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openssl: another attempt to get SSL_shutdown right

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This commit is contained in:
Matthew Flatt 2012-03-02 10:33:36 -07:00
parent 5630a3a1ca
commit 06e94d510a
1 changed files with 6 additions and 4 deletions
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10
collects/openssl/mzssl.rkt
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@ -897,10 +897,12 @@
(loop cnt)]
[else
(if (= n 0)
;; When 0 is returned, the SSL object doesn't correctly
;; report what it wants (e.g., a write). Send everything
;; out that we have and try again, up to 10 times.
(unless (cnt . >= . 10)
;; When 0 is returned, a shutdown depends on
;; input from the peer. If we've already tried twice,
;; wait for some input and try again.
(begin
(when (cnt . >= . 2)
(pump-input-once mzssl #t))
(loop (add1 cnt)))
((mzssl-error mzssl) 'read-bytes
"SSL shutdown failed ~a"