1 files changed, 87 insertions, 0 deletions
diff --git a/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/bio/bss_null.c b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/bio/bss_null.c
new file mode 100644
index 000000000..e73ce7841
--- /dev/null
+++ b/roms/edk2/CryptoPkg/Library/OpensslLib/openssl/crypto/bio/bss_null.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright 1995-2018 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 <stdio.h>
+#include <errno.h>
+#include "bio_local.h"
+#include "internal/cryptlib.h"
+
+static int null_write(BIO *h, const char *buf, int num);
+static int null_read(BIO *h, char *buf, int size);
+static int null_puts(BIO *h, const char *str);
+static int null_gets(BIO *h, char *str, int size);
+static long null_ctrl(BIO *h, int cmd, long arg1, void *arg2);
+static const BIO_METHOD null_method = {
+    BIO_TYPE_NULL,
+    "NULL",
+    /* TODO: Convert to new style write function */
+    bwrite_conv,
+    null_write,
+    /* TODO: Convert to new style read function */
+    bread_conv,
+    null_read,
+    null_puts,
+    null_gets,
+    null_ctrl,
+    NULL,
+    NULL,
+    NULL,                     /* null_callback_ctrl */
+};
+
+const BIO_METHOD *BIO_s_null(void)
+{
+    return &null_method;
+}
+
+static int null_read(BIO *b, char *out, int outl)
+{
+    return 0;
+}
+
+static int null_write(BIO *b, const char *in, int inl)
+{
+    return inl;
+}
+
+static long null_ctrl(BIO *b, int cmd, long num, void *ptr)
+{
+    long ret = 1;
+
+    switch (cmd) {
+    case BIO_CTRL_RESET:
+    case BIO_CTRL_EOF:
+    case BIO_CTRL_SET:
+    case BIO_CTRL_SET_CLOSE:
+    case BIO_CTRL_FLUSH:
+    case BIO_CTRL_DUP:
+        ret = 1;
+        break;
+    case BIO_CTRL_GET_CLOSE:
+    case BIO_CTRL_INFO:
+    case BIO_CTRL_GET:
+    case BIO_CTRL_PENDING:
+    case BIO_CTRL_WPENDING:
+    default:
+        ret = 0;
+        break;
+    }
+    return ret;
+}
+
+static int null_gets(BIO *bp, char *buf, int size)
+{
+    return 0;
+}
+
+static int null_puts(BIO *bp, const char *str)
+{
+    if (str == NULL)
+        return 0;
+    return strlen(str);
+}