return value from server to client

[wind0965]

I confront a problem to return a value from server side to client after execute the .cgi. And the cgi is written in C.

I don't know if it is possible to do like:
--in C file (save as "test.cgi"):
int main()
{
.....
return result;
}


--in JavaScript:
var test_cgi = 0;
...
test_cgi = "test.cgi" //OR: test_cgi = return test.cgi

It seems not to work.


Or if there are other possibilities?

Thank you in advance!

[Jeff Mott]

http://www.codingforums.com/showthread.php?s=&threadid=32574

[wind0965]

So, you mean it is not possible to do that?

And another question, I wrote in C:(save as "test.cgi")
static int psTest()
{
char* option;
int flag;
option = getenv("QUERY_STRING");
if(option != NULL)
sscanf(option,"%d",&flag);
...
}

and in JavaScript:
var test_cgi = 0;
"test.cgi?" + test_cgi;

But I can not receive the test_cgi as parameter in C. That is flag is always 13784, and option is "*\p001". Do you have any idea?

Thank you!

[Scriptage]

To get a variable into javascript you need to do the following:

(Example uses Perl but it's the same principle);

In HTML:

<script source="cgi/bin/test.cgi"></script>

In test.cgi:

#!/usr/bin/perl -w

use CGI qw(:all);
use strict;

print header(type=>'text/javascript');

# Do your workings and such here:

my $x = param('some_number');
$x+=10;

print<<EOF;
var myVariable = $x;
EOF

1;

All this does is tell the browser you are outputting javascript, the writing the javascript back to the HTML page with the variable inside.

Regards