1 files changed, 8 insertions, 2 deletions

diff --git a/src/lib/libcrypto/bio/bss_bio.c b/src/lib/libcrypto/bio/bss_bio.c
index 78c6ab4fdd..a5da473031 100644
--- a/src/lib/libcrypto/bio/bss_bio.c
+++ b/src/lib/libcrypto/bio/bss_bio.c
@@ -22,7 +22,12 @@
 #include <openssl/err.h>
 #include <openssl/crypto.h>
 
-#include "openssl/e_os.h"
+#include "e_os.h"
+
+/* VxWorks defines SSIZE_MAX with an empty value causing compile errors */
+#if defined(OPENSSL_SYS_VSWORKS)
+# undef SSIZE_MAX
+#endif
 #ifndef SSIZE_MAX
 # define SSIZE_MAX INT_MAX
 #endif
@@ -474,7 +479,8 @@ static long bio_ctrl(BIO *bio, int cmd, long num, void *ptr)
                 break;
 
         case BIO_C_GET_WRITE_BUF_SIZE:
-                num = (long) b->size;
+                ret = (long) b->size;
+                break;
 
         case BIO_C_MAKE_BIO_PAIR:
                 {