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Detect runaway chunks in ngx_http_parse_chunked().
As defined in HTTP/1.1, body chunks have the following ABNF:
chunk = chunk-size [ chunk-ext ] CRLF chunk-data CRLF
where chunk-data is a sequence of chunk-size octets.
With this change, chunk-data that doesn't end up with CRLF at chunk-size
offset will be treated as invalid, such as in the example provided below:
4
SEE-THIS-AND-
4
THAT
0
author | Sergey Kandaurov <pluknet@nginx.com> |
---|---|
date | Tue, 03 Sep 2019 17:26:56 +0300 |
parents | 05c894a598ea |
children | 549b13cd793b |
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# Copyright (C) Igor Sysoev # Copyright (C) Nginx, Inc. NGX_MAKEFILE=$NGX_OBJS/Makefile NGX_MODULES_C=$NGX_OBJS/ngx_modules.c NGX_AUTO_HEADERS_H=$NGX_OBJS/ngx_auto_headers.h NGX_AUTO_CONFIG_H=$NGX_OBJS/ngx_auto_config.h NGX_AUTOTEST=$NGX_OBJS/autotest NGX_AUTOCONF_ERR=$NGX_OBJS/autoconf.err # STUBs NGX_ERR=$NGX_OBJS/autoconf.err MAKEFILE=$NGX_OBJS/Makefile NGX_PCH= NGX_USE_PCH= # check the echo's "-n" option and "\c" capability if echo "test\c" | grep c >/dev/null; then if echo -n test | grep n >/dev/null; then ngx_n= ngx_c= else ngx_n=-n ngx_c= fi else ngx_n= ngx_c='\c' fi # create Makefile cat << END > Makefile default: build clean: rm -rf Makefile $NGX_OBJS END