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Use the system's sha2 library if it's available. Fixes #4217

This commit is contained in:
David Sansome 2014-09-25 23:09:13 +10:00
parent 1c1ea31f49
commit 7b651136d8
3 changed files with 28 additions and 10 deletions
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17
CMakeLists.txt
View File

@ -385,10 +385,19 @@ if(GMOCK_INCLUDE_DIRS)
endif(GTEST_INCLUDE_DIRS)
endif(GMOCK_INCLUDE_DIRS)
# Never use the system's sha2.
add_subdirectory(3rdparty/sha2)
set(SHA2_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/sha2)
set(SHA2_LIBRARIES sha2)
# Use the system's sha2 if it's available.
find_path(SHA2_INCLUDE_DIRS sha2.h)
find_library(SHA2_LIBRARIES sha2)
if(SHA2_LIBRARIES AND SHA2_INCLUDE_DIRS)
message(STATUS "Using system sha2 library")
set(USE_SYSTEM_SHA2 ON)
else()
message(STATUS "Using builtin sha2 library")
set(USE_SYSTEM_SHA2 OFF)
add_subdirectory(3rdparty/sha2)
set(SHA2_INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/3rdparty/sha2)
set(SHA2_LIBRARIES sha2)
endif()
# Use our 3rdparty chromaprint if a system one wasn't found
if(NOT CHROMAPRINT_FOUND)

1
src/config.h.in
View File

@ -45,5 +45,6 @@
#cmakedefine TAGLIB_HAS_OPUS
#cmakedefine USE_INSTALL_PREFIX
#cmakedefine USE_SYSTEM_PROJECTM
#cmakedefine USE_SYSTEM_SHA2
#endif // CONFIG_H_IN

20
src/core/utilities.cpp
View File

@ -40,6 +40,7 @@
#include "core/application.h"
#include "core/logging.h"
#include "config.h"
#include "timeconstants.h"
#include "sha2.h"
@ -453,15 +454,22 @@ QByteArray HmacSha1(const QByteArray& key, const QByteArray& data) {
}
QByteArray Sha256(const QByteArray& data) {
clementine_sha2::SHA256_CTX context;
clementine_sha2::SHA256_Init(&context);
clementine_sha2::SHA256_Update(
#ifndef USE_SYSTEM_SHA2
using clementine_sha2::SHA256_CTX;
using clementine_sha2::SHA256_Init;
using clementine_sha2::SHA256_Update;
using clementine_sha2::SHA256_Final;
using clementine_sha2::SHA256_DIGEST_LENGTH;
#endif
SHA256_CTX context;
SHA256_Init(&context);
SHA256_Update(
&context, reinterpret_cast<const quint8*>(data.constData()),
data.length());
QByteArray ret(clementine_sha2::SHA256_DIGEST_LENGTH, '\0');
clementine_sha2::SHA256_Final(reinterpret_cast<quint8*>(ret.data()),
&context);
QByteArray ret(SHA256_DIGEST_LENGTH, '\0');
SHA256_Final(reinterpret_cast<quint8*>(ret.data()), &context);
return ret;
}