Fetch nowide on Windows

Filenames are now unconditionally encoded/decoded as
Shift-JIS, which provides a reasonable fallback to
7-bit ASCII.

.gitignore

@@ -4,3 +4,7 @@ version.h
 .DS_Store
 *.autosave
 docs/*
+.idea/
+cmake-build-*
+build/
+out/

.gitmodules

@@ -1,3 +1,4 @@
 [submodule "logvisor"]
 	path = logvisor
-	url = https://github.com/AxioDL/logvisor.git
+	url = ../logvisor.git
+	branch = master

CMakeLists.txt

@@ -1,18 +1,111 @@
 if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
-cmake_minimum_required(VERSION 3.1.0 FATAL_ERROR) # because of CMAKE_CXX_STANDARD
-project(nod)
-set(CMAKE_CXX_STANDARD 14)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
+  cmake_minimum_required(VERSION 3.10 FATAL_ERROR) # because of c++17
+  project(nod VERSION 0.1)
+
+  if (MSVC)
+    # Shaddup MSVC
+    add_compile_definitions(UNICODE=1 _UNICODE=1 __SSE__=1
+        _CRT_SECURE_NO_WARNINGS=1 D_SCL_SECURE_NO_WARNINGS=1
+        _SCL_SECURE_NO_DEPRECATE=1 _CRT_NONSTDC_NO_WARNINGS=1
+        _ENABLE_EXTENDED_ALIGNED_STORAGE=1 NOMINMAX=1)
+    add_compile_options(/IGNORE:4221 /wd4018 /wd4800 /wd4005 /wd4311 /wd4068
+        /wd4267 /wd4244 /wd4200 /wd4305 /wd4067 /wd4146 /wd4309 /wd4805 /utf-8 ${VS_OPTIONS})
+
+    add_compile_options(
+      # Disable exceptions
+      $<$<COMPILE_LANGUAGE:CXX>:/EHsc->
+
+      # Disable RTTI
+      $<$<COMPILE_LANGUAGE:CXX>:/GR->
+
+      # Enforce various standards compliant behavior.
+      $<$<COMPILE_LANGUAGE:CXX>:/permissive->
+
+      # Enable standard volatile semantics.
+      $<$<COMPILE_LANGUAGE:CXX>:/volatile:iso>
+
+      # Reports the proper value for the __cplusplus preprocessor macro.
+      $<$<COMPILE_LANGUAGE:CXX>:/Zc:__cplusplus>
+
+      # Use latest C++ standard.
+      $<$<COMPILE_LANGUAGE:CXX>:/std:c++latest>
+    )
+    add_compile_definitions(FMT_EXCEPTIONS=0 _HAS_EXCEPTIONS=0)
+
+    if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+      # Flags for MSVC (not clang-cl)
+      add_compile_options(
+        # Allow constexpr variables to have explicit external linkage.
+        $<$<COMPILE_LANGUAGE:CXX>:/Zc:externConstexpr>
+
+        # Assume that new throws exceptions, allowing better code generation.
+        $<$<COMPILE_LANGUAGE:CXX>:/Zc:throwingNew>
+
+        # Link-time Code Generation for Release builds
+        $<$<OR:$<CONFIG:Release>,$<CONFIG:RelWithDebInfo>>:/GL>
+      )
+
+      # Link-time Code Generation for Release builds
+      set(CMAKE_STATIC_LINKER_FLAGS_RELEASE "/LTCG")
+      set(CMAKE_STATIC_LINKER_FLAGS_RELWITHDEBINFO "/LTCG")
+      set(CMAKE_EXE_LINKER_FLAGS_RELEASE "/RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO")
+      set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO "/DEBUG /RELEASE /LTCG /OPT:REF /OPT:ICF /INCREMENTAL:NO /DEBUGTYPE:cv,fixup")
+    endif()
+  else()
+    set(CMAKE_CXX_STANDARD 17)
+    set(CMAKE_CXX_STANDARD_REQUIRED ON)
+  endif()
 endif()
 
-if (NOT TARGET logvisor)
-    add_subdirectory(logvisor)
-    set(LOGVISOR_INCLUDE_DIR logvisor/include)
-endif()
+include (CMakePackageConfigHelpers)
 
-include_directories(include ${LOGVISOR_INCLUDE_DIR})
-file(GLOB NOD_HEADERS include/nod/*.h*)
+if (WIN32 AND NOT TARGET nowide)
+  include(FetchContent)
+  FetchContent_Declare(
+    nowide
+    URL https://github.com/boostorg/nowide/releases/download/v11.3.0/nowide_standalone_v11.3.0.tar.gz
+    URL_HASH SHA256=153ac93173c8de9c08e7701e471fa750f84c27e51fe329570c5aa06016591f8c
+    DOWNLOAD_EXTRACT_TIMESTAMP TRUE
+    EXCLUDE_FROM_ALL
+  )
+  FetchContent_MakeAvailable(nowide)
+endif ()
+
+if(NOT TARGET spdlog)
+  find_package(spdlog REQUIRED)
+endif()
 
 add_subdirectory(lib)
 add_subdirectory(driver)
-install(DIRECTORY include/nod DESTINATION include/nod)
+
+if (CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+set(version_config_file "${PROJECT_BINARY_DIR}/nodConfigVersion.cmake")
+set(config_file "${PROJECT_BINARY_DIR}/nodConfig.cmake")
+set(config_install_dir "lib/cmake/nod")
+
+# Install the target config files
+install(
+    EXPORT nodTargets
+    NAMESPACE "nod::"
+    DESTINATION "${config_install_dir}"
+)
+
+# Generate version config file
+write_basic_package_version_file(
+    "${version_config_file}"
+    COMPATIBILITY SameMajorVersion
+)
+
+# Generate config file
+configure_package_config_file(
+    "Config.cmake.in"
+    "${config_file}"
+    INSTALL_DESTINATION "lib/cmake/nod"
+)
+
+# Install the config files
+install(
+    FILES "${config_file}" "${version_config_file}"
+    DESTINATION ${config_install_dir}
+)
+endif()

Config.cmake.in

@@ -0,0 +1,4 @@
+@PACKAGE_INIT@
+
+include("${CMAKE_CURRENT_LIST_DIR}/nodTargets.cmake")
+check_required_components(nod)

README.md

@@ -34,19 +34,19 @@ a content pipeline using the `nod::DiscBuilderBase` interface.
 ```cpp
 /* Sample logging lambda for progress feedback */
 size_t lastIdx = -1;
-auto progFunc = [&](size_t idx, const nod::SystemString& name, size_t bytes)
+auto progFunc = [&](size_t idx, const std::string& name, size_t bytes)
 {
     if (idx != lastIdx)
     {
         lastIdx = idx;
         /* NOD provides I/O wrappers using wchar_t on Windows;
          * _S() conditionally makes string-literals wide */
-        nod::Printf(_S("\n"));
+        fmt::print(_S("\n"));
     }
     if (bytes != -1)
-        nod::Printf(_S("\r%s %" PRISize " B"), name.c_str(), bytes);
+        fmt::print(_S("\r{} {} B"), name, bytes);
     else
-        nod::Printf(_S("\r%s"), name.c_str());
+        fmt::print(_S("\r{}"), name);
     fflush(stdout);
 };
 

driver/CMakeLists.txt

@@ -1,11 +1,13 @@
 add_executable(nodtool main.cpp)
 
-target_link_libraries(nodtool nod logvisor)
+target_link_libraries(nodtool nod spdlog::spdlog)
 if (NOT WIN32)
     target_link_libraries(nodtool pthread)
-    if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
+    if (${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
         target_link_libraries(nodtool execinfo)
-    else()
+    else ()
         target_link_libraries(nodtool dl)
-    endif()
-endif()
+    endif ()
+else ()
+    target_sources(nodtool PRIVATE app.manifest)
+endif ()

driver/app.manifest

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
+<assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1">
+  <assemblyIdentity type="win32" name="..." version="6.0.0.0"/>
+  <application>
+    <windowsSettings>
+      <activeCodePage xmlns="http://schemas.microsoft.com/SMI/2019/WindowsSettings">UTF-8</activeCodePage>
+    </windowsSettings>
+  </application>
+</assembly>

driver/main.cpp

@@ -1,265 +1,316 @@
-#include <stdio.h>
-#include <string.h>
-#include "logvisor/logvisor.hpp"
-#include "nod/nod.hpp"
+#include <array>
+#include <cstddef>
+#include <cstdint>
+#include <cstdio>
+#include <cstring>
+#if _WIN32
+#include <fcntl.h>
+#include <io.h>
+#endif
 
-static void printHelp()
-{
-    fprintf(stderr, "Usage:\n"
-                    "  nodtool extract [-f] <image-in> [<dir-out>]\n"
-                    "  nodtool makegcn <fsroot-in> [<image-out>]\n"
-                    "  nodtool makewii <fsroot-in> [<image-out>]\n"
-                    "  nodtool mergegcn <fsroot-in> <image-in> [<image-out>]\n"
-                    "  nodtool mergewii <fsroot-in> <image-in> [<image-out>]\n");
+#include <spdlog/spdlog.h>
+
+#include <nod/DiscBase.hpp>
+#include <nod/DiscGCN.hpp>
+#include <nod/DiscWii.hpp>
+#include <nod/nod.hpp>
+#include "../lib/Util.hpp"
+
+static void printHelp() {
+  fmt::print(stderr,
+    "Usage:\n"
+    "  nodtool extract [options] <image-in> [<dir-out>]\n"
+    "  nodtool makegcn [options] <fsroot-in> [<image-out>]\n"
+    "  nodtool makewii [options] <fsroot-in> [<image-out>]\n"
+    "  nodtool mergegcn [options] <fsroot-in> <image-in> [<image-out>]\n"
+    "  nodtool mergewii [options] <fsroot-in> <image-in> [<image-out>]\n"
+    "Options:\n"
+    "  -f         Force (extract only)\n"
+    "  -v         Verbose details (extract only).\n");
 }
 
-#if NOD_UCS2
-#ifdef strcasecmp
-#undef strcasecmp
-#endif
-#define strcasecmp _wcsicmp
+#if _MSC_VER
+#include <nowide/args.hpp>
+
 #define PRISize "Iu"
-int wmain(int argc, wchar_t* argv[])
+int main(int argc, char* argv[]) {
+  nowide::args _(argc, argv);
 #else
 #define PRISize "zu"
-int main(int argc, char* argv[])
+int main(int argc, char* argv[]) {
 #endif
-{
-    if (argc < 3 ||
-        (!strcasecmp(argv[1], _S("makegcn")) && argc < 3) ||
-        (!strcasecmp(argv[1], _S("makewii")) && argc < 3) ||
-        (!strcasecmp(argv[1], _S("mergegcn")) && argc < 4) ||
-        (!strcasecmp(argv[1], _S("mergewii")) && argc < 4))
-    {
-        printHelp();
-        return 1;
+  int argidx = 1;
+  std::string errand;
+  bool verbose = false;
+  nod::ExtractionContext ctx = {true, [&](std::string_view str, float c) {
+                                  if (verbose)
+                                    fmt::print(stderr, "Current node: {}, Extraction {:g}% Complete\n", str,
+                                               c * 100.f);
+                                }};
+  while (argidx < argc) {
+    if (!nod::StrCaseCmp(argv[argidx], "-f")) {
+      ctx.force = true;
+      ++argidx;
+      continue;
+    } else if (!nod::StrCaseCmp(argv[argidx], "-v")) {
+      verbose = true;
+      ++argidx;
+      continue;
+    } else if (errand.empty()) {
+      errand = argv[argidx];
+      ++argidx;
+      continue;
+    } else {
+      break;
     }
+  }
 
-    /* Enable logging to console */
-    logvisor::RegisterStandardExceptions();
-    logvisor::RegisterConsoleLogger();
+  if (errand.empty()) {
+    printHelp();
+    return 1;
+  }
 
-    bool verbose = false;
-    nod::ExtractionContext ctx = {true,
-    [&](const std::string& str, float c) {
-        if (verbose)
-            fprintf(stderr, "Current node: %s, Extraction %g%% Complete\n", str.c_str(), c * 100.f);
-    }};
-    const nod::SystemChar* inDir = nullptr;
-    const nod::SystemChar* outDir = _S(".");
-
-    for (int a=2 ; a<argc ; ++a)
-    {
-        if (argv[a][0] == '-' && argv[a][1] == 'f')
-            ctx.force = true;
-        else if (argv[a][0] == '-' && argv[a][1] == 'v')
-            verbose = true;
-
-        else if (!inDir)
-            inDir = argv[a];
-        else
-            outDir = argv[a];
-    }
-
-    auto progFunc = [&](float prog, const nod::SystemString& name, size_t bytes)
-    {
-        nod::Printf(_S("\r                                                                      "));
-        if (bytes != -1)
-            nod::Printf(_S("\r%g%% %s %" PRISize " B"), prog * 100.f, name.c_str(), bytes);
-        else
-            nod::Printf(_S("\r%g%% %s"), prog * 100.f, name.c_str());
-        fflush(stdout);
-    };
-
-    if (!strcasecmp(argv[1], _S("extract")))
-    {
-        bool isWii;
-        std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(inDir, isWii);
-        if (!disc)
-            return 1;
-
-        nod::Mkdir(outDir, 0755);
-
-        nod::Partition* dataPart = disc->getDataPartition();
-        if (!dataPart)
-            return 1;
-
-        if (!dataPart->extractToDirectory(outDir, ctx))
-            return 1;
-    }
-    else if (!strcasecmp(argv[1], _S("makegcn")))
-    {
-        /* Pre-validate path */
-        nod::Sstat theStat;
-        if (nod::Stat(argv[2], &theStat) || !S_ISDIR(theStat.st_mode))
-        {
-            nod::LogModule.report(logvisor::Error, _S("unable to stat %s as directory"), argv[2]);
-            return 1;
-        }
-
-        if (nod::DiscBuilderGCN::CalculateTotalSizeRequired(argv[2]) == -1)
-            return 1;
-
-        nod::EBuildResult ret;
-
-        if (argc < 4)
-        {
-            nod::SystemString outPath(argv[2]);
-            outPath.append(_S(".iso"));
-            nod::DiscBuilderGCN b(outPath.c_str(), progFunc);
-            ret = b.buildFromDirectory(argv[2]);
-        }
-        else
-        {
-            nod::DiscBuilderGCN b(argv[3], progFunc);
-            ret = b.buildFromDirectory(argv[2]);
-        }
-
-        printf("\n");
-        if (ret != nod::EBuildResult::Success)
-            return 1;
-    }
-    else if (!strcasecmp(argv[1], _S("makewii")))
-    {
-        /* Pre-validate path */
-        nod::Sstat theStat;
-        if (nod::Stat(argv[2], &theStat) || !S_ISDIR(theStat.st_mode))
-        {
-            nod::LogModule.report(logvisor::Error, _S("unable to stat %s as directory"), argv[4]);
-            return 1;
-        }
-
-        bool dual = false;
-        if (nod::DiscBuilderWii::CalculateTotalSizeRequired(argv[2], dual) == -1)
-            return 1;
-
-        nod::EBuildResult ret;
-
-        if (argc < 4)
-        {
-            nod::SystemString outPath(argv[2]);
-            outPath.append(_S(".iso"));
-            nod::DiscBuilderWii b(outPath.c_str(), dual, progFunc);
-            ret = b.buildFromDirectory(argv[2]);
-        }
-        else
-        {
-            nod::DiscBuilderWii b(argv[3], dual, progFunc);
-            ret = b.buildFromDirectory(argv[2]);
-        }
-
-        printf("\n");
-        if (ret != nod::EBuildResult::Success)
-            return 1;
-    }
-    else if (!strcasecmp(argv[1], _S("mergegcn")))
-    {
-        /* Pre-validate paths */
-        nod::Sstat theStat;
-        if (nod::Stat(argv[2], &theStat) || !S_ISDIR(theStat.st_mode))
-        {
-            nod::LogModule.report(logvisor::Error, _S("unable to stat %s as directory"), argv[2]);
-            return 1;
-        }
-        if (nod::Stat(argv[3], &theStat) || !S_ISREG(theStat.st_mode))
-        {
-            nod::LogModule.report(logvisor::Error, _S("unable to stat %s as file"), argv[3]);
-            return 1;
-        }
-
-        bool isWii;
-        std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(argv[3], isWii);
-        if (!disc)
-        {
-            nod::LogModule.report(logvisor::Error, _S("unable to open image %s"), argv[3]);
-            return 1;
-        }
-        if (isWii)
-        {
-            nod::LogModule.report(logvisor::Error, _S("Wii images should be merged with 'mergewii'"));
-            return 1;
-        }
-
-        if (nod::DiscMergerGCN::CalculateTotalSizeRequired(static_cast<nod::DiscGCN&>(*disc), argv[2]) == -1)
-            return 1;
-
-        nod::EBuildResult ret;
-
-        if (argc < 5)
-        {
-            nod::SystemString outPath(argv[2]);
-            outPath.append(_S(".iso"));
-            nod::DiscMergerGCN b(outPath.c_str(), static_cast<nod::DiscGCN&>(*disc), progFunc);
-            ret = b.mergeFromDirectory(argv[2]);
-        }
-        else
-        {
-            nod::DiscMergerGCN b(argv[4], static_cast<nod::DiscGCN&>(*disc), progFunc);
-            ret = b.mergeFromDirectory(argv[2]);
-        }
-
-        printf("\n");
-        if (ret != nod::EBuildResult::Success)
-            return 1;
-    }
-    else if (!strcasecmp(argv[1], _S("mergewii")))
-    {
-        /* Pre-validate paths */
-        nod::Sstat theStat;
-        if (nod::Stat(argv[2], &theStat) || !S_ISDIR(theStat.st_mode))
-        {
-            nod::LogModule.report(logvisor::Error, _S("unable to stat %s as directory"), argv[2]);
-            return 1;
-        }
-        if (nod::Stat(argv[3], &theStat) || !S_ISREG(theStat.st_mode))
-        {
-            nod::LogModule.report(logvisor::Error, _S("unable to stat %s as file"), argv[3]);
-            return 1;
-        }
-
-        bool isWii;
-        std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(argv[3], isWii);
-        if (!disc)
-        {
-            nod::LogModule.report(logvisor::Error, _S("unable to open image %s"), argv[3]);
-            return 1;
-        }
-        if (!isWii)
-        {
-            nod::LogModule.report(logvisor::Error, _S("GameCube images should be merged with 'mergegcn'"));
-            return 1;
-        }
-
-        bool dual = false;
-        if (nod::DiscMergerWii::CalculateTotalSizeRequired(static_cast<nod::DiscWii&>(*disc), argv[2], dual) == -1)
-            return 1;
-
-        nod::EBuildResult ret;
-
-        if (argc < 5)
-        {
-            nod::SystemString outPath(argv[2]);
-            outPath.append(_S(".iso"));
-            nod::DiscMergerWii b(outPath.c_str(), static_cast<nod::DiscWii&>(*disc), dual, progFunc);
-            ret = b.mergeFromDirectory(argv[2]);
-        }
-        else
-        {
-            nod::DiscMergerWii b(argv[4], static_cast<nod::DiscWii&>(*disc), dual, progFunc);
-            ret = b.mergeFromDirectory(argv[2]);
-        }
-
-        printf("\n");
-        if (ret != nod::EBuildResult::Success)
-            return 1;
-    }
+  auto progFunc = [&](float prog, std::string_view name, size_t bytes) {
+    fmt::print("\r                                                                      ");
+    if (bytes != SIZE_MAX)
+      fmt::print("\r{:g}% {} {} B", prog * 100.f, name, bytes);
     else
-    {
+      fmt::print("\r{:g}% {}", prog * 100.f, name);
+    fflush(stdout);
+  };
+
+  if (errand == "extract") {
+    std::string imageIn;
+    std::string dirOut;
+    while (argidx < argc) {
+      if (imageIn.empty()) {
+        imageIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (dirOut.empty()) {
+        dirOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
         printHelp();
         return 1;
+      }
+    }
+    if (dirOut.empty())
+      dirOut = ".";
+
+    bool isWii;
+    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(imageIn, isWii);
+    if (!disc)
+      return 1;
+
+    nod::Mkdir(dirOut.c_str(), 0755);
+
+    nod::IPartition* dataPart = disc->getDataPartition();
+    if (!dataPart)
+      return 1;
+
+    if (!dataPart->extractToDirectory(dirOut, ctx))
+      return 1;
+  } else if (errand == "makegcn") {
+    std::string fsrootIn;
+    std::string imageOut;
+    while (argidx < argc) {
+      if (fsrootIn.empty()) {
+        fsrootIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageOut.empty()) {
+        imageOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (imageOut.empty())
+      imageOut = fsrootIn + ".gcm";
+
+    /* Pre-validate path */
+    nod::Sstat theStat;
+    if (nod::Stat(fsrootIn.c_str(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as directory");
+      return 1;
     }
 
-    nod::LogModule.report(logvisor::Info, _S("Success!"));
-    return 0;
-}
+    if (!nod::DiscBuilderGCN::CalculateTotalSizeRequired(fsrootIn))
+      return 1;
 
+    nod::EBuildResult ret;
+
+    nod::DiscBuilderGCN b(imageOut, progFunc);
+    ret = b.buildFromDirectory(fsrootIn);
+
+    fmt::print("\n");
+    if (ret != nod::EBuildResult::Success)
+      return 1;
+  } else if (errand == "makewii") {
+    std::string fsrootIn;
+    std::string imageOut;
+    while (argidx < argc) {
+      if (fsrootIn.empty()) {
+        fsrootIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageOut.empty()) {
+        imageOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (imageOut.empty())
+      imageOut = fsrootIn + ".iso";
+
+    /* Pre-validate path */
+    nod::Sstat theStat;
+    if (nod::Stat(fsrootIn.c_str(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as directory");
+      return 1;
+    }
+
+    bool dual = false;
+    if (!nod::DiscBuilderWii::CalculateTotalSizeRequired(fsrootIn, dual))
+      return 1;
+
+    nod::EBuildResult ret;
+
+    nod::DiscBuilderWii b(imageOut, dual, progFunc);
+    ret = b.buildFromDirectory(fsrootIn);
+
+    fmt::print("\n");
+    if (ret != nod::EBuildResult::Success)
+      return 1;
+  } else if (errand == "mergegcn") {
+    std::string fsrootIn;
+    std::string imageIn;
+    std::string imageOut;
+    while (argidx < argc) {
+      if (fsrootIn.empty()) {
+        fsrootIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageIn.empty()) {
+        imageIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageOut.empty()) {
+        imageOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (imageOut.empty())
+      imageOut = fsrootIn + ".gcm";
+
+    /* Pre-validate paths */
+    nod::Sstat theStat;
+    if (nod::Stat(fsrootIn.c_str(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as directory");
+      return 1;
+    }
+    if (nod::Stat(imageIn.c_str(), &theStat) || !S_ISREG(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as file");
+      return 1;
+    }
+
+    bool isWii;
+    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(imageIn, isWii);
+    if (!disc) {
+      spdlog::error("unable to open image {}");
+      return 1;
+    }
+    if (isWii) {
+      spdlog::error("Wii images should be merged with 'mergewii'");
+      return 1;
+    }
+
+    if (!nod::DiscMergerGCN::CalculateTotalSizeRequired(static_cast<nod::DiscGCN&>(*disc), fsrootIn))
+      return 1;
+
+    nod::EBuildResult ret;
+
+    nod::DiscMergerGCN b(imageOut, static_cast<nod::DiscGCN&>(*disc), progFunc);
+    ret = b.mergeFromDirectory(fsrootIn);
+
+    fmt::print("\n");
+    if (ret != nod::EBuildResult::Success)
+      return 1;
+  } else if (errand == "mergewii") {
+    std::string fsrootIn;
+    std::string imageIn;
+    std::string imageOut;
+    while (argidx < argc) {
+      if (fsrootIn.empty()) {
+        fsrootIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageIn.empty()) {
+        imageIn = argv[argidx];
+        ++argidx;
+        continue;
+      } else if (imageOut.empty()) {
+        imageOut = argv[argidx];
+        ++argidx;
+        continue;
+      } else {
+        printHelp();
+        return 1;
+      }
+    }
+    if (imageOut.empty())
+      imageOut = fsrootIn + ".iso";
+
+    /* Pre-validate paths */
+    nod::Sstat theStat;
+    if (nod::Stat(fsrootIn.c_str(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as directory");
+      return 1;
+    }
+    if (nod::Stat(imageIn.c_str(), &theStat) || !S_ISREG(theStat.st_mode)) {
+      spdlog::error("unable to stat {} as file");
+      return 1;
+    }
+
+    bool isWii;
+    std::unique_ptr<nod::DiscBase> disc = nod::OpenDiscFromImage(imageIn, isWii);
+    if (!disc) {
+      spdlog::error("unable to open image {}");
+      return 1;
+    }
+    if (!isWii) {
+      spdlog::error("GameCube images should be merged with 'mergegcn'");
+      return 1;
+    }
+
+    bool dual = false;
+    if (!nod::DiscMergerWii::CalculateTotalSizeRequired(static_cast<nod::DiscWii&>(*disc), fsrootIn, dual))
+      return 1;
+
+    nod::EBuildResult ret;
+
+    nod::DiscMergerWii b(imageOut, static_cast<nod::DiscWii&>(*disc), dual, progFunc);
+    ret = b.mergeFromDirectory(fsrootIn);
+
+    fmt::print("\n");
+    if (ret != nod::EBuildResult::Success)
+      return 1;
+  } else {
+    printHelp();
+    return 1;
+  }
+
+  spdlog::info("Success!");
+  return 0;
+}

include/nod/DirectoryEnumerator.hpp

@@ -1,73 +1,52 @@
-#ifndef __NOD_DIRECTORY_ENUMERATOR__
-#define __NOD_DIRECTORY_ENUMERATOR__
+#pragma once
 
-#include "Util.hpp"
+#include <algorithm>
+#include <cctype>
+#include <cstddef>
+#include <vector>
+#include <string>
+#include <string_view>
 
-namespace nod
-{
+namespace nod {
 
-struct CaseInsensitiveCompare
-{
-    bool operator()(const std::string& lhs, const std::string& rhs) const
-    {
-#if _WIN32
-        if (_stricmp(lhs.c_str(), rhs.c_str()) < 0)
-#else
-        if (strcasecmp(lhs.c_str(), rhs.c_str()) < 0)
-#endif
-            return true;
-        return false;
-    }
+/**
+ * @brief Case-insensitive comparator for std::map sorting
+ */
+struct CaseInsensitiveCompare {
+  // Allow heterogeneous lookup with maps that use this comparator.
+  using is_transparent = void;
 
-#if _WIN32
-    bool operator()(const std::wstring& lhs, const std::wstring& rhs) const
-    {
-        if (_wcsicmp(lhs.c_str(), rhs.c_str()) < 0)
-            return true;
-        return false;
-    }
-#endif
+  bool operator()(std::string_view lhs, std::string_view rhs) const {
+    return std::lexicographical_compare(lhs.begin(), lhs.end(), rhs.begin(), rhs.end(), [](char lhs, char rhs) {
+      return std::tolower(static_cast<unsigned char>(lhs)) < std::tolower(static_cast<unsigned char>(rhs));
+    });
+  }
 };
 
-class DirectoryEnumerator
-{
+class DirectoryEnumerator {
 public:
-    enum class Mode
-    {
-        Native,
-        DirsSorted,
-        FilesSorted,
-        DirsThenFilesSorted
-    };
-    struct Entry
-    {
-        SystemString m_path;
-        SystemString m_name;
-        size_t m_fileSz;
-        bool m_isDir;
+  enum class Mode { Native, DirsSorted, FilesSorted, DirsThenFilesSorted };
+  struct Entry {
+    std::string m_path;
+    std::string m_name;
+    size_t m_fileSz;
+    bool m_isDir;
 
-    private:
-        friend class DirectoryEnumerator;
-        Entry(SystemString&& path, const SystemChar* name, size_t sz, bool isDir)
-        : m_path(std::move(path)), m_name(name), m_fileSz(sz), m_isDir(isDir) {}
-    };
+    Entry(std::string path, std::string name, size_t sz, bool isDir)
+    : m_path(std::move(path)), m_name(std::move(name)), m_fileSz(sz), m_isDir(isDir) {}
+  };
 
 private:
-    std::vector<Entry> m_entries;
+  std::vector<Entry> m_entries;
 
 public:
-    DirectoryEnumerator(const SystemString& path, Mode mode=Mode::DirsThenFilesSorted,
-                        bool sizeSort=false, bool reverse=false, bool noHidden=false)
-    : DirectoryEnumerator(path.c_str(), mode, sizeSort, reverse, noHidden) {}
-    DirectoryEnumerator(const SystemChar* path, Mode mode=Mode::DirsThenFilesSorted,
-                        bool sizeSort=false, bool reverse=false, bool noHidden=false);
+  DirectoryEnumerator(std::string_view path, Mode mode = Mode::DirsThenFilesSorted, bool sizeSort = false,
+                      bool reverse = false, bool noHidden = false);
 
-    operator bool() const {return m_entries.size() != 0;}
-    size_t size() const {return m_entries.size();}
-    std::vector<Entry>::const_iterator begin() const {return m_entries.cbegin();}
-    std::vector<Entry>::const_iterator end() const {return m_entries.cend();}
+  explicit operator bool() const { return !m_entries.empty(); }
+  [[nodiscard]] size_t size() const { return m_entries.size(); }
+  [[nodiscard]] std::vector<Entry>::const_iterator begin() const { return m_entries.cbegin(); }
+  [[nodiscard]] std::vector<Entry>::const_iterator end() const { return m_entries.cend(); }
 };
 
-}
-
-#endif // __NOD_DIRECTORY_ENUMERATOR__
+} // namespace nod

include/nod/DiscBase.hpp

@@ -1,529 +1,468 @@
-#ifndef __NOD_DISC_BASE__
-#define __NOD_DISC_BASE__
+#pragma once
 
-#include <vector>
-#include <memory>
-#include <string>
-#include <unordered_map>
-#include <stdio.h>
-#include <stdint.h>
+#include <cstddef>
+#include <cstdint>
+#include <cstring>
 #include <functional>
-#include "Util.hpp"
-#include "IDiscIO.hpp"
-#include "IFileIO.hpp"
+#include <optional>
+#include <string>
+#include <string_view>
 
-namespace nod
-{
+#include "nod/IDiscIO.hpp"
+#include "nod/IFileIO.hpp"
+#include "nod/OSUTF.h"
+#include "nod/Endian.hpp"
 
-using FProgress = std::function<void(float totalProg, const SystemString& fileName, size_t fileBytesXfered)>;
+namespace nod {
 
-enum class EBuildResult
-{
-    Success,
-    Failed,
-    DiskFull
-};
+using FProgress = std::function<void(float totalProg, std::string_view fileName, size_t fileBytesXfered)>;
 
-enum class PartitionKind : uint32_t
-{
-    Data,
-    Update,
-    Channel
-};
-const SystemChar* getKindString(PartitionKind kind);
+enum class EBuildResult { Success, Failed, DiskFull };
+
+enum class PartitionKind : uint32_t { Data, Update, Channel };
+const char* getKindString(PartitionKind kind);
+
+class FSTNode {
+  uint32_t typeAndNameOffset;
+  uint32_t offset;
+  uint32_t length;
 
-class FSTNode
-{
-    uint32_t typeAndNameOffset;
-    uint32_t offset;
-    uint32_t length;
 public:
-    FSTNode(bool isDir, uint32_t nameOff, uint32_t off, uint32_t len)
-    {
-        typeAndNameOffset = nameOff & 0xffffff;
-        typeAndNameOffset |= isDir << 24;
-        typeAndNameOffset = SBig(typeAndNameOffset);
-        offset = SBig(off);
-        length = SBig(len);
-    }
-    inline bool isDir() const {return ((SBig(typeAndNameOffset) >> 24) != 0);}
-    inline uint32_t getNameOffset() const {return SBig(typeAndNameOffset) & 0xffffff;}
-    inline uint32_t getOffset() const {return SBig(offset);}
-    inline uint32_t getLength() const {return SBig(length);}
-    void incrementLength()
-    {
-        uint32_t orig = SBig(length);
-        ++orig;
-        length = SBig(orig);
-    }
+  FSTNode(bool isDir, uint32_t nameOff, uint32_t off, uint32_t len) {
+    typeAndNameOffset = nameOff & 0xffffff;
+    typeAndNameOffset |= isDir << 24;
+    typeAndNameOffset = SBig(typeAndNameOffset);
+    offset = SBig(off);
+    length = SBig(len);
+  }
+  bool isDir() const { return ((SBig(typeAndNameOffset) >> 24) != 0); }
+  uint32_t getNameOffset() const { return SBig(typeAndNameOffset) & 0xffffff; }
+  uint32_t getOffset() const { return SBig(offset); }
+  uint32_t getLength() const { return SBig(length); }
+  void incrementLength() {
+    uint32_t orig = SBig(length);
+    ++orig;
+    length = SBig(orig);
+  }
 };
 
-struct Header
-{
-    char m_gameID[6];
-    char m_discNum;
-    char m_discVersion;
-    char m_audioStreaming;
-    char m_streamBufSz;
-    char m_unk1[14];
-    uint32_t m_wiiMagic;
-    uint32_t m_gcnMagic;
-    char m_gameTitle[64];
-    char m_disableHashVerification;
-    char m_disableDiscEnc;
-    char m_unk2[0x39e];
-    uint32_t m_debugMonOff;
-    uint32_t m_debugLoadAddr;
-    char m_unk3[0x18];
-    uint32_t m_dolOff;
-    uint32_t m_fstOff;
-    uint32_t m_fstSz;
-    uint32_t m_fstMaxSz;
-    uint32_t m_fstMemoryAddress;
-    uint32_t m_userPosition;
-    uint32_t m_userSz;
-    uint8_t padding1[4];
+struct Header {
+  char m_gameID[6];
+  char m_discNum;
+  char m_discVersion;
+  char m_audioStreaming;
+  char m_streamBufSz;
+  char m_unk1[14];
+  uint32_t m_wiiMagic;
+  uint32_t m_gcnMagic;
+  char m_gameTitle[64];
+  char m_disableHashVerification;
+  char m_disableDiscEnc;
+  char m_unk2[0x39e];
+  uint32_t m_debugMonOff;
+  uint32_t m_debugLoadAddr;
+  char m_unk3[0x18];
+  uint32_t m_dolOff;
+  uint32_t m_fstOff;
+  uint32_t m_fstSz;
+  uint32_t m_fstMaxSz;
+  uint32_t m_fstMemoryAddress;
+  uint32_t m_userPosition;
+  uint32_t m_userSz;
+  uint8_t padding1[4];
 
-    Header() = default;
-    Header(IDiscIO& dio, bool& err)
-    {
-        auto rs = dio.beginReadStream();
-        if (!rs)
-        {
-            err = true;
-            return;
-        }
-        read(*rs);
+  Header() = default;
+  Header(IDiscIO& dio, bool& err) {
+    auto rs = dio.beginReadStream();
+    if (!rs) {
+      err = true;
+      return;
     }
+    read(*rs);
+  }
 
-    void read(IReadStream& s)
-    {
-        memset(this, 0, sizeof(*this));
-        s.read(this, sizeof(*this));
-        m_wiiMagic = SBig(m_wiiMagic);
-        m_gcnMagic = SBig(m_gcnMagic);
-        m_debugMonOff = SBig(m_debugMonOff);
-        m_debugLoadAddr = SBig(m_debugLoadAddr);
-        m_dolOff = SBig(m_dolOff);
-        m_fstOff = SBig(m_fstOff);
-        m_fstSz = SBig(m_fstSz);
-        m_fstMaxSz = SBig(m_fstMaxSz);
-        m_fstMemoryAddress = SBig(m_fstMemoryAddress);
-        m_userPosition = SBig(m_userPosition);
-        m_userSz = SBig(m_userSz);
-    }
+  void read(IReadStream& s) {
+    memset(this, 0, sizeof(*this));
+    s.read(this, sizeof(*this));
+    m_wiiMagic = SBig(m_wiiMagic);
+    m_gcnMagic = SBig(m_gcnMagic);
+    m_debugMonOff = SBig(m_debugMonOff);
+    m_debugLoadAddr = SBig(m_debugLoadAddr);
+    m_dolOff = SBig(m_dolOff);
+    m_fstOff = SBig(m_fstOff);
+    m_fstSz = SBig(m_fstSz);
+    m_fstMaxSz = SBig(m_fstMaxSz);
+    m_fstMemoryAddress = SBig(m_fstMemoryAddress);
+    m_userPosition = SBig(m_userPosition);
+    m_userSz = SBig(m_userSz);
+  }
 
-    void write(IWriteStream& ws) const
-    {
-        Header hs(*this);
-        hs.m_wiiMagic = SBig(hs.m_wiiMagic);
-        hs.m_gcnMagic = SBig(hs.m_gcnMagic);
-        hs.m_debugMonOff = SBig(hs.m_debugMonOff);
-        hs.m_debugLoadAddr = SBig(hs.m_debugLoadAddr);
-        hs.m_dolOff = SBig(hs.m_dolOff);
-        hs.m_fstOff = SBig(hs.m_fstOff);
-        hs.m_fstSz = SBig(hs.m_fstSz);
-        hs.m_fstMaxSz = SBig(hs.m_fstMaxSz);
-        hs.m_fstMemoryAddress = SBig(hs.m_fstMemoryAddress);
-        hs.m_userPosition = SBig(hs.m_userPosition);
-        hs.m_userSz = SBig(hs.m_userSz);
-        ws.write(&hs, sizeof(hs));
-    }
+  void write(IWriteStream& ws) const {
+    Header hs(*this);
+    hs.m_wiiMagic = SBig(hs.m_wiiMagic);
+    hs.m_gcnMagic = SBig(hs.m_gcnMagic);
+    hs.m_debugMonOff = SBig(hs.m_debugMonOff);
+    hs.m_debugLoadAddr = SBig(hs.m_debugLoadAddr);
+    hs.m_dolOff = SBig(hs.m_dolOff);
+    hs.m_fstOff = SBig(hs.m_fstOff);
+    hs.m_fstSz = SBig(hs.m_fstSz);
+    hs.m_fstMaxSz = SBig(hs.m_fstMaxSz);
+    hs.m_fstMemoryAddress = SBig(hs.m_fstMemoryAddress);
+    hs.m_userPosition = SBig(hs.m_userPosition);
+    hs.m_userSz = SBig(hs.m_userSz);
+    ws.write(&hs, sizeof(hs));
+  }
 };
 
 /* Currently only kept for dolphin compatibility */
-struct BI2Header
-{
-    int32_t m_debugMonitorSize;
-    int32_t m_simMemSize;
-    uint32_t m_argOffset;
-    uint32_t m_debugFlag;
-    uint32_t m_trkAddress;
-    uint32_t m_trkSz;
-    uint32_t m_countryCode;
-    uint32_t m_unk1;
-    uint32_t m_unk2;
-    uint32_t m_unk3;
-    uint32_t m_dolLimit;
-    uint32_t m_unk4;
-    uint8_t padding2[0x1FD0];
+struct BI2Header {
+  int32_t m_debugMonitorSize;
+  int32_t m_simMemSize;
+  uint32_t m_argOffset;
+  uint32_t m_debugFlag;
+  uint32_t m_trkAddress;
+  uint32_t m_trkSz;
+  uint32_t m_countryCode;
+  uint32_t m_unk1;
+  uint32_t m_unk2;
+  uint32_t m_unk3;
+  uint32_t m_dolLimit;
+  uint32_t m_unk4;
+  uint8_t padding2[0x1FD0];
 
-    void read(IReadStream& rs)
-    {
-        memset(this, 0, sizeof(*this));
-        rs.read(this, sizeof(*this));
-        m_debugMonitorSize = SBig(m_debugMonitorSize);
-        m_simMemSize = SBig(m_simMemSize);
-        m_argOffset = SBig(m_argOffset);
-        m_debugFlag = SBig(m_debugFlag);
-        m_trkAddress = SBig(m_trkAddress);
-        m_trkSz = SBig(m_trkSz);
-        m_countryCode = SBig(m_countryCode);
-        m_unk1 = SBig(m_unk1);
-        m_unk2 = SBig(m_unk2);
-        m_unk3 = SBig(m_unk3);
-        m_dolLimit = SBig(m_dolLimit);
-        m_unk4 = SBig(m_unk4);
-    }
+  void read(IReadStream& rs) {
+    memset(this, 0, sizeof(*this));
+    rs.read(this, sizeof(*this));
+    m_debugMonitorSize = SBig(m_debugMonitorSize);
+    m_simMemSize = SBig(m_simMemSize);
+    m_argOffset = SBig(m_argOffset);
+    m_debugFlag = SBig(m_debugFlag);
+    m_trkAddress = SBig(m_trkAddress);
+    m_trkSz = SBig(m_trkSz);
+    m_countryCode = SBig(m_countryCode);
+    m_unk1 = SBig(m_unk1);
+    m_unk2 = SBig(m_unk2);
+    m_unk3 = SBig(m_unk3);
+    m_dolLimit = SBig(m_dolLimit);
+    m_unk4 = SBig(m_unk4);
+  }
 
-    void write(IWriteStream& ws) const
-    {
-        BI2Header h = *this;
-        h.m_debugMonitorSize = SBig(h.m_debugMonitorSize);
-        h.m_simMemSize = SBig(h.m_simMemSize);
-        h.m_argOffset = SBig(h.m_argOffset);
-        h.m_debugFlag = SBig(h.m_debugFlag);
-        h.m_trkAddress = SBig(h.m_trkAddress);
-        h.m_trkSz = SBig(h.m_trkSz);
-        h.m_countryCode = SBig(h.m_countryCode);
-        h.m_unk1 = SBig(h.m_unk1);
-        h.m_unk2 = SBig(h.m_unk2);
-        h.m_unk3 = SBig(h.m_unk3);
-        h.m_dolLimit = SBig(h.m_dolLimit);
-        h.m_unk4 = SBig(h.m_unk4);
-        ws.write(&h, sizeof(h));
-    }
+  void write(IWriteStream& ws) const {
+    BI2Header h = *this;
+    h.m_debugMonitorSize = SBig(h.m_debugMonitorSize);
+    h.m_simMemSize = SBig(h.m_simMemSize);
+    h.m_argOffset = SBig(h.m_argOffset);
+    h.m_debugFlag = SBig(h.m_debugFlag);
+    h.m_trkAddress = SBig(h.m_trkAddress);
+    h.m_trkSz = SBig(h.m_trkSz);
+    h.m_countryCode = SBig(h.m_countryCode);
+    h.m_unk1 = SBig(h.m_unk1);
+    h.m_unk2 = SBig(h.m_unk2);
+    h.m_unk3 = SBig(h.m_unk3);
+    h.m_dolLimit = SBig(h.m_dolLimit);
+    h.m_unk4 = SBig(h.m_unk4);
+    ws.write(&h, sizeof(h));
+  }
 };
 
 struct ExtractionContext;
-class DiscBase
-{
+class IPartition;
+class DiscBase;
+
+class Node {
 public:
-    virtual ~DiscBase() = default;
+  enum class Kind { File, Directory };
 
-    class IPartition
-    {
-    public:
-        virtual ~IPartition() = default;
-        struct DOLHeader
-        {
-            uint32_t textOff[7];
-            uint32_t dataOff[11];
-            uint32_t textStarts[7];
-            uint32_t dataStarts[11];
-            uint32_t textSizes[7];
-            uint32_t dataSizes[11];
-            uint32_t bssStart;
-            uint32_t bssSize;
-            uint32_t entryPoint;
-        };
+private:
+  friend class IPartition;
+  const IPartition& m_parent;
+  Kind m_kind;
 
-        class Node
-        {
-        public:
-            enum class Kind
-            {
-                File,
-                Directory
-            };
-        private:
-            friend class IPartition;
-            const IPartition& m_parent;
-            Kind m_kind;
+  uint64_t m_discOffset;
+  uint64_t m_discLength;
+  std::string m_name;
 
-            uint64_t m_discOffset;
-            uint64_t m_discLength;
-            std::string m_name;
+  std::vector<Node>::iterator m_childrenBegin;
+  std::vector<Node>::iterator m_childrenEnd;
 
-            std::vector<Node>::iterator m_childrenBegin;
-            std::vector<Node>::iterator m_childrenEnd;
-
-        public:
-            Node(const IPartition& parent, const FSTNode& node, const char* name)
-            : m_parent(parent),
-              m_kind(node.isDir() ? Kind::Directory : Kind::File),
-              m_discOffset(parent.normalizeOffset(node.getOffset())),
-              m_discLength(node.getLength()),
-              m_name(name) {}
-            inline Kind getKind() const {return m_kind;}
-            inline const std::string& getName() const {return m_name;}
-            inline uint64_t size() const {return m_discLength;}
-            std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset=0) const
-            {
-                if (m_kind != Kind::File)
-                {
-                    LogModule.report(logvisor::Error, "unable to stream a non-file %s", m_name.c_str());
-                    return std::unique_ptr<IPartReadStream>();
-                }
-                return m_parent.beginReadStream(m_discOffset + offset);
-            }
-            std::unique_ptr<uint8_t[]> getBuf() const
-            {
-                if (m_kind != Kind::File)
-                {
-                    LogModule.report(logvisor::Error, "unable to buffer a non-file %s", m_name.c_str());
-                    return std::unique_ptr<uint8_t[]>();
-                }
-                uint8_t* buf = new uint8_t[m_discLength];
-                beginReadStream()->read(buf, m_discLength);
-                return std::unique_ptr<uint8_t[]>(buf);
-            }
-            inline std::vector<Node>::iterator rawBegin() const {return m_childrenBegin;}
-            inline std::vector<Node>::iterator rawEnd() const {return m_childrenEnd;}
-
-            class DirectoryIterator : std::iterator<std::forward_iterator_tag, Node>
-            {
-                friend class Node;
-                std::vector<Node>::iterator m_it;
-                DirectoryIterator(const std::vector<Node>::iterator& it)
-                : m_it(it) {}
-            public:
-                inline bool operator!=(const DirectoryIterator& other) {return m_it != other.m_it;}
-                inline bool operator==(const DirectoryIterator& other) {return m_it == other.m_it;}
-                inline DirectoryIterator& operator++()
-                {
-                    if (m_it->m_kind == Kind::Directory)
-                        m_it = m_it->rawEnd();
-                    else
-                        ++m_it;
-                    return *this;
-                }
-                inline Node& operator*() {return *m_it;}
-                inline Node* operator->() {return &*m_it;}
-            };
-            inline DirectoryIterator begin() const {return DirectoryIterator(m_childrenBegin);}
-            inline DirectoryIterator end() const {return DirectoryIterator(m_childrenEnd);}
-            inline DirectoryIterator find(const std::string& name) const
-            {
-                if (m_kind == Kind::Directory)
-                {
-                    DirectoryIterator it=begin();
-                    for (; it != end() ; ++it)
-                    {
-                        if (!it->getName().compare(name))
-                            return it;
-                    }
-                    return it;
-                }
-                return end();
-            }
-
-            bool extractToDirectory(const SystemString& basePath, const ExtractionContext& ctx) const;
-        };
-    protected:
-        Header m_header;
-        BI2Header m_bi2Header;
-        uint64_t m_dolOff;
-        uint64_t m_fstOff;
-        uint64_t m_fstSz;
-        uint64_t m_apploaderSz;
-        std::vector<Node> m_nodes;
-        void parseFST(IPartReadStream& s);
-
-        std::vector<FSTNode> m_buildNodes;
-        std::vector<std::string> m_buildNames;
-        size_t m_buildNameOff = 0;
-        void recursiveBuildNodes(const SystemChar* dirIn, std::function<void(void)> incParents);
-
-        uint64_t m_dolSz;
-        void parseDOL(IPartReadStream& s);
-
-        const DiscBase& m_parent;
-        PartitionKind m_kind;
-        uint64_t m_offset;
-        bool m_isWii;
-    public:
-        mutable size_t m_curNodeIdx = 0;
-        float getProgressFactor() const { return getNodeCount() ? m_curNodeIdx / float(getNodeCount()) : 0.f; }
-        float getProgressFactorMidFile(size_t curByte, size_t totalBytes) const
-        {
-            if (!getNodeCount())
-                return 0.f;
-
-            if (totalBytes)
-                return (m_curNodeIdx + (curByte / float(totalBytes))) / float(getNodeCount());
-            else
-                return m_curNodeIdx / float(getNodeCount());
-        }
-
-        IPartition(const DiscBase& parent, PartitionKind kind, bool isWii, uint64_t offset)
-        : m_parent(parent), m_kind(kind), m_offset(offset), m_isWii(isWii) {}
-        virtual uint64_t normalizeOffset(uint64_t anOffset) const {return anOffset;}
-        inline PartitionKind getKind() const {return m_kind;}
-        inline bool isWii() const {return m_isWii;}
-        inline uint64_t getDiscOffset() const {return m_offset;}
-        virtual std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset=0) const=0;
-        inline std::unique_ptr<IPartReadStream> beginDOLReadStream(uint64_t offset=0) const
-        {return beginReadStream(m_dolOff + offset);}
-        inline std::unique_ptr<IPartReadStream> beginFSTReadStream(uint64_t offset=0) const
-        {return beginReadStream(m_fstOff + offset);}
-        inline std::unique_ptr<IPartReadStream> beginApploaderReadStream(uint64_t offset=0) const
-        {return beginReadStream(0x2440 + offset);}
-        inline const Node& getFSTRoot() const {return m_nodes[0];}
-        inline Node& getFSTRoot() {return m_nodes[0];}
-        bool extractToDirectory(const SystemString& path, const ExtractionContext& ctx);
-
-        inline uint64_t getDOLSize() const {return m_dolSz;}
-        inline std::unique_ptr<uint8_t[]> getDOLBuf() const
-        {
-            std::unique_ptr<uint8_t[]> buf(new uint8_t[m_dolSz]);
-            beginDOLReadStream()->read(buf.get(), m_dolSz);
-            return buf;
-        }
-
-        inline uint64_t getFSTSize() const {return m_fstSz;}
-        inline std::unique_ptr<uint8_t[]> getFSTBuf() const
-        {
-            std::unique_ptr<uint8_t[]> buf(new uint8_t[m_fstSz]);
-            beginFSTReadStream()->read(buf.get(), m_fstSz);
-            return buf;
-        }
-
-        inline uint64_t getApploaderSize() const {return m_apploaderSz;}
-        inline std::unique_ptr<uint8_t[]> getApploaderBuf() const
-        {
-            std::unique_ptr<uint8_t[]> buf(new uint8_t[m_apploaderSz]);
-            beginApploaderReadStream()->read(buf.get(), m_apploaderSz);
-            return buf;
-        }
-
-        inline size_t getNodeCount() const { return m_nodes.size(); }
-        inline const Header& getHeader() const { return m_header; }
-        inline const BI2Header& getBI2() const { return m_bi2Header; }
-        virtual bool extractCryptoFiles(const SystemString& path, const ExtractionContext& ctx) const { return true; }
-    };
-
-protected:
-    std::unique_ptr<IDiscIO> m_discIO;
-    Header m_header;
-    std::vector<std::unique_ptr<IPartition>> m_partitions;
 public:
-    DiscBase(std::unique_ptr<IDiscIO>&& dio, bool& err)
-    : m_discIO(std::move(dio)), m_header(*m_discIO, err) {}
+  Node(const IPartition& parent, const FSTNode& node, std::string_view name);
+  Kind getKind() const { return m_kind; }
+  std::string_view getName() const { return m_name; }
+  uint64_t size() const { return m_discLength; }
+  std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset = 0) const;
+  std::unique_ptr<uint8_t[]> getBuf() const;
+  std::vector<Node>::iterator rawBegin() const { return m_childrenBegin; }
+  std::vector<Node>::iterator rawEnd() const { return m_childrenEnd; }
 
-    inline const Header& getHeader() const {return m_header;}
-    inline const IDiscIO& getDiscIO() const {return *m_discIO;}
-    inline size_t getPartitonNodeCount(size_t partition = 0) const
-    {
-        if (partition > m_partitions.size())
-            return -1;
-        return m_partitions[partition]->getNodeCount();
+  class DirectoryIterator {
+    friend class Node;
+    std::vector<Node>::iterator m_it;
+    DirectoryIterator(const std::vector<Node>::iterator& it) : m_it(it) {}
+
+  public:
+    using iterator_category = std::forward_iterator_tag;
+    using value_type = Node;
+    using difference_type = std::ptrdiff_t;
+    using pointer = Node*;
+    using reference = Node&;
+
+    bool operator==(const DirectoryIterator& other) const { return m_it == other.m_it; }
+    bool operator!=(const DirectoryIterator& other) const { return !operator==(other); }
+    DirectoryIterator& operator++() {
+      if (m_it->m_kind == Kind::Directory)
+        m_it = m_it->rawEnd();
+      else
+        ++m_it;
+      return *this;
     }
-
-    inline IPartition* getDataPartition()
-    {
-        for (const std::unique_ptr<IPartition>& part : m_partitions)
-            if (part->getKind() == PartitionKind::Data)
-                return part.get();
-        return nullptr;
+    Node& operator*() { return *m_it; }
+    const Node& operator*() const { return *m_it; }
+    Node* operator->() { return &*m_it; }
+    const Node* operator->() const { return &*m_it; }
+  };
+  DirectoryIterator begin() const { return DirectoryIterator(m_childrenBegin); }
+  DirectoryIterator end() const { return DirectoryIterator(m_childrenEnd); }
+  DirectoryIterator find(std::string_view name) const {
+    if (m_kind == Kind::Directory) {
+      DirectoryIterator it = begin();
+      for (; it != end(); ++it) {
+        if (it->getName() == name)
+          return it;
+      }
+      return it;
     }
+    return end();
+  }
 
-    inline IPartition* getUpdatePartition()
-    {
-        for (const std::unique_ptr<IPartition>& part : m_partitions)
-            if (part->getKind() == PartitionKind::Update)
-                return part.get();
-        return nullptr;
-    }
-
-    inline void extractToDirectory(const SystemString& path, const ExtractionContext& ctx)
-    {
-        for (std::unique_ptr<IPartition>& part : m_partitions)
-            part->extractToDirectory(path, ctx);
-    }
-
-    virtual bool extractDiscHeaderFiles(const SystemString& path, const ExtractionContext& ctx) const=0;
+  bool extractToDirectory(std::string_view basePath, const ExtractionContext& ctx) const;
 };
 
-class DiscBuilderBase
-{
-    friend class DiscMergerWii;
+class IPartition {
 public:
-    class PartitionBuilderBase
-    {
-    public:
-        virtual ~PartitionBuilderBase() = default;
-    protected:
-        std::unordered_map<SystemString, std::pair<uint64_t,uint64_t>> m_fileOffsetsSizes;
-        std::vector<FSTNode> m_buildNodes;
-        std::vector<std::string> m_buildNames;
-        size_t m_buildNameOff = 0;
-        virtual uint64_t userAllocate(uint64_t reqSz, IPartWriteStream& ws)=0;
-        virtual uint32_t packOffset(uint64_t offset) const=0;
+  virtual ~IPartition() = default;
+  struct DOLHeader {
+    uint32_t textOff[7];
+    uint32_t dataOff[11];
+    uint32_t textStarts[7];
+    uint32_t dataStarts[11];
+    uint32_t textSizes[7];
+    uint32_t dataSizes[11];
+    uint32_t bssStart;
+    uint32_t bssSize;
+    uint32_t entryPoint;
+  };
 
-        void recursiveBuildNodesPre(const SystemChar* dirIn);
-        bool recursiveBuildNodes(IPartWriteStream& ws, bool system, const SystemChar* dirIn);
-
-        bool recursiveBuildFST(const SystemChar* dirIn,
-                               std::function<void(void)> incParents);
-
-        void recursiveMergeNodesPre(const DiscBase::IPartition::Node* nodeIn, const SystemChar* dirIn);
-        bool recursiveMergeNodes(IPartWriteStream& ws, bool system,
-                                 const DiscBase::IPartition::Node* nodeIn, const SystemChar* dirIn,
-                                 const SystemString& keyPath);
-        bool recursiveMergeFST(const DiscBase::IPartition::Node* nodeIn,
-                               const SystemChar* dirIn, std::function<void(void)> incParents,
-                               const SystemString& keyPath);
-
-        static bool RecursiveCalculateTotalSize(uint64_t& totalSz,
-                                                const DiscBase::IPartition::Node* nodeIn,
-                                                const SystemChar* dirIn);
-
-        void addBuildName(const SystemString& str)
-        {
-            SystemUTF8View utf8View(str);
-            m_buildNames.push_back(utf8View.utf8_str());
-            m_buildNameOff += str.size() + 1;
-        }
-
-        DiscBuilderBase& m_parent;
-        PartitionKind m_kind;
-        uint64_t m_dolOffset = 0;
-        uint64_t m_dolSize = 0;
-        bool m_isWii;
-    public:
-        PartitionBuilderBase(DiscBuilderBase& parent, PartitionKind kind, bool isWii)
-        : m_parent(parent), m_kind(kind), m_isWii(isWii)
-        {}
-        virtual std::unique_ptr<IPartWriteStream> beginWriteStream(uint64_t offset)=0;
-        bool buildFromDirectory(IPartWriteStream& ws,
-                                const SystemChar* dirIn);
-        static uint64_t CalculateTotalSizeBuild(const SystemChar* dirIn,
-                                                PartitionKind kind, bool isWii);
-        bool mergeFromDirectory(IPartWriteStream& ws,
-                                const DiscBase::IPartition* partIn,
-                                const SystemChar* dirIn);
-        static uint64_t CalculateTotalSizeMerge(const DiscBase::IPartition* partIn,
-                                                const SystemChar* dirIn);
-    };
 protected:
-    SystemString m_outPath;
-    std::unique_ptr<IFileIO> m_fileIO;
-    std::vector<std::unique_ptr<PartitionBuilderBase>> m_partitions;
-    int64_t m_discCapacity;
+  Header m_header;
+  BI2Header m_bi2Header;
+  uint64_t m_dolOff;
+  uint64_t m_fstOff;
+  uint64_t m_fstSz;
+  uint64_t m_apploaderSz;
+  std::vector<Node> m_nodes;
+  void parseFST(IPartReadStream& s);
+
+  std::vector<FSTNode> m_buildNodes;
+  std::vector<std::string> m_buildNames;
+  size_t m_buildNameOff = 0;
+
+  uint64_t m_dolSz;
+  void parseDOL(IPartReadStream& s);
+
+  const DiscBase& m_parent;
+  PartitionKind m_kind;
+  uint64_t m_offset;
+  bool m_isWii;
+
 public:
-    FProgress m_progressCB;
-    size_t m_progressIdx = 0;
-    size_t m_progressTotal = 0;
-    float getProgressFactor() const
-    {
-        return m_progressTotal ? std::min(1.f, m_progressIdx / float(m_progressTotal)) : 0.f;
-    }
-    float getProgressFactorMidFile(size_t curByte, size_t totalBytes) const
-    {
-        if (!m_progressTotal)
-            return 0.f;
+  mutable size_t m_curNodeIdx = 0;
+  float getProgressFactor() const { return getNodeCount() ? m_curNodeIdx / float(getNodeCount()) : 0.f; }
+  float getProgressFactorMidFile(size_t curByte, size_t totalBytes) const {
+    if (!getNodeCount())
+      return 0.f;
 
-        if (totalBytes)
-            return (m_progressIdx + (curByte / float(totalBytes))) / float(m_progressTotal);
-        else
-            return m_progressIdx / float(m_progressTotal);
-    }
+    if (totalBytes)
+      return (m_curNodeIdx + (curByte / float(totalBytes))) / float(getNodeCount());
+    else
+      return m_curNodeIdx / float(getNodeCount());
+  }
 
-    virtual ~DiscBuilderBase() = default;
-    DiscBuilderBase(const SystemChar* outPath,
-                    int64_t discCapacity, FProgress progressCB)
-    : m_outPath(outPath), m_fileIO(NewFileIO(outPath, discCapacity)),
-      m_discCapacity(discCapacity), m_progressCB(progressCB) {}
-    DiscBuilderBase(DiscBuilderBase&&) = default;
-    DiscBuilderBase& operator=(DiscBuilderBase&&) = default;
+  IPartition(const DiscBase& parent, PartitionKind kind, bool isWii, uint64_t offset)
+  : m_parent(parent), m_kind(kind), m_offset(offset), m_isWii(isWii) {}
+  virtual uint64_t normalizeOffset(uint64_t anOffset) const { return anOffset; }
+  PartitionKind getKind() const { return m_kind; }
+  bool isWii() const { return m_isWii; }
+  uint64_t getDiscOffset() const { return m_offset; }
+  virtual std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset = 0) const = 0;
+  std::unique_ptr<IPartReadStream> beginDOLReadStream(uint64_t offset = 0) const {
+    return beginReadStream(m_dolOff + offset);
+  }
+  std::unique_ptr<IPartReadStream> beginFSTReadStream(uint64_t offset = 0) const {
+    return beginReadStream(m_fstOff + offset);
+  }
+  std::unique_ptr<IPartReadStream> beginApploaderReadStream(uint64_t offset = 0) const {
+    return beginReadStream(0x2440 + offset);
+  }
+  const Node& getFSTRoot() const { return m_nodes[0]; }
+  Node& getFSTRoot() { return m_nodes[0]; }
+  bool extractToDirectory(std::string_view path, const ExtractionContext& ctx);
 
-    IFileIO& getFileIO() { return *m_fileIO; }
+  uint64_t getDOLSize() const { return m_dolSz; }
+  std::unique_ptr<uint8_t[]> getDOLBuf() const {
+    std::unique_ptr<uint8_t[]> buf(new uint8_t[m_dolSz]);
+    beginDOLReadStream()->read(buf.get(), m_dolSz);
+    return buf;
+  }
+
+  uint64_t getFSTSize() const { return m_fstSz; }
+  std::unique_ptr<uint8_t[]> getFSTBuf() const {
+    std::unique_ptr<uint8_t[]> buf(new uint8_t[m_fstSz]);
+    beginFSTReadStream()->read(buf.get(), m_fstSz);
+    return buf;
+  }
+
+  uint64_t getApploaderSize() const { return m_apploaderSz; }
+  std::unique_ptr<uint8_t[]> getApploaderBuf() const {
+    std::unique_ptr<uint8_t[]> buf(new uint8_t[m_apploaderSz]);
+    beginApploaderReadStream()->read(buf.get(), m_apploaderSz);
+    return buf;
+  }
+
+  size_t getNodeCount() const { return m_nodes.size(); }
+  const Header& getHeader() const { return m_header; }
+  const BI2Header& getBI2() const { return m_bi2Header; }
+  virtual bool extractCryptoFiles(std::string_view path, const ExtractionContext& ctx) const { return true; }
+  bool extractSysFiles(std::string_view path, const ExtractionContext& ctx) const;
 };
 
-using Partition = DiscBase::IPartition;
-using Node = Partition::Node;
+class DiscBase {
+public:
+  virtual ~DiscBase() = default;
 
-}
+protected:
+  std::unique_ptr<IDiscIO> m_discIO;
+  Header m_header;
+  std::vector<std::unique_ptr<IPartition>> m_partitions;
 
-#endif // __NOD_DISC_BASE__
+public:
+  DiscBase(std::unique_ptr<IDiscIO>&& dio, bool& err) : m_discIO(std::move(dio)), m_header(*m_discIO, err) {}
+
+  const Header& getHeader() const { return m_header; }
+  const IDiscIO& getDiscIO() const { return *m_discIO; }
+  size_t getPartitionNodeCount(size_t partition = 0) const {
+    if (partition >= m_partitions.size()) {
+      return -1;
+    }
+    return m_partitions[partition]->getNodeCount();
+  }
+
+  IPartition* getDataPartition() {
+    for (const std::unique_ptr<IPartition>& part : m_partitions)
+      if (part->getKind() == PartitionKind::Data)
+        return part.get();
+    return nullptr;
+  }
+
+  IPartition* getUpdatePartition() {
+    for (const std::unique_ptr<IPartition>& part : m_partitions)
+      if (part->getKind() == PartitionKind::Update)
+        return part.get();
+    return nullptr;
+  }
+
+  void extractToDirectory(std::string_view path, const ExtractionContext& ctx) {
+    for (std::unique_ptr<IPartition>& part : m_partitions)
+      part->extractToDirectory(path, ctx);
+  }
+
+  virtual bool extractDiscHeaderFiles(std::string_view path, const ExtractionContext& ctx) const = 0;
+};
+
+class DiscBuilderBase {
+  friend class DiscMergerWii;
+
+public:
+  class PartitionBuilderBase {
+  public:
+    virtual ~PartitionBuilderBase() = default;
+
+  protected:
+    std::unordered_map<std::string, std::pair<uint64_t, uint64_t>> m_fileOffsetsSizes;
+    std::vector<FSTNode> m_buildNodes;
+    std::vector<std::string> m_buildNames;
+    size_t m_buildNameOff = 0;
+    virtual uint64_t userAllocate(uint64_t reqSz, IPartWriteStream& ws) = 0;
+    virtual uint32_t packOffset(uint64_t offset) const = 0;
+
+    void recursiveBuildNodesPre(std::string_view dirIn);
+    bool recursiveBuildNodes(IPartWriteStream& ws, bool system, std::string_view dirIn);
+
+    bool recursiveBuildFST(std::string_view dirIn, std::function<void(void)> incParents, size_t parentDirIdx);
+
+    void recursiveMergeNodesPre(const Node* nodeIn, std::string_view dirIn);
+    bool recursiveMergeNodes(IPartWriteStream& ws, bool system, const Node* nodeIn, std::string_view dirIn,
+                             std::string_view keyPath);
+    bool recursiveMergeFST(const Node* nodeIn, std::string_view dirIn, std::function<void(void)> incParents,
+                           size_t parentDirIdx, std::string_view keyPath);
+
+    static bool RecursiveCalculateTotalSize(uint64_t& totalSz, const Node* nodeIn, std::string_view dirIn);
+
+    void addBuildName(std::string_view str) {
+      UTF8ToSJIS nameView(str);
+      m_buildNames.emplace_back(nameView.str());
+      m_buildNameOff += nameView.str().size() + 1;
+    }
+
+    DiscBuilderBase& m_parent;
+    PartitionKind m_kind;
+    uint64_t m_dolOffset = 0;
+    uint64_t m_dolSize = 0;
+    bool m_isWii;
+
+  public:
+    PartitionBuilderBase(DiscBuilderBase& parent, PartitionKind kind, bool isWii)
+    : m_parent(parent), m_kind(kind), m_isWii(isWii) {}
+    virtual std::unique_ptr<IPartWriteStream> beginWriteStream(uint64_t offset) = 0;
+    bool buildFromDirectory(IPartWriteStream& ws, std::string_view dirIn);
+    static std::optional<uint64_t> CalculateTotalSizeBuild(std::string_view dirIn, PartitionKind kind, bool isWii);
+    bool mergeFromDirectory(IPartWriteStream& ws, const IPartition* partIn, std::string_view dirIn);
+    static std::optional<uint64_t> CalculateTotalSizeMerge(const IPartition* partIn, std::string_view dirIn);
+  };
+
+protected:
+  std::string m_outPath;
+  std::unique_ptr<IFileIO> m_fileIO;
+  std::vector<std::unique_ptr<PartitionBuilderBase>> m_partitions;
+  int64_t m_discCapacity;
+
+public:
+  FProgress m_progressCB;
+  size_t m_progressIdx = 0;
+  size_t m_progressTotal = 0;
+  float getProgressFactor() const {
+    return m_progressTotal ? std::min(1.f, m_progressIdx / float(m_progressTotal)) : 0.f;
+  }
+  float getProgressFactorMidFile(size_t curByte, size_t totalBytes) const {
+    if (!m_progressTotal)
+      return 0.f;
+
+    if (totalBytes)
+      return (m_progressIdx + (curByte / float(totalBytes))) / float(m_progressTotal);
+    else
+      return m_progressIdx / float(m_progressTotal);
+  }
+
+  virtual ~DiscBuilderBase() = default;
+  DiscBuilderBase(std::string_view outPath, int64_t discCapacity, FProgress progressCB)
+  : m_outPath(outPath)
+  , m_fileIO(NewFileIO(outPath, discCapacity))
+  , m_discCapacity(discCapacity)
+  , m_progressCB(std::move(progressCB)) {}
+  DiscBuilderBase(DiscBuilderBase&&) = default;
+  DiscBuilderBase& operator=(DiscBuilderBase&&) = default;
+
+  IFileIO& getFileIO() { return *m_fileIO; }
+};
+
+} // namespace nod

include/nod/DiscGCN.hpp

@@ -1,41 +1,36 @@
-#ifndef __NOD_DISC_GCN__
-#define __NOD_DISC_GCN__
+#pragma once
 
-#include "DiscBase.hpp"
+#include "nod/DiscBase.hpp"
 
-namespace nod
-{
+namespace nod {
 class DiscBuilderGCN;
 
-class DiscGCN : public DiscBase
-{
-    friend class DiscMergerGCN;
-    DiscBuilderGCN makeMergeBuilder(const SystemChar* outPath, FProgress progressCB);
+class DiscGCN : public DiscBase {
+  friend class DiscMergerGCN;
+  DiscBuilderGCN makeMergeBuilder(std::string_view outPath, FProgress progressCB);
+
 public:
-    DiscGCN(std::unique_ptr<IDiscIO>&& dio, bool& err);
-    bool extractDiscHeaderFiles(const SystemString& path, const ExtractionContext& ctx) const;
+  DiscGCN(std::unique_ptr<IDiscIO>&& dio, bool& err);
+  bool extractDiscHeaderFiles(std::string_view path, const ExtractionContext& ctx) const override;
 };
 
-class DiscBuilderGCN : public DiscBuilderBase
-{
-    friend class DiscMergerGCN;
+class DiscBuilderGCN : public DiscBuilderBase {
+  friend class DiscMergerGCN;
+
 public:
-    DiscBuilderGCN(const SystemChar* outPath, FProgress progressCB);
-    EBuildResult buildFromDirectory(const SystemChar* dirIn);
-    static uint64_t CalculateTotalSizeRequired(const SystemChar* dirIn);
+  DiscBuilderGCN(std::string_view outPath, FProgress progressCB);
+  EBuildResult buildFromDirectory(std::string_view dirIn);
+  static std::optional<uint64_t> CalculateTotalSizeRequired(std::string_view dirIn);
 };
 
-class DiscMergerGCN
-{
-    DiscGCN& m_sourceDisc;
-    DiscBuilderGCN m_builder;
+class DiscMergerGCN {
+  DiscGCN& m_sourceDisc;
+  DiscBuilderGCN m_builder;
+
 public:
-    DiscMergerGCN(const SystemChar* outPath, DiscGCN& sourceDisc, FProgress progressCB);
-    EBuildResult mergeFromDirectory(const SystemChar* dirIn);
-    static uint64_t CalculateTotalSizeRequired(DiscGCN& sourceDisc, const SystemChar* dirIn);
+  DiscMergerGCN(std::string_view outPath, DiscGCN& sourceDisc, FProgress progressCB);
+  EBuildResult mergeFromDirectory(std::string_view dirIn);
+  static std::optional<uint64_t> CalculateTotalSizeRequired(DiscGCN& sourceDisc, std::string_view dirIn);
 };
 
-}
-
-
-#endif // __NOD_DISC_GCN__
+} // namespace nod

include/nod/DiscWii.hpp

@@ -1,41 +1,32 @@
-#ifndef __NOD_DISC_WII__
-#define __NOD_DISC_WII__
+#pragma once
 
-#include "DiscBase.hpp"
+#include "nod/DiscBase.hpp"
 
-namespace nod
-{
+namespace nod {
 class DiscBuilderWii;
 
-class DiscWii : public DiscBase
-{
+class DiscWii : public DiscBase {
 public:
-    DiscWii(std::unique_ptr<IDiscIO>&& dio, bool& err);
-    DiscBuilderWii makeMergeBuilder(const SystemChar* outPath, bool dualLayer, FProgress progressCB);
-    bool extractDiscHeaderFiles(const SystemString& path, const ExtractionContext& ctx) const;
+  DiscWii(std::unique_ptr<IDiscIO>&& dio, bool& err);
+  DiscBuilderWii makeMergeBuilder(std::string_view outPath, bool dualLayer, FProgress progressCB);
+  bool extractDiscHeaderFiles(std::string_view path, const ExtractionContext& ctx) const override;
 };
 
-class DiscBuilderWii : public DiscBuilderBase
-{
-    bool m_dualLayer;
+class DiscBuilderWii : public DiscBuilderBase {
 public:
-    DiscBuilderWii(const SystemChar* outPath, bool dualLayer, FProgress progressCB);
-    EBuildResult buildFromDirectory(const SystemChar* dirIn);
-    static uint64_t CalculateTotalSizeRequired(const SystemChar* dirIn, bool& dualLayer);
+  DiscBuilderWii(std::string_view outPath, bool dualLayer, FProgress progressCB);
+  EBuildResult buildFromDirectory(std::string_view dirIn);
+  static std::optional<uint64_t> CalculateTotalSizeRequired(std::string_view dirIn, bool& dualLayer);
 };
 
-class DiscMergerWii
-{
-    DiscWii& m_sourceDisc;
-    DiscBuilderWii m_builder;
+class DiscMergerWii {
+  DiscWii& m_sourceDisc;
+  DiscBuilderWii m_builder;
+
 public:
-    DiscMergerWii(const SystemChar* outPath, DiscWii& sourceDisc,
-                  bool dualLayer, FProgress progressCB);
-    EBuildResult mergeFromDirectory(const SystemChar* dirIn);
-    static uint64_t CalculateTotalSizeRequired(DiscWii& sourceDisc, const SystemChar* dirIn,
-                                               bool& dualLayer);
+  DiscMergerWii(std::string_view outPath, DiscWii& sourceDisc, bool dualLayer, FProgress progressCB);
+  EBuildResult mergeFromDirectory(std::string_view dirIn);
+  static std::optional<uint64_t> CalculateTotalSizeRequired(DiscWii& sourceDisc, std::string_view dirIn, bool& dualLayer);
 };
 
-}
-
-#endif // __NOD_DISC_WII__
+} // namespace nod

include/nod/Endian.hpp

@@ -0,0 +1,78 @@
+#pragma once
+
+#include <cstdint>
+
+#undef bswap16
+#undef bswap32
+#undef bswap64
+
+namespace nod {
+/* Type-sensitive byte swappers */
+template <typename T>
+static inline T bswap16(T val) {
+#if __GNUC__
+  return __builtin_bswap16(val);
+#elif _WIN32
+  return _byteswap_ushort(val);
+#else
+  return (val = (val << 8) | ((val >> 8) & 0xFF));
+#endif
+}
+
+template <typename T>
+static inline T bswap32(T val) {
+#if __GNUC__
+  return __builtin_bswap32(val);
+#elif _WIN32
+  return _byteswap_ulong(val);
+#else
+  val = (val & 0x0000FFFF) << 16 | (val & 0xFFFF0000) >> 16;
+  val = (val & 0x00FF00FF) << 8 | (val & 0xFF00FF00) >> 8;
+  return val;
+#endif
+}
+
+template <typename T>
+static inline T bswap64(T val) {
+#if __GNUC__
+  return __builtin_bswap64(val);
+#elif _WIN32
+  return _byteswap_uint64(val);
+#else
+  return ((val & 0xFF00000000000000ULL) >> 56) | ((val & 0x00FF000000000000ULL) >> 40) |
+         ((val & 0x0000FF0000000000ULL) >> 24) | ((val & 0x000000FF00000000ULL) >> 8) |
+         ((val & 0x00000000FF000000ULL) << 8) | ((val & 0x0000000000FF0000ULL) << 24) |
+         ((val & 0x000000000000FF00ULL) << 40) | ((val & 0x00000000000000FFULL) << 56);
+#endif
+}
+
+#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+static inline int16_t SBig(int16_t val) { return bswap16(val); }
+static inline uint16_t SBig(uint16_t val) { return bswap16(val); }
+static inline int32_t SBig(int32_t val) { return bswap32(val); }
+static inline uint32_t SBig(uint32_t val) { return bswap32(val); }
+static inline int64_t SBig(int64_t val) { return bswap64(val); }
+static inline uint64_t SBig(uint64_t val) { return bswap64(val); }
+
+static inline int16_t SLittle(int16_t val) { return val; }
+static inline uint16_t SLittle(uint16_t val) { return val; }
+static inline int32_t SLittle(int32_t val) { return val; }
+static inline uint32_t SLittle(uint32_t val) { return val; }
+static inline int64_t SLittle(int64_t val) { return val; }
+static inline uint64_t SLittle(uint64_t val) { return val; }
+#else
+static inline int16_t SLittle(int16_t val) { return bswap16(val); }
+static inline uint16_t SLittle(uint16_t val) { return bswap16(val); }
+static inline int32_t SLittle(int32_t val) { return bswap32(val); }
+static inline uint32_t SLittle(uint32_t val) { return bswap32(val); }
+static inline int64_t SLittle(int64_t val) { return bswap64(val); }
+static inline uint64_t SLittle(uint64_t val) { return bswap64(val); }
+
+static inline int16_t SBig(int16_t val) { return val; }
+static inline uint16_t SBig(uint16_t val) { return val; }
+static inline int32_t SBig(int32_t val) { return val; }
+static inline uint32_t SBig(uint32_t val) { return val; }
+static inline int64_t SBig(int64_t val) { return val; }
+static inline uint64_t SBig(uint64_t val) { return val; }
+#endif
+} // namespace nod

include/nod/IDiscIO.hpp

@@ -1,75 +1,69 @@
-#ifndef __NOD_IDISC_IO__
-#define __NOD_IDISC_IO__
+#pragma once
 
+#include <cstdint>
+#include <cstdio>
 #include <memory>
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
 
 #if NOD_ATHENA
 #include <athena/IStreamReader.hpp>
 #include <athena/IStreamWriter.hpp>
 #endif
 
-namespace nod
-{
+namespace nod {
 
-struct IReadStream
-{
-    virtual ~IReadStream() = default;
-    virtual uint64_t read(void* buf, uint64_t length)=0;
-    virtual void seek(int64_t offset, int whence=SEEK_SET)=0;
-    virtual uint64_t position() const=0;
+struct IReadStream {
+  virtual ~IReadStream() = default;
+  virtual uint64_t read(void* buf, uint64_t length) = 0;
+  virtual void seek(int64_t offset, int whence = SEEK_SET) = 0;
+  virtual uint64_t position() const = 0;
 };
 
-struct IWriteStream
-{
-    virtual ~IWriteStream() = default;
-    virtual uint64_t write(const void* buf, uint64_t length)=0;
+struct IWriteStream {
+  virtual ~IWriteStream() = default;
+  virtual uint64_t write(const void* buf, uint64_t length) = 0;
 };
 
-class IDiscIO
-{
+class IDiscIO {
 public:
-    virtual ~IDiscIO() = default;
-    virtual std::unique_ptr<IReadStream> beginReadStream(uint64_t offset=0) const=0;
-    virtual std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset=0) const=0;
+  virtual ~IDiscIO() = default;
+  virtual std::unique_ptr<IReadStream> beginReadStream(uint64_t offset = 0) const = 0;
+  virtual std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset = 0) const = 0;
+  virtual bool hasWiiCrypto() const { return true; } /* NFS overrides this to false */
 };
 
-struct IPartReadStream : IReadStream
-{
-    virtual ~IPartReadStream() = default;
+struct IPartReadStream : IReadStream {
+  ~IPartReadStream() override = default;
 };
 
-struct IPartWriteStream : IWriteStream
-{
-    virtual ~IPartWriteStream() = default;
-    virtual void close()=0;
-    virtual uint64_t position() const=0;
+struct IPartWriteStream : IWriteStream {
+  ~IPartWriteStream() override = default;
+  virtual void close() = 0;
+  virtual uint64_t position() const = 0;
 };
 
 #if NOD_ATHENA
 
-class AthenaPartReadStream : public athena::io::IStreamReader
-{
-    std::unique_ptr<IPartReadStream> m_rs;
-public:
-    AthenaPartReadStream(std::unique_ptr<IPartReadStream>&& rs) : m_rs(std::move(rs)) {}
+class AthenaPartReadStream : public athena::io::IStreamReader {
+  std::unique_ptr<IPartReadStream> m_rs;
 
-    inline void seek(atInt64 off, athena::SeekOrigin origin)
-    {
-        if (origin == athena::Begin)
-            m_rs->seek(off, SEEK_SET);
-        else if (origin == athena::Current)
-            m_rs->seek(off, SEEK_CUR);
+public:
+  AthenaPartReadStream(std::unique_ptr<IPartReadStream>&& rs) : m_rs(std::move(rs)) {}
+
+  void seek(atInt64 off, athena::SeekOrigin origin) override {
+    if (origin == athena::SeekOrigin::Begin) {
+      m_rs->seek(off, SEEK_SET);
+    } else if (origin == athena::SeekOrigin::Current) {
+      m_rs->seek(off, SEEK_CUR);
     }
-    inline atUint64 position()    const {return m_rs->position();}
-    inline atUint64 length()      const {return 0;}
-    inline atUint64 readUBytesToBuf(void* buf, atUint64 sz) {m_rs->read(buf, sz); return sz;}
+  }
+  atUint64 position() const override { return m_rs->position(); }
+  atUint64 length() const override { return 0; }
+  atUint64 readUBytesToBuf(void* buf, atUint64 sz) override {
+    m_rs->read(buf, sz);
+    return sz;
+  }
 };
 
 #endif
 
-}
-
-#endif // __NOD_IDISC_IO__
+} // namespace nod

include/nod/IFileIO.hpp

@@ -1,87 +1,34 @@
-#ifndef __NOD_IFILE_IO__
-#define __NOD_IFILE_IO__
+#pragma once
 
-#include <memory>
+#include <cstdint>
 #include <functional>
-#include <stdlib.h>
-#include "IDiscIO.hpp"
-#include "Util.hpp"
+#include <memory>
+#include <string_view>
 
-namespace nod
-{
+#include "nod/IDiscIO.hpp"
 
-class IFileIO
-{
+namespace nod {
+
+class IFileIO {
 public:
-    virtual ~IFileIO() = default;
-    virtual bool exists()=0;
-    virtual uint64_t size()=0;
+  virtual ~IFileIO() = default;
+  virtual bool exists() = 0;
+  virtual uint64_t size() = 0;
 
-    struct IWriteStream : nod::IWriteStream
-    {
-        uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length)
-        {
-            uint64_t read = 0;
-            uint8_t buf[0x7c00];
-            while (length)
-            {
-                uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
-                uint64_t readSz = discio.read(buf, thisSz);
-                if (thisSz != readSz)
-                {
-                    LogModule.report(logvisor::Error, "unable to read enough from disc");
-                    return read;
-                }
-                if (write(buf, readSz) != readSz)
-                {
-                    LogModule.report(logvisor::Error, "unable to write in file");
-                    return read;
-                }
-                length -= thisSz;
-                read += thisSz;
-            }
-            return read;
-        }
-        uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length, const std::function<void(float)>& prog)
-        {
-            uint64_t read = 0;
-            uint8_t buf[0x7c00];
-            uint64_t total = length;
-            while (length)
-            {
-                uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
-                uint64_t readSz = discio.read(buf, thisSz);
-                if (thisSz != readSz)
-                {
-                    LogModule.report(logvisor::Error, "unable to read enough from disc");
-                    return read;
-                }
-                if (write(buf, readSz) != readSz)
-                {
-                    LogModule.report(logvisor::Error, "unable to write in file");
-                    return read;
-                }
-                length -= thisSz;
-                read += thisSz;
-                prog(read / float(total));
-            }
-            return read;
-        }
-    };
-    virtual std::unique_ptr<IWriteStream> beginWriteStream() const=0;
-    virtual std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const=0;
+  struct IWriteStream : nod::IWriteStream {
+    uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length);
+    uint64_t copyFromDisc(IPartReadStream& discio, uint64_t length, const std::function<void(float)>& prog);
+  };
+  virtual std::unique_ptr<IWriteStream> beginWriteStream() const = 0;
+  virtual std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const = 0;
 
-    struct IReadStream : nod::IReadStream
-    {
-        virtual uint64_t copyToDisc(struct IPartWriteStream& discio, uint64_t length)=0;
-    };
-    virtual std::unique_ptr<IReadStream> beginReadStream() const=0;
-    virtual std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const=0;
+  struct IReadStream : nod::IReadStream {
+    virtual uint64_t copyToDisc(struct IPartWriteStream& discio, uint64_t length) = 0;
+  };
+  virtual std::unique_ptr<IReadStream> beginReadStream() const = 0;
+  virtual std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const = 0;
 };
 
-std::unique_ptr<IFileIO> NewFileIO(const SystemString& path, int64_t maxWriteSize=-1);
-std::unique_ptr<IFileIO> NewFileIO(const SystemChar* path, int64_t maxWriteSize=-1);
+std::unique_ptr<IFileIO> NewFileIO(std::string_view path, int64_t maxWriteSize = -1);
 
-}
-
-#endif // __NOD_IFILE_IO__
+} // namespace nod

include/nod/OSUTF.h

@@ -0,0 +1,113 @@
+#ifdef __cplusplus
+#include <array>
+#include <cstdint>
+
+#if !__cpp_char8_t
+using char8_t = uint8_t;
+#endif
+
+#define OS_CONSTEXPR constexpr
+
+extern "C" {
+#else
+#include <stdint.h>
+#include <stdbool.h>
+
+#define OS_CONSTEXPR
+
+typedef uint8_t char8_t;
+typedef uint16_t char16_t;
+typedef uint32_t char32_t;
+#endif
+
+OS_CONSTEXPR inline bool IsSjisLeadByte(char8_t c) { return (c > 0x80 && c < 0xa0) || (c > 0xdf && c < 0xfd); }
+
+OS_CONSTEXPR inline bool IsSjisTrailByte(char8_t c) { return c > 0x3f && c < 0xfd && c != 0x7f; }
+
+char32_t OSSJISToUTF32(char16_t sjis);
+
+char16_t OSUTF32ToSJIS(char32_t utf32);
+
+char8_t OSUTF32ToAnsi(char32_t utf32);
+
+char16_t* OSUTF32To16(char32_t utf32, char16_t* utf16);
+
+char8_t* OSUTF32To8(char32_t utf32, char8_t* utf8);
+
+const char16_t* OSUTF16To32(const char16_t* utf16, char32_t* utf32);
+
+const char8_t* OSUTF8To32(const char8_t* utf8, char32_t* utf32);
+
+#ifdef __cplusplus
+}
+
+class SJISToUTF8 {
+private:
+  std::string out;
+
+public:
+  SJISToUTF8(std::string_view sv) {
+    const auto* in = reinterpret_cast<const char8_t*>(sv.data());
+    const auto* end = in + sv.size();
+    std::array<char8_t, 4> u8arr{};
+    while (in < end) {
+      if (IsSjisLeadByte(*in)) {
+        char16_t sjis = static_cast<char16_t>(*in) << 8 | *(in + 1);
+        in += 2;
+        char32_t utf32 = OSSJISToUTF32(sjis);
+        if (utf32 == 0) {
+          continue;
+        }
+        char8_t* u8out = u8arr.data();
+        char8_t* u8end = OSUTF32To8(utf32, u8out);
+        if (u8end == nullptr) {
+          continue;
+        }
+        auto length = static_cast<size_t>(u8end - u8out);
+        out.append(std::string_view{reinterpret_cast<char*>(u8out), length});
+      } else {
+        out.push_back(static_cast<char>(*in++));
+      }
+    }
+  }
+
+  [[nodiscard]] const std::string& str() const { return out; }
+
+  [[nodiscard]] std::string& str() { return out; }
+
+  [[nodiscard]] const char* c_str() const { return out.c_str(); }
+};
+
+class UTF8ToSJIS {
+private:
+  std::string out;
+
+public:
+  UTF8ToSJIS(std::string_view sv) {
+    const auto* in = reinterpret_cast<const char8_t*>(sv.data());
+    const auto* end = in + sv.size();
+    while (in < end) {
+      char32_t utf32 = 0;
+      const char8_t* next = OSUTF8To32(in, &utf32);
+      if (next == nullptr) {
+        utf32 = *in;
+        in++;
+      } else {
+        in = next;
+      }
+      char16_t sjis = OSUTF32ToSJIS(utf32);
+      char8_t lead = (sjis >> 8) & 0xFF;
+      if (IsSjisLeadByte(lead)) {
+        out.push_back(static_cast<char>(lead));
+      }
+      out.push_back(static_cast<char>(sjis & 0xFF));
+    }
+  }
+
+  [[nodiscard]] const std::string& str() const { return out; }
+
+  [[nodiscard]] std::string& str() { return out; }
+
+  [[nodiscard]] const char* c_str() const { return out.c_str(); }
+};
+#endif

include/nod/Util.hpp

@@ -1,352 +0,0 @@
-#ifndef __NOD_UTIL_HPP__
-#define __NOD_UTIL_HPP__
-
-#if _WIN32 && UNICODE
-#include <wctype.h>
-#include <direct.h>
-#ifndef WIN32_LEAN_AND_MEAN
-#define WIN32_LEAN_AND_MEAN 1
-#endif
-#ifndef NOMINMAX
-#define NOMINMAX
-#endif
-#include <windows.h>
-#else
-#include <ctype.h>
-#include <sys/file.h>
-#include <unistd.h>
-#include <errno.h>
-#include <sys/param.h>
-#include <sys/statvfs.h>
-
-#endif
-#include <sys/stat.h>
-
-#include <string>
-#include <cstring>
-#include <algorithm>
-#include "logvisor/logvisor.hpp"
-#ifdef _MSC_VER
-#pragma warning(disable : 4996)
-
-#include <sys/stat.h>
-
-#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
-#define S_ISREG(m) (((m) & S_IFMT) == S_IFREG)
-#endif
-
-#if !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR)
-#define S_ISDIR(m) (((m) & S_IFMT) == S_IFDIR)
-#endif
-
-#if !defined(S_ISLNK)
-#define S_ISLNK(m) 0
-#endif
-#endif
-
-#undef min
-#undef max
-
-namespace nod
-{
-/* define our own min/max to avoid MSVC BS */
-template<typename T>
-inline T min(T a, T b) { return a < b ? a : b; }
-template<typename T>
-inline T max(T a, T b) { return a > b ? a : b; }
-
-/* Log Module */
-extern logvisor::Module LogModule;
-
-/* filesystem char type */
-#if _WIN32 && UNICODE
-#define NOD_UCS2 1
-typedef struct _stat Sstat;
-static inline int Mkdir(const wchar_t* path, int) {return _wmkdir(path);}
-static inline int Stat(const wchar_t* path, Sstat* statout) {return _wstat(path, statout);}
-#else
-typedef struct stat Sstat;
-static inline int Mkdir(const char* path, mode_t mode) {return mkdir(path, mode);}
-static inline int Stat(const char* path, Sstat* statout) {return stat(path, statout);}
-#endif
-
-/* String-converting views */
-#if NOD_UCS2
-typedef wchar_t SystemChar;
-typedef std::wstring SystemString;
-static inline void ToLower(SystemString& str)
-{std::transform(str.begin(), str.end(), str.begin(), towlower);}
-static inline void ToUpper(SystemString& str)
-{std::transform(str.begin(), str.end(), str.begin(), towupper);}
-static inline size_t StrLen(const SystemChar* str) {return wcslen(str);}
-class SystemUTF8View
-{
-    std::string m_utf8;
-public:
-    explicit SystemUTF8View(const SystemString& str)
-    {
-        int len = WideCharToMultiByte(CP_UTF8, 0, str.c_str(), str.size(), nullptr, 0, nullptr, nullptr);
-        m_utf8.assign(len, '\0');
-        WideCharToMultiByte(CP_UTF8, 0, str.c_str(), str.size(), &m_utf8[0], len, nullptr, nullptr);
-    }
-    inline const std::string& utf8_str() {return m_utf8;}
-};
-class SystemStringView
-{
-    std::wstring m_sys;
-public:
-    explicit SystemStringView(const std::string& str)
-    {
-        int len = MultiByteToWideChar(CP_UTF8, 0, str.c_str(), str.size(), nullptr, 0);
-        m_sys.assign(len, L'\0');
-        MultiByteToWideChar(CP_UTF8, 0, str.c_str(), str.size(), &m_sys[0], len);
-    }
-    inline const std::wstring& sys_str() {return m_sys;}
-};
-#ifndef _S
-#define _S(val) L ## val
-#endif
-#else
-typedef char SystemChar;
-typedef std::string SystemString;
-static inline void ToLower(SystemString& str)
-{std::transform(str.begin(), str.end(), str.begin(), tolower);}
-static inline void ToUpper(SystemString& str)
-{std::transform(str.begin(), str.end(), str.begin(), toupper);}
-static inline size_t StrLen(const SystemChar* str) {return strlen(str);}
-class SystemUTF8View
-{
-    const std::string& m_utf8;
-public:
-    explicit SystemUTF8View(const SystemString& str)
-    : m_utf8(str) {}
-    inline const std::string& utf8_str() {return m_utf8;}
-};
-class SystemStringView
-{
-    const std::string& m_sys;
-public:
-    explicit SystemStringView(const std::string& str)
-    : m_sys(str) {}
-    inline const std::string& sys_str() {return m_sys;}
-};
-#ifndef _S
-#define _S(val) val
-#endif
-#endif
-
-static inline void Unlink(const SystemChar* file)
-{
-#if NOD_UCS2
-    _wunlink(file);
-#else
-    unlink(file);
-#endif
-}
-
-static inline int StrCmp(const SystemChar* str1, const SystemChar* str2)
-{
-#if NOD_UCS2
-    return wcscmp(str1, str2);
-#else
-    return strcmp(str1, str2);
-#endif
-}
-
-static inline int StrCaseCmp(const SystemChar* str1, const SystemChar* str2)
-{
-#if NOD_UCS2
-    return _wcsicmp(str1, str2);
-#else
-    return strcasecmp(str1, str2);
-#endif
-}
-
-#undef bswap16
-#undef bswap32
-#undef bswap64
-/* Type-sensitive byte swappers */
-template <typename T>
-static inline T bswap16(T val)
-{
-#if __GNUC__
-    return __builtin_bswap16(val);
-#elif _WIN32
-    return _byteswap_ushort(val);
-#else
-    return (val = (val << 8) | ((val >> 8) & 0xFF));
-#endif
-}
-
-template <typename T>
-static inline T bswap32(T val)
-{
-#if __GNUC__
-    return __builtin_bswap32(val);
-#elif _WIN32
-    return _byteswap_ulong(val);
-#else
-    val = (val & 0x0000FFFF) << 16 | (val & 0xFFFF0000) >> 16;
-    val = (val & 0x00FF00FF) << 8 | (val & 0xFF00FF00) >> 8;
-    return val;
-#endif
-}
-
-template <typename T>
-static inline T bswap64(T val)
-{
-#if __GNUC__
-    return __builtin_bswap64(val);
-#elif _WIN32
-    return _byteswap_uint64(val);
-#else
-    return ((val & 0xFF00000000000000ULL) >> 56) |
-           ((val & 0x00FF000000000000ULL) >> 40) |
-           ((val & 0x0000FF0000000000ULL) >> 24) |
-           ((val & 0x000000FF00000000ULL) >>  8) |
-           ((val & 0x00000000FF000000ULL) <<  8) |
-           ((val & 0x0000000000FF0000ULL) << 24) |
-           ((val & 0x000000000000FF00ULL) << 40) |
-           ((val & 0x00000000000000FFULL) << 56);
-#endif
-}
-
-
-#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
-static inline int16_t SBig(int16_t val) {return bswap16(val);}
-static inline uint16_t SBig(uint16_t val) {return bswap16(val);}
-static inline int32_t SBig(int32_t val) {return bswap32(val);}
-static inline uint32_t SBig(uint32_t val) {return bswap32(val);}
-static inline int64_t SBig(int64_t val) {return bswap64(val);}
-static inline uint64_t SBig(uint64_t val) {return bswap64(val);}
-
-static inline int16_t SLittle(int16_t val) {return val;}
-static inline uint16_t SLittle(uint16_t val) {return val;}
-static inline int32_t SLittle(int32_t val) {return val;}
-static inline uint32_t SLittle(uint32_t val) {return val;}
-static inline int64_t SLittle(int64_t val) {return val;}
-static inline uint64_t SLittle(uint64_t val) {return val;}
-#else
-static inline int16_t SLittle(int16_t val) {return bswap16(val);}
-static inline uint16_t SLittle(uint16_t val) {return bswap16(val);}
-static inline int32_t SLittle(int32_t val) {return bswap32(val);}
-static inline uint32_t SLittle(uint32_t val) {return bswap32(val);}
-static inline int64_t SLittle(int64_t val) {return bswap64(val);}
-static inline uint64_t SLittle(uint64_t val) {return bswap64(val);}
-
-static inline int16_t SBig(int16_t val) {return val;}
-static inline uint16_t SBig(uint16_t val) {return val;}
-static inline int32_t SBig(int32_t val) {return val;}
-static inline uint32_t SBig(uint32_t val) {return val;}
-static inline int64_t SBig(int64_t val) {return val;}
-static inline uint64_t SBig(uint64_t val) {return val;}
-#endif
-
-#ifndef ROUND_UP_32
-#define ROUND_UP_32(val) (((val) + 31) & ~31)
-#define ROUND_UP_16(val) (((val) + 15) & ~15)
-#endif
-
-enum class FileLockType
-{
-    None = 0,
-    Read,
-    Write
-};
-static inline FILE* Fopen(const SystemChar* path, const SystemChar* mode, FileLockType lock=FileLockType::None)
-{
-#if NOD_UCS2
-    FILE* fp = _wfopen(path, mode);
-    if (!fp)
-        return nullptr;
-#else
-    FILE* fp = fopen(path, mode);
-    if (!fp)
-        return nullptr;
-#endif
-
-    if (lock != FileLockType::None)
-    {
-#if _WIN32
-        OVERLAPPED ov = {};
-        LockFileEx((HANDLE)(uintptr_t)_fileno(fp), (lock == FileLockType::Write) ? LOCKFILE_EXCLUSIVE_LOCK : 0, 0, 0, 1, &ov);
-#else
-        if (flock(fileno(fp), ((lock == FileLockType::Write) ? LOCK_EX : LOCK_SH) | LOCK_NB))
-            LogModule.report(logvisor::Error, "flock %s: %s", path, strerror(errno));
-#endif
-    }
-
-    return fp;
-}
-
-static inline int FSeek(FILE* fp, int64_t offset, int whence)
-{
-#if _WIN32
-    return _fseeki64(fp, offset, whence);
-#elif __APPLE__ || __FreeBSD__
-    return fseeko(fp, offset, whence);
-#else
-    return fseeko64(fp, offset, whence);
-#endif
-}
-
-static inline int64_t FTell(FILE* fp)
-{
-#if _WIN32
-    return _ftelli64(fp);
-#elif __APPLE__ || __FreeBSD__
-    return ftello(fp);
-#else
-    return ftello64(fp);
-#endif
-}
-
-static inline bool CheckFreeSpace(const SystemChar* path, size_t reqSz)
-{
-#if _WIN32
-    ULARGE_INTEGER freeBytes;
-    wchar_t buf[1024];
-    wchar_t* end;
-    DWORD ret = GetFullPathNameW(path, 1024, buf, &end);
-    if (!ret || ret > 1024)
-    {
-        LogModule.report(logvisor::Error, _S("GetFullPathNameW %s"), path);
-        return false;
-    }
-    if (end)
-        end[0] = L'\0';
-    if (!GetDiskFreeSpaceExW(buf, &freeBytes, nullptr, nullptr))
-    {
-        LogModule.report(logvisor::Error, _S("GetDiskFreeSpaceExW %s: %d"), path, GetLastError());
-        return false;
-    }
-    return reqSz < freeBytes.QuadPart;
-#else
-    struct statvfs svfs;
-    if (statvfs(path, &svfs))
-    {
-        LogModule.report(logvisor::Error, "statvfs %s: %s", path, strerror(errno));
-        return false;
-    }
-    return reqSz < svfs.f_frsize * svfs.f_bavail;
-#endif
-}
-
-#if __GNUC__
-__attribute__((__format__ (__printf__, 1, 2)))
-#endif
-static inline void Printf(const SystemChar* fmt, ...)
-{
-    va_list args;
-    va_start(args, fmt);
-#if NOD_UCS2
-    vwprintf(fmt, args);
-#else
-    vprintf(fmt, args);
-#endif
-    va_end(args);
-}
-
-}
-
-#endif // __NOD_UTIL_HPP__

include/nod/aes.hpp

@@ -1,24 +1,19 @@
-#ifndef __AES_HPP__
-#define __AES_HPP__
+#pragma once
 
-#include <stdint.h>
-#include <stdlib.h>
+#include <cstdint>
+#include <cstdlib>
 #include <memory>
 
-namespace nod
-{
+namespace nod {
 
-class IAES
-{
+class IAES {
 public:
-    virtual ~IAES() = default;
-    virtual void encrypt(const uint8_t* iv, const uint8_t* inbuf, uint8_t* outbuf, size_t len)=0;
-    virtual void decrypt(const uint8_t* iv, const uint8_t* inbuf, uint8_t* outbuf, size_t len)=0;
-    virtual void setKey(const uint8_t* key)=0;
+  virtual ~IAES() = default;
+  virtual void encrypt(const uint8_t* iv, const uint8_t* inbuf, uint8_t* outbuf, size_t len) = 0;
+  virtual void decrypt(const uint8_t* iv, const uint8_t* inbuf, uint8_t* outbuf, size_t len) = 0;
+  virtual void setKey(const uint8_t* key) = 0;
 };
 
 std::unique_ptr<IAES> NewAES();
 
-}
-
-#endif //__AES_HPP__
+} // namespace nod

include/nod/nod.hpp

@@ -1,29 +1,19 @@
-#ifndef __NOD_LIB__
-#define __NOD_LIB__
+#pragma once
 
-#include <memory>
 #include <functional>
-#include "logvisor/logvisor.hpp"
-#include "Util.hpp"
+#include <memory>
+#include <string_view>
 
-namespace nod
-{
+namespace nod {
 
 class DiscBase;
 
-struct ExtractionContext final
-{
-    bool force : 1;
-    std::function<void(const std::string&, float)> progressCB;
+struct ExtractionContext final {
+  bool force : 1;
+  std::function<void(std::string_view, float)> progressCB;
 };
 
-std::unique_ptr<DiscBase> OpenDiscFromImage(const SystemChar* path);
-std::unique_ptr<DiscBase> OpenDiscFromImage(const SystemChar* path, bool& isWii);
+std::unique_ptr<DiscBase> OpenDiscFromImage(std::string_view path);
+std::unique_ptr<DiscBase> OpenDiscFromImage(std::string_view path, bool& isWii);
 
-}
-
-#include "DiscGCN.hpp"
-#include "DiscWii.hpp"
-#include "IDiscIO.hpp"
-
-#endif // __NOD_LIB__
+} // namespace nod

lib/CMakeLists.txt

@@ -1,21 +1,57 @@
-if(NOT WIN32)
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-multichar")
-set(PLAT_SRCS FileIOFILE.cpp)
-else()
-set(PLAT_SRCS FileIOWin32.cpp)
-endif()
 add_library(nod
-            aes.cpp
-            sha1.c
-            DiscBase.cpp
-            DiscGCN.cpp
-            DiscIOISO.cpp
-            DiscIOWBFS.cpp
-            DiscWii.cpp
-            DirectoryEnumerator.cpp
-            nod.cpp
-			${PLAT_SRCS}
-            ${NOD_HEADERS})
-if(NOT MSVC)
-set_source_files_properties(aes.cpp PROPERTIES COMPILE_FLAGS -maes)
+  aes.cpp
+  sha1.c
+
+  DirectoryEnumerator.cpp
+  DiscBase.cpp
+  DiscGCN.cpp
+  DiscIOISO.cpp
+  DiscIONFS.cpp
+  DiscIOWBFS.cpp
+  DiscWii.cpp
+  IFileIO.cpp
+  nod.cpp
+  OSUTF.c
+  Util.cpp
+  Util.hpp
+
+  ../include/nod/aes.hpp
+  ../include/nod/DirectoryEnumerator.hpp
+  ../include/nod/DiscBase.hpp
+  ../include/nod/DiscGCN.hpp
+  ../include/nod/DiscWii.hpp
+  ../include/nod/Endian.hpp
+  ../include/nod/IDiscIO.hpp
+  ../include/nod/IFileIO.hpp
+  ../include/nod/nod.hpp
+  ../include/nod/OSUTF.h
+  ../include/nod/sha1.h
+)
+
+target_include_directories(nod PUBLIC
+  $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/../include>
+)
+
+target_link_libraries(nod PUBLIC $<BUILD_INTERFACE:spdlog::spdlog>)
+
+if(WIN32)
+  target_sources(nod PRIVATE FileIOWin32.cpp)
+  target_link_libraries(nod PRIVATE nowide::nowide)
+else()
+  target_compile_options(nod PRIVATE -Wno-multichar)
+  target_sources(nod PRIVATE FileIOFILE.cpp)
 endif()
+
+if(NOT MSVC AND ${CMAKE_SYSTEM_PROCESSOR} STREQUAL x86_64)
+  set_source_files_properties(aes.cpp PROPERTIES COMPILE_FLAGS -maes)
+endif()
+
+# Associate target with export
+install(
+    TARGETS nod
+    EXPORT nodTargets
+    ARCHIVE DESTINATION "lib"
+    INCLUDES DESTINATION include  # This sets the INTERFACE_INCLUDE_DIRECTORIES property of the target.
+)
+
+install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/../include/nod DESTINATION include)

lib/DirectoryEnumerator.cpp

@@ -1,283 +1,295 @@
+#include "nod/DirectoryEnumerator.hpp"
+#include "Util.hpp"
+
 #ifdef _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN
+#endif
 #include <windows.h>
 #else
-#include <sys/stat.h>
 #include <dirent.h>
+#include <sys/stat.h>
 #endif
 
+#include <cstring>
 #include <map>
 
-#include "nod/DirectoryEnumerator.hpp"
+namespace nod {
 
-namespace nod
-{
-
-DirectoryEnumerator::DirectoryEnumerator(const SystemChar* path, Mode mode,
-                                         bool sizeSort, bool reverse, bool noHidden)
-{
-    Sstat theStat;
-    if (Stat(path, &theStat) || !S_ISDIR(theStat.st_mode))
-        return;
+DirectoryEnumerator::DirectoryEnumerator(std::string_view path, Mode mode, bool sizeSort, bool reverse, bool noHidden) {
+  Sstat theStat;
+  if (Stat(path.data(), &theStat) || !S_ISDIR(theStat.st_mode)) {
+    return;
+  }
 
 #if _WIN32
-    SystemString wc(path);
-    wc += _S("/*");
-    WIN32_FIND_DATAW d;
-    HANDLE dir = FindFirstFileW(wc.c_str(), &d);
-    if (dir == INVALID_HANDLE_VALUE)
-        return;
-    switch (mode)
-    {
-    case Mode::Native:
-        do
-        {
-            if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
-                continue;
-            if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
-                continue;
-            SystemString fp(path);
-            fp += _S('/');
-            fp += d.cFileName;
-            Sstat st;
-            if (Stat(fp.c_str(), &st))
-                continue;
+  std::wstring wc = nowide::widen(path);
+  wc += L"/*";
+  WIN32_FIND_DATAW d;
+  HANDLE dir = FindFirstFileW(wc.c_str(), &d);
+  if (dir == INVALID_HANDLE_VALUE) {
+    return;
+  }
+  switch (mode) {
+  case Mode::Native:
+    do {
+      if (!wcscmp(d.cFileName, L".") || !wcscmp(d.cFileName, L"..")) {
+        continue;
+      }
+      if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0)) {
+        continue;
+      }
+      std::string fileName = nowide::narrow(d.cFileName);
+      std::string fp(path);
+      fp += '/';
+      fp += fileName;
+      Sstat st;
+      if (Stat(fp.c_str(), &st))
+        continue;
 
-            size_t sz = 0;
-            bool isDir = false;
-            if (S_ISDIR(st.st_mode))
-                isDir = true;
-            else if (S_ISREG(st.st_mode))
-                sz = st.st_size;
-            else
-                continue;
+      size_t sz = 0;
+      bool isDir = false;
+      if (S_ISDIR(st.st_mode)) {
+        isDir = true;
+      } else if (S_ISREG(st.st_mode)) {
+        sz = st.st_size;
+      } else {
+        continue;
+      }
 
-            m_entries.push_back(std::move(Entry(std::move(fp), d.cFileName, sz, isDir)));
-        } while (FindNextFileW(dir, &d));
-        break;
-    case Mode::DirsThenFilesSorted:
-    case Mode::DirsSorted:
-    {
-        std::map<SystemString, Entry, CaseInsensitiveCompare> sort;
-        do
-        {
-            if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
-                continue;
-            if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
-                continue;
-            SystemString fp(path);
-            fp +=_S('/');
-            fp += d.cFileName;
-            Sstat st;
-            if (Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
-                continue;
-            sort.emplace(std::make_pair(d.cFileName, Entry(std::move(fp), d.cFileName, 0, true)));
-        } while (FindNextFileW(dir, &d));
+      m_entries.emplace_back(fp, fileName, sz, isDir);
+    } while (FindNextFileW(dir, &d));
+    break;
+  case Mode::DirsThenFilesSorted:
+  case Mode::DirsSorted: {
+    std::map<std::string, Entry, CaseInsensitiveCompare> sort;
+    do {
+      if (!wcscmp(d.cFileName, L".") || !wcscmp(d.cFileName, L"..")) {
+        continue;
+      }
+      if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0)) {
+        continue;
+      }
+      std::string fileName = nowide::narrow(d.cFileName);
+      std::string fp(path);
+      fp += '/';
+      fp += fileName;
+      Sstat st;
+      if (Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode)) {
+        continue;
+      }
+      sort.emplace(fileName, Entry{fp, fileName, 0, true});
+    } while (FindNextFileW(dir, &d));
 
-        m_entries.reserve(sort.size());
-        if (reverse)
-            for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
-                m_entries.push_back(std::move(it->second));
-        else
-            for (auto& e : sort)
-                m_entries.push_back(std::move(e.second));
-
-        if (mode == Mode::DirsSorted)
-            break;
-        FindClose(dir);
-        dir = FindFirstFileW(wc.c_str(), &d);
+    m_entries.reserve(sort.size());
+    if (reverse) {
+      for (auto it = sort.crbegin(); it != sort.crend(); ++it) {
+        m_entries.emplace_back(std::move(it->second));
+      }
+    } else {
+      for (auto& e : sort) {
+        m_entries.emplace_back(std::move(e.second));
+      }
     }
-    case Mode::FilesSorted:
-    {
-        if (mode == Mode::FilesSorted)
-            m_entries.clear();
 
-        if (sizeSort)
-        {
-            std::multimap<size_t, Entry> sort;
-            do
-            {
-                if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
-                    continue;
-                if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
-                    continue;
-                SystemString fp(path);
-                fp += _S('/');
-                fp += d.cFileName;
-                Sstat st;
-                if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
-                    continue;
-                sort.emplace(std::make_pair(st.st_size, Entry(std::move(fp), d.cFileName, st.st_size, false)));
-            } while (FindNextFileW(dir, &d));
-
-            m_entries.reserve(sort.size());
-            if (reverse)
-                for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
-                    m_entries.push_back(std::move(it->second));
-            else
-                for (auto& e : sort)
-                    m_entries.push_back(std::move(e.second));
-        }
-        else
-        {
-            std::map<SystemString, Entry, CaseInsensitiveCompare> sort;
-            do
-            {
-                if (!wcscmp(d.cFileName, _S(".")) || !wcscmp(d.cFileName, _S("..")))
-                    continue;
-                if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0))
-                    continue;
-                SystemString fp(path);
-                fp += _S('/');
-                fp += d.cFileName;
-                Sstat st;
-                if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
-                    continue;
-                sort.emplace(std::make_pair(d.cFileName, Entry(std::move(fp), d.cFileName, st.st_size, false)));
-            } while (FindNextFileW(dir, &d));
-
-            m_entries.reserve(sort.size());
-            if (reverse)
-                for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
-                    m_entries.push_back(std::move(it->second));
-            else
-                for (auto& e : sort)
-                    m_entries.push_back(std::move(e.second));
-        }
-
-        break;
-    }
+    if (mode == Mode::DirsSorted) {
+      break;
     }
     FindClose(dir);
+    dir = FindFirstFileW(wc.c_str(), &d);
+  }
+  case Mode::FilesSorted: {
+    if (mode == Mode::FilesSorted) {
+      m_entries.clear();
+    }
+
+    if (sizeSort) {
+      std::multimap<size_t, Entry> sort;
+      do {
+        if (!wcscmp(d.cFileName, L".") || !wcscmp(d.cFileName, L"..")) {
+          continue;
+        }
+        if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0)) {
+          continue;
+        }
+        std::string fileName = nowide::narrow(d.cFileName);
+        std::string fp(path);
+        fp += '/';
+        fp += fileName;
+        Sstat st;
+        if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode)) {
+          continue;
+        }
+        sort.emplace(st.st_size, Entry{fp, fileName, static_cast<size_t>(st.st_size), false});
+      } while (FindNextFileW(dir, &d));
+
+      m_entries.reserve(m_entries.size() + sort.size());
+      if (reverse) {
+        for (auto it = sort.crbegin(); it != sort.crend(); ++it) {
+          m_entries.emplace_back(std::move(it->second));
+        }
+      } else {
+        for (auto& e : sort) {
+          m_entries.emplace_back(std::move(e.second));
+        }
+      }
+    } else {
+      std::map<std::string, Entry, CaseInsensitiveCompare> sort;
+      do {
+        if (!wcscmp(d.cFileName, L".") || !wcscmp(d.cFileName, L"..")) {
+          continue;
+        }
+        if (noHidden && (d.cFileName[0] == L'.' || (d.dwFileAttributes & FILE_ATTRIBUTE_HIDDEN) != 0)) {
+          continue;
+        }
+        std::string fileName = nowide::narrow(d.cFileName);
+        std::string fp(path);
+        fp += '/';
+        fp += fileName;
+        Sstat st;
+        if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode)) {
+          continue;
+        }
+        sort.emplace(fileName, Entry{fp, fileName, static_cast<size_t>(st.st_size), false});
+      } while (FindNextFileW(dir, &d));
+
+      m_entries.reserve(m_entries.size() + sort.size());
+      if (reverse) {
+        for (auto it = sort.crbegin(); it != sort.crend(); ++it) {
+          m_entries.emplace_back(std::move(it->second));
+        }
+      } else {
+        for (auto& e : sort) {
+          m_entries.emplace_back(std::move(e.second));
+        }
+      }
+    }
+
+    break;
+  }
+  }
+  FindClose(dir);
 
 #else
 
-    DIR* dir = opendir(path);
-    if (!dir)
-        return;
-    const dirent* d;
-    switch (mode)
-    {
-    case Mode::Native:
-        while ((d = readdir(dir)))
-        {
-            if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
-                continue;
-            if (noHidden && d->d_name[0] == '.')
-                continue;
-            SystemString fp(path);
-            fp += '/';
-            fp += d->d_name;
-            Sstat st;
-            if (Stat(fp.c_str(), &st))
-                continue;
+  DIR* dir = opendir(path.data());
+  if (!dir)
+    return;
+  const dirent* d;
+  switch (mode) {
+  case Mode::Native:
+    while ((d = readdir(dir))) {
+      if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+        continue;
+      if (noHidden && d->d_name[0] == '.')
+        continue;
+      std::string fp(path);
+      fp += '/';
+      fp += d->d_name;
+      Sstat st;
+      if (Stat(fp.c_str(), &st))
+        continue;
 
-            size_t sz = 0;
-            bool isDir = false;
-            if (S_ISDIR(st.st_mode))
-                isDir = true;
-            else if (S_ISREG(st.st_mode))
-                sz = st.st_size;
-            else
-                continue;
+      size_t sz = 0;
+      bool isDir = false;
+      if (S_ISDIR(st.st_mode))
+        isDir = true;
+      else if (S_ISREG(st.st_mode))
+        sz = st.st_size;
+      else
+        continue;
 
-            m_entries.push_back(Entry(std::move(fp), d->d_name, sz, isDir));
-        }
-        break;
-    case Mode::DirsThenFilesSorted:
-    case Mode::DirsSorted:
-    {
-        std::map<SystemString, Entry, CaseInsensitiveCompare> sort;
-        while ((d = readdir(dir)))
-        {
-            if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
-                continue;
-            if (noHidden && d->d_name[0] == '.')
-                continue;
-            SystemString fp(path);
-            fp += '/';
-            fp += d->d_name;
-            Sstat st;
-            if (Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
-                continue;
-            sort.emplace(std::make_pair(d->d_name, Entry(std::move(fp), d->d_name, 0, true)));
-        }
-
-        m_entries.reserve(sort.size());
-        if (reverse)
-            for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
-                m_entries.push_back(std::move(it->second));
-        else
-            for (auto& e : sort)
-                m_entries.push_back(std::move(e.second));
-
-        if (mode == Mode::DirsSorted)
-            break;
-        rewinddir(dir);
+      m_entries.push_back(Entry(fp, d->d_name, sz, isDir));
     }
-    case Mode::FilesSorted:
-    {
-        if (mode == Mode::FilesSorted)
-            m_entries.clear();
-
-        if (sizeSort)
-        {
-            std::multimap<size_t, Entry> sort;
-            while ((d = readdir(dir)))
-            {
-                if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
-                    continue;
-                if (noHidden && d->d_name[0] == '.')
-                    continue;
-                SystemString fp(path);
-                fp += '/';
-                fp += d->d_name;
-                Sstat st;
-                if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
-                    continue;
-                sort.emplace(std::make_pair(st.st_size, Entry(std::move(fp), d->d_name, st.st_size, false)));
-            }
-
-            m_entries.reserve(sort.size());
-            if (reverse)
-                for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
-                    m_entries.push_back(std::move(it->second));
-            else
-                for (auto& e : sort)
-                    m_entries.push_back(std::move(e.second));
-        }
-        else
-        {
-            std::map<SystemString, Entry, CaseInsensitiveCompare> sort;
-            while ((d = readdir(dir)))
-            {
-                if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
-                    continue;
-                if (noHidden && d->d_name[0] == '.')
-                    continue;
-                SystemString fp(path);
-                fp += '/';
-                fp += d->d_name;
-                Sstat st;
-                if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
-                    continue;
-                sort.emplace(std::make_pair(d->d_name, Entry(std::move(fp), d->d_name, st.st_size, false)));
-            }
-
-            m_entries.reserve(sort.size());
-            if (reverse)
-                for (auto it=sort.crbegin() ; it != sort.crend() ; ++it)
-                    m_entries.push_back(std::move(it->second));
-            else
-                for (auto& e : sort)
-                    m_entries.push_back(std::move(e.second));
-        }
-
-        break;
+    break;
+  case Mode::DirsThenFilesSorted:
+  case Mode::DirsSorted: {
+    std::map<std::string, Entry, CaseInsensitiveCompare> sort;
+    while ((d = readdir(dir))) {
+      if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+        continue;
+      if (noHidden && d->d_name[0] == '.')
+        continue;
+      std::string fp(path);
+      fp += '/';
+      fp += d->d_name;
+      Sstat st;
+      if (Stat(fp.c_str(), &st) || !S_ISDIR(st.st_mode))
+        continue;
+      sort.emplace(std::make_pair(d->d_name, Entry(fp, d->d_name, 0, true)));
     }
+
+    m_entries.reserve(sort.size());
+    if (reverse)
+      for (auto it = sort.crbegin(); it != sort.crend(); ++it)
+        m_entries.push_back(std::move(it->second));
+    else
+      for (auto& e : sort)
+        m_entries.push_back(std::move(e.second));
+
+    if (mode == Mode::DirsSorted)
+      break;
+    rewinddir(dir);
+    [[fallthrough]];
+  }
+  case Mode::FilesSorted: {
+    if (mode == Mode::FilesSorted)
+      m_entries.clear();
+
+    if (sizeSort) {
+      std::multimap<size_t, Entry> sort;
+      while ((d = readdir(dir))) {
+        if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+          continue;
+        if (noHidden && d->d_name[0] == '.')
+          continue;
+        std::string fp(path);
+        fp += '/';
+        fp += d->d_name;
+        Sstat st;
+        if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
+          continue;
+        sort.emplace(std::make_pair(st.st_size, Entry(fp, d->d_name, st.st_size, false)));
+      }
+
+      m_entries.reserve(sort.size());
+      if (reverse)
+        for (auto it = sort.crbegin(); it != sort.crend(); ++it)
+          m_entries.push_back(std::move(it->second));
+      else
+        for (auto& e : sort)
+          m_entries.push_back(std::move(e.second));
+    } else {
+      std::map<std::string, Entry, CaseInsensitiveCompare> sort;
+      while ((d = readdir(dir))) {
+        if (!strcmp(d->d_name, ".") || !strcmp(d->d_name, ".."))
+          continue;
+        if (noHidden && d->d_name[0] == '.')
+          continue;
+        std::string fp(path);
+        fp += '/';
+        fp += d->d_name;
+        Sstat st;
+        if (Stat(fp.c_str(), &st) || !S_ISREG(st.st_mode))
+          continue;
+        sort.emplace(std::make_pair(d->d_name, Entry(fp, d->d_name, st.st_size, false)));
+      }
+
+      m_entries.reserve(sort.size());
+      if (reverse)
+        for (auto it = sort.crbegin(); it != sort.crend(); ++it)
+          m_entries.push_back(std::move(it->second));
+      else
+        for (auto& e : sort)
+          m_entries.push_back(std::move(e.second));
     }
-    closedir(dir);
+
+    break;
+  }
+  }
+  closedir(dir);
 
 #endif
 }
 
-}
+} // namespace nod

lib/DiscGCN.cpp

@@ -1,468 +1,433 @@
 #include "nod/DiscGCN.hpp"
+
+#include <cinttypes>
+#include <cstddef>
+#include <cstdint>
+#include <memory>
+#include <string>
+
 #include "nod/nod.hpp"
-#include <inttypes.h>
+#include "Util.hpp"
+
+#include <spdlog/spdlog.h>
+
 #define BUFFER_SZ 0x8000
 
-namespace nod
-{
+namespace nod {
 
-class PartitionGCN : public DiscBase::IPartition
-{
+class PartitionGCN : public IPartition {
 public:
-    PartitionGCN(const DiscGCN& parent, uint64_t offset, bool& err)
-    : IPartition(parent, PartitionKind::Data, false, offset)
-    {
-        /* GCN-specific header reads */
-        std::unique_ptr<IPartReadStream> s = beginReadStream(0x0);
-        if (!s)
-        {
-            err = true;
-            return;
-        }
-        m_header.read(*s);
-        m_bi2Header.read(*s);
-        m_dolOff = m_header.m_dolOff;
-        m_fstOff = m_header.m_fstOff;
-        m_fstSz = m_header.m_fstSz;
-        uint32_t vals[2];
-        s->seek(0x2440 + 0x14);
-        s->read(vals, 8);
-        m_apploaderSz = 32 + SBig(vals[0]) + SBig(vals[1]);
-
-        /* Yay files!! */
-        parseFST(*s);
-
-        /* Also make DOL header and size handy */
-        s->seek(m_dolOff);
-        parseDOL(*s);
+  PartitionGCN(const DiscGCN& parent, uint64_t offset, bool& err)
+  : IPartition(parent, PartitionKind::Data, false, offset) {
+    /* GCN-specific header reads */
+    std::unique_ptr<IPartReadStream> s = beginReadStream(0x0);
+    if (!s) {
+      err = true;
+      return;
     }
+    m_header.read(*s);
+    m_bi2Header.read(*s);
+    m_dolOff = m_header.m_dolOff;
+    m_fstOff = m_header.m_fstOff;
+    m_fstSz = m_header.m_fstSz;
+    uint32_t vals[2];
+    s->seek(0x2440 + 0x14);
+    s->read(vals, 8);
+    m_apploaderSz = 32 + SBig(vals[0]) + SBig(vals[1]);
 
-    class PartReadStream : public IPartReadStream
-    {
-        const PartitionGCN& m_parent;
-        std::unique_ptr<IReadStream> m_dio;
+    /* Yay files!! */
+    parseFST(*s);
 
-        uint64_t m_offset;
-        size_t m_curBlock = SIZE_MAX;
-        uint8_t m_buf[BUFFER_SZ];
+    /* Also make DOL header and size handy */
+    s->seek(m_dolOff);
+    parseDOL(*s);
+  }
 
-    public:
-        PartReadStream(const PartitionGCN& parent, uint64_t offset, bool& err)
-        : m_parent(parent), m_offset(offset)
-        {
-            size_t block = m_offset / BUFFER_SZ;
-            m_dio = m_parent.m_parent.getDiscIO().beginReadStream(block * BUFFER_SZ);
-            if (!m_dio)
-            {
-                err = true;
-                return;
-            }
-            m_dio->read(m_buf, BUFFER_SZ);
-            m_curBlock = block;
-        }
-        void seek(int64_t offset, int whence)
-        {
-            if (whence == SEEK_SET)
-                m_offset = offset;
-            else if (whence == SEEK_CUR)
-                m_offset += offset;
-            else
-                return;
-            size_t block = m_offset / BUFFER_SZ;
-            if (block != m_curBlock)
-            {
-                m_dio->seek(block * BUFFER_SZ);
-                m_dio->read(m_buf, BUFFER_SZ);
-                m_curBlock = block;
-            }
-        }
-        uint64_t position() const {return m_offset;}
-        uint64_t read(void* buf, uint64_t length)
-        {
-            size_t block = m_offset / BUFFER_SZ;
-            size_t cacheOffset = m_offset % BUFFER_SZ;
-            uint64_t cacheSize;
-            uint64_t rem = length;
-            uint8_t* dst = (uint8_t*)buf;
+  class PartReadStream : public IPartReadStream {
+    const PartitionGCN& m_parent;
+    std::unique_ptr<IReadStream> m_dio;
 
-            while (rem)
-            {
-                if (block != m_curBlock)
-                {
-                    m_dio->read(m_buf, BUFFER_SZ);
-                    m_curBlock = block;
-                }
+    uint64_t m_offset;
+    size_t m_curBlock = SIZE_MAX;
+    uint8_t m_buf[BUFFER_SZ];
 
-                cacheSize = rem;
-                if (cacheSize + cacheOffset > BUFFER_SZ)
-                    cacheSize = BUFFER_SZ - cacheOffset;
-
-                memmove(dst, m_buf + cacheOffset, cacheSize);
-                dst += cacheSize;
-                rem -= cacheSize;
-                cacheOffset = 0;
-                ++block;
-            }
-
-            m_offset += length;
-            return dst - (uint8_t*)buf;
-        }
-    };
-
-    std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset) const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IPartReadStream>(new PartReadStream(*this, offset, Err));
-        if (Err)
-            return {};
-        return ret;
-    }
-};
-
-DiscGCN::DiscGCN(std::unique_ptr<IDiscIO>&& dio, bool& err)
-: DiscBase(std::move(dio), err)
-{
-    if (err)
+  public:
+    PartReadStream(const PartitionGCN& parent, uint64_t offset, bool& err) : m_parent(parent), m_offset(offset) {
+      size_t block = m_offset / BUFFER_SZ;
+      m_dio = m_parent.m_parent.getDiscIO().beginReadStream(block * BUFFER_SZ);
+      if (!m_dio) {
+        err = true;
         return;
+      }
+      m_dio->read(m_buf, BUFFER_SZ);
+      m_curBlock = block;
+    }
+    void seek(int64_t offset, int whence) override {
+      if (whence == SEEK_SET)
+        m_offset = offset;
+      else if (whence == SEEK_CUR)
+        m_offset += offset;
+      else
+        return;
+      size_t block = m_offset / BUFFER_SZ;
+      if (block != m_curBlock) {
+        m_dio->seek(block * BUFFER_SZ);
+        m_dio->read(m_buf, BUFFER_SZ);
+        m_curBlock = block;
+      }
+    }
+    uint64_t position() const override { return m_offset; }
+    uint64_t read(void* buf, uint64_t length) override {
+      size_t block = m_offset / BUFFER_SZ;
+      size_t cacheOffset = m_offset % BUFFER_SZ;
+      uint64_t cacheSize;
+      uint64_t rem = length;
+      uint8_t* dst = (uint8_t*)buf;
 
-    /* One lone partition for GCN */
-    m_partitions.emplace_back(new PartitionGCN(*this, 0, err));
-}
-
-DiscBuilderGCN DiscGCN::makeMergeBuilder(const SystemChar* outPath, FProgress progressCB)
-{
-    return DiscBuilderGCN(outPath, progressCB);
-}
-
-bool DiscGCN::extractDiscHeaderFiles(const SystemString& path, const ExtractionContext& ctx) const
-{
-    return true;
-}
-
-class PartitionBuilderGCN : public DiscBuilderBase::PartitionBuilderBase
-{
-    uint64_t m_curUser = 0x57058000;
-
-public:
-    class PartWriteStream : public IPartWriteStream
-    {
-        const PartitionBuilderGCN& m_parent;
-        uint64_t m_offset;
-        std::unique_ptr<IFileIO::IWriteStream> m_fio;
-
-    public:
-        PartWriteStream(const PartitionBuilderGCN& parent, uint64_t offset, bool& err)
-        : m_parent(parent), m_offset(offset)
-        {
-            m_fio = m_parent.m_parent.getFileIO().beginWriteStream(offset);
-            if (!m_fio)
-                err = true;
+      while (rem) {
+        if (block != m_curBlock) {
+          m_dio->read(m_buf, BUFFER_SZ);
+          m_curBlock = block;
         }
-        void close() {m_fio.reset();}
-        uint64_t position() const {return m_offset;}
-        uint64_t write(const void* buf, uint64_t length)
-        {
-            uint64_t len = m_fio->write(buf, length);
-            m_offset += len;
-            return len;
-        }
-        void seek(size_t off)
-        {
-            m_offset = off;
-            m_fio = m_parent.m_parent.getFileIO().beginWriteStream(off);
-        }
-    };
 
-    PartitionBuilderGCN(DiscBuilderBase& parent)
-    : DiscBuilderBase::PartitionBuilderBase(parent, PartitionKind::Data, false) {}
+        cacheSize = rem;
+        if (cacheSize + cacheOffset > BUFFER_SZ)
+          cacheSize = BUFFER_SZ - cacheOffset;
 
-    uint64_t userAllocate(uint64_t reqSz, IPartWriteStream& ws)
-    {
-        m_curUser -= reqSz;
-        m_curUser &= 0xfffffffffffffff0;
-        if (m_curUser < 0x30000)
-        {
-            LogModule.report(logvisor::Error, "user area low mark reached");
-            return -1;
-        }
-        static_cast<PartWriteStream&>(ws).seek(m_curUser);
-        return m_curUser;
+        memmove(dst, m_buf + cacheOffset, cacheSize);
+        dst += cacheSize;
+        rem -= cacheSize;
+        cacheOffset = 0;
+        ++block;
+      }
+
+      m_offset += length;
+      return dst - (uint8_t*)buf;
+    }
+  };
+
+  std::unique_ptr<IPartReadStream> beginReadStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::make_unique<PartReadStream>(*this, offset, err);
+
+    if (err) {
+      return nullptr;
     }
 
-    uint32_t packOffset(uint64_t offset) const
-    {
-        return offset;
-    }
-
-    std::unique_ptr<IPartWriteStream> beginWriteStream(uint64_t offset)
-    {
-        bool Err = false;
-        std::unique_ptr<IPartWriteStream> ret = std::make_unique<PartWriteStream>(*this, offset, Err);
-        if (Err)
-            return {};
-        return ret;
-    }
-
-    bool _build(const std::function<bool(IPartWriteStream&, uint32_t, uint32_t,
-                                         uint32_t, uint32_t, uint32_t)>& headerFunc,
-                const std::function<bool(IPartWriteStream&)>& bi2Func,
-                const std::function<bool(IPartWriteStream&, size_t&)>& apploaderFunc)
-    {
-        std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0x2440);
-        if (!ws)
-            return false;
-        size_t xferSz = 0;
-        if (!apploaderFunc(*ws, xferSz))
-            return false;
-
-        size_t fstOff = ROUND_UP_32(xferSz);
-        size_t fstSz = sizeof(FSTNode) * m_buildNodes.size();
-        for (size_t i=0 ; i<fstOff-xferSz ; ++i)
-            ws->write("\xff", 1);
-        fstOff += 0x2440;
-        ws->write(m_buildNodes.data(), fstSz);
-        for (const std::string& str : m_buildNames)
-            ws->write(str.data(), str.size()+1);
-        fstSz += m_buildNameOff;
-        fstSz = ROUND_UP_32(fstSz);
-
-        if (fstOff + fstSz >= m_curUser)
-        {
-            LogModule.report(logvisor::Error,
-                             "FST flows into user area (one or the other is too big)");
-            return false;
-        }
-
-        ws = beginWriteStream(0);
-        if (!ws)
-            return false;
-        if (!headerFunc(*ws, m_dolOffset, fstOff, fstSz, m_curUser, 0x57058000 - m_curUser))
-            return false;
-        if (!bi2Func(*ws))
-            return false;
-
-        return true;
-    }
-
-    bool buildFromDirectory(const SystemChar* dirIn)
-    {
-        std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0);
-        if (!ws)
-            return false;
-        bool result = DiscBuilderBase::PartitionBuilderBase::buildFromDirectory(*ws, dirIn);
-        if (!result)
-            return false;
-
-        SystemString dirStr(dirIn);
-
-        /* Check Apploader */
-        SystemString apploaderIn = dirStr + _S("/sys/apploader.img");
-        Sstat apploaderStat;
-        if (Stat(apploaderIn.c_str(), &apploaderStat))
-        {
-            LogModule.report(logvisor::Error, _S("unable to stat %s"), apploaderIn.c_str());
-            return -1;
-        }
-
-        /* Check Boot */
-        SystemString bootIn = dirStr + _S("/sys/boot.bin");
-        Sstat bootStat;
-        if (Stat(bootIn.c_str(), &bootStat))
-        {
-            LogModule.report(logvisor::Error, _S("unable to stat %s"), bootIn.c_str());
-            return -1;
-        }
-
-        /* Check BI2 */
-        SystemString bi2In = dirStr + _S("/sys/bi2.bin");
-        Sstat bi2Stat;
-        if (Stat(bi2In.c_str(), &bi2Stat))
-        {
-            LogModule.report(logvisor::Error, _S("unable to stat %s"), bi2In.c_str());
-            return -1;
-        }
-
-        return _build(
-        [this, &bootIn](IPartWriteStream& ws, uint32_t dolOff, uint32_t fstOff, uint32_t fstSz,
-                        uint32_t userOff, uint32_t userSz) -> bool
-        {
-            std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(bootIn.c_str())->beginReadStream();
-            if (!rs)
-                return false;
-            Header header;
-            header.read(*rs);
-            header.m_dolOff = dolOff;
-            header.m_fstOff = fstOff;
-            header.m_fstSz = fstSz;
-            header.m_fstMaxSz = fstSz;
-            header.m_userPosition = userOff;
-            header.m_userSz = userSz;
-            header.write(ws);
-            return true;
-        },
-        [this, &bi2In](IPartWriteStream& ws) -> bool
-        {
-            std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(bi2In.c_str())->beginReadStream();
-            if (!rs)
-                return false;
-            BI2Header bi2;
-            bi2.read(*rs);
-            bi2.write(ws);
-            return true;
-        },
-        [this, &apploaderIn](IPartWriteStream& ws, size_t& xferSz) -> bool
-        {
-            std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(apploaderIn.c_str())->beginReadStream();
-            if (!rs)
-                return false;
-            char buf[8192];
-            while (true)
-            {
-                size_t rdSz = rs->read(buf, 8192);
-                if (!rdSz)
-                    break;
-                ws.write(buf, rdSz);
-                xferSz += rdSz;
-                if (0x2440 + xferSz >= m_curUser)
-                {
-                    LogModule.report(logvisor::Error,
-                                     "apploader flows into user area (one or the other is too big)");
-                    return false;
-                }
-                m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderIn, xferSz);
-            }
-            ++m_parent.m_progressIdx;
-            return true;
-        });
-    }
-
-    bool mergeFromDirectory(const PartitionGCN* partIn, const SystemChar* dirIn)
-    {
-        std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0);
-        if (!ws)
-            return false;
-        bool result = DiscBuilderBase::PartitionBuilderBase::mergeFromDirectory(*ws, partIn, dirIn);
-        if (!result)
-            return false;
-
-        return _build(
-        [this, partIn](IPartWriteStream& ws, uint32_t dolOff, uint32_t fstOff, uint32_t fstSz,
-                       uint32_t userOff, uint32_t userSz) -> bool
-        {
-            Header header = partIn->getHeader();
-            header.m_dolOff = dolOff;
-            header.m_fstOff = fstOff;
-            header.m_fstSz = fstSz;
-            header.m_fstMaxSz = fstSz;
-            header.m_userPosition = userOff;
-            header.m_userSz = userSz;
-            header.write(ws);
-            return true;
-        },
-        [this, partIn](IPartWriteStream& ws) -> bool
-        {
-            partIn->getBI2().write(ws);
-            return true;
-        },
-        [this, partIn](IPartWriteStream& ws, size_t& xferSz) -> bool
-        {
-            std::unique_ptr<uint8_t[]> apploaderBuf = partIn->getApploaderBuf();
-            size_t apploaderSz = partIn->getApploaderSize();
-            SystemString apploaderName(_S("<apploader>"));
-            ws.write(apploaderBuf.get(), apploaderSz);
-            xferSz += apploaderSz;
-            if (0x2440 + xferSz >= m_curUser)
-            {
-                LogModule.report(logvisor::Error,
-                                 "apploader flows into user area (one or the other is too big)");
-                return false;
-            }
-            m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderName, xferSz);
-            ++m_parent.m_progressIdx;
-            return true;
-        });
-    }
+    return ret;
+  }
 };
 
-EBuildResult DiscBuilderGCN::buildFromDirectory(const SystemChar* dirIn)
-{
-    if (!m_fileIO->beginWriteStream())
-        return EBuildResult::Failed;
-    if (!CheckFreeSpace(m_outPath.c_str(), 0x57058000))
-    {
-        LogModule.report(logvisor::Error, _S("not enough free disk space for %s"), m_outPath.c_str());
-        return EBuildResult::DiskFull;
+DiscGCN::DiscGCN(std::unique_ptr<IDiscIO>&& dio, bool& err) : DiscBase(std::move(dio), err) {
+  if (err)
+    return;
+
+  /* One lone partition for GCN */
+  m_partitions.emplace_back(std::make_unique<PartitionGCN>(*this, 0, err));
+}
+
+DiscBuilderGCN DiscGCN::makeMergeBuilder(std::string_view outPath, FProgress progressCB) {
+  return DiscBuilderGCN(outPath, progressCB);
+}
+
+bool DiscGCN::extractDiscHeaderFiles(std::string_view path, const ExtractionContext& ctx) const { return true; }
+
+class PartitionBuilderGCN : public DiscBuilderBase::PartitionBuilderBase {
+  uint64_t m_curUser = 0x57058000;
+
+public:
+  class PartWriteStream : public IPartWriteStream {
+    const PartitionBuilderGCN& m_parent;
+    uint64_t m_offset;
+    std::unique_ptr<IFileIO::IWriteStream> m_fio;
+
+  public:
+    PartWriteStream(const PartitionBuilderGCN& parent, uint64_t offset, bool& err)
+    : m_parent(parent), m_offset(offset) {
+      m_fio = m_parent.m_parent.getFileIO().beginWriteStream(offset);
+      if (!m_fio)
+        err = true;
     }
-    m_progressCB(getProgressFactor(), _S("Preallocating image"), -1);
-    ++m_progressIdx;
-    auto ws = m_fileIO->beginWriteStream(0x57058000 - 1);
+    void close() override { m_fio.reset(); }
+    uint64_t position() const override { return m_offset; }
+    uint64_t write(const void* buf, uint64_t length) override {
+      uint64_t len = m_fio->write(buf, length);
+      m_offset += len;
+      return len;
+    }
+    void seek(size_t off) {
+      m_offset = off;
+      m_fio = m_parent.m_parent.getFileIO().beginWriteStream(off);
+    }
+  };
+
+  PartitionBuilderGCN(DiscBuilderBase& parent)
+  : DiscBuilderBase::PartitionBuilderBase(parent, PartitionKind::Data, false) {}
+
+  uint64_t userAllocate(uint64_t reqSz, IPartWriteStream& ws) override {
+    m_curUser -= reqSz;
+    m_curUser &= 0xfffffffffffffff0;
+    if (m_curUser < 0x30000) {
+      spdlog::error("user area low mark reached");
+      return -1;
+    }
+    static_cast<PartWriteStream&>(ws).seek(m_curUser);
+    return m_curUser;
+  }
+
+  uint32_t packOffset(uint64_t offset) const override { return offset; }
+
+  std::unique_ptr<IPartWriteStream> beginWriteStream(uint64_t offset) override {
+    bool err = false;
+    auto ret = std::make_unique<PartWriteStream>(*this, offset, err);
+
+    if (err) {
+      return nullptr;
+    }
+
+    return ret;
+  }
+
+  bool
+  _build(const std::function<bool(IPartWriteStream&, uint32_t, uint32_t, uint32_t, uint32_t, uint32_t)>& headerFunc,
+         const std::function<bool(IPartWriteStream&)>& bi2Func,
+         const std::function<bool(IPartWriteStream&, size_t&)>& apploaderFunc) {
+    std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0x2440);
     if (!ws)
-        return EBuildResult::Failed;
-    ws->write("", 1);
+      return false;
+    size_t xferSz = 0;
+    if (!apploaderFunc(*ws, xferSz))
+      return false;
 
-    PartitionBuilderGCN& pb = static_cast<PartitionBuilderGCN&>(*m_partitions[0]);
-    return pb.buildFromDirectory(dirIn) ? EBuildResult::Success : EBuildResult::Failed;
-}
+    size_t fstOff = ROUND_UP_32(xferSz);
+    size_t fstSz = sizeof(FSTNode) * m_buildNodes.size();
+    for (size_t i = 0; i < fstOff - xferSz; ++i)
+      ws->write("\xff", 1);
+    fstOff += 0x2440;
+    ws->write(m_buildNodes.data(), fstSz);
+    for (const std::string& str : m_buildNames)
+      ws->write(str.data(), str.size() + 1);
+    fstSz += m_buildNameOff;
+    fstSz = ROUND_UP_32(fstSz);
 
-uint64_t DiscBuilderGCN::CalculateTotalSizeRequired(const SystemChar* dirIn)
-{
-    uint64_t sz = DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeBuild(dirIn, PartitionKind::Data, false);
-    if (sz == -1)
-        return -1;
-    sz += 0x30000;
-    if (sz > 0x57058000)
-    {
-        LogModule.report(logvisor::Error, _S("disc capacity exceeded [%" PRIu64 " / %" PRIu64 "]"), sz, 0x57058000);
-        return -1;
+    if (fstOff + fstSz >= m_curUser) {
+      spdlog::error("FST flows into user area (one or the other is too big)");
+      return false;
     }
-    return sz;
-}
 
-DiscBuilderGCN::DiscBuilderGCN(const SystemChar* outPath, FProgress progressCB)
-: DiscBuilderBase(outPath, 0x57058000, progressCB)
-{
-    PartitionBuilderGCN* partBuilder = new PartitionBuilderGCN(*this);
-    m_partitions.emplace_back(partBuilder);
-}
-
-DiscMergerGCN::DiscMergerGCN(const SystemChar* outPath, DiscGCN& sourceDisc, FProgress progressCB)
-: m_sourceDisc(sourceDisc), m_builder(sourceDisc.makeMergeBuilder(outPath, progressCB))
-{}
-
-EBuildResult DiscMergerGCN::mergeFromDirectory(const SystemChar* dirIn)
-{
-    if (!m_builder.getFileIO().beginWriteStream())
-        return EBuildResult::Failed;
-    if (!CheckFreeSpace(m_builder.m_outPath.c_str(), 0x57058000))
-    {
-        LogModule.report(logvisor::Error, _S("not enough free disk space for %s"), m_builder.m_outPath.c_str());
-        return EBuildResult::DiskFull;
-    }
-    m_builder.m_progressCB(m_builder.getProgressFactor(), _S("Preallocating image"), -1);
-    ++m_builder.m_progressIdx;
-    auto ws = m_builder.m_fileIO->beginWriteStream(0x57058000 - 1);
+    ws = beginWriteStream(0);
     if (!ws)
-        return EBuildResult::Failed;
-    ws->write("", 1);
+      return false;
+    if (!headerFunc(*ws, m_dolOffset, fstOff, fstSz, m_curUser, 0x57058000 - m_curUser))
+      return false;
+    if (!bi2Func(*ws))
+      return false;
 
-    PartitionBuilderGCN& pb = static_cast<PartitionBuilderGCN&>(*m_builder.m_partitions[0]);
-    return pb.mergeFromDirectory(static_cast<PartitionGCN*>(m_sourceDisc.getDataPartition()), dirIn) ?
-           EBuildResult::Success : EBuildResult::Failed;
-}
+    return true;
+  }
 
-uint64_t DiscMergerGCN::CalculateTotalSizeRequired(DiscGCN& sourceDisc, const SystemChar* dirIn)
-{
-    uint64_t sz = DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeMerge(
-                  sourceDisc.getDataPartition(), dirIn);
-    if (sz == -1)
-        return -1;
-    sz += 0x30000;
-    if (sz > 0x57058000)
-    {
-        LogModule.report(logvisor::Error, _S("disc capacity exceeded [%" PRIu64 " / %" PRIu64 "]"), sz, 0x57058000);
-        return -1;
+  bool buildFromDirectory(std::string_view dirIn) {
+    std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0);
+    if (!ws)
+      return false;
+    bool result = DiscBuilderBase::PartitionBuilderBase::buildFromDirectory(*ws, dirIn);
+    if (!result)
+      return false;
+
+    std::string dirStr(dirIn);
+
+    /* Check Apploader */
+    std::string apploaderIn = dirStr + "/sys/apploader.img";
+    Sstat apploaderStat;
+    if (Stat(apploaderIn.c_str(), &apploaderStat)) {
+      spdlog::error("unable to stat {}", apploaderIn);
+      return false;
     }
-    return sz;
+
+    /* Check Boot */
+    std::string bootIn = dirStr + "/sys/boot.bin";
+    Sstat bootStat;
+    if (Stat(bootIn.c_str(), &bootStat)) {
+      spdlog::error("unable to stat {}", bootIn);
+      return false;
+    }
+
+    /* Check BI2 */
+    std::string bi2In = dirStr + "/sys/bi2.bin";
+    Sstat bi2Stat;
+    if (Stat(bi2In.c_str(), &bi2Stat)) {
+      spdlog::error("unable to stat {}", bi2In);
+      return false;
+    }
+
+    return _build(
+        [&bootIn](IPartWriteStream& ws, uint32_t dolOff, uint32_t fstOff, uint32_t fstSz, uint32_t userOff,
+                  uint32_t userSz) -> bool {
+          std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(bootIn.c_str())->beginReadStream();
+          if (!rs)
+            return false;
+          Header header;
+          header.read(*rs);
+          header.m_dolOff = dolOff;
+          header.m_fstOff = fstOff;
+          header.m_fstSz = fstSz;
+          header.m_fstMaxSz = fstSz;
+          header.m_userPosition = userOff;
+          header.m_userSz = userSz;
+          header.write(ws);
+          return true;
+        },
+        [&bi2In](IPartWriteStream& ws) -> bool {
+          std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(bi2In.c_str())->beginReadStream();
+          if (!rs)
+            return false;
+          BI2Header bi2;
+          bi2.read(*rs);
+          bi2.write(ws);
+          return true;
+        },
+        [this, &apploaderIn](IPartWriteStream& ws, size_t& xferSz) -> bool {
+          std::unique_ptr<IFileIO::IReadStream> rs = NewFileIO(apploaderIn.c_str())->beginReadStream();
+          if (!rs)
+            return false;
+          char buf[8192];
+          while (true) {
+            size_t rdSz = rs->read(buf, 8192);
+            if (!rdSz)
+              break;
+            ws.write(buf, rdSz);
+            xferSz += rdSz;
+            if (0x2440 + xferSz >= m_curUser) {
+              spdlog::error("apploader flows into user area (one or the other is too big)");
+              return false;
+            }
+            m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderIn, xferSz);
+          }
+          ++m_parent.m_progressIdx;
+          return true;
+        });
+  }
+
+  bool mergeFromDirectory(const PartitionGCN* partIn, std::string_view dirIn) {
+    std::unique_ptr<IPartWriteStream> ws = beginWriteStream(0);
+    if (!ws)
+      return false;
+    bool result = DiscBuilderBase::PartitionBuilderBase::mergeFromDirectory(*ws, partIn, dirIn);
+    if (!result)
+      return false;
+
+    return _build(
+        [partIn](IPartWriteStream& ws, uint32_t dolOff, uint32_t fstOff, uint32_t fstSz, uint32_t userOff,
+                 uint32_t userSz) -> bool {
+          Header header = partIn->getHeader();
+          header.m_dolOff = dolOff;
+          header.m_fstOff = fstOff;
+          header.m_fstSz = fstSz;
+          header.m_fstMaxSz = fstSz;
+          header.m_userPosition = userOff;
+          header.m_userSz = userSz;
+          header.write(ws);
+          return true;
+        },
+        [partIn](IPartWriteStream& ws) -> bool {
+          partIn->getBI2().write(ws);
+          return true;
+        },
+        [this, partIn](IPartWriteStream& ws, size_t& xferSz) -> bool {
+          std::unique_ptr<uint8_t[]> apploaderBuf = partIn->getApploaderBuf();
+          size_t apploaderSz = partIn->getApploaderSize();
+          std::string apploaderName("<apploader>");
+          ws.write(apploaderBuf.get(), apploaderSz);
+          xferSz += apploaderSz;
+          if (0x2440 + xferSz >= m_curUser) {
+            spdlog::error("apploader flows into user area (one or the other is too big)");
+            return false;
+          }
+          m_parent.m_progressCB(m_parent.getProgressFactor(), apploaderName, xferSz);
+          ++m_parent.m_progressIdx;
+          return true;
+        });
+  }
+};
+
+EBuildResult DiscBuilderGCN::buildFromDirectory(std::string_view dirIn) {
+  if (!m_fileIO->beginWriteStream())
+    return EBuildResult::Failed;
+  if (!CheckFreeSpace(m_outPath.c_str(), 0x57058000)) {
+    spdlog::error("not enough free disk space for {}", m_outPath);
+    return EBuildResult::DiskFull;
+  }
+  m_progressCB(getProgressFactor(), "Preallocating image", -1);
+  ++m_progressIdx;
+  {
+    auto ws = m_fileIO->beginWriteStream(0);
+    if (!ws)
+      return EBuildResult::Failed;
+    char zeroBytes[1024] = {};
+    for (uint64_t i = 0; i < 0x57058000; i += 1024)
+      ws->write(zeroBytes, 1024);
+  }
+
+  PartitionBuilderGCN& pb = static_cast<PartitionBuilderGCN&>(*m_partitions[0]);
+  return pb.buildFromDirectory(dirIn) ? EBuildResult::Success : EBuildResult::Failed;
 }
 
+std::optional<uint64_t> DiscBuilderGCN::CalculateTotalSizeRequired(std::string_view dirIn) {
+  std::optional<uint64_t> sz =
+      DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeBuild(dirIn, PartitionKind::Data, false);
+  if (!sz)
+    return sz;
+  *sz += 0x30000;
+  if (sz > 0x57058000) {
+    spdlog::error("disc capacity exceeded [{} / {}]", *sz, 0x57058000);
+    return std::nullopt;
+  }
+  return sz;
 }
+
+DiscBuilderGCN::DiscBuilderGCN(std::string_view outPath, FProgress progressCB)
+: DiscBuilderBase(outPath, 0x57058000, progressCB) {
+  m_partitions.emplace_back(std::make_unique<PartitionBuilderGCN>(*this));
+}
+
+DiscMergerGCN::DiscMergerGCN(std::string_view outPath, DiscGCN& sourceDisc, FProgress progressCB)
+: m_sourceDisc(sourceDisc), m_builder(sourceDisc.makeMergeBuilder(outPath, progressCB)) {}
+
+EBuildResult DiscMergerGCN::mergeFromDirectory(std::string_view dirIn) {
+  if (!m_builder.getFileIO().beginWriteStream())
+    return EBuildResult::Failed;
+  if (!CheckFreeSpace(m_builder.m_outPath.c_str(), 0x57058000)) {
+    spdlog::error("not enough free disk space for {}", m_builder.m_outPath);
+    return EBuildResult::DiskFull;
+  }
+  m_builder.m_progressCB(m_builder.getProgressFactor(), "Preallocating image", -1);
+  ++m_builder.m_progressIdx;
+  {
+    auto ws = m_builder.m_fileIO->beginWriteStream(0);
+    if (!ws)
+      return EBuildResult::Failed;
+    char zeroBytes[1024] = {};
+    for (uint64_t i = 0; i < 0x57058000; i += 1024)
+      ws->write(zeroBytes, 1024);
+  }
+
+  PartitionBuilderGCN& pb = static_cast<PartitionBuilderGCN&>(*m_builder.m_partitions[0]);
+  return pb.mergeFromDirectory(static_cast<PartitionGCN*>(m_sourceDisc.getDataPartition()), dirIn)
+             ? EBuildResult::Success
+             : EBuildResult::Failed;
+}
+
+std::optional<uint64_t> DiscMergerGCN::CalculateTotalSizeRequired(DiscGCN& sourceDisc, std::string_view dirIn) {
+  std::optional<uint64_t> sz =
+      DiscBuilderBase::PartitionBuilderBase::CalculateTotalSizeMerge(sourceDisc.getDataPartition(), dirIn);
+  if (!sz)
+    return std::nullopt;
+  *sz += 0x30000;
+  if (sz > 0x57058000) {
+    spdlog::error("disc capacity exceeded [{} / {}]", *sz, 0x57058000);
+    return std::nullopt;
+  }
+  return sz;
+}
+
+} // namespace nod

lib/DiscIOISO.cpp

@@ -1,69 +1,63 @@
-#include <stdio.h>
-#include "nod/Util.hpp"
 #include "nod/IDiscIO.hpp"
 #include "nod/IFileIO.hpp"
 
-namespace nod
-{
+#include "Util.hpp"
+
+namespace nod {
+
+class DiscIOISO : public IDiscIO {
+  std::unique_ptr<IFileIO> m_fio;
 
-class DiscIOISO : public IDiscIO
-{
-    std::unique_ptr<IFileIO> m_fio;
 public:
-    DiscIOISO(const SystemString& fpin)
-    : m_fio(NewFileIO(fpin)) {}
+  DiscIOISO(std::string_view fpin) : m_fio(NewFileIO(fpin)) {}
 
-    class ReadStream : public IReadStream
-    {
-        friend class DiscIOISO;
-        std::unique_ptr<IFileIO::IReadStream> fp;
-        ReadStream(std::unique_ptr<IFileIO::IReadStream>&& fpin, bool& err)
-        : fp(std::move(fpin)) { if (!fp) err = true; }
-    public:
-        uint64_t read(void* buf, uint64_t length)
-        {return fp->read(buf, length);}
-        uint64_t position() const
-        {return fp->position();}
-        void seek(int64_t offset, int whence)
-        {fp->seek(offset, whence);}
-    };
-
-    std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IReadStream>(new ReadStream(m_fio->beginReadStream(offset), Err));
-        if (Err)
-            return {};
-        return ret;
+  class ReadStream : public IReadStream {
+    friend class DiscIOISO;
+    std::unique_ptr<IFileIO::IReadStream> fp;
+    ReadStream(std::unique_ptr<IFileIO::IReadStream>&& fpin, bool& err) : fp(std::move(fpin)) {
+      if (!fp)
+        err = true;
     }
 
-    class WriteStream : public IWriteStream
-    {
-        friend class DiscIOISO;
-        std::unique_ptr<IFileIO::IWriteStream> fp;
-        WriteStream(std::unique_ptr<IFileIO::IWriteStream>&& fpin, bool& err)
-        : fp(std::move(fpin)) { if (!fp) err = true; }
-    public:
-        uint64_t write(const void* buf, uint64_t length)
-        {
-            return fp->write(buf, length);
-        }
-    };
+  public:
+    uint64_t read(void* buf, uint64_t length) override { return fp->read(buf, length); }
+    uint64_t position() const override { return fp->position(); }
+    void seek(int64_t offset, int whence) override { fp->seek(offset, whence); }
+  };
 
-    std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IWriteStream>(new WriteStream(m_fio->beginWriteStream(offset), Err));
-        if (Err)
-            return {};
-        return ret;
+  std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::unique_ptr<IReadStream>(new ReadStream(m_fio->beginReadStream(offset), err));
+
+    if (err)
+      return {};
+
+    return ret;
+  }
+
+  class WriteStream : public IWriteStream {
+    friend class DiscIOISO;
+    std::unique_ptr<IFileIO::IWriteStream> fp;
+    WriteStream(std::unique_ptr<IFileIO::IWriteStream>&& fpin, bool& err) : fp(std::move(fpin)) {
+      if (!fp)
+        err = true;
     }
+
+  public:
+    uint64_t write(const void* buf, uint64_t length) override { return fp->write(buf, length); }
+  };
+
+  std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::unique_ptr<IWriteStream>(new WriteStream(m_fio->beginWriteStream(offset), err));
+
+    if (err)
+      return {};
+
+    return ret;
+  }
 };
 
-std::unique_ptr<IDiscIO> NewDiscIOISO(const SystemChar* path)
-{
-    return std::unique_ptr<IDiscIO>(new DiscIOISO(path));
-}
-
-}
+std::unique_ptr<IDiscIO> NewDiscIOISO(std::string_view path) { return std::make_unique<DiscIOISO>(path); }
 
+} // namespace nod

lib/DiscIONFS.cpp

@@ -0,0 +1,272 @@
+#include "nod/IDiscIO.hpp"
+#include "nod/IFileIO.hpp"
+#include "nod/aes.hpp"
+#include "nod/Endian.hpp"
+#include "Util.hpp"
+
+#include <spdlog/spdlog.h>
+
+namespace nod {
+
+/*
+ * NFS is the image format used to distribute Wii VC games for the Wii U.
+ * It is an LBA format similar to WBFS but adds its own encryption layer.
+ * It logically stores a standard Wii disc image with partitions.
+ */
+
+class DiscIONFS : public IDiscIO {
+  std::vector<std::unique_ptr<IFileIO>> files;
+
+  struct NFSHead {
+    uint32_t magic; // EGGS
+    uint32_t version;
+    uint32_t unknown[2]; // Signature, UUID?
+    uint32_t lbaRangeCount;
+    struct {
+      uint32_t startBlock;
+      uint32_t numBlocks;
+    } lbaRanges[61];
+    uint32_t endMagic; // SGGE
+  } nfsHead;
+
+  uint8_t key[16];
+
+  uint32_t calculateNumFiles() const {
+    uint32_t totalBlockCount = 0;
+    for (uint32_t i = 0; i < nfsHead.lbaRangeCount; ++i)
+      totalBlockCount += nfsHead.lbaRanges[i].numBlocks;
+    return (uint64_t(totalBlockCount) * uint64_t(0x8000) + (uint64_t(0x200) + uint64_t(0xF9FFFFF))) /
+           uint64_t(0xFA00000);
+  }
+
+  struct FBO {
+    uint32_t file, block, lblock, offset;
+  };
+
+  FBO logicalToFBO(uint64_t offset) const {
+    auto blockAndRemBytes = nod::div(offset, uint64_t(0x8000)); /* 32768 bytes per block */
+    uint32_t block = UINT32_MAX;
+    for (uint32_t i = 0, physicalBlock = 0; i < nfsHead.lbaRangeCount; ++i) {
+      const auto& range = nfsHead.lbaRanges[i];
+      if (blockAndRemBytes.quot >= range.startBlock && blockAndRemBytes.quot - range.startBlock < range.numBlocks) {
+        block = physicalBlock + (blockAndRemBytes.quot - range.startBlock);
+        break;
+      }
+      physicalBlock += range.numBlocks;
+    }
+    /* This offset has no physical mapping, read zeroes */
+    if (block == UINT32_MAX)
+      return {UINT32_MAX, UINT32_MAX, UINT32_MAX, UINT32_MAX};
+    auto fileAndRemBlocks = nod::div(block, uint32_t(8000)); /* 8000 blocks per file */
+    return {uint32_t(fileAndRemBlocks.quot), uint32_t(fileAndRemBlocks.rem), uint32_t(blockAndRemBytes.quot),
+            uint32_t(blockAndRemBytes.rem)};
+  }
+
+public:
+  DiscIONFS(std::string_view fpin, bool& err) {
+    /* Validate file path format */
+    using SignedSize = std::make_signed<std::string::size_type>::type;
+    const auto dotPos = SignedSize(fpin.rfind('.'));
+    const auto slashPos = SignedSize(fpin.find_last_of("/\\"));
+    if (fpin.size() <= 4 || dotPos == -1 || dotPos <= slashPos || fpin.compare(slashPos + 1, 4, "hif_") ||
+        fpin.compare(dotPos, fpin.size() - dotPos, ".nfs")) {
+      spdlog::error("'{}' must begin with 'hif_' and end with '.nfs' to be accepted as an NFS image", fpin);
+      err = true;
+      return;
+    }
+
+    /* Load key file */
+    const std::string dir(fpin.begin(), fpin.begin() + slashPos + 1);
+    auto keyFile = NewFileIO(dir + "../code/htk.bin")->beginReadStream();
+    if (!keyFile)
+      keyFile = NewFileIO(dir + "htk.bin")->beginReadStream();
+    if (!keyFile) {
+      spdlog::error("Unable to open '{}../code/htk.bin' or '{}htk.bin'", dir, dir);
+      err = true;
+      return;
+    }
+    if (keyFile->read(key, 16) != 16) {
+      spdlog::error("Unable to read from '{}../code/htk.bin' or '{}htk.bin'", dir, dir);
+      err = true;
+      return;
+    }
+
+    /* Load header from first file */
+    const std::string firstPath = fmt::format("{}hif_{:06}.nfs", dir, 0);
+    files.push_back(NewFileIO(firstPath));
+    auto rs = files.back()->beginReadStream();
+    if (!rs) {
+      spdlog::error("'{}' does not exist", firstPath);
+      err = true;
+      return;
+    }
+    if (rs->read(&nfsHead, 0x200) != 0x200) {
+      spdlog::error("Unable to read header from '{}'", firstPath);
+      err = true;
+      return;
+    }
+    if (std::memcmp(&nfsHead.magic, "EGGS", 4)) {
+      spdlog::error("Invalid magic in '{}'", firstPath);
+      err = true;
+      return;
+    }
+    nfsHead.lbaRangeCount = SBig(nfsHead.lbaRangeCount);
+    for (uint32_t i = 0; i < nfsHead.lbaRangeCount; ++i) {
+      auto& range = nfsHead.lbaRanges[i];
+      range.startBlock = SBig(range.startBlock);
+      range.numBlocks = SBig(range.numBlocks);
+    }
+
+    /* Ensure remaining files exist */
+    const uint32_t numFiles = calculateNumFiles();
+    files.reserve(numFiles);
+    for (uint32_t i = 1; i < numFiles; ++i) {
+      std::string path = fmt::format("{}hif_{:06}.nfs", dir, i);
+      files.push_back(NewFileIO(path));
+      if (!files.back()->exists()) {
+        spdlog::error("'{}' does not exist", path);
+        err = true;
+        return;
+      }
+    }
+  }
+
+  class ReadStream : public IReadStream {
+    friend class DiscIONFS;
+    const DiscIONFS& m_parent;
+    std::unique_ptr<IReadStream> m_rs;
+    std::unique_ptr<IAES> m_aes;
+
+    /* Physical address - all UINT32_MAX indicates logical zero block */
+    DiscIONFS::FBO m_physAddr;
+
+    /* Logical address */
+    uint64_t m_offset;
+
+    /* Active file stream and its offset as set in the system.
+     * Block is typically one ahead of the presently decrypted block. */
+    uint32_t m_curFile = UINT32_MAX;
+    uint32_t m_curBlock = UINT32_MAX;
+
+    ReadStream(const DiscIONFS& parent, uint64_t offset, bool& err)
+    : m_parent(parent)
+    , m_aes(NewAES())
+    , m_physAddr({UINT32_MAX, UINT32_MAX, UINT32_MAX, UINT32_MAX})
+    , m_offset(offset) {
+      m_aes->setKey(m_parent.key);
+      setLogicalAddr(offset);
+    }
+
+    uint8_t m_encBuf[0x8000] = {};
+    uint8_t m_decBuf[0x8000] = {};
+
+    void setCurFile(uint32_t curFile) {
+      if (curFile >= m_parent.files.size()) {
+        spdlog::error("Out of bounds NFS file access");
+        return;
+      }
+      m_curFile = curFile;
+      m_curBlock = UINT32_MAX;
+      m_rs = m_parent.files[m_curFile]->beginReadStream();
+    }
+
+    void setCurBlock(uint32_t curBlock) {
+      m_curBlock = curBlock;
+      m_rs->seek(m_curBlock * 0x8000 + 0x200);
+    }
+
+    void setPhysicalAddr(DiscIONFS::FBO physAddr) {
+      /* If we're just changing the offset, nothing else needs to be done */
+      if (m_physAddr.file == physAddr.file && m_physAddr.block == physAddr.block) {
+        m_physAddr.offset = physAddr.offset;
+        return;
+      }
+      m_physAddr = physAddr;
+
+      /* Set logical zero block */
+      if (m_physAddr.file == UINT32_MAX) {
+        memset(m_decBuf, 0, 0x8000);
+        return;
+      }
+
+      /* Make necessary file and block current with system */
+      if (m_physAddr.file != m_curFile)
+        setCurFile(m_physAddr.file);
+      if (m_physAddr.block != m_curBlock)
+        setCurBlock(m_physAddr.block);
+
+      /* Read block, handling 0x200 overlap case */
+      if (m_physAddr.block == 7999) {
+        m_rs->read(m_encBuf, 0x7E00);
+        setCurFile(m_curFile + 1);
+        m_rs->read(m_encBuf + 0x7E00, 0x200);
+        m_curBlock = 0;
+      } else {
+        m_rs->read(m_encBuf, 0x8000);
+        ++m_curBlock;
+      }
+
+      /* Decrypt */
+      const uint32_t ivBuf[] = {0, 0, 0, SBig(m_physAddr.lblock)};
+      m_aes->decrypt((const uint8_t*)ivBuf, m_encBuf, m_decBuf, 0x8000);
+    }
+
+    void setLogicalAddr(uint64_t addr) { setPhysicalAddr(m_parent.logicalToFBO(m_offset)); }
+
+  public:
+    uint64_t read(void* buf, uint64_t length) override {
+      uint64_t rem = length;
+      uint8_t* dst = (uint8_t*)buf;
+
+      /* Perform reads on block boundaries */
+      while (rem) {
+        uint64_t readSize = rem;
+        uint32_t blockOffset = (m_physAddr.offset == UINT32_MAX) ? 0 : m_physAddr.offset;
+        if (readSize + blockOffset > 0x8000)
+          readSize = 0x8000 - blockOffset;
+
+        memmove(dst, m_decBuf + blockOffset, readSize);
+        dst += readSize;
+        rem -= readSize;
+        m_offset += readSize;
+        setLogicalAddr(m_offset);
+      }
+
+      return dst - (uint8_t*)buf;
+    }
+    uint64_t position() const override { return m_offset; }
+    void seek(int64_t offset, int whence) override {
+      if (whence == SEEK_SET)
+        m_offset = offset;
+      else if (whence == SEEK_CUR)
+        m_offset += offset;
+      else
+        return;
+      setLogicalAddr(m_offset);
+    }
+  };
+
+  std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::unique_ptr<IReadStream>(new ReadStream(*this, offset, err));
+
+    if (err)
+      return {};
+
+    return ret;
+  }
+
+  std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const override { return {}; }
+
+  bool hasWiiCrypto() const override { return false; }
+};
+
+std::unique_ptr<IDiscIO> NewDiscIONFS(std::string_view path) {
+  bool err = false;
+  auto ret = std::make_unique<DiscIONFS>(path, err);
+  if (err)
+    return {};
+  return ret;
+}
+
+} // namespace nod

lib/DiscIOWBFS.cpp

@@ -1,305 +1,281 @@
-#include <stdio.h>
-#include <inttypes.h>
-#include "nod/Util.hpp"
+#include <cinttypes>
+#include <cstdint>
+#include <cstring>
+#include <memory>
+
 #include "nod/IDiscIO.hpp"
 #include "nod/IFileIO.hpp"
+#include "nod/Endian.hpp"
+#include "Util.hpp"
 
-namespace nod
-{
+#include <spdlog/spdlog.h>
 
-#define ALIGN_LBA(x) (((x)+p->hd_sec_sz-1)&(~(p->hd_sec_sz-1)))
+namespace nod {
 
-static uint8_t size_to_shift(uint32_t size)
-{
-    uint8_t ret = 0;
-    while (size)
-    {
-        ret++;
-        size>>=1;
-    }
-    return ret-1;
+#define ALIGN_LBA(x) (((x) + p->hd_sec_sz - 1) & (~(p->hd_sec_sz - 1)))
+
+static uint8_t size_to_shift(uint32_t size) {
+  uint8_t ret = 0;
+  while (size) {
+    ret++;
+    size >>= 1;
+  }
+  return ret - 1;
 }
 
-class DiscIOWBFS : public IDiscIO
-{
-    SystemString filepath;
+class DiscIOWBFS : public IDiscIO {
+  std::unique_ptr<IFileIO> m_fio;
 
-    struct WBFSHead
-    {
-        uint32_t magic;
-        // parameters copied in the partition for easy dumping, and bug reports
-        uint32_t n_hd_sec;	       // total number of hd_sec in this partition
-        uint8_t  hd_sec_sz_s;       // sector size in this partition
-        uint8_t  wbfs_sec_sz_s;     // size of a wbfs sec
-        uint8_t  padding3[2];
-        uint8_t  disc_table[0];	// size depends on hd sector size
-    };
-    std::unique_ptr<uint8_t[]> wbfsHead;
+  struct WBFSHead {
+    uint32_t magic;
+    // parameters copied in the partition for easy dumping, and bug reports
+    uint32_t n_hd_sec;     // total number of hd_sec in this partition
+    uint8_t hd_sec_sz_s;   // sector size in this partition
+    uint8_t wbfs_sec_sz_s; // size of a wbfs sec
+    uint8_t padding3[2];
+    uint8_t disc_table[0]; // size depends on hd sector size
+  };
+  std::unique_ptr<uint8_t[]> wbfsHead;
 
-    struct WBFSDiscInfo
-    {
-        uint8_t disc_header_copy[0x100];
-        uint16_t wlba_table[0];
-    };
-    std::unique_ptr<uint8_t[]> wbfsDiscInfo;
+  struct WBFSDiscInfo {
+    uint8_t disc_header_copy[0x100];
+    uint16_t wlba_table[0];
+  };
+  std::unique_ptr<uint8_t[]> wbfsDiscInfo;
 
-    struct WBFS
-    {
-        /* hdsectors, the size of the sector provided by the hosting hard drive */
-        uint32_t hd_sec_sz;
-        uint8_t  hd_sec_sz_s; // the power of two of the last number
-        uint32_t n_hd_sec;	 // the number of hd sector in the wbfs partition
+  struct WBFS {
+    /* hdsectors, the size of the sector provided by the hosting hard drive */
+    uint32_t hd_sec_sz;
+    uint8_t hd_sec_sz_s; // the power of two of the last number
+    uint32_t n_hd_sec;   // the number of hd sector in the wbfs partition
 
-        /* standard wii sector (0x8000 bytes) */
-        uint32_t wii_sec_sz;
-        uint8_t  wii_sec_sz_s;
-        uint32_t n_wii_sec;
-        uint32_t n_wii_sec_per_disc;
+    /* standard wii sector (0x8000 bytes) */
+    uint32_t wii_sec_sz;
+    uint8_t wii_sec_sz_s;
+    uint32_t n_wii_sec;
+    uint32_t n_wii_sec_per_disc;
 
-        /* The size of a wbfs sector */
-        uint32_t wbfs_sec_sz;
-        uint32_t wbfs_sec_sz_s;
-        uint16_t n_wbfs_sec;   // this must fit in 16 bit!
-        uint16_t n_wbfs_sec_per_disc;   // size of the lookup table
+    /* The size of a wbfs sector */
+    uint32_t wbfs_sec_sz;
+    uint32_t wbfs_sec_sz_s;
+    uint16_t n_wbfs_sec;          // this must fit in 16 bit!
+    uint16_t n_wbfs_sec_per_disc; // size of the lookup table
 
-        uint32_t part_lba;
+    uint32_t part_lba;
 
-        uint16_t max_disc;
-        uint32_t freeblks_lba;
-        uint32_t *freeblks;
-        uint16_t disc_info_sz;
+    uint16_t max_disc;
+    uint32_t freeblks_lba;
+    uint32_t* freeblks;
+    uint16_t disc_info_sz;
 
-        uint32_t n_disc_open;
+    uint32_t n_disc_open;
 
-    } wbfs;
+  } wbfs;
 
-    static int _wbfsReadSector(IFileIO::IReadStream& rs, uint32_t lba, uint32_t count, void* buf)
-    {
-        uint64_t off = lba;
-        off*=512ULL;
-        rs.seek(off, SEEK_SET);
-        if (rs.read(buf, count*512ULL) != count*512ULL)
-        {
-            LogModule.report(logvisor::Error, "error reading disc");
-            return 1;
-        }
-        return 0;
+  static int _wbfsReadSector(IFileIO::IReadStream& rs, uint32_t lba, uint32_t count, void* buf) {
+    uint64_t off = lba;
+    off *= 512ULL;
+    rs.seek(off, SEEK_SET);
+    if (rs.read(buf, count * 512ULL) != count * 512ULL) {
+      spdlog::error("error reading disc");
+      return 1;
     }
+    return 0;
+  }
 
 public:
-    DiscIOWBFS(const SystemString& fpin)
-    : filepath(fpin)
-    {
-        /* Temporary file handle to read LBA table */
-        std::unique_ptr<IFileIO> fio = NewFileIO(filepath);
-        std::unique_ptr<IFileIO::IReadStream> rs = fio->beginReadStream();
-        if (!rs)
-            return;
+  DiscIOWBFS(std::string_view fpin) : m_fio(NewFileIO(fpin)) {
+    /* Temporary file handle to read LBA table */
+    std::unique_ptr<IFileIO::IReadStream> rs = m_fio->beginReadStream();
+    if (!rs)
+      return;
 
-        WBFS* p = &wbfs;
-        WBFSHead tmpHead;
-        if (rs->read(&tmpHead, sizeof(tmpHead)) != sizeof(tmpHead)) {
-            LogModule.report(logvisor::Error, "unable to read WBFS head");
-            return;
-        }
-        unsigned hd_sector_size = 1 << tmpHead.hd_sec_sz_s;
-        unsigned num_hd_sector = SBig(tmpHead.n_hd_sec);
+    WBFS* p = &wbfs;
+    WBFSHead tmpHead;
+    if (rs->read(&tmpHead, sizeof(tmpHead)) != sizeof(tmpHead)) {
+      spdlog::error("unable to read WBFS head");
+      return;
+    }
+    unsigned hd_sector_size = 1 << tmpHead.hd_sec_sz_s;
+    unsigned num_hd_sector = SBig(tmpHead.n_hd_sec);
 
-        wbfsHead.reset(new uint8_t[hd_sector_size]);
-        WBFSHead* head = (WBFSHead*)wbfsHead.get();
-        rs->seek(0, SEEK_SET);
-        if (rs->read(head, hd_sector_size) != hd_sector_size) {
-            LogModule.report(logvisor::Error, "unable to read WBFS head");
-            return;
-        }
-
-        //constants, but put here for consistancy
-        p->wii_sec_sz = 0x8000;
-        p->wii_sec_sz_s = size_to_shift(0x8000);
-        p->n_wii_sec = (num_hd_sector/0x8000)*hd_sector_size;
-        p->n_wii_sec_per_disc = 143432*2;//support for double layers discs..
-        p->part_lba = 0;
-        if (_wbfsReadSector(*rs, p->part_lba, 1, head))
-            return;
-        if (hd_sector_size && head->hd_sec_sz_s !=  size_to_shift(hd_sector_size)) {
-            LogModule.report(logvisor::Error, "hd sector size doesn't match");
-            return;
-        }
-        if (num_hd_sector && head->n_hd_sec != SBig(num_hd_sector)) {
-            LogModule.report(logvisor::Error, "hd num sector doesn't match");
-            return;
-        }
-        p->hd_sec_sz = 1<<head->hd_sec_sz_s;
-        p->hd_sec_sz_s = head->hd_sec_sz_s;
-        p->n_hd_sec = SBig(head->n_hd_sec);
-
-        p->n_wii_sec = (p->n_hd_sec/p->wii_sec_sz)*(p->hd_sec_sz);
-
-        p->wbfs_sec_sz_s = head->wbfs_sec_sz_s;
-        p->wbfs_sec_sz = 1<<p->wbfs_sec_sz_s;
-        p->n_wbfs_sec = p->n_wii_sec >> (p->wbfs_sec_sz_s - p->wii_sec_sz_s);
-        p->n_wbfs_sec_per_disc = p->n_wii_sec_per_disc >> (p->wbfs_sec_sz_s - p->wii_sec_sz_s);
-        p->disc_info_sz = ALIGN_LBA(uint16_t(sizeof(WBFSDiscInfo)) + p->n_wbfs_sec_per_disc*2);
-
-        p->freeblks_lba = (p->wbfs_sec_sz - p->n_wbfs_sec/8)>>p->hd_sec_sz_s;
-
-        p->freeblks = 0; // will alloc and read only if needed
-        p->max_disc = (p->freeblks_lba-1)/(p->disc_info_sz>>p->hd_sec_sz_s);
-        if(p->max_disc > p->hd_sec_sz - sizeof(WBFSHead))
-            p->max_disc = p->hd_sec_sz - sizeof(WBFSHead);
-
-        p->n_disc_open = 0;
-
-        int disc_info_sz_lba = p->disc_info_sz>>p->hd_sec_sz_s;
-        if (head->disc_table[0])
-        {
-            wbfsDiscInfo.reset(new uint8_t[p->disc_info_sz]);
-            if (!wbfsDiscInfo) {
-                LogModule.report(logvisor::Error, "allocating memory");
-                return;
-            }
-            if (_wbfsReadSector(*rs, p->part_lba+1, disc_info_sz_lba, wbfsDiscInfo.get()))
-                return;
-            p->n_disc_open++;
-            //for(i=0;i<p->n_wbfs_sec_per_disc;i++)
-            //    printf("%d,",wbfs_ntohs(d->header->wlba_table[i]));
-        }
+    wbfsHead.reset(new uint8_t[hd_sector_size]);
+    WBFSHead* head = (WBFSHead*)wbfsHead.get();
+    rs->seek(0, SEEK_SET);
+    if (rs->read(head, hd_sector_size) != hd_sector_size) {
+      spdlog::error("unable to read WBFS head");
+      return;
     }
 
-    class ReadStream : public IReadStream
-    {
-        friend class DiscIOWBFS;
-        const DiscIOWBFS& m_parent;
-        std::unique_ptr<IFileIO::IReadStream> fp;
-        uint64_t m_offset;
-        std::unique_ptr<uint8_t[]> m_tmpBuffer;
+    // constants, but put here for consistancy
+    p->wii_sec_sz = 0x8000;
+    p->wii_sec_sz_s = size_to_shift(0x8000);
+    p->n_wii_sec = (num_hd_sector / 0x8000) * hd_sector_size;
+    p->n_wii_sec_per_disc = 143432 * 2; // support for double layers discs..
+    p->part_lba = 0;
+    if (_wbfsReadSector(*rs, p->part_lba, 1, head))
+      return;
+    if (hd_sector_size && head->hd_sec_sz_s != size_to_shift(hd_sector_size)) {
+      spdlog::error("hd sector size doesn't match");
+      return;
+    }
+    if (num_hd_sector && head->n_hd_sec != SBig(num_hd_sector)) {
+      spdlog::error("hd num sector doesn't match");
+      return;
+    }
+    p->hd_sec_sz = 1 << head->hd_sec_sz_s;
+    p->hd_sec_sz_s = head->hd_sec_sz_s;
+    p->n_hd_sec = SBig(head->n_hd_sec);
 
-        ReadStream(const DiscIOWBFS& parent, std::unique_ptr<IFileIO::IReadStream>&& fpin, uint64_t offset, bool& err)
-        : m_parent(parent),
-          fp(std::move(fpin)),
-          m_offset(offset),
-          m_tmpBuffer(new uint8_t[parent.wbfs.hd_sec_sz]) { if (!fp) err = true; }
+    p->n_wii_sec = (p->n_hd_sec / p->wii_sec_sz) * (p->hd_sec_sz);
 
-        int wbfsReadSector(uint32_t lba, uint32_t count, void* buf)
-        {return DiscIOWBFS::_wbfsReadSector(*fp, lba, count, buf);}
+    p->wbfs_sec_sz_s = head->wbfs_sec_sz_s;
+    p->wbfs_sec_sz = 1 << p->wbfs_sec_sz_s;
+    p->n_wbfs_sec = p->n_wii_sec >> (p->wbfs_sec_sz_s - p->wii_sec_sz_s);
+    p->n_wbfs_sec_per_disc = p->n_wii_sec_per_disc >> (p->wbfs_sec_sz_s - p->wii_sec_sz_s);
+    p->disc_info_sz = ALIGN_LBA(uint16_t(sizeof(WBFSDiscInfo)) + p->n_wbfs_sec_per_disc * 2);
 
-        int wbfsDiscRead(uint32_t offset, uint8_t *data, uint64_t len)
-        {
-            const WBFS* p = &m_parent.wbfs;
-            const WBFSDiscInfo* d = (WBFSDiscInfo*)m_parent.wbfsDiscInfo.get();
-            uint16_t wlba = offset>>(p->wbfs_sec_sz_s-2);
-            uint32_t iwlba_shift = p->wbfs_sec_sz_s - p->hd_sec_sz_s;
-            uint32_t lba_mask = (p->wbfs_sec_sz-1)>>(p->hd_sec_sz_s);
-            uint64_t lba = (offset>>(p->hd_sec_sz_s-2))&lba_mask;
-            uint64_t off = offset&((p->hd_sec_sz>>2)-1);
-            uint16_t iwlba = SBig(d->wlba_table[wlba]);
-            uint64_t len_copied;
-            int err = 0;
-            uint8_t  *ptr = data;
-            if (!iwlba)
-                return 1;
-            if (off)
-            {
-                off*=4;
-                err = wbfsReadSector(p->part_lba + (iwlba<<iwlba_shift) + lba, 1, m_tmpBuffer.get());
-                if (err)
-                    return err;
-                len_copied = p->hd_sec_sz - off;
-                if (len < len_copied)
-                    len_copied = len;
-                memcpy(ptr, m_tmpBuffer.get() + off, len_copied);
-                len -= len_copied;
-                ptr += len_copied;
-                lba++;
-                if (lba>lba_mask && len)
-                {
-                    lba=0;
-                    iwlba = SBig(d->wlba_table[++wlba]);
-                    if (!iwlba)
-                        return 1;
-                }
-            }
-            while (len>=p->hd_sec_sz)
-            {
-                uint32_t nlb = len>>(p->hd_sec_sz_s);
+    p->freeblks_lba = (p->wbfs_sec_sz - p->n_wbfs_sec / 8) >> p->hd_sec_sz_s;
 
-                if (lba + nlb > p->wbfs_sec_sz) // dont cross wbfs sectors..
-                    nlb = p->wbfs_sec_sz-lba;
-                err = wbfsReadSector(p->part_lba + (iwlba<<iwlba_shift) + lba, nlb, ptr);
-                if (err)
-                    return err;
-                len -= nlb<<p->hd_sec_sz_s;
-                ptr += nlb<<p->hd_sec_sz_s;
-                lba += nlb;
-                if (lba>lba_mask && len)
-                {
-                    lba = 0;
-                    iwlba = SBig(d->wlba_table[++wlba]);
-                    if (!iwlba)
-                        return 1;
-                }
-            }
-            if (len)
-            {
-                err = wbfsReadSector(p->part_lba + (iwlba<<iwlba_shift) + lba, 1, m_tmpBuffer.get());
-                if (err)
-                    return err;
-                memcpy(ptr, m_tmpBuffer.get(), len);
-            }
-            return 0;
-        }
+    p->freeblks = 0; // will alloc and read only if needed
+    p->max_disc = (p->freeblks_lba - 1) / (p->disc_info_sz >> p->hd_sec_sz_s);
+    if (p->max_disc > p->hd_sec_sz - sizeof(WBFSHead))
+      p->max_disc = p->hd_sec_sz - sizeof(WBFSHead);
 
-    public:
-        uint64_t read(void* buf, uint64_t length)
-        {
-            uint8_t extra[4];
-            uint64_t rem_offset = m_offset % 4;
-            if (rem_offset)
-            {
-                uint64_t rem_rem = 4 - rem_offset;
-                if (wbfsDiscRead((uint32_t)(m_offset / 4), extra, 4))
-                    return 0;
-                memcpy(buf, extra + rem_offset, rem_rem);
-                if (wbfsDiscRead((uint32_t)(m_offset / 4 + 1), (uint8_t*)buf + rem_rem, length - rem_rem))
-                    return 0;
-            }
-            else
-            {
-                if (wbfsDiscRead((uint32_t)(m_offset / 4), (uint8_t*)buf, length))
-                    return 0;
-            }
-            m_offset += length;
-            return length;
-        }
-        uint64_t position() const {return m_offset;}
-        void seek(int64_t offset, int whence)
-        {
-            if (whence == SEEK_SET)
-                m_offset = offset;
-            else if (whence == SEEK_CUR)
-                m_offset += offset;
-        }
-    };
+    p->n_disc_open = 0;
 
-    std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IReadStream>(new ReadStream(*this, NewFileIO(filepath)->beginReadStream(), offset, Err));
-        if (Err)
-            return {};
-        return ret;
+    int disc_info_sz_lba = p->disc_info_sz >> p->hd_sec_sz_s;
+    if (head->disc_table[0]) {
+      wbfsDiscInfo.reset(new uint8_t[p->disc_info_sz]);
+      if (!wbfsDiscInfo) {
+        spdlog::error("allocating memory");
+        return;
+      }
+      if (_wbfsReadSector(*rs, p->part_lba + 1, disc_info_sz_lba, wbfsDiscInfo.get()))
+        return;
+      p->n_disc_open++;
+      // for(i=0;i<p->n_wbfs_sec_per_disc;i++)
+      //    printf("%d,",wbfs_ntohs(d->header->wlba_table[i]));
+    }
+  }
+
+  class ReadStream : public IReadStream {
+    friend class DiscIOWBFS;
+    const DiscIOWBFS& m_parent;
+    std::unique_ptr<IFileIO::IReadStream> fp;
+    uint64_t m_offset;
+    std::unique_ptr<uint8_t[]> m_tmpBuffer;
+
+    ReadStream(const DiscIOWBFS& parent, std::unique_ptr<IFileIO::IReadStream>&& fpin, uint64_t offset, bool& err)
+    : m_parent(parent), fp(std::move(fpin)), m_offset(offset), m_tmpBuffer(new uint8_t[parent.wbfs.hd_sec_sz]) {
+      if (!fp)
+        err = true;
     }
 
-    std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const
-    {
-        return std::unique_ptr<IWriteStream>();
+    int wbfsReadSector(uint32_t lba, uint32_t count, void* buf) {
+      return DiscIOWBFS::_wbfsReadSector(*fp, lba, count, buf);
     }
+
+    int wbfsDiscRead(uint32_t offset, uint8_t* data, uint64_t len) {
+      const WBFS* p = &m_parent.wbfs;
+      const WBFSDiscInfo* d = (WBFSDiscInfo*)m_parent.wbfsDiscInfo.get();
+      uint16_t wlba = offset >> (p->wbfs_sec_sz_s - 2);
+      uint32_t iwlba_shift = p->wbfs_sec_sz_s - p->hd_sec_sz_s;
+      uint32_t lba_mask = (p->wbfs_sec_sz - 1) >> (p->hd_sec_sz_s);
+      uint64_t lba = (offset >> (p->hd_sec_sz_s - 2)) & lba_mask;
+      uint64_t off = offset & ((p->hd_sec_sz >> 2) - 1);
+      uint16_t iwlba = SBig(d->wlba_table[wlba]);
+      uint64_t len_copied;
+      int err = 0;
+      uint8_t* ptr = data;
+      if (!iwlba)
+        return 1;
+      if (off) {
+        off *= 4;
+        err = wbfsReadSector(p->part_lba + (iwlba << iwlba_shift) + lba, 1, m_tmpBuffer.get());
+        if (err)
+          return err;
+        len_copied = p->hd_sec_sz - off;
+        if (len < len_copied)
+          len_copied = len;
+        memcpy(ptr, m_tmpBuffer.get() + off, len_copied);
+        len -= len_copied;
+        ptr += len_copied;
+        lba++;
+        if (lba > lba_mask && len) {
+          lba = 0;
+          iwlba = SBig(d->wlba_table[++wlba]);
+          if (!iwlba)
+            return 1;
+        }
+      }
+      while (len >= p->hd_sec_sz) {
+        uint32_t nlb = len >> (p->hd_sec_sz_s);
+
+        if (lba + nlb > p->wbfs_sec_sz) // dont cross wbfs sectors..
+          nlb = p->wbfs_sec_sz - lba;
+        err = wbfsReadSector(p->part_lba + (iwlba << iwlba_shift) + lba, nlb, ptr);
+        if (err)
+          return err;
+        len -= nlb << p->hd_sec_sz_s;
+        ptr += nlb << p->hd_sec_sz_s;
+        lba += nlb;
+        if (lba > lba_mask && len) {
+          lba = 0;
+          iwlba = SBig(d->wlba_table[++wlba]);
+          if (!iwlba)
+            return 1;
+        }
+      }
+      if (len) {
+        err = wbfsReadSector(p->part_lba + (iwlba << iwlba_shift) + lba, 1, m_tmpBuffer.get());
+        if (err)
+          return err;
+        memcpy(ptr, m_tmpBuffer.get(), len);
+      }
+      return 0;
+    }
+
+  public:
+    uint64_t read(void* buf, uint64_t length) override {
+      uint8_t extra[4];
+      uint64_t rem_offset = m_offset % 4;
+      if (rem_offset) {
+        uint64_t rem_rem = 4 - rem_offset;
+        if (wbfsDiscRead((uint32_t)(m_offset / 4), extra, 4))
+          return 0;
+        memcpy(buf, extra + rem_offset, rem_rem);
+        if (wbfsDiscRead((uint32_t)(m_offset / 4 + 1), (uint8_t*)buf + rem_rem, length - rem_rem))
+          return 0;
+      } else {
+        if (wbfsDiscRead((uint32_t)(m_offset / 4), (uint8_t*)buf, length))
+          return 0;
+      }
+      m_offset += length;
+      return length;
+    }
+    uint64_t position() const override { return m_offset; }
+    void seek(int64_t offset, int whence) override {
+      if (whence == SEEK_SET)
+        m_offset = offset;
+      else if (whence == SEEK_CUR)
+        m_offset += offset;
+    }
+  };
+
+  std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::unique_ptr<IReadStream>(new ReadStream(*this, m_fio->beginReadStream(), offset, err));
+
+    if (err)
+      return {};
+
+    return ret;
+  }
+
+  std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const override { return {}; }
 };
 
-std::unique_ptr<IDiscIO> NewDiscIOWBFS(const SystemChar* path)
-{
-    return std::unique_ptr<IDiscIO>(new DiscIOWBFS(path));
-}
-
-}
+std::unique_ptr<IDiscIO> NewDiscIOWBFS(std::string_view path) { return std::make_unique<DiscIOWBFS>(path); }
 
+} // namespace nod

lib/FileIOFILE.cpp

@@ -1,190 +1,158 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include "nod/Util.hpp"
+#include <cinttypes>
+#include <cstdio>
+#include <cstdint>
+#include <cstdlib>
+
 #include "nod/IFileIO.hpp"
+#include "Util.hpp"
 
-namespace nod
-{
+#include <spdlog/spdlog.h>
+
+namespace nod {
+
+class FileIOFILE : public IFileIO {
+  std::string m_path;
+  int64_t m_maxWriteSize;
 
-class FileIOFILE : public IFileIO
-{
-    SystemString m_path;
-    int64_t m_maxWriteSize;
 public:
-    FileIOFILE(const SystemString& path, int64_t maxWriteSize)
-    : m_path(path), m_maxWriteSize(maxWriteSize) {}
-    FileIOFILE(const SystemChar* path, int64_t maxWriteSize)
-    : m_path(path), m_maxWriteSize(maxWriteSize) {}
+  FileIOFILE(std::string_view path, int64_t maxWriteSize) : m_path(path), m_maxWriteSize(maxWriteSize) {}
 
-    bool exists()
-    {
-        FILE* fp = fopen(m_path.c_str(), "rb");
-        if (!fp)
-            return false;
-        fclose(fp);
-        return true;
-    }
+  bool exists() override {
+    FILE* fp = Fopen(m_path.c_str(), "rb");
+    if (!fp)
+      return false;
+    fclose(fp);
+    return true;
+  }
 
-    uint64_t size()
-    {
-        FILE* fp = fopen(m_path.c_str(), "rb");
-        if (!fp)
-            return 0;
-        FSeek(fp, 0, SEEK_END);
-        uint64_t result = FTell(fp);
-        fclose(fp);
-        return result;
-    }
+  uint64_t size() override {
+    FILE* fp = Fopen(m_path.c_str(), "rb");
+    if (!fp)
+      return 0;
+    FSeek(fp, 0, SEEK_END);
+    uint64_t result = FTell(fp);
+    fclose(fp);
+    return result;
+  }
 
-    struct WriteStream : public IFileIO::IWriteStream
-    {
-        FILE* fp;
-        int64_t m_maxWriteSize;
-        WriteStream(const SystemString& path, int64_t maxWriteSize, bool& err)
-        : m_maxWriteSize(maxWriteSize)
-        {
-            fp = fopen(path.c_str(), "wb");
-            if (!fp)
-            {
-                LogModule.report(logvisor::Error, _S("unable to open '%s' for writing"), path.c_str());
-                err = true;
-            }
-        }
-        WriteStream(const SystemString& path, uint64_t offset, int64_t maxWriteSize, bool& err)
-        : m_maxWriteSize(maxWriteSize)
-        {
-            fp = fopen(path.c_str(), "ab");
-            if (!fp)
-                goto FailLoc;
-            fclose(fp);
-            fp = fopen(path.c_str(), "r+b");
-            if (!fp)
-                goto FailLoc;
-            FSeek(fp, offset, SEEK_SET);
-            return;
-        FailLoc:
-            LogModule.report(logvisor::Error, _S("unable to open '%s' for writing"), path.c_str());
-            err = true;
-        }
-        ~WriteStream()
-        {
-            fclose(fp);
-        }
-        uint64_t write(const void* buf, uint64_t length)
-        {
-            if (m_maxWriteSize >= 0)
-            {
-                if (FTell(fp) + length > m_maxWriteSize)
-                {
-                    LogModule.report(logvisor::Error, _S("write operation exceeds file's %" PRIi64 "-byte limit"), m_maxWriteSize);
-                    return 0;
-                }
-            }
-            return fwrite(buf, 1, length, fp);
-        }
-    };
-    std::unique_ptr<IWriteStream> beginWriteStream() const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IWriteStream>(new WriteStream(m_path, m_maxWriteSize, Err));
-        if (Err)
-            return {};
-        return ret;
+  struct WriteStream : public IFileIO::IWriteStream {
+    FILE* fp;
+    int64_t m_maxWriteSize;
+    WriteStream(std::string_view path, int64_t maxWriteSize, bool& err) : m_maxWriteSize(maxWriteSize) {
+      fp = Fopen(path.data(), "wb");
+      if (!fp) {
+        spdlog::error("unable to open '{}' for writing", path);
+        err = true;
+      }
     }
-    std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IWriteStream>(new WriteStream(m_path, offset, m_maxWriteSize, Err));
-        if (Err)
-            return {};
-        return ret;
+    WriteStream(std::string_view path, uint64_t offset, int64_t maxWriteSize, bool& err)
+    : m_maxWriteSize(maxWriteSize) {
+      fp = Fopen(path.data(), "ab");
+      if (!fp)
+        goto FailLoc;
+      fclose(fp);
+      fp = Fopen(path.data(), "r+b");
+      if (!fp)
+        goto FailLoc;
+      FSeek(fp, offset, SEEK_SET);
+      return;
+    FailLoc:
+      spdlog::error("unable to open '{}' for writing", path);
+      err = true;
     }
+    ~WriteStream() override { fclose(fp); }
+    uint64_t write(const void* buf, uint64_t length) override {
+      if (m_maxWriteSize >= 0) {
+        if (FTell(fp) + length > m_maxWriteSize) {
+          spdlog::error("write operation exceeds file's {}-byte limit", m_maxWriteSize);
+          return 0;
+        }
+      }
+      return fwrite(buf, 1, length, fp);
+    }
+  };
 
-    struct ReadStream : public IFileIO::IReadStream
-    {
-        FILE* fp;
-        ReadStream(const SystemString& path, bool& err)
-        {
-            fp = fopen(path.c_str(), "rb");
-            if (!fp)
-            {
-                err = true;
-                LogModule.report(logvisor::Error, _S("unable to open '%s' for reading"), path.c_str());
-            }
-        }
-        ReadStream(const SystemString& path, uint64_t offset, bool& err)
-        : ReadStream(path, err)
-        {
-            if (err)
-                return;
-            FSeek(fp, offset, SEEK_SET);
-        }
-        ~ReadStream()
-        {
-            fclose(fp);
-        }
-        void seek(int64_t offset, int whence)
-        {
-            FSeek(fp, offset, whence);
-        }
-        uint64_t position() const
-        {
-            return FTell(fp);
-        }
-        uint64_t read(void* buf, uint64_t length)
-        {
-            return fread(buf, 1, length, fp);
-        }
-        uint64_t copyToDisc(IPartWriteStream& discio, uint64_t length)
-        {
-            uint64_t written = 0;
-            uint8_t buf[0x7c00];
-            while (length)
-            {
-                uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
-                if (read(buf, thisSz) != thisSz)
-                {
-                    LogModule.report(logvisor::Error, "unable to read enough from file");
-                    return written;
-                }
-                if (discio.write(buf, thisSz) != thisSz)
-                {
-                    LogModule.report(logvisor::Error, "unable to write enough to disc");
-                    return written;
-                }
-                length -= thisSz;
-                written += thisSz;
-            }
-            return written;
-        }
-    };
-    std::unique_ptr<IReadStream> beginReadStream() const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IReadStream>(new ReadStream(m_path, Err));
-        if (Err)
-            return {};
-        return ret;
+  std::unique_ptr<IWriteStream> beginWriteStream() const override {
+    bool err = false;
+    auto ret = std::unique_ptr<IWriteStream>(new WriteStream(m_path, m_maxWriteSize, err));
+
+    if (err)
+      return {};
+
+    return ret;
+  }
+
+  std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::unique_ptr<IWriteStream>(new WriteStream(m_path, offset, m_maxWriteSize, err));
+
+    if (err)
+      return {};
+
+    return ret;
+  }
+
+  struct ReadStream : public IFileIO::IReadStream {
+    FILE* fp;
+    ReadStream(std::string_view path, bool& err) {
+      fp = Fopen(path.data(), "rb");
+      if (!fp) {
+        err = true;
+        spdlog::error("unable to open '{}' for reading", path);
+      }
     }
-    std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IReadStream>(new ReadStream(m_path, offset, Err));
-        if (Err)
-            return {};
-        return ret;
+    ReadStream(std::string_view path, uint64_t offset, bool& err) : ReadStream(path, err) {
+      if (err)
+        return;
+      FSeek(fp, offset, SEEK_SET);
     }
+    ~ReadStream() override { fclose(fp); }
+    void seek(int64_t offset, int whence) override { FSeek(fp, offset, whence); }
+    uint64_t position() const override { return FTell(fp); }
+    uint64_t read(void* buf, uint64_t length) override { return fread(buf, 1, length, fp); }
+    uint64_t copyToDisc(IPartWriteStream& discio, uint64_t length) override {
+      uint64_t written = 0;
+      uint8_t buf[0x7c00];
+      while (length) {
+        uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
+        if (read(buf, thisSz) != thisSz) {
+          spdlog::error("unable to read enough from file");
+          return written;
+        }
+        if (discio.write(buf, thisSz) != thisSz) {
+          spdlog::error("unable to write enough to disc");
+          return written;
+        }
+        length -= thisSz;
+        written += thisSz;
+      }
+      return written;
+    }
+  };
+
+  std::unique_ptr<IReadStream> beginReadStream() const override {
+    bool err = false;
+    auto ret = std::unique_ptr<IReadStream>(new ReadStream(m_path, err));
+
+    if (err)
+      return {};
+
+    return ret;
+  }
+
+  std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::unique_ptr<IReadStream>(new ReadStream(m_path, offset, err));
+
+    if (err)
+      return {};
+
+    return ret;
+  }
 };
 
-std::unique_ptr<IFileIO> NewFileIO(const SystemString& path, int64_t maxWriteSize)
-{
-    return std::unique_ptr<IFileIO>(new FileIOFILE(path, maxWriteSize));
+std::unique_ptr<IFileIO> NewFileIO(std::string_view path, int64_t maxWriteSize) {
+  return std::make_unique<FileIOFILE>(path, maxWriteSize);
 }
 
-std::unique_ptr<IFileIO> NewFileIO(const SystemChar* path, int64_t maxWriteSize)
-{
-    return std::unique_ptr<IFileIO>(new FileIOFILE(path, maxWriteSize));
-}
-
-}
+} // namespace nod

lib/FileIOWin32.cpp

@@ -1,212 +1,219 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include "nod/Util.hpp"
+#include <cstdint>
+#if _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <Windows.h>
+#endif
+
 #include "nod/IFileIO.hpp"
+#include "Util.hpp"
 
-namespace nod
-{
+#include <spdlog/spdlog.h>
+
+#include <nowide/convert.hpp>
+#include <nowide/stackstring.hpp>
+
+namespace nod {
+
+class FileIOWin32 : public IFileIO {
+  std::wstring m_wpath;
+  int64_t m_maxWriteSize;
 
-class FileIOWin32 : public IFileIO
-{
-    SystemString m_path;
-    int64_t m_maxWriteSize;
 public:
-    FileIOWin32(const SystemString& path, int64_t maxWriteSize)
-    : m_path(path), m_maxWriteSize(maxWriteSize) {}
-    FileIOWin32(const SystemChar* path, int64_t maxWriteSize)
-    : m_path(path), m_maxWriteSize(maxWriteSize) {}
+  FileIOWin32(std::string_view path, int64_t maxWriteSize)
+  : m_wpath(nowide::widen(path)), m_maxWriteSize(maxWriteSize) {}
 
-    bool exists()
-    {
-        HANDLE fp = CreateFileW(m_path.c_str(), GENERIC_READ, FILE_SHARE_READ,
-                                nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
-        if (fp == INVALID_HANDLE_VALUE)
-            return false;
-        CloseHandle(fp);
-        return true;
+  bool exists() override {
+#if !WINDOWS_STORE
+    HANDLE fp = CreateFileW(m_wpath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
+                            FILE_ATTRIBUTE_NORMAL, nullptr);
+#else
+    HANDLE fp = CreateFile2(m_path.get(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
+#endif
+    if (fp == INVALID_HANDLE_VALUE)
+      return false;
+    CloseHandle(fp);
+    return true;
+  }
+
+  uint64_t size() override {
+#if !WINDOWS_STORE
+    HANDLE fp = CreateFileW(m_wpath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING,
+                            FILE_ATTRIBUTE_NORMAL, nullptr);
+#else
+    HANDLE fp = CreateFile2(m_path.get(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
+#endif
+    if (fp == INVALID_HANDLE_VALUE)
+      return 0;
+    LARGE_INTEGER sz;
+    if (!GetFileSizeEx(fp, &sz)) {
+      CloseHandle(fp);
+      return 0;
+    }
+    CloseHandle(fp);
+    return sz.QuadPart;
+  }
+
+  struct WriteStream : public IFileIO::IWriteStream {
+    HANDLE fp;
+    int64_t m_maxWriteSize;
+    WriteStream(std::wstring_view wpath, int64_t maxWriteSize, bool& err) : m_maxWriteSize(maxWriteSize) {
+#if !WINDOWS_STORE
+      fp = CreateFileW(wpath.data(), GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
+                       nullptr);
+#else
+      fp = CreateFile2(wpath.data(), GENERIC_WRITE, FILE_SHARE_WRITE, CREATE_ALWAYS, nullptr);
+#endif
+      if (fp == INVALID_HANDLE_VALUE) {
+        const nowide::stackstring path(wpath.data(), wpath.data() + wpath.size());
+        spdlog::error("unable to open '{}' for writing", path.get());
+        err = true;
+      }
+    }
+    WriteStream(std::wstring_view wpath, uint64_t offset, int64_t maxWriteSize, bool& err)
+    : m_maxWriteSize(maxWriteSize) {
+#if !WINDOWS_STORE
+      fp = CreateFileW(wpath.data(), GENERIC_WRITE, FILE_SHARE_WRITE, nullptr, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL,
+                       nullptr);
+#else
+      fp = CreateFile2(wpath.data(), GENERIC_WRITE, FILE_SHARE_WRITE, OPEN_ALWAYS, nullptr);
+#endif
+      if (fp == INVALID_HANDLE_VALUE) {
+        const nowide::stackstring path(wpath.data(), wpath.data() + wpath.size());
+        spdlog::error("unable to open '{}' for writing", path.get());
+        err = true;
+        return;
+      }
+      LARGE_INTEGER lioffset;
+      lioffset.QuadPart = offset;
+      SetFilePointerEx(fp, lioffset, nullptr, FILE_BEGIN);
+    }
+    ~WriteStream() override { CloseHandle(fp); }
+    uint64_t write(const void* buf, uint64_t length) override {
+      if (m_maxWriteSize >= 0) {
+        LARGE_INTEGER li = {};
+        LARGE_INTEGER res;
+        SetFilePointerEx(fp, li, &res, FILE_CURRENT);
+        if (res.QuadPart + int64_t(length) > m_maxWriteSize) {
+          spdlog::error("write operation exceeds file's {}-byte limit", m_maxWriteSize);
+          return 0;
+        }
+      }
+
+      DWORD ret = 0;
+      WriteFile(fp, buf, length, &ret, nullptr);
+      return ret;
+    }
+  };
+  std::unique_ptr<IWriteStream> beginWriteStream() const override {
+    bool err = false;
+    auto ret = std::make_unique<WriteStream>(m_wpath, m_maxWriteSize, err);
+
+    if (err) {
+      return nullptr;
     }
 
-    uint64_t size()
-    {
-        HANDLE fp = CreateFileW(m_path.c_str(), GENERIC_READ, FILE_SHARE_READ,
-                                nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
-        if (fp == INVALID_HANDLE_VALUE)
-            return 0;
-        LARGE_INTEGER sz;
-        if (!GetFileSizeEx(fp, &sz))
-        {
-            CloseHandle(fp);
-            return 0;
-        }
-        CloseHandle(fp);
-        return sz.QuadPart;
+    return ret;
+  }
+  std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::make_unique<WriteStream>(m_wpath, offset, m_maxWriteSize, err);
+
+    if (err) {
+      return nullptr;
     }
 
-    struct WriteStream : public IFileIO::IWriteStream
-    {
-        HANDLE fp;
-        int64_t m_maxWriteSize;
-        WriteStream(const SystemString& path, int64_t maxWriteSize, bool& err)
-        : m_maxWriteSize(maxWriteSize)
-        {
-            fp = CreateFileW(path.c_str(), GENERIC_WRITE, FILE_SHARE_WRITE,
-                             nullptr, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
-            if (fp == INVALID_HANDLE_VALUE)
-            {
-                LogModule.report(logvisor::Error, _S("unable to open '%s' for writing"), path.c_str());
-                err = true;
-            }
-        }
-        WriteStream(const SystemString& path, uint64_t offset, int64_t maxWriteSize, bool& err)
-        : m_maxWriteSize(maxWriteSize)
-        {
-            fp = CreateFileW(path.c_str(), GENERIC_WRITE, FILE_SHARE_WRITE,
-                             nullptr, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, nullptr);
-            if (fp == INVALID_HANDLE_VALUE)
-            {
-                LogModule.report(logvisor::Error, _S("unable to open '%s' for writing"), path.c_str());
-                err = true;
-                return;
-            }
-            LARGE_INTEGER lioffset;
-            lioffset.QuadPart = offset;
-            SetFilePointerEx(fp, lioffset, nullptr, FILE_BEGIN);
-        }
-        ~WriteStream()
-        {
-            CloseHandle(fp);
-        }
-        uint64_t write(const void* buf, uint64_t length)
-        {
-            if (m_maxWriteSize >= 0)
-            {
-                LARGE_INTEGER li = {};
-                LARGE_INTEGER res;
-                SetFilePointerEx(fp, li, &res, FILE_CURRENT);
-                if (res.QuadPart + int64_t(length) > m_maxWriteSize)
-                {
-                    LogModule.report(logvisor::Error, _S("write operation exceeds file's %" PRIi64 "-byte limit"), m_maxWriteSize);
-                    return 0;
-                }
-            }
+    return ret;
+  }
 
-            DWORD ret = 0;
-            WriteFile(fp, buf, length, &ret, nullptr);
-            return ret;
-        }
-    };
-    std::unique_ptr<IWriteStream> beginWriteStream() const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IWriteStream>(new WriteStream(m_path, m_maxWriteSize, Err));
-        if (Err)
-            return {};
-        return ret;
+  struct ReadStream : public IFileIO::IReadStream {
+    HANDLE fp;
+    ReadStream(std::wstring_view wpath, bool& err) {
+#if !WINDOWS_STORE
+      fp = CreateFileW(wpath.data(), GENERIC_READ, FILE_SHARE_READ, nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL,
+                       nullptr);
+#else
+      fp = CreateFile2(wpath.data(), GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING, nullptr);
+#endif
+      if (fp == INVALID_HANDLE_VALUE) {
+        err = true;
+        const nowide::stackstring path(wpath.data(), wpath.data() + wpath.size());
+        spdlog::error("unable to open '{}' for reading", path.get());
+      }
     }
-    std::unique_ptr<IWriteStream> beginWriteStream(uint64_t offset) const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IWriteStream>(new WriteStream(m_path, offset, m_maxWriteSize, Err));
-        if (Err)
-            return {};
-        return ret;
+    ReadStream(std::wstring_view wpath, uint64_t offset, bool& err) : ReadStream(wpath, err) {
+      if (err)
+        return;
+      LARGE_INTEGER lioffset;
+      lioffset.QuadPart = offset;
+      SetFilePointerEx(fp, lioffset, nullptr, FILE_BEGIN);
+    }
+    ~ReadStream() override { CloseHandle(fp); }
+    void seek(int64_t offset, int whence) override {
+      LARGE_INTEGER li;
+      li.QuadPart = offset;
+      SetFilePointerEx(fp, li, nullptr, whence);
+    }
+    uint64_t position() const override {
+      LARGE_INTEGER li = {};
+      LARGE_INTEGER res;
+      SetFilePointerEx(fp, li, &res, FILE_CURRENT);
+      return res.QuadPart;
+    }
+    uint64_t read(void* buf, uint64_t length) override {
+      DWORD ret = 0;
+      ReadFile(fp, buf, length, &ret, nullptr);
+      return ret;
+    }
+    uint64_t copyToDisc(IPartWriteStream& discio, uint64_t length) override {
+      uint64_t written = 0;
+      uint8_t buf[0x7c00];
+      while (length) {
+        uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
+        if (read(buf, thisSz) != thisSz) {
+          spdlog::error("unable to read enough from file");
+          return written;
+        }
+        if (discio.write(buf, thisSz) != thisSz) {
+          spdlog::error("unable to write enough to disc");
+          return written;
+        }
+        length -= thisSz;
+        written += thisSz;
+      }
+      return written;
+    }
+  };
+
+  std::unique_ptr<IReadStream> beginReadStream() const override {
+    bool err = false;
+    auto ret = std::make_unique<ReadStream>(m_wpath, err);
+
+    if (err) {
+      return nullptr;
     }
 
-    struct ReadStream : public IFileIO::IReadStream
-    {
-        HANDLE fp;
-        ReadStream(const SystemString& path, bool& err)
-        {
-            fp = CreateFileW(path.c_str(), GENERIC_READ, FILE_SHARE_READ,
-                             nullptr, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, nullptr);
-            if (fp == INVALID_HANDLE_VALUE)
-            {
-                err = true;
-                LogModule.report(logvisor::Error, _S("unable to open '%s' for reading"), path.c_str());
-            }
-        }
-        ReadStream(const SystemString& path, uint64_t offset, bool& err)
-        : ReadStream(path, err)
-        {
-            if (err)
-                return;
-            LARGE_INTEGER lioffset;
-            lioffset.QuadPart = offset;
-            SetFilePointerEx(fp, lioffset, nullptr, FILE_BEGIN);
-        }
-        ~ReadStream()
-        {
-            CloseHandle(fp);
-        }
-        void seek(int64_t offset, int whence)
-        {
-            LARGE_INTEGER li;
-            li.QuadPart = offset;
-            SetFilePointerEx(fp, li, nullptr, whence);
-        }
-        uint64_t position() const
-        {
-            LARGE_INTEGER li = {};
-            LARGE_INTEGER res;
-            SetFilePointerEx(fp, li, &res, FILE_CURRENT);
-            return res.QuadPart;
-        }
-        uint64_t read(void* buf, uint64_t length)
-        {
-            DWORD ret = 0;
-            ReadFile(fp, buf, length, &ret, nullptr);
-            return ret;
-        }
-        uint64_t copyToDisc(IPartWriteStream& discio, uint64_t length)
-        {
-            uint64_t written = 0;
-            uint8_t buf[0x7c00];
-            while (length)
-            {
-                uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
-                if (read(buf, thisSz) != thisSz)
-                {
-                    LogModule.report(logvisor::Error, "unable to read enough from file");
-                    return written;
-                }
-                if (discio.write(buf, thisSz) != thisSz)
-                {
-                    LogModule.report(logvisor::Error, "unable to write enough to disc");
-                    return written;
-                }
-                length -= thisSz;
-                written += thisSz;
-            }
-            return written;
-        }
-    };
-    std::unique_ptr<IReadStream> beginReadStream() const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IReadStream>(new ReadStream(m_path, Err));
-        if (Err)
-            return {};
-        return ret;
-    }
-    std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const
-    {
-        bool Err = false;
-        auto ret = std::unique_ptr<IReadStream>(new ReadStream(m_path, offset, Err));
-        if (Err)
-            return {};
-        return ret;
+    return ret;
+  }
+
+  std::unique_ptr<IReadStream> beginReadStream(uint64_t offset) const override {
+    bool err = false;
+    auto ret = std::make_unique<ReadStream>(m_wpath, offset, err);
+
+    if (err) {
+      return nullptr;
     }
+
+    return ret;
+  }
 };
 
-std::unique_ptr<IFileIO> NewFileIO(const SystemString& path, int64_t maxWriteSize)
-{
-    return std::unique_ptr<IFileIO>(new FileIOWin32(path, maxWriteSize));
+std::unique_ptr<IFileIO> NewFileIO(std::string_view path, int64_t maxWriteSize) {
+  return std::make_unique<FileIOWin32>(path, maxWriteSize);
 }
 
-std::unique_ptr<IFileIO> NewFileIO(const SystemChar* path, int64_t maxWriteSize)
-{
-    return std::unique_ptr<IFileIO>(new FileIOWin32(path, maxWriteSize));
-}
-
-}
+} // namespace nod

lib/IFileIO.cpp

@@ -0,0 +1,48 @@
+#include "nod/IFileIO.hpp"
+#include "Util.hpp"
+#include <spdlog/spdlog.h>
+
+namespace nod {
+uint64_t IFileIO::IWriteStream::copyFromDisc(IPartReadStream& discio, uint64_t length) {
+  uint64_t read = 0;
+  uint8_t buf[0x7c00];
+  while (length) {
+    uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
+    uint64_t readSz = discio.read(buf, thisSz);
+    if (thisSz != readSz) {
+      spdlog::error("unable to read enough from disc");
+      return read;
+    }
+    if (write(buf, readSz) != readSz) {
+      spdlog::error("unable to write in file");
+      return read;
+    }
+    length -= thisSz;
+    read += thisSz;
+  }
+  return read;
+}
+
+uint64_t IFileIO::IWriteStream::copyFromDisc(IPartReadStream& discio, uint64_t length,
+                                             const std::function<void(float)>& prog) {
+  uint64_t read = 0;
+  uint8_t buf[0x7c00];
+  uint64_t total = length;
+  while (length) {
+    uint64_t thisSz = nod::min(uint64_t(0x7c00), length);
+    uint64_t readSz = discio.read(buf, thisSz);
+    if (thisSz != readSz) {
+      spdlog::error("unable to read enough from disc");
+      return read;
+    }
+    if (write(buf, readSz) != readSz) {
+      spdlog::error("unable to write in file");
+      return read;
+    }
+    length -= thisSz;
+    read += thisSz;
+    prog(read / float(total));
+  }
+  return read;
+}
+} // namespace nod

lib/Util.cpp

@@ -0,0 +1,71 @@
+#include "Util.hpp"
+
+#include <spdlog/spdlog.h>
+
+#if _WIN32
+#ifndef WIN32_LEAN_AND_MEAN
+#define WIN32_LEAN_AND_MEAN 1
+#endif
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <Windows.h>
+#endif
+
+namespace nod {
+FILE* Fopen(const char* path, const char* mode, FileLockType lock) {
+#if _WIN32
+  const nowide::wstackstring wpath(path);
+  const nowide::wshort_stackstring wmode(mode);
+  FILE* fp = _wfopen(wpath.get(), wmode.get());
+  if (!fp)
+    return nullptr;
+#else
+  FILE* fp = fopen(path, mode);
+  if (!fp)
+    return nullptr;
+#endif
+
+  if (lock != FileLockType::None) {
+#if _WIN32
+    OVERLAPPED ov = {};
+    LockFileEx((HANDLE)(uintptr_t)_fileno(fp), (lock == FileLockType::Write) ? LOCKFILE_EXCLUSIVE_LOCK : 0, 0, 0, 1,
+               &ov);
+#else
+    if (flock(fileno(fp), ((lock == FileLockType::Write) ? LOCK_EX : LOCK_SH) | LOCK_NB))
+      spdlog::error("flock {}: {}", path, strerror(errno));
+#endif
+  }
+
+  return fp;
+}
+
+bool CheckFreeSpace(const char* path, size_t reqSz) {
+#if _WIN32
+  ULARGE_INTEGER freeBytes;
+  const nowide::wstackstring wpath(path);
+  std::array<wchar_t, 1024> buf{};
+  wchar_t* end = nullptr;
+  DWORD ret = GetFullPathNameW(wpath.get(), 1024, buf.data(), &end);
+  if (ret == 0 || ret > 1024) {
+    spdlog::error("GetFullPathNameW {}", path);
+    return false;
+  }
+  if (end != nullptr) {
+    end[0] = L'\0';
+  }
+  if (!GetDiskFreeSpaceExW(buf.data(), &freeBytes, nullptr, nullptr)) {
+    spdlog::error("GetDiskFreeSpaceExW {}: {}", path, GetLastError());
+    return false;
+  }
+  return reqSz < freeBytes.QuadPart;
+#else
+  struct statvfs svfs;
+  if (statvfs(path, &svfs)) {
+    spdlog::error("statvfs {}: {}", path, strerror(errno));
+    return false;
+  }
+  return reqSz < svfs.f_frsize * svfs.f_bavail;
+#endif
+}
+} // namespace nod

lib/Util.hpp

@@ -0,0 +1,126 @@
+#pragma once
+
+#if _WIN32
+#include <array>
+#include <cwctype>
+#include <direct.h>
+#include <nowide/stackstring.hpp>
+#include <winapifamily.h>
+#if defined(WINAPI_FAMILY) && WINAPI_FAMILY != WINAPI_FAMILY_DESKTOP_APP
+#define WINDOWS_STORE 1
+#else
+#define WINDOWS_STORE 0
+#endif
+#else
+#include <cctype>
+#include <cerrno>
+#include <sys/file.h>
+#include <sys/param.h>
+#include <sys/statvfs.h>
+#include <unistd.h>
+#endif
+#include <sys/stat.h>
+
+#include <algorithm>
+#include <cstring>
+#include <string>
+#include <string_view>
+#ifdef _MSC_VER
+#pragma warning(disable : 4996)
+
+#include <sys/stat.h>
+
+#if !defined(S_ISREG) && defined(S_IFMT) && defined(S_IFREG)
+#define S_ISREG(m) (((m)&S_IFMT) == S_IFREG)
+#endif
+
+#if !defined(S_ISDIR) && defined(S_IFMT) && defined(S_IFDIR)
+#define S_ISDIR(m) (((m)&S_IFMT) == S_IFDIR)
+#endif
+
+#if !defined(S_ISLNK)
+#define S_ISLNK(m) 0
+#endif
+#endif
+
+#undef min
+#undef max
+
+namespace nod {
+/* define our own min/max to avoid MSVC BS */
+template <typename T>
+constexpr T min(T a, T b) {
+  return a < b ? a : b;
+}
+template <typename T>
+constexpr T max(T a, T b) {
+  return a > b ? a : b;
+}
+
+/* template-based div for flexible typing and avoiding a library call */
+template <typename T>
+constexpr auto div(T a, T b) {
+  struct DivTp {
+    T quot, rem;
+  };
+  return DivTp{a / b, a % b};
+}
+
+/* filesystem char type */
+#if _WIN32
+static inline int Mkdir(const char* path, int) {
+  const nowide::wstackstring str(path);
+  return _wmkdir(str.get());
+}
+
+using Sstat = struct ::_stat64;
+static inline int Stat(const char* path, Sstat* statout) {
+  const nowide::wstackstring wpath(path);
+  return _wstat64(wpath.get(), statout);
+}
+#else
+static inline int Mkdir(const char* path, mode_t mode) { return mkdir(path, mode); }
+
+typedef struct stat Sstat;
+static inline int Stat(const char* path, Sstat* statout) { return stat(path, statout); }
+#endif
+
+static inline int StrCaseCmp(const char* str1, const char* str2) {
+#ifdef _MSC_VER
+  return _stricmp(str1, str2);
+#else
+  return strcasecmp(str1, str2);
+#endif
+}
+
+#ifndef ROUND_UP_32
+#define ROUND_UP_32(val) (((val) + 31) & ~31)
+#define ROUND_UP_16(val) (((val) + 15) & ~15)
+#endif
+
+enum class FileLockType { None = 0, Read, Write };
+FILE* Fopen(const char* path, const char* mode, FileLockType lock = FileLockType::None);
+
+static inline int FSeek(FILE* fp, int64_t offset, int whence) {
+#if _WIN32
+  return _fseeki64(fp, offset, whence);
+#elif __APPLE__ || __FreeBSD__
+  return fseeko(fp, offset, whence);
+#else
+  return fseeko64(fp, offset, whence);
+#endif
+}
+
+static inline int64_t FTell(FILE* fp) {
+#if _WIN32
+  return _ftelli64(fp);
+#elif __APPLE__ || __FreeBSD__
+  return ftello(fp);
+#else
+  return ftello64(fp);
+#endif
+}
+
+bool CheckFreeSpace(const char* path, size_t reqSz);
+
+} // namespace nod

lib/nod.cpp

@@ -1,88 +1,86 @@
-#include <stdio.h>
 #include "nod/nod.hpp"
+
+#include <cstdio>
+
 #include "nod/DiscBase.hpp"
+#include "nod/DiscGCN.hpp"
+#include "nod/DiscWii.hpp"
 
-namespace nod
-{
+#include <spdlog/spdlog.h>
 
-logvisor::Module LogModule("nod");
+namespace nod {
+std::unique_ptr<IDiscIO> NewDiscIOISO(std::string_view path);
+std::unique_ptr<IDiscIO> NewDiscIOWBFS(std::string_view path);
+std::unique_ptr<IDiscIO> NewDiscIONFS(std::string_view path);
 
-std::unique_ptr<IDiscIO> NewDiscIOISO(const SystemChar* path);
-std::unique_ptr<IDiscIO> NewDiscIOWBFS(const SystemChar* path);
+std::unique_ptr<DiscBase> OpenDiscFromImage(std::string_view path, bool& isWii) {
+  /* Temporary file handle to determine image type */
+  std::unique_ptr<IFileIO> fio = NewFileIO(path);
+  if (!fio->exists()) {
+    spdlog::error("Unable to open '{}'", path);
+    return {};
+  }
+  std::unique_ptr<IFileIO::IReadStream> rs = fio->beginReadStream();
+  if (!rs)
+    return {};
 
-std::unique_ptr<DiscBase> OpenDiscFromImage(const SystemChar* path, bool& isWii)
-{
-    /* Temporary file handle to determine image type */
-    std::unique_ptr<IFileIO> fio = NewFileIO(path);
-    if (!fio->exists())
-    {
-        LogModule.report(logvisor::Error, _S("Unable to open '%s'"), path);
-        return {};
+  isWii = false;
+  std::unique_ptr<IDiscIO> discIO;
+  uint32_t magic = 0;
+  if (rs->read(&magic, 4) != 4) {
+    spdlog::error("Unable to read magic from '{}'", path);
+    return {};
+  }
+
+  using SignedSize = std::make_signed<std::string::size_type>::type;
+  const auto dotPos = SignedSize(path.rfind('.'));
+  const auto slashPos = SignedSize(path.find_last_of("/\\"));
+  if (magic == nod::SBig((uint32_t)'WBFS')) {
+    discIO = NewDiscIOWBFS(path);
+    isWii = true;
+  } else if (path.size() > 4 && dotPos != -1 && dotPos > slashPos &&
+             !path.compare(slashPos + 1, 4, "hif_") &&
+             !path.compare(dotPos, path.size() - dotPos, ".nfs")) {
+    discIO = NewDiscIONFS(path);
+    isWii = true;
+  } else {
+    rs->seek(0x18, SEEK_SET);
+    rs->read(&magic, 4);
+    magic = nod::SBig(magic);
+    if (magic == 0x5D1C9EA3) {
+      discIO = NewDiscIOISO(path);
+      isWii = true;
+    } else {
+      rs->read(&magic, 4);
+      magic = nod::SBig(magic);
+      if (magic == 0xC2339F3D)
+        discIO = NewDiscIOISO(path);
     }
-    std::unique_ptr<IFileIO::IReadStream> rs = fio->beginReadStream();
-    if (!rs)
-        return {};
+  }
 
-    isWii = false;
-    std::unique_ptr<IDiscIO> discIO;
-    uint32_t magic = 0;
-    if (rs->read(&magic, 4) != 4)
-    {
-        LogModule.report(logvisor::Error, _S("Unable to read magic from '%s'"), path);
-        return {};
-    }
+  if (!discIO) {
+    spdlog::error("'{}' is not a valid image", path);
+    return {};
+  }
 
-    if (magic == nod::SBig((uint32_t)'WBFS'))
-    {
-        discIO = NewDiscIOWBFS(path);
-        isWii = true;
-    }
-    else
-    {
-        rs->seek(0x18, SEEK_SET);
-        rs->read(&magic, 4);
-        magic = nod::SBig(magic);
-        if (magic == 0x5D1C9EA3)
-        {
-            discIO = NewDiscIOISO(path);
-            isWii = true;
-        }
-        else
-        {
-            rs->read(&magic, 4);
-            magic = nod::SBig(magic);
-            if (magic == 0xC2339F3D)
-                discIO = NewDiscIOISO(path);
-        }
-    }
-
-    if (!discIO)
-    {
-        LogModule.report(logvisor::Error, _S("'%s' is not a valid image"), path);
-        return {};
-    }
-
-    bool Err = false;
-    std::unique_ptr<DiscBase> ret;
-    if (isWii)
-    {
-        ret = std::unique_ptr<DiscBase>(new DiscWii(std::move(discIO), Err));
-        if (Err)
-            return {};
-        return ret;
-    }
-
-    ret = std::unique_ptr<DiscBase>(new DiscGCN(std::move(discIO), Err));
-    if (Err)
-        return {};
+  bool err = false;
+  std::unique_ptr<DiscBase> ret;
+  if (isWii) {
+    ret = std::make_unique<DiscWii>(std::move(discIO), err);
+    if (err)
+      return {};
     return ret;
+  }
+
+  ret = std::make_unique<DiscGCN>(std::move(discIO), err);
+  if (err)
+    return {};
+  return ret;
 }
 
-std::unique_ptr<DiscBase> OpenDiscFromImage(const SystemChar* path)
-{
-    bool isWii;
-    return OpenDiscFromImage(path, isWii);
-}
-
+std::unique_ptr<DiscBase> OpenDiscFromImage(std::string_view path) {
+  bool isWii;
+  return OpenDiscFromImage(path, isWii);
 }
 
+} // namespace nod