Merge of r4372, r4373, r4374: SCGI fixes: *) Fixed incorrect use of r->http_version in scgi module. The r->http_version is a version of client's request, and modules must not set it unless they are really willing to downgrade protocol version used for a response (i.e. to HTTP/0.9 if no response headers are available). In neither case r->http_version may be upgraded. The former code downgraded response from HTTP/1.1 to HTTP/1.0 for no reason, causing various problems (see ticket #66). It was also possible that HTTP/0.9 requests were upgraded to HTTP/1.0. *) Removed duplicate function declaration. *) Removed error if there is no Status header. The SCGI specification doesn't specify format of the response, and assuming CGI specs should be used there is no reason to complain. RFC 3875 explicitly states that "A Status header field is optional, and status 200 'OK' is assumed if it is omitted".

fastcgi_param  QUERY_STRING       $query_string;
fastcgi_param  REQUEST_METHOD     $request_method;
fastcgi_param  CONTENT_TYPE       $content_type;
fastcgi_param  CONTENT_LENGTH     $content_length;

fastcgi_param  SCRIPT_NAME        $fastcgi_script_name;
fastcgi_param  REQUEST_URI        $request_uri;
fastcgi_param  DOCUMENT_URI       $document_uri;
fastcgi_param  DOCUMENT_ROOT      $document_root;
fastcgi_param  SERVER_PROTOCOL    $server_protocol;

fastcgi_param  GATEWAY_INTERFACE  CGI/1.1;
fastcgi_param  SERVER_SOFTWARE    nginx/$nginx_version;

fastcgi_param  REMOTE_ADDR        $remote_addr;
fastcgi_param  REMOTE_PORT        $remote_port;
fastcgi_param  SERVER_ADDR        $server_addr;
fastcgi_param  SERVER_PORT        $server_port;
fastcgi_param  SERVER_NAME        $server_name;

# PHP only, required if PHP was built with --enable-force-cgi-redirect
fastcgi_param  REDIRECT_STATUS    200;