https://git.ruby-lang.org/ruby.git/commit/?id=fa24e7a57e

From fa24e7a57e15900c01fa84d7ff5b0905f6bb6092 Mon Sep 17 00:00:00 2001
From: Kazuki Yamaguchi <k@r...>
Date: Fri, 19 Mar 2021 19:18:25 +0900
Subject: [ruby/openssl] ssl: use SSL_get_rbio() to check if SSL is started or
 not

Use SSL_get_rbio() instead of SSL_get_fd(). SSL_get_fd() internally
calls SSL_get_rbio() and it's enough for our purpose.

In OpenSSL 3.0, SSL_get_fd() leaves an entry in the OpenSSL error queue
if BIO has not been set up yet, and we would have to clean it up.

https://github.com/ruby/openssl/commit/e95ee24867
---
 ext/openssl/ossl_ssl.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/ext/openssl/ossl_ssl.c b/ext/openssl/ossl_ssl.c
index 5d6c400c2a..a0f18d5388 100644
--- a/ext/openssl/ossl_ssl.c
+++ b/ext/openssl/ossl_ssl.c
@@ -1443,8 +1443,8 @@ ossl_sslctx_flush_sessions(int argc, VALUE *argv, VALUE self) https://github.com/ruby/ruby/blob/trunk/ext/openssl/ossl_ssl.c#L1443
 static inline int
 ssl_started(SSL *ssl)
 {
-    /* the FD is set in ossl_ssl_setup(), called by #connect or #accept */
-    return SSL_get_fd(ssl) >= 0;
+    /* BIO is created through ossl_ssl_setup(), called by #connect or #accept */
+    return SSL_get_rbio(ssl) != NULL;
 }
 
 static void
-- 
cgit v1.2.1


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