Initial commit

Change-Id: I4bf1707bd3dfeadf2c17b0a7daff372b1925ebbd

runtime/helpers/stdio.h

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+/*
+ * Copyright (c) 2017, Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#pragma once
+#ifndef _WIN32
+#ifndef __STDC_LIB_EXT1__
+#if __STDC_WANT_LIB_EXT1__ != 1
+
+#include <errno.h>
+#include <cstdio>
+
+inline int fopen_s(FILE **pFile, const char *filename, const char *mode) {
+    if ((pFile == nullptr) || (filename == nullptr) || (mode == nullptr)) {
+        return -EINVAL;
+    }
+
+    *pFile = fopen(filename, mode);
+    if (*pFile == nullptr) {
+        return -errno;
+    }
+
+    return 0;
+}
+
+#endif
+#endif
+#endif