diff options
Diffstat (limited to 'openssl/include/openssl/macros.h')
| -rw-r--r-- | openssl/include/openssl/macros.h | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/openssl/include/openssl/macros.h b/openssl/include/openssl/macros.h new file mode 100644 index 0000000..8aeec22 --- /dev/null +++ b/openssl/include/openssl/macros.h @@ -0,0 +1,256 @@ +/*
+ * Copyright 2019-2020 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
+ */
+
+#include <openssl/opensslconf.h>
+#include <openssl/opensslv.h>
+
+#ifndef OPENSSL_MACROS_H
+# define OPENSSL_MACROS_H
+
+/* Helper macros for CPP string composition */
+# define OPENSSL_MSTR_HELPER(x) #x
+# define OPENSSL_MSTR(x) OPENSSL_MSTR_HELPER(x)
+
+/*
+ * Sometimes OPENSSSL_NO_xxx ends up with an empty file and some compilers
+ * don't like that. This will hopefully silence them.
+ */
+# define NON_EMPTY_TRANSLATION_UNIT static void *dummy = &dummy;
+
+/*
+ * Generic deprecation macro
+ *
+ * If OPENSSL_SUPPRESS_DEPRECATED is defined, then DECLARE_DEPRECATED
+ * becomes a no-op
+ */
+# ifndef DECLARE_DEPRECATED
+# define DECLARE_DEPRECATED(f) f;
+# ifndef OPENSSL_SUPPRESS_DEPRECATED
+# ifdef __GNUC__
+# if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ > 0)
+# undef DECLARE_DEPRECATED
+# define DECLARE_DEPRECATED(f) f __attribute__ ((deprecated));
+# endif
+# elif defined(__SUNPRO_C)
+# if (__SUNPRO_C >= 0x5130)
+# undef DECLARE_DEPRECATED
+# define DECLARE_DEPRECATED(f) f __attribute__ ((deprecated));
+# endif
+# endif
+# endif
+# endif
+
+/*
+ * Applications should use -DOPENSSL_API_COMPAT=<version> to suppress the
+ * declarations of functions deprecated in or before <version>. If this is
+ * undefined, the value of the macro OPENSSL_CONFIGURED_API (defined in
+ * <openssl/opensslconf.h>) is the default.
+ *
+ * For any version number up until version 1.1.x, <version> is expected to be
+ * the calculated version number 0xMNNFFPPSL.
+ * For version numbers 3.0 and on, <version> is expected to be a computation
+ * of the major and minor numbers in decimal using this formula:
+ *
+ * MAJOR * 10000 + MINOR * 100
+ *
+ * So version 3.0 becomes 30000, version 3.2 becomes 30200, etc.
+ */
+
+/*
+ * We use the OPENSSL_API_COMPAT value to define API level macros. These
+ * macros are used to enable or disable features at that API version boundary.
+ */
+
+# ifdef OPENSSL_API_LEVEL
+# error "OPENSSL_API_LEVEL must not be defined by application"
+# endif
+
+/*
+ * We figure out what API level was intended by simple numeric comparison.
+ * The lowest old style number we recognise is 0x00908000L, so we take some
+ * safety margin and assume that anything below 0x00900000L is a new style
+ * number. This allows new versions up to and including v943.71.83.
+ */
+# ifdef OPENSSL_API_COMPAT
+# if OPENSSL_API_COMPAT < 0x900000L
+# define OPENSSL_API_LEVEL (OPENSSL_API_COMPAT)
+# else
+# define OPENSSL_API_LEVEL \
+ (((OPENSSL_API_COMPAT >> 28) & 0xF) * 10000 \
+ + ((OPENSSL_API_COMPAT >> 20) & 0xFF) * 100 \
+ + ((OPENSSL_API_COMPAT >> 12) & 0xFF))
+# endif
+# endif
+
+/*
+ * If OPENSSL_API_COMPAT wasn't given, we use default numbers to set
+ * the API compatibility level.
+ */
+# ifndef OPENSSL_API_LEVEL
+# if OPENSSL_CONFIGURED_API > 0
+# define OPENSSL_API_LEVEL (OPENSSL_CONFIGURED_API)
+# else
+# define OPENSSL_API_LEVEL \
+ (OPENSSL_VERSION_MAJOR * 10000 + OPENSSL_VERSION_MINOR * 100)
+# endif
+# endif
+
+# if OPENSSL_API_LEVEL > OPENSSL_CONFIGURED_API
+# error "The requested API level higher than the configured API compatibility level"
+# endif
+
+/*
+ * Check of sane values.
+ */
+/* Can't go higher than the current version. */
+# if OPENSSL_API_LEVEL > (OPENSSL_VERSION_MAJOR * 10000 + OPENSSL_VERSION_MINOR * 100)
+# error "OPENSSL_API_COMPAT expresses an impossible API compatibility level"
+# endif
+/* OpenSSL will have no version 2.y.z */
+# if OPENSSL_API_LEVEL < 30000 && OPENSSL_API_LEVEL >= 20000
+# error "OPENSSL_API_COMPAT expresses an impossible API compatibility level"
+# endif
+/* Below 0.9.8 is unacceptably low */
+# if OPENSSL_API_LEVEL < 908
+# error "OPENSSL_API_COMPAT expresses an impossible API compatibility level"
+# endif
+
+/*
+ * Define macros for deprecation purposes. We always define the macros
+ * DEPERECATEDIN_{major}_{minor}() for all OpenSSL versions we care for,
+ * and OPENSSL_NO_DEPRECATED_{major}_{minor} to be used to check if
+ * removal of deprecated functions applies on that particular version.
+ */
+
+# undef OPENSSL_NO_DEPRECATED_3_0
+# undef OPENSSL_NO_DEPRECATED_1_1_1
+# undef OPENSSL_NO_DEPRECATED_1_1_0
+# undef OPENSSL_NO_DEPRECATED_1_0_2
+# undef OPENSSL_NO_DEPRECATED_1_0_1
+# undef OPENSSL_NO_DEPRECATED_1_0_0
+# undef OPENSSL_NO_DEPRECATED_0_9_8
+
+# if OPENSSL_API_LEVEL >= 30000
+# ifndef OPENSSL_NO_DEPRECATED
+# define DEPRECATEDIN_3_0(f) DECLARE_DEPRECATED(f)
+# else
+# define DEPRECATEDIN_3_0(f)
+# define OPENSSL_NO_DEPRECATED_3_0
+# endif
+# else
+# define DEPRECATEDIN_3_0(f) f;
+# endif
+# if OPENSSL_API_LEVEL >= 10101
+# ifndef OPENSSL_NO_DEPRECATED
+# define DEPRECATEDIN_1_1_1(f) DECLARE_DEPRECATED(f)
+# else
+# define DEPRECATEDIN_1_1_1(f)
+# define OPENSSL_NO_DEPRECATED_1_1_1
+# endif
+# else
+# define DEPRECATEDIN_1_1_1(f) f;
+# endif
+# if OPENSSL_API_LEVEL >= 10100
+# ifndef OPENSSL_NO_DEPRECATED
+# define DEPRECATEDIN_1_1_0(f) DECLARE_DEPRECATED(f)
+# else
+# define DEPRECATEDIN_1_1_0(f)
+# define OPENSSL_NO_DEPRECATED_1_1_0
+# endif
+# else
+# define DEPRECATEDIN_1_1_0(f) f;
+# endif
+# if OPENSSL_API_LEVEL >= 10002
+# ifndef OPENSSL_NO_DEPRECATED
+# define DEPRECATEDIN_1_0_2(f) DECLARE_DEPRECATED(f)
+# else
+# define DEPRECATEDIN_1_0_2(f)
+# define OPENSSL_NO_DEPRECATED_1_0_2
+# endif
+# else
+# define DEPRECATEDIN_1_0_2(f) f;
+# endif
+# if OPENSSL_API_LEVEL >= 10001
+# ifndef OPENSSL_NO_DEPRECATED
+# define DEPRECATEDIN_1_0_1(f) DECLARE_DEPRECATED(f)
+# else
+# define DEPRECATEDIN_1_0_1(f)
+# define OPENSSL_NO_DEPRECATED_1_0_1
+# endif
+# else
+# define DEPRECATEDIN_1_0_1(f) f;
+# endif
+# if OPENSSL_API_LEVEL >= 10000
+# ifndef OPENSSL_NO_DEPRECATED
+# define DEPRECATEDIN_1_0_0(f) DECLARE_DEPRECATED(f)
+# else
+# define DEPRECATEDIN_1_0_0(f)
+# define OPENSSL_NO_DEPRECATED_1_0_0
+# endif
+# else
+# define DEPRECATEDIN_1_0_0(f) f;
+# endif
+# if OPENSSL_API_LEVEL >= 908
+# ifndef OPENSSL_NO_DEPRECATED
+# define DEPRECATEDIN_0_9_8(f) DECLARE_DEPRECATED(f)
+# else
+# define DEPRECATEDIN_0_9_8(f)
+# define OPENSSL_NO_DEPRECATED_0_9_8
+# endif
+# else
+# define DEPRECATEDIN_0_9_8(f) f;
+# endif
+
+/*
+ * Make our own variants of __FILE__ and __LINE__, depending on configuration
+ */
+
+# ifndef OPENSSL_FILE
+# ifdef OPENSSL_NO_FILENAMES
+# define OPENSSL_FILE ""
+# define OPENSSL_LINE 0
+# else
+# define OPENSSL_FILE __FILE__
+# define OPENSSL_LINE __LINE__
+# endif
+# endif
+
+/*
+ * __func__ was standardized in C99, so for any compiler that claims
+ * to implement that language level or newer, we assume we can safely
+ * use that symbol.
+ *
+ * GNU C also provides __FUNCTION__ since version 2, which predates
+ * C99. We can, however, only use this if __STDC_VERSION__ exists,
+ * as it's otherwise not allowed according to ISO C standards (C90).
+ * (compiling with GNU C's -pedantic tells us so)
+ *
+ * If none of the above applies, we check if the compiler is MSVC,
+ * and use __FUNCTION__ if that's the case.
+ */
+# ifndef OPENSSL_FUNC
+# if defined(__STDC_VERSION__)
+# if __STDC_VERSION__ >= 199901L
+# define OPENSSL_FUNC __func__
+# elif defined(__GNUC__) && __GNUC__ >= 2
+# define OPENSSL_FUNC __FUNCTION__
+# endif
+# elif defined(_MSC_VER)
+# define OPENSSL_FUNC __FUNCTION__
+# endif
+/*
+ * If all these possibilities are exhausted, we give up and use a
+ * static string.
+ */
+# ifndef OPENSSL_FUNC
+# define OPENSSL_FUNC "(unknown function)"
+# endif
+# endif
+
+#endif /* OPENSSL_MACROS_H */
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