Lesson 35 - Get Compute Auth Token Working

Plugins/GameLiftPlugin/Source/AWSSDK/Include/aws/common/zero.h

@@ -0,0 +1,67 @@
+#ifndef AWS_COMMON_ZERO_H
+#define AWS_COMMON_ZERO_H
+
+/**
+ * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ * SPDX-License-Identifier: Apache-2.0.
+ */
+
+#include <aws/common/stdbool.h>
+#include <aws/common/stdint.h>
+
+#include <string.h>
+
+AWS_PUSH_SANE_WARNING_LEVEL
+AWS_EXTERN_C_BEGIN
+
+/**
+ * Set each byte in the struct to zero.
+ */
+#define AWS_ZERO_STRUCT(object)                                                                                        \
+    do {                                                                                                               \
+        memset(&(object), 0, sizeof(object));                                                                          \
+    } while (0)
+
+/**
+ * Set each byte in the array to zero.
+ * Does not work with arrays of unknown bound.
+ */
+#define AWS_ZERO_ARRAY(array) memset((void *)(array), 0, sizeof(array))
+
+/**
+ * Returns whether each byte in the object is zero.
+ */
+#ifdef CBMC
+/* clang-format off */
+#    define AWS_IS_ZEROED(object)                                                                                      \
+        __CPROVER_forall {                                                                                             \
+            int i;                                                                                                     \
+            (i >= 0 && i < sizeof(object)) ==> ((const uint8_t *)&object)[i] == 0                                      \
+        }
+/* clang-format on */
+#else
+#    define AWS_IS_ZEROED(object) aws_is_mem_zeroed(&(object), sizeof(object))
+#endif
+
+/**
+ * Returns whether each byte is zero.
+ */
+AWS_STATIC_IMPL
+bool aws_is_mem_zeroed(const void *buf, size_t bufsize);
+
+/**
+ * Securely zeroes a memory buffer. This function will attempt to ensure that
+ * the compiler will not optimize away this zeroing operation.
+ */
+AWS_COMMON_API
+void aws_secure_zero(void *pBuf, size_t bufsize);
+
+AWS_EXTERN_C_END
+
+#ifndef AWS_NO_STATIC_IMPL
+#    include <aws/common/zero.inl>
+#endif /* AWS_NO_STATIC_IMPL */
+
+AWS_POP_SANE_WARNING_LEVEL
+
+#endif /* AWS_COMMON_ZERO_H */