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authorRichard Levitte <levitte@openssl.org>2020-07-09 08:37:46 +0200
committerRichard Levitte <levitte@openssl.org>2020-07-11 10:00:33 +0200
commite23d850ff3281220f33ed78d9ca4fcadfa279565 (patch)
tree4e7f73d978bb1a7986e0ac27ee61bdab23d66ed2 /include/internal/endian.h
parentd685fc7a59699aeb17120aebd17a9175ce5930cd (diff)
Add and use internal header that implements endianness check
This moves test/ossl_test_endian.h to include/internal/endian.h and thereby makes the macros in there our standard way to check endianness in run-time. Reviewed-by: Kurt Roeckx <kurt@roeckx.be> (Merged from https://github.com/openssl/openssl/pull/12390)
Diffstat (limited to 'include/internal/endian.h')
-rw-r--r--include/internal/endian.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/internal/endian.h b/include/internal/endian.h
new file mode 100644
index 0000000000..6027bd65de
--- /dev/null
+++ b/include/internal/endian.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (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
+ */
+
+#ifndef OSSL_INTERNAL_ENDIAN_H
+# define OSSL_INTERNAL_ENDIAN_H
+
+# define DECLARE_IS_ENDIAN \
+ const union { \
+ long one; \
+ char little; \
+ } ossl_is_endian = { 1 }
+
+# define IS_LITTLE_ENDIAN (ossl_is_endian.little != 0)
+# define IS_BIG_ENDIAN (ossl_is_endian.little == 0)
+
+#endif