT HTTP request.  It wraps the part of fread(stdin).

RETURN VALUE

       read_len - the number of bytes read into buf

SEE ALSO

       cgiwrap_iterenv(3),  cgiwrap_putenv(3),	cgiwrap_init_emu(3),  cgiwrap_writef(3), cgiwrap_init_std(3), cgiwrap_writevf(3), cgiwrap_read(3),
       cgiwrap_write(3), cgiwrap_getenv

ClearSilver							   12 July 2007 						   cgiwrap_read(3)
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