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CGI Problem. Help!!!
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Maverick  
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 More options Sep 27 2006, 7:50 pm
Newsgroups: comp.infosystems.www.authoring.cgi
From: "Maverick" <vellanki.chan...@gmail.com>
Date: Wed, 27 Sep 2006 17:50:40 CST
Local: Wed, Sep 27 2006 7:50 pm
Subject: CGI Problem. Help!!!
Print | Individual message | Show original | Report this message | Find messages by this author
Hi All,

 I am new to CGI, I thought you people might be able to help me:

My HTML code:
--------
<HTML>
<HEAD>
<TITLE> CGI Multiplication Example </TITLE>
</HEAD>
<FORM ACTION="http://localhost/cgi-bin/mult.cgi" METHOD="GET">
<P> Please specify the multiplicands </P>
<INPUT name="m" SIZE="5">
<INPUT NAME="n" SIZE="5"><BR>
<INPUT type="SUBMIT" value="Multiply!">
</FORM>
<BODY>
</BODY>
</HTML>
--------

My C CGI Script code:
--------
#include<stdio.h>
#include<stdlib.h>
int main(void)
{
            char *data;
            long m,n;
            printf("Content-type: text/html\n\n");
            printf("<TITLE> Multiplication results </TITLE>\n");
            printf("<H2>Mutliplication results</H2>\n");
            data = getenv("QUERY_STRING");
            if(*data == ' ')
                        printf("<P>ERROR</P>");
            else
            if(scanf(data,"m=%1d&n=%1d",&m,&n)!=2)
                        printf("<P>ERROR</P>");
            else
                        printf("The product of %1d and %1d is
%1d",m,n,m*n);
            return 0;

}

-----------

Now when I run my HTML, it is giving Internal Server Error, I am using
Apache Web Server below is error message that I have found in Error log
file:

----------
[Tue Sep 26 20:39:42 2006] [error] [client 127.0.0.1] (OS 5)Access is
denied.  : couldn't create child process: 720005: MULT.cgi
[Tue Sep 26 20:39:42 2006] [error] [client 127.0.0.1] (OS 5)Access is
denied.  : couldn't spawn child process: C:/Program Files/Apache
Software Foundation/Apache2.2/cgi-bin/MULT.cgi
----------

Please let me know where I am doing wrong!!

Thanks,
Chandra.

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Sherm Pendley  
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 More options Sep 28 2006, 12:01 am
Newsgroups: comp.infosystems.www.authoring.cgi
From: Sherm Pendley <spamt...@dot-app.org>
Date: Wed, 27 Sep 2006 22:01:23 CST
Local: Thurs, Sep 28 2006 12:01 am
Subject: Re: CGI Problem. Help!!!
Print | Individual message | Show original | Report this message | Find messages by this author

That's invalid HTML. Forms go inside the body element. That's *a* problem,
and you'll certainly want to fix that, but it's obviously not *the* problem
since your CGI appears to be getting called.

> My C CGI Script code:

Writing CGIs in C is what drove me to Perl. :-)

I don't see any immediate problem with it, although there's no reason you
should be parsing the form input for yourself. That can be a bit tricky in
places, and there are libraries to do it for you.

One of the better ones:

    http://www.boutell.com/cgic/

> Now when I run my HTML

Nit-Pick: You can't run HTML. It's markup, not programming.

>, it is giving Internal Server Error, I am using
> Apache Web Server below is error message that I have found in Error log
> file:

> ----------
> [Tue Sep 26 20:39:42 2006] [error] [client 127.0.0.1] (OS 5)Access is
> denied.  : couldn't create child process: 720005: MULT.cgi
> [Tue Sep 26 20:39:42 2006] [error] [client 127.0.0.1] (OS 5)Access is
> denied.  : couldn't spawn child process: C:/Program Files/Apache
> Software Foundation/Apache2.2/cgi-bin/MULT.cgi
> ----------

> Please let me know where I am doing wrong!!

Try giving your CGI an .exe extension. It's in /cgi-bin, so it shouldn't
need a .cgi extension for Apache to execute it as a CGI, and Windows may
not want to run it with a .cgi extension.

sherm--

--
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Cocoa programming in Perl: http://camelbones.sourceforge.net

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PLEASE NOTE: comp.infosystems.www.authoring.cgi is a
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NOT the originators of the articles and are NOT responsible
for their content.

HOW TO POST to comp.infosystems.www.authoring.cgi:
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