[FASTCGI] Content-Length header should be set usingap_set_content_length

[Rob Saccoccio]

Committed.  Thanks.

Rob

> -----Original Message-----
> From: fastcgi-developers-bounces+robs=fastcgi.com at mailman.fastcgi.com
> [mailto:fastcgi-developers-bounces+robs=fastcgi.com at mailman.fastcgi.com]
> On Behalf Of Artur Zaprzala
> Sent: Tuesday, November 04, 2008 10:17 AM
> To: fastcgi-developers at mailman.fastcgi.com
> Subject: [FASTCGI] Content-Length header should be set
> usingap_set_content_length
> 
> Content-Length header should be set using ap_set_content_length() function
> in
> process_headers(). I fixed this about 3 years ago and I don't remember
> what was
> the problem with the current aproach, but it surely was.
> 
> Today I did some research to support my fix.
> 
> Currently process_headers() adds Content-Length to err_headers_out. Here
> is
> description of err_headers_out from Apache documentation:
> > The difference between headers_out and err_headers_out is that the
> latter are printed even on error, and persist across internal redirects
> (so the headers printed for ErrorDocument handlers will have them).
> 
> And Content-Length shouldn't persist across internal redirects.