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BUG/MINOR: http_ana: Be sure to have an allocated buffer to generate an error

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In http_reply_and_close() and http_server_error(), we must be sure to have an
allocated buffer (buf.size > 0) to consider it as a valid HTX message. For now,
there is no way to hit this bug. But a fix to support "empty" error messages in
HTX is pending. Such empty messages, after parsing, will be converted into
unallocated buffer (buf.size == 0).

This patch must be backported to 2.0 and 1.9. owever, the patch will have to be
adapted.
This commit is contained in:
Christopher Faulet 2019-07-22 16:41:43 +02:00
parent ef91c939f3
commit 9f5839cde2
1 changed files with 2 additions and 2 deletions
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4
src/http_ana.c
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@ -4845,7 +4845,7 @@ void http_server_error(struct stream *s, struct stream_interface *si, int err,
/* <msg> is an HTX structure. So we copy it in the response's
* channel */
if (msg) {
if (msg && !b_is_null(msg)) {
struct channel *chn = si_ic(si);
struct htx *htx;
@ -4875,7 +4875,7 @@ void http_reply_and_close(struct stream *s, short status, struct buffer *msg)
/* <msg> is an HTX structure. So we copy it in the response's
* channel */
/* FIXME: It is a problem for now if there is some outgoing data */
if (msg) {
if (msg && !b_is_null(msg)) {
struct channel *chn = &s->res;
struct htx *htx;