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- /*
- * 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
- */
- #include <openssl/opensslconf.h>
- #ifndef OPENSSL_MACROS_H
- # define OPENSSL_MACROS_H
- /*
- * 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;
- /*
- * 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_API_MIN above 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 3.0.0 and
- * on, <version> is expected to be only the major version number (i.e. 3 for
- * version 3.0.0).
- */
- # ifndef DECLARE_DEPRECATED
- # define DECLARE_DEPRECATED(f) f;
- # 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
- /*
- * We convert the OPENSSL_API_COMPAT value to an API level. The API level
- * is the major version number for 3.0.0 and on. For earlier versions, it
- * uses this scheme, which is close enough for our purposes:
- *
- * 0.x.y 0 (0.9.8 was the last release in this series)
- * 1.0.x 1 (1.0.2 was the last release in this series)
- * 1.1.x 2 (1.1.1 was the last release in this series)
- */
- /* In case someone defined both */
- # if defined(OPENSSL_API_COMPAT) && defined(OPENSSL_API_LEVEL)
- # error "Disallowed to define both OPENSSL_API_COMPAT and OPENSSL_API_LEVEL"
- # endif
- # ifndef OPENSSL_API_COMPAT
- # define OPENSSL_API_LEVEL OPENSSL_MIN_API
- # else
- # if (OPENSSL_API_COMPAT < 0x1000L) /* Major version numbers up to 16777215 */
- # define OPENSSL_API_LEVEL OPENSSL_API_COMPAT
- # elif (OPENSSL_API_COMPAT & 0xF0000000L) == 0x00000000L
- # define OPENSSL_API_LEVEL 0
- # elif (OPENSSL_API_COMPAT & 0xFFF00000L) == 0x10000000L
- # define OPENSSL_API_LEVEL 1
- # elif (OPENSSL_API_COMPAT & 0xFFF00000L) == 0x10100000L
- # define OPENSSL_API_LEVEL 2
- # else
- /* Major number 3 to 15 */
- # define OPENSSL_API_LEVEL ((OPENSSL_API_COMPAT >> 28) & 0xF)
- # endif
- # endif
- /*
- * Define API level check macros up to what makes sense. Since we
- * do future deprecations, we define one API level beyond the current
- * major version number.
- */
- # if OPENSSL_API_LEVEL < 4
- # define DEPRECATEDIN_4(f) DECLARE_DEPRECATED(f)
- # define OPENSSL_API_4 0
- # else
- # define DEPRECATEDIN_4(f)
- # define OPENSSL_API_4 1
- # endif
- # if OPENSSL_API_LEVEL < 3
- # define DEPRECATEDIN_3(f) DECLARE_DEPRECATED(f)
- # define OPENSSL_API_3 0
- # else
- # define DEPRECATEDIN_3(f)
- # define OPENSSL_API_3 1
- # endif
- # if OPENSSL_API_LEVEL < 2
- # define DEPRECATEDIN_1_1_0(f) DECLARE_DEPRECATED(f)
- # define OPENSSL_API_1_1_0 0
- # else
- # define DEPRECATEDIN_1_1_0(f)
- # define OPENSSL_API_1_1_0 1
- # endif
- # if OPENSSL_API_LEVEL < 1
- # define DEPRECATEDIN_1_0_0(f) DECLARE_DEPRECATED(f)
- # define OPENSSL_API_1_0_0 0
- # else
- # define DEPRECATEDIN_1_0_0(f)
- # define OPENSSL_API_1_0_0 1
- # endif
- # if OPENSSL_API_LEVEL < 0
- # define DEPRECATEDIN_0_9_8(f) DECLARE_DEPRECATED(f)
- # define OPENSSL_API_0_9_8 0
- # else
- # define DEPRECATEDIN_0_9_8(f)
- # define OPENSSL_API_0_9_8 1
- # endif
- # 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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