commit d1c74728b144ac3ce6d1606f0be29edf3af4ea0f
author Maxim Dounin <mdounin@mdounin.ru> Mon Aug 10 18:52:34 2020 +0300
committer Maxim Dounin <mdounin@mdounin.ru> Mon Aug 10 18:52:34 2020 +0300
tree d623e6f62493ee08b7c8c95080eb25b9484996d4
parent d384e503994a96edfd4565672addf0e292070fba

SSL: disabled sending shutdown after ngx_http_test_reading().

Sending shutdown when ngx_http_test_reading() detects the connection is
closed can result in "SSL_shutdown() failed (SSL: ... bad write retry)"
critical log messages if there are blocked writes.

Fix is to avoid sending shutdown via the c->ssl->no_send_shutdown flag,
similarly to how it is done in ngx_http_keepalive_handler() for kqueue
when pending EOF is detected.

Reported by Jan Prachař
(http://mailman.nginx.org/pipermail/nginx-devel/2018-December/011702.html).