02 June 2011

Playing with CGI

Hello,

I just want to play again with CGI, so today we will make a simple Hello Form.



And Here's the code:

First, the HTML Page:

<form action="/cgi-bin/sayHello" method="post" >
    <input type="text" name="username" />
    <input type="submit" value="say Hello" />
</form>

And the CGI Script (simple C++ program):

#include <iostream>
#include <cstdlib>
#include <cstring>

using std::cout;
using std::cin;
using std::endl;

int main(void)
{
    char* value = new char;
    cout<< "Content-type: text/html" << endl << endl;
    cin >> value;
    
    char* newValue = new char;
    
    bool toCpy = false;
    int cnt = 0;
    while (*value != '\0')
    {
        if (toCpy)
        {
            *newValue = *value;
            newValue++;
            cnt++;
        }
        
        if (toCpy == false && *value == '=') 
        {
            toCpy = true;
        }
        
        value++;
    }
    newValue = newValue - cnt;
    
    
    cout<<"Hello " << newValue<<endl;
}

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