HTTP/3: skip empty request body buffers (ticket #2374). When client DATA frame header and its content come in different QUIC packets, it may happen that only the header is processed by the first ngx_http_v3_request_body_filter() call. In this case an empty request body buffer is added to r->request_body->bufs, which is later reused in a subsequent ngx_http_v3_request_body_filter() call without being removed from the body chain. As a result, rb->request_body->bufs ends up with two copies of the same buffer. The fix is to avoid adding empty request body buffers to r->request_body->bufs.

# Copyright (C) Igor Sysoev
# Copyright (C) Nginx, Inc.


CFLAGS = -q -O2 -tWM -w-8004 -w-8012 $(CPU_OPT)

zlib.lib:
	cd $(ZLIB)

	bcc32 -c $(CFLAGS) adler32.c crc32.c deflate.c \
		trees.c zutil.c compress.c \
		inflate.c inffast.c inftrees.c

	tlib zlib.lib +adler32.obj +crc32.obj +deflate.obj \
		+trees.obj +zutil.obj +compress.obj \
		+inflate.obj +inffast.obj +inftrees.obj