From da56c33f4862a9837e0504a638b239170ef35597 Mon Sep 17 00:00:00 2001
From: Jacob Barthelmeh <jacob@wolfssl.com>
Date: Wed, 17 Mar 2021 16:33:37 +0700
Subject: [PATCH] add debug message on BIO write return value when printing out
 error nodes

---
 src/ssl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/ssl.c b/src/ssl.c
index c081086c2..6fcfba1c4 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -16459,7 +16459,9 @@ int wolfSSL_set_compression(WOLFSSL* ssl)
             wc_RemoveErrorNode(0);
         }
         } while (ret >= 0);
-        wolfSSL_BIO_write(bio, "", 1);
+        if (wolfSSL_BIO_write(bio, "", 1) != 1) {
+            WOLFSSL_MSG("Issue writing final string terminator");
+        }
     }
 #endif /* !NO_BIO */
 #endif /* OPENSSL_EXTRA || DEBUG_WOLFSSL_VERBOSE */