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Add <opensslfeatures.h> to ease migration from OpenSSL.

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The <opensslfeatures.h> header provides #defines which are normally
declared by OpenSSL when features are disabled.

This way applications are able to detect which features were removed
from BoringSSL and use it as drop-in replacement for OpenSSL.

Inspired by LibreSSL, which provides similar header.

Change-Id: If4352743fd938267e2640fb09ca851464b9240b9
Signed-off-by: Piotr Sikora <piotr@cloudflare.com>
Reviewed-on: https://boringssl-review.googlesource.com/1191
Reviewed-by: Adam Langley <agl@google.com>
This commit is contained in:
Piotr Sikora 2014-07-14 19:21:44 -07:00 committed by Adam Langley
parent 108300573f
commit 987b8f1e71
2 changed files with 57 additions and 0 deletions
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2
include/openssl/base.h
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@ -58,6 +58,8 @@
#include <string.h>
#include <sys/types.h>
#include <openssl/opensslfeatures.h>
#if defined(__x86_64) || defined(_M_AMD64) || defined(_M_X64)
#define OPENSSL_64_BIT
#define OPENSSL_X86_64

55
include/openssl/opensslfeatures.h Normal file
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@ -0,0 +1,55 @@
/* Copyright (c) 2014, Google Inc.
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
/* This header is provided in order to make compiling against code that expects
OpenSSL easier. */
#ifndef OPENSSL_HEADER_OPENSSLFEATURES_H
#define OPENSSL_HEADER_OPENSSLFEATURES_H
#define OPENSSL_NO_BF
#define OPENSSL_NO_CAMELLIA
#define OPENSSL_NO_CAST
#define OPENSSL_NO_CMS
#define OPENSSL_NO_COMP
#define OPENSSL_NO_DANE
#define OPENSSL_NO_DEPRECATED
#define OPENSSL_NO_DYNAMIC_ENGINE
#define OPENSSL_NO_ENGINE
#define OPENSSL_NO_GMP
#define OPENSSL_NO_GOST
#define OPENSSL_NO_HEARTBEATS
#define OPENSSL_NO_HW
#define OPENSSL_NO_IDEA
#define OPENSSL_NO_JPAKE
#define OPENSSL_NO_KRB5
#define OPENSSL_NO_MD2
#define OPENSSL_NO_MD4
#define OPENSSL_NO_MDC2
#define OPENSSL_NO_OCSP
#define OPENSSL_NO_RC2
#define OPENSSL_NO_RC5
#define OPENSSL_NO_RFC3779
#define OPENSSL_NO_RIPEMD
#define OPENSSL_NO_SCTP
#define OPENSSL_NO_SEED
#define OPENSSL_NO_SRP
#define OPENSSL_NO_SSL2
#define OPENSSL_NO_STATIC_ENGINE
#define OPENSSL_NO_STORE
#define OPENSSL_NO_WHIRLPOOL
#endif /* OPENSSL_HEADER_OPENSSLFEATURES_H */