Fixes for MSVC

CMakeLists.txt

@@ -24,6 +24,10 @@ if(NOT CMAKE_BUILD_TYPE)
     set(CMAKE_BUILD_TYPE Release CACHE INTERNAL "CMAKE_BUILD_TYPE")
 endif(NOT CMAKE_BUILD_TYPE)
 
+# The MSVC version on AppVeyor CI needs this
+if(MSVC)
+  add_definitions(/bigobj)
+endif()
 
 add_subdirectory(vendor)
 add_subdirectory(src)

src/blockstore/implementations/caching/cache/Cache.h

@@ -132,7 +132,7 @@ void Cache<Key, Value, MAX_ENTRIES>::_deleteOldEntriesParallel() {
 template<class Key, class Value, uint32_t MAX_ENTRIES>
 void Cache<Key, Value, MAX_ENTRIES>::_deleteMatchingEntriesAtBeginningParallel(std::function<bool (const CacheEntry<Key, Value> &)> matches) {
   // Twice the number of cores, so we use full CPU even if half the threads are doing I/O
-  unsigned int numThreads = 2 * std::max(1u, std::thread::hardware_concurrency());
+  unsigned int numThreads = 2 * (std::max)(1u, std::thread::hardware_concurrency());
   std::vector<std::future<void>> waitHandles;
   for (unsigned int i = 0; i < numThreads; ++i) {
     waitHandles.push_back(std::async(std::launch::async, [this, matches] {

src/cpp-utils/random/ThreadsafeRandomDataBuffer.h

@@ -57,7 +57,7 @@ namespace cpputils {
         _dataAddedCv.wait(lock, [this] {
            return _buffer.size() > 0;
         });
-        size_t gettableBytes = std::min(_buffer.size(), numBytes);
+        size_t gettableBytes = (std::min)(_buffer.size(), numBytes);
         _buffer.get(target, gettableBytes);
         _dataGottenCv.notify_all();
         return gettableBytes;

src/cpp-utils/value_type/ValueType.h

@@ -54,8 +54,8 @@ public:
     using underlying_type = UnderlyingType;
     using concrete_type = ConcreteType;
 
-    constexpr IdValueType(IdValueType&& rhs) noexcept(noexcept(UnderlyingType(std::move(rhs.value_)))) = default;
+    constexpr IdValueType(IdValueType&& rhs) noexcept(noexcept(UnderlyingType(std::move(std::declval<UnderlyingType>())))) = default;
-    constexpr IdValueType(const IdValueType& rhs) noexcept(noexcept(UnderlyingType(rhs.value_))) = default;
+    constexpr IdValueType(const IdValueType& rhs) noexcept(noexcept(UnderlyingType(std::declval<UnderlyingType>()))) = default;
     constexpr IdValueType& operator=(IdValueType&& rhs) noexcept(noexcept(*std::declval<UnderlyingType*>() = std::move(rhs.value_))) {
         value_ = std::move(rhs.value_);
         return *this;

src/cryfs-cli/program_options/Parser.cpp

@@ -11,6 +11,7 @@ namespace bf = boost::filesystem;
 using namespace cryfs::program_options;
 using cryfs::CryConfigConsole;
 using cryfs::CryfsException;
+using cryfs::ErrorCode;
 using std::pair;
 using std::vector;
 using std::cerr;

src/cryfs/filesystem/fsblobstore/SymlinkBlob.cpp

@@ -28,10 +28,10 @@ unique_ref<SymlinkBlob> SymlinkBlob::InitializeSymlink(unique_ref<Blob> blob, co
 }
 
 bf::path SymlinkBlob::_readTargetFromBlob(const FsBlobView &blob) {
-  char targetStr[blob.size() + 1]; // +1 because of the nullbyte
+  auto targetStr = std::make_unique<char[]>(blob.size() + 1); // +1 because of the nullbyte
-  blob.read(targetStr, 0, blob.size());
+  blob.read(targetStr.get(), 0, blob.size());
   targetStr[blob.size()] = '\0';
-  return targetStr;
+  return targetStr.get();
 }
 
 const bf::path &SymlinkBlob::target() const {

src/cryfs/filesystem/fsblobstore/utils/DirEntryList.cpp

@@ -235,8 +235,8 @@ bool DirEntryList::updateAccessTimestampForChild(const blockstore::BlockId &bloc
     const timespec lastModificationTime = found->lastModificationTime();
     const timespec now = cpputils::time::now();
     const timespec yesterday {
-        .tv_sec = now.tv_sec - 60*60*24,
+        /*.tv_sec = */ now.tv_sec - 60*60*24,
-        .tv_nsec = now.tv_nsec
+        /*.tv_nsec = */ now.tv_nsec
     };
     bool changed = false;
     if (lastAccessTime < lastModificationTime || lastAccessTime < yesterday) {

src/cryfs/localstate/LocalStateMetadata.cpp

@@ -114,8 +114,8 @@ LocalStateMetadata LocalStateMetadata::_deserialize(istream& stream) {
   string encryptionKeyDigest = pt.get<string>("encryptionKey.hash");
 
   return LocalStateMetadata(myClientId, Hash{
-      .digest = cpputils::hash::Digest::FromString(encryptionKeyDigest),
+      /*.digest = */ cpputils::hash::Digest::FromString(encryptionKeyDigest),
-      .salt = cpputils::hash::Salt::FromString(encryptionKeySalt)
+      /*.salt = */ cpputils::hash::Salt::FromString(encryptionKeySalt)
   });
 }