BIO_s_connect: Support configuration of non-blocking mode in datagram mode

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Matt Caswell <matt@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21715)

diff --git a/crypto/bio/bss_conn.c b/crypto/bio/bss_conn.c
index 865a4d4cd429ee134fc4a6a8b02e3aa7d4441bc8..0f9cba06da388c867d60d5bbb8e100021e836113 100644 (file)
--- a/crypto/bio/bss_conn.c
+++ b/crypto/bio/bss_conn.c
@@ -610,6 +610,10 @@ static long conn_ctrl(BIO *b, int cmd, long num, void *ptr)
             data->connect_mode |= BIO_SOCK_NONBLOCK;
         else
             data->connect_mode &= ~BIO_SOCK_NONBLOCK;
+
+        if (data->dgram_bio != NULL)
+            ret = BIO_set_nbio(data->dgram_bio, num);
+
         break;
 #if defined(TCP_FASTOPEN) && !defined(OPENSSL_NO_TFO)
     case BIO_C_SET_TFO: