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xts_archive: Check if the file is nullptr prior to parsing

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Fixes an access violation where the file no longer exists at the specified path while being parsed.
This commit is contained in:
Morph 2020-07-20 10:30:25 -04:00
parent 2ec852dd9f
commit ed46f3c62a
1 changed files with 9 additions and 5 deletions
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14
src/core/file_sys/xts_archive.cpp
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@ -70,14 +70,18 @@ NAX::NAX(VirtualFile file_, std::array<u8, 0x10> nca_id)
NAX::~NAX() = default;
Loader::ResultStatus NAX::Parse(std::string_view path) {
if (file->ReadObject(header.get()) != sizeof(NAXHeader))
if (file == nullptr) {
return Loader::ResultStatus::ErrorNullFile;
}
if (file->ReadObject(header.get()) != sizeof(NAXHeader)) {
return Loader::ResultStatus::ErrorBadNAXHeader;
if (header->magic != Common::MakeMagic('N', 'A', 'X', '0'))
}
if (header->magic != Common::MakeMagic('N', 'A', 'X', '0')) {
return Loader::ResultStatus::ErrorBadNAXHeader;
if (file->GetSize() < NAX_HEADER_PADDING_SIZE + header->file_size)
}
if (file->GetSize() < NAX_HEADER_PADDING_SIZE + header->file_size) {
return Loader::ResultStatus::ErrorIncorrectNAXFileSize;
}
keys.DeriveSDSeedLazy();
std::array<Core::Crypto::Key256, 2> sd_keys{};