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Merge pull request #2280 from lioncash/nso

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loader/nso: Minor refactoring
This commit is contained in:
bunnei
2019-03-23 13:46:09 -04:00
committed by GitHub
parent 819dd93257 f3297d8cd1
commit 6af322a347
3 changed files with 93 additions and 74 deletions
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25
src/core/file_sys/patch_manager.cpp
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@@ -20,6 +20,7 @@
#include "core/file_sys/vfs_vector.h"
#include "core/hle/service/filesystem/filesystem.h"
#include "core/loader/loader.h"
#include "core/loader/nso.h"
#include "core/settings.h"
namespace FileSys {
@@ -32,14 +33,6 @@ constexpr std::array<const char*, 14> EXEFS_FILE_NAMES{
"subsdk3", "subsdk4", "subsdk5", "subsdk6", "subsdk7", "subsdk8", "subsdk9",
};
struct NSOBuildHeader {
u32_le magic;
INSERT_PADDING_BYTES(0x3C);
std::array<u8, 0x20> build_id;
INSERT_PADDING_BYTES(0xA0);
};
static_assert(sizeof(NSOBuildHeader) == 0x100, "NSOBuildHeader has incorrect size.");
std::string FormatTitleVersion(u32 version, TitleVersionFormat format) {
std::array<u8, sizeof(u32)> bytes{};
bytes[0] = version % SINGLE_BYTE_MODULUS;
@@ -163,14 +156,16 @@ std::vector<VirtualFile> PatchManager::CollectPatches(const std::vector<VirtualD
}
std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso) const {
if (nso.size() < 0x100)
if (nso.size() < sizeof(Loader::NSOHeader)) {
return nso;
}
NSOBuildHeader header;
std::memcpy(&header, nso.data(), sizeof(NSOBuildHeader));
Loader::NSOHeader header;
std::memcpy(&header, nso.data(), sizeof(header));
if (header.magic != Common::MakeMagic('N', 'S', 'O', '0'))
if (header.magic != Common::MakeMagic('N', 'S', 'O', '0')) {
return nso;
}
const auto build_id_raw = Common::HexArrayToString(header.build_id);
const auto build_id = build_id_raw.substr(0, build_id_raw.find_last_not_of('0') + 1);
@@ -213,9 +208,11 @@ std::vector<u8> PatchManager::PatchNSO(const std::vector<u8>& nso) const {
}
}
if (out.size() < 0x100)
if (out.size() < sizeof(Loader::NSOHeader)) {
return nso;
std::memcpy(out.data(), &header, sizeof(NSOBuildHeader));
}
std::memcpy(out.data(), &header, sizeof(header));
return out;
}