FastCGI: skip special bufs in buffered request body chain.

This prevents forming empty records out of such buffers.  Particularly it fixes
double end-of-stream records with chunked transfer encoding, or when HTTP/2 is
used and the END_STREAM flag has been sent without data.  In both cases there
is an empty buffer at the end of the request body chain with the "last_buf"
flag set.

The canonical libfcgi, as well as php implementation, tolerates such records,
while the HHVM parser is more strict and drops the connection (ticket #950).
1 file changed
tree: 8476beb5c5a5e46d306202742d96fc46dedcb8ec
  1. auto/
  2. conf/
  3. contrib/
  4. docs/
  5. misc/
  6. src/
  7. .hgtags