From 12abb5191d255afec7c47e3087718501e69086b5 Mon Sep 17 00:00:00 2001
From: Hayden Roche <hayden@wolfssl.com>
Date: Fri, 15 Jan 2021 12:21:12 -0600
Subject: [PATCH] Allow wolfSSL_RSA_public_decrypt on Windows.

---
 src/ssl.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/src/ssl.c b/src/ssl.c
index e2576a553..1ad05bddd 100644
--- a/src/ssl.c
+++ b/src/ssl.c
@@ -29067,6 +29067,9 @@ int wolfSSL_BIO_vprintf(WOLFSSL_BIO* bio, const char* format, va_list args)
             break;
 
         case WOLFSSL_BIO_MEMORY:
+    /* In Visual Studio versions prior to Visual Studio 2013, the va_* symbols
+       aren't defined. If using Visual Studio 2013 or later, define
+       HAVE_VA_COPY. */
     #if defined(OPENSSL_EXTRA) && (!defined(_WIN32) || defined(HAVE_VA_COPY))
         case WOLFSSL_BIO_SSL:
             {
@@ -48611,9 +48614,8 @@ int wolfSSL_RSA_private_decrypt(int len, const unsigned char* fr,
     return ret;
 }
 
-#if !defined(_WIN32) && !defined(HAVE_SELFTEST) && \
-    (!defined(HAVE_FIPS) || \
-        (defined(HAVE_FIPS_VERSION) && HAVE_FIPS_VERSION > 2))
+#if !defined(HAVE_SELFTEST) && (!defined(HAVE_FIPS) || \
+    (defined(HAVE_FIPS_VERSION) && HAVE_FIPS_VERSION > 2))
 int wolfSSL_RSA_public_decrypt(int flen, const unsigned char* from,
                           unsigned char* to, WOLFSSL_RSA* rsa, int padding)
 {
@@ -48665,7 +48667,7 @@ int wolfSSL_RSA_public_decrypt(int flen, const unsigned char* from,
     }
     return tlen;
 }
-#endif /* !defined(_WIN32) && !defined(HAVE_FIPS) && !defined(HAVE_SELFTEST) */
+#endif /* !defined(HAVE_FIPS) && !defined(HAVE_SELFTEST) */
 
 /* RSA private encrypt calls wc_RsaSSL_Sign. Similar function set up as RSA
  * public decrypt.