Merge remote-tracking branch 'origin/master'

# Conflicts:
#	README.md

include/internal/bio.h

@@ -0,0 +1,26 @@
+/*
+ * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/bio.h>
+
+struct bio_method_st {
+    int type;
+    const char *name;
+    int (*bwrite) (BIO *, const char *, int);
+    int (*bread) (BIO *, char *, int);
+    int (*bputs) (BIO *, const char *);
+    int (*bgets) (BIO *, char *, int);
+    long (*ctrl) (BIO *, int, long, void *);
+    int (*create) (BIO *);
+    int (*destroy) (BIO *);
+    long (*callback_ctrl) (BIO *, int, bio_info_cb *);
+};
+
+void bio_free_ex_data(BIO *bio);
+void bio_cleanup(void);