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Upstream: fixed "too big header" check.

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If header filter postponed processing of a header by returning NGX_AGAIN
and not moved u->buffer->pos, previous check incorrectly assumed there
is additional space and did another recv() with zero-size buffer.  This
resulted in "upstream prematurely closed connection" error instead
of correct "upstream sent too big header" one.

Patch by Feibo Li.
This commit is contained in:
Maxim Dounin 2012-02-10 14:31:04 +00:00
parent 891b43db32
commit 060b92451b
1 changed files with 1 additions and 1 deletions
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2
src/http/ngx_http_upstream.c
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@ -1591,7 +1591,7 @@ ngx_http_upstream_process_header(ngx_http_request_t *r, ngx_http_upstream_t *u)
if (rc == NGX_AGAIN) {
if (u->buffer.pos == u->buffer.end) {
if (u->buffer.last == u->buffer.end) {
ngx_log_error(NGX_LOG_ERR, c->log, 0,
"upstream sent too big header");