Problems with cgi output using httpd 2.4.41 under Windows 10 x64

[Александр Комратов <brainheap2@xxxxxxxxx>]

Hi, everybody!

 

I've started using apache web server with cgi program written in C

 

httpd 2.4.41 under Windows 10 x64

 

As a first step I created a simple cgi that makes an easy HTML page.

Works good

But I need to include in my future web page pictures that would be generated by cgi either.

So I write another test cgi that was loading a little PNG image from file and then push it to the browser.

 

Huh, It doesn't work!

 

Browser replied image is broken.

I stored it to disk and compared with original file and found extra bytes when it goes through webserver.

Trying different images made different amount of extra bytes from 1 to 12

 

Two  hours watching if anyone had the same problem with no result. Problem is specific and rare and none found the way to solve it.

 

After making byte to byte comparison of the files I found that apache is adding #13bytes to #10 characters in image data even though image/png mime was signed in header that cgi output to web server.

 

What's wrong?

 

Thatk you for any help

 

Alexander