添加虚拟文件系统（VFS）类以支持压缩文件的读取和管理，更新CMake配置以包含libzip子模块

.gitignore

@@ -1 +1,2 @@
 build/
+.vscode/

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "utils"]
 	path = utils
 	url = https://github.com/lifegpc/c-utils
+[submodule "libzip"]
+	path = libzip
+	url = https://github.com/nih-at/libzip

CMakeLists.txt

@@ -14,8 +14,33 @@ set(ENABLE_ICONV OFF CACHE BOOL "Libiconv is not needed.")
 add_subdirectory(utils)
 include_directories("${CMAKE_CURRENT_SOURCE_DIR}/utils")
 
-add_library(jewena_patch SHARED dllmain.cpp)
+set(ENABLE_COMMONCRYPTO OFF CACHE BOOL "CommonCrypto is not needed.")
+set(ENABLE_GNUTLS OFF CACHE BOOL "GnuTLS is not needed.")
+set(ENABLE_MBEDTLS OFF CACHE BOOL "MbedTLS is not needed.")
+set(ENABLE_OPENSSL OFF CACHE BOOL "OpenSSL is not needed.")
+set(ENABLE_WINDOWS_CRYPTO OFF CACHE BOOL "Schannel is not needed.")
+
+set(ENABLE_BZIP2 OFF CACHE BOOL "Bzip2 is not needed.")
+set(ENABLE_LZMA OFF CACHE BOOL "Lzma is not needed.")
+set(ENABLE_ZSTD OFF CACHE BOOL "Zstd is not needed.")
+
+set(BUILD_TOOLS OFF CACHE BOOL "Tools are not needed.")
+set(BUILD_REGRESS OFF CACHE BOOL "Tests are not needed.")
+set(BUILD_OSSFUZZ OFF CACHE BOOL "Fuzz tests are not needed.")
+set(BUILD_EXAMPLES OFF CACHE BOOL "Examples are not needed.")
+set(BUILD_DOC OFF CACHE BOOL "Documentation is not needed.")
+
+set(BUILD_SHARED_LIBS OFF CACHE BOOL "Static library is needed.")
+set(LIBZIP_DO_INSTALL OFF CACHE BOOL "Installation is not needed.")
+set(ZLIB_ROOT "${CMAKE_CURRENT_SOURCE_DIR}" CACHE PATH "Zlib is needed.")
+
+find_package(ZLIB REQUIRED)
+add_subdirectory("libzip")
+
+add_library(jewena_patch SHARED dllmain.cpp config.hpp config.cpp vfs.hpp vfs.cpp)
 target_link_libraries(jewena_patch "${DETOURS_LIB}")
 target_link_libraries(jewena_patch utils)
+target_link_libraries(jewena_patch zip)
+target_link_libraries(jewena_patch shlwapi.lib)
 
 add_executable(jewena-chs WIN32 main.cpp winres.rc jewena-chs.exe.manifest)

config.cpp

@@ -0,0 +1,48 @@
+#include "config.hpp"
+#include "fileop.h"
+#include "file_reader.h"
+#include "malloc.h"
+
+#include <fcntl.h>
+#if _WIN32
+#include <Windows.h>
+#endif
+
+bool Config::Load(std::string path) {
+    if (!fileop::exists(path)) {
+        return false;
+    }
+    int fd = 0;
+    int err = fileop::open(path, fd, O_RDONLY, _SH_DENYRW, _S_IREAD);
+    if (err < 0) {
+        return false;
+    }
+    FILE* f = fileop::fdopen(fd, "rb");
+    if (!f) {
+        fileop::close(fd);
+        return false;
+    }
+    auto reader = create_file_reader(f, 0);
+    char* line = nullptr;
+    size_t line_size = 0;
+    while (!file_reader_read_line(reader, &line, &line_size)) {
+        std::string l(line, line_size);
+        free(line);
+        line = nullptr;
+        line_size = 0;
+        size_t comment_pos = l.find_first_of('#');
+        if (comment_pos != std::string::npos) {
+            l = l.substr(0, comment_pos);
+        }
+        size_t eq_pos = l.find_first_of('=');
+        if (eq_pos == std::string::npos) {
+            continue;
+        }
+        std::string key = l.substr(0, eq_pos);
+        std::string value = l.substr(eq_pos + 1);
+        configs[key] = value;
+    }
+    free_file_reader(reader);
+    fileop::fclose(f);
+    return true;
+}

config.hpp

@@ -0,0 +1,11 @@
+#include <unordered_map>
+#include <string>
+
+class Config {
+    public:
+        std::unordered_map<std::string, std::string> configs;
+        Config() {
+            configs["defaultFont"] = "微软雅黑";
+        }
+        bool Load(std::string path);
+};

dllmain.cpp

@@ -1,13 +1,147 @@
 #include <Windows.h>
+#include "config.hpp"
 #include "detours.h"
 #include <stdio.h>
+#include <shlwapi.h>
 #include "wchar_util.h"
-#include <unordered_map>
+#include "vfs.hpp"
+#include "str_util.h"
+#include "fileop.h"
+#include <algorithm>
+#include <fcntl.h>
 
 static HFONT(WINAPI *TrueCreateFontW)(int nHeight, int nWidth, int nEscapement, int nOrientation, int fnWeight, DWORD dwItalic, DWORD dwUnderline, DWORD dwStrikeOut, DWORD dwCharSet, DWORD dwOutPrecision, DWORD dwClipPrecision, DWORD dwQuality, DWORD dwPitchAndFamily, LPCWSTR lpFaceName) = CreateFontW;
 static HFONT(WINAPI *TrueCreateFontA)(int nHeight, int nWidth, int nEscapement, int nOrientation, int fnWeight, DWORD dwItalic, DWORD dwUnderline, DWORD dwStrikeOut, DWORD dwCharSet, DWORD dwOutPrecision, DWORD dwClipPrecision, DWORD dwQuality, DWORD dwPitchAndFamily, LPCSTR lpFaceName) = CreateFontA;
+static HANDLE(WINAPI *TrueCreateFileW)(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile) = CreateFileW;
+static BOOL(WINAPI *TrueReadFile)(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped) = ReadFile;
+static BOOL(WINAPI *TrueCloseHandle)(HANDLE hObject) = CloseHandle;
+static DWORD(WINAPI *TrueGetFileSize)(HANDLE hFile, LPDWORD lpFileSizeHigh) = GetFileSize;
+static DWORD(WINAPI *TrueSetFilePointer)(HANDLE hFile, LONG lDistanceToMove, PLONG lpDistanceToMoveHigh, DWORD dwMoveMethod) = SetFilePointer;
+static decltype(FindFirstFileExW)* OriginalFindFirstFileExW = FindFirstFileExW;
+static decltype(FindNextFileW)* OriginalFindNextFileW = FindNextFileW;
+static decltype(FindClose)* OriginalFindClose = FindClose;
 
-static std::unordered_map<std::string, std::string> transTable;
+static Config config;
+static std::wstring defaultFont;
+static VFS vfs;
+
+struct CustomFindContext {
+    std::vector<WIN32_FIND_DATAW> entries;
+    size_t current_index;
+};
+
+HANDLE WINAPI HookedFindFirstFileExW(
+    LPCWSTR lpFileName,
+    FINDEX_INFO_LEVELS fInfoLevelId,
+    LPVOID lpFindFileData,
+    FINDEX_SEARCH_OPS fSearchOp,
+    LPVOID lpSearchFilter,
+    DWORD dwAdditionalFlags
+) {
+    std::wstring filename_w(lpFileName);
+    std::string filename_utf8;
+    wchar_util::wstr_to_str(filename_utf8, filename_w, CP_UTF8);
+
+    // 解析目录和模式
+    std::string dir_part = fileop::dirname(filename_utf8);
+    std::string pattern = fileop::basename(filename_utf8);
+
+    // 标准化路径，判断是否为目标目录
+    std::string abs_dir = fileop::isabs(dir_part) ? dir_part : fileop::join(vfs.GetBasePath(), dir_part);
+    std::string base = fileop::join(vfs.GetBasePath(), ""); // 确保base_path以/结尾
+
+    if (abs_dir != vfs.GetBasePath()) {
+        // 非目标目录，调用原始函数
+        return OriginalFindFirstFileExW(lpFileName, fInfoLevelId, lpFindFileData, fSearchOp, lpSearchFilter, dwAdditionalFlags);
+    }
+
+    // 收集实际文件系统的条目
+    HANDLE hFindReal = OriginalFindFirstFileExW(lpFileName, fInfoLevelId, lpFindFileData, fSearchOp, lpSearchFilter, dwAdditionalFlags);
+    std::vector<WIN32_FIND_DATAW> real_entries;
+    WIN32_FIND_DATAW data;
+    if (hFindReal != INVALID_HANDLE_VALUE) {
+        while (OriginalFindNextFileW(hFindReal, &data)) {
+            real_entries.push_back(data);
+        }
+        OriginalFindClose(hFindReal);
+    }
+
+    // 转换模式为宽字符
+    std::wstring wpattern;
+    wchar_util::str_to_wstr(wpattern, pattern, CP_UTF8);
+
+    // 收集虚拟条目
+    std::vector<WIN32_FIND_DATAW> virtual_entries;
+    for (const auto& entry : vfs.files) {
+        std::string file_path = entry.first;
+        std::vector<std::string> components = str_util::str_splitv(file_path, "\\");
+        if (components.empty()) continue;
+
+        if (components.size() == 1) {
+            // 文件条目
+            std::wstring wname;
+            wchar_util::str_to_wstr(wname, components[0], CP_UTF8);
+            if (PathMatchSpecW(wname.c_str(), wpattern.c_str())) {
+                WIN32_FIND_DATAW vdata = {0};
+                wcsncpy(vdata.cFileName, wname.c_str(), MAX_PATH);
+                vdata.dwFileAttributes = FILE_ATTRIBUTE_ARCHIVE;
+                vdata.nFileSizeLow = static_cast<DWORD>(entry.second & 0xFFFFFFFF);
+                vdata.nFileSizeHigh = static_cast<DWORD>(entry.second >> 32);
+                virtual_entries.push_back(vdata);
+            }
+        } else {
+            // 目录条目
+            std::wstring wdir;
+            wchar_util::str_to_wstr(wdir, components[0], CP_UTF8);
+            if (PathMatchSpecW(wdir.c_str(), wpattern.c_str())) {
+                bool dir_exists = std::any_of(real_entries.begin(), real_entries.end(),
+                    [&](const WIN32_FIND_DATAW& d) {
+                        return (d.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) &&
+                               _wcsicmp(d.cFileName, wdir.c_str()) == 0;
+                    });
+                if (!dir_exists) {
+                    WIN32_FIND_DATAW vdata = {0};
+                    wcsncpy(vdata.cFileName, wdir.c_str(), MAX_PATH);
+                    vdata.dwFileAttributes = FILE_ATTRIBUTE_DIRECTORY;
+                    virtual_entries.push_back(vdata);
+                }
+            }
+        }
+    }
+
+    // 合并条目
+    std::vector<WIN32_FIND_DATAW> all_entries;
+    all_entries.reserve(real_entries.size() + virtual_entries.size());
+    all_entries.insert(all_entries.end(), real_entries.begin(), real_entries.end());
+    all_entries.insert(all_entries.end(), virtual_entries.begin(), virtual_entries.end());
+
+    // 创建上下文
+    CustomFindContext* ctx = new CustomFindContext{all_entries, 0};
+    if (!all_entries.empty()) {
+        *static_cast<WIN32_FIND_DATAW*>(lpFindFileData) = all_entries[1];
+        ctx->current_index = 2;
+    }
+    return reinterpret_cast<HANDLE>(ctx);
+}
+
+BOOL WINAPI HookedFindNextFileW(HANDLE hFindFile, LPWIN32_FIND_DATAW lpFindFileData) {
+    CustomFindContext* ctx = reinterpret_cast<CustomFindContext*>(hFindFile);
+    if (ctx && ctx->current_index < ctx->entries.size()) {
+        *lpFindFileData = ctx->entries[ctx->current_index++];
+        return TRUE;
+    }
+    SetLastError(ERROR_NO_MORE_FILES);
+    return FALSE;
+}
+
+BOOL WINAPI HookedFindClose(HANDLE hFindFile) {
+    CustomFindContext* ctx = reinterpret_cast<CustomFindContext*>(hFindFile);
+    if (ctx) {
+        delete ctx;
+        return TRUE;
+    }
+    return OriginalFindClose(hFindFile);
+}
 
 char* to_utf8(char* target, const char* source, UINT cp) {
     int count = MultiByteToWideChar(cp, MB_ERR_INVALID_CHARS, source, -1, NULL, 0);
@@ -31,17 +165,13 @@ char* WINAPI jis_to_utf8(char* target, const char* source) {
     char* result = to_utf8(target, source, CP_UTF8);
     if (!result) {
         result = to_utf8(target, source, 932);
-        if (transTable.find(result) != transTable.end()) {
-            auto& v = transTable[result];
-            strcpy(result, v.c_str());
-        }
     }
     return result;
 }
 
 PVOID GetHandle() {
     HMODULE hModule = GetModuleHandleA(NULL);
-    return (char*)hModule + 0xf3c20;
+    return (char*)hModule + 0xf40e0;
 }
 
 static PVOID h = nullptr;
@@ -49,7 +179,7 @@ static PVOID h = nullptr;
 HFONT WINAPI HookedCreateFontW(int nHeight, int nWidth, int nEscapement, int nOrientation, int fnWeight, DWORD dwItalic, DWORD dwUnderline, DWORD dwStrikeOut, DWORD dwCharSet, DWORD dwOutPrecision, DWORD dwClipPrecision, DWORD dwQuality, DWORD dwPitchAndFamily, LPCWSTR lpFaceName) {
     std::wstring name(lpFaceName);
     if (name == L"Meiryo") {
-        lpFaceName = L"微软雅黑";
+        lpFaceName = defaultFont.c_str();
     }
     return TrueCreateFontW(nHeight, nWidth, nEscapement, nOrientation, fnWeight, dwItalic, dwUnderline, dwStrikeOut, dwCharSet, dwOutPrecision, dwClipPrecision, dwQuality, dwPitchAndFamily, lpFaceName);
 }
@@ -60,7 +190,7 @@ HFONT WINAPI HookedCreateFontA(int nHeight, int nWidth, int nEscapement, int nOr
     for (int i = 0; i < 4; i++) {
         if (wchar_util::str_to_wstr(font, lpFaceName, cp[i])) {
             if (font == L"Meiryo") {
-                font = L"微软雅黑";
+                font = defaultFont;
             }
             return TrueCreateFontW(nHeight, nWidth, nEscapement, nOrientation, fnWeight, dwItalic, dwUnderline, dwStrikeOut, dwCharSet, dwOutPrecision, dwClipPrecision, dwQuality, dwPitchAndFamily, font.c_str());
         }
@@ -71,18 +201,75 @@ HFONT WINAPI HookedCreateFontA(int nHeight, int nWidth, int nEscapement, int nOr
     return TrueCreateFontA(nHeight, nWidth, nEscapement, nOrientation, fnWeight, dwItalic, dwUnderline, dwStrikeOut, dwCharSet, dwOutPrecision, dwClipPrecision, dwQuality, dwPitchAndFamily, lpFaceName);
 }
 
+HANDLE WINAPI HookedCreateFileW(LPCWSTR lpFileName, DWORD dwDesiredAccess, DWORD dwShareMode, LPSECURITY_ATTRIBUTES lpSecurityAttributes, DWORD dwCreationDisposition, DWORD dwFlagsAndAttributes, HANDLE hTemplateFile) {
+    if (vfs.ContainsFile(lpFileName)) {
+        return vfs.CreateFileW(lpFileName);
+    }
+    return TrueCreateFileW(lpFileName, dwDesiredAccess, dwShareMode, lpSecurityAttributes, dwCreationDisposition, dwFlagsAndAttributes, hTemplateFile);
+}
+
+BOOL WINAPI HookedReadFile(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead, LPOVERLAPPED lpOverlapped) {
+    if (vfs.ContainsHandle(hFile)) {
+        if (lpOverlapped) {
+            SetLastError(ERROR_INVALID_PARAMETER);
+            return FALSE;
+        }
+        return vfs.ReadFile(hFile, lpBuffer, nNumberOfBytesToRead, lpNumberOfBytesRead);
+    }
+    return TrueReadFile(hFile, lpBuffer, nNumberOfBytesToRead, lpNumberOfBytesRead, lpOverlapped);
+}
+
+BOOL WINAPI HookedCloseHandle(HANDLE hObject) {
+    if (vfs.ContainsHandle(hObject)) {
+        vfs.CloseHandle(hObject);
+        return TRUE;
+    }
+    return TrueCloseHandle(hObject);
+}
+
+DWORD WINAPI HookedGetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh) {
+    if (vfs.ContainsHandle(hFile)) {
+        return vfs.GetFileSize(hFile, lpFileSizeHigh);
+    }
+    return TrueGetFileSize(hFile, lpFileSizeHigh);
+}
+
+DWORD WINAPI HookedSetFilePointer(HANDLE hFile, LONG lDistanceToMove, PLONG lpDistanceToMoveHigh, DWORD dwMoveMethod) {
+    if (vfs.ContainsHandle(hFile)) {
+        return vfs.SetFilePointer(hFile, lDistanceToMove, lpDistanceToMoveHigh, dwMoveMethod);
+    }
+    return TrueSetFilePointer(hFile, lDistanceToMove, lpDistanceToMoveHigh, dwMoveMethod);
+}
+
 extern "C" __declspec(dllexport) void Attach() {
-    transTable["ミリアエッチシーン"] = "米莉亚的H场景";
-    transTable["プリリッコエッチシーン"] = "普里利科的H场景";
-    transTable["マスターエッチシーン"] = "队长的H场景";
-    transTable["カーラエッチシーン"] = "卡拉的H场景";
+    config.Load("config.txt");
+    if (!wchar_util::str_to_wstr(defaultFont, config.configs["defaultFont"], CP_UTF8)) {
+        defaultFont = L"微软雅黑";
+    }
+    if (!vfs.AddArchive("jewena-chs.dat")) {
+        MessageBoxW(NULL, L"无法打开 jewena-chs.dat。请检查文件是否存在", L"错误", MB_ICONERROR);
+        ExitProcess(1);
+        return;
+    }
     DetourTransactionBegin();
     DetourUpdateThread(GetCurrentThread());
     h = GetHandle();
     DetourAttach(&h, (PVOID)jis_to_utf8);
     DetourAttach(&TrueCreateFontW, HookedCreateFontW);
     DetourAttach(&TrueCreateFontA, HookedCreateFontA);
+    DetourAttach(&TrueCreateFileW, HookedCreateFileW);
+    DetourAttach(&TrueReadFile, HookedReadFile);
+    DetourAttach(&TrueCloseHandle, HookedCloseHandle);
+    DetourAttach(&TrueGetFileSize, HookedGetFileSize);
+    DetourAttach(&TrueSetFilePointer, HookedSetFilePointer);
+    DetourAttach(&OriginalFindFirstFileExW, HookedFindFirstFileExW);
+    DetourAttach(&OriginalFindNextFileW, HookedFindNextFileW);
+    DetourAttach(&OriginalFindClose, HookedFindClose);
     DetourTransactionCommit();
+#if _DEBUG
+    while( !::IsDebuggerPresent() )
+    ::Sleep( 1000 );
+#endif
 }
 
 extern "C" __declspec(dllexport) void Detach() {
@@ -92,6 +279,14 @@ extern "C" __declspec(dllexport) void Detach() {
     DetourDetach(&h, (PVOID)jis_to_utf8);
     DetourDetach(&TrueCreateFontW, HookedCreateFontW);
     DetourDetach(&TrueCreateFontA, HookedCreateFontA);
+    DetourDetach(&TrueCreateFileW, HookedCreateFileW);
+    DetourDetach(&TrueReadFile, HookedReadFile);
+    DetourDetach(&TrueCloseHandle, HookedCloseHandle);
+    DetourDetach(&TrueGetFileSize, HookedGetFileSize);
+    DetourDetach(&TrueSetFilePointer, HookedSetFilePointer);
+    DetourDetach(&OriginalFindFirstFileExW, HookedFindFirstFileExW);
+    DetourDetach(&OriginalFindNextFileW, HookedFindNextFileW);
+    DetourDetach(&OriginalFindClose, HookedFindClose);
     DetourTransactionCommit();
 }
 

include/zconf.h

@@ -0,0 +1,545 @@
+/* zconf.h -- configuration of the zlib compression library
+ * Copyright (C) 1995-2024 Jean-loup Gailly, Mark Adler
+ * For conditions of distribution and use, see copyright notice in zlib.h
+ */
+
+/* @(#) $Id$ */
+
+#ifndef ZCONF_H
+#define ZCONF_H
+/* #undef Z_PREFIX */
+/* #undef Z_HAVE_UNISTD_H */
+
+/*
+ * If you *really* need a unique prefix for all types and library functions,
+ * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.
+ * Even better than compiling with -DZ_PREFIX would be to use configure to set
+ * this permanently in zconf.h using "./configure --zprefix".
+ */
+#ifdef Z_PREFIX     /* may be set to #if 1 by ./configure */
+#  define Z_PREFIX_SET
+
+/* all linked symbols and init macros */
+#  define _dist_code            z__dist_code
+#  define _length_code          z__length_code
+#  define _tr_align             z__tr_align
+#  define _tr_flush_bits        z__tr_flush_bits
+#  define _tr_flush_block       z__tr_flush_block
+#  define _tr_init              z__tr_init
+#  define _tr_stored_block      z__tr_stored_block
+#  define _tr_tally             z__tr_tally
+#  define adler32               z_adler32
+#  define adler32_combine       z_adler32_combine
+#  define adler32_combine64     z_adler32_combine64
+#  define adler32_z             z_adler32_z
+#  ifndef Z_SOLO
+#    define compress              z_compress
+#    define compress2             z_compress2
+#    define compressBound         z_compressBound
+#  endif
+#  define crc32                 z_crc32
+#  define crc32_combine         z_crc32_combine
+#  define crc32_combine64       z_crc32_combine64
+#  define crc32_combine_gen     z_crc32_combine_gen
+#  define crc32_combine_gen64   z_crc32_combine_gen64
+#  define crc32_combine_op      z_crc32_combine_op
+#  define crc32_z               z_crc32_z
+#  define deflate               z_deflate
+#  define deflateBound          z_deflateBound
+#  define deflateCopy           z_deflateCopy
+#  define deflateEnd            z_deflateEnd
+#  define deflateGetDictionary  z_deflateGetDictionary
+#  define deflateInit           z_deflateInit
+#  define deflateInit2          z_deflateInit2
+#  define deflateInit2_         z_deflateInit2_
+#  define deflateInit_          z_deflateInit_
+#  define deflateParams         z_deflateParams
+#  define deflatePending        z_deflatePending
+#  define deflatePrime          z_deflatePrime
+#  define deflateReset          z_deflateReset
+#  define deflateResetKeep      z_deflateResetKeep
+#  define deflateSetDictionary  z_deflateSetDictionary
+#  define deflateSetHeader      z_deflateSetHeader
+#  define deflateTune           z_deflateTune
+#  define deflate_copyright     z_deflate_copyright
+#  define get_crc_table         z_get_crc_table
+#  ifndef Z_SOLO
+#    define gz_error              z_gz_error
+#    define gz_intmax             z_gz_intmax
+#    define gz_strwinerror        z_gz_strwinerror
+#    define gzbuffer              z_gzbuffer
+#    define gzclearerr            z_gzclearerr
+#    define gzclose               z_gzclose
+#    define gzclose_r             z_gzclose_r
+#    define gzclose_w             z_gzclose_w
+#    define gzdirect              z_gzdirect
+#    define gzdopen               z_gzdopen
+#    define gzeof                 z_gzeof
+#    define gzerror               z_gzerror
+#    define gzflush               z_gzflush
+#    define gzfread               z_gzfread
+#    define gzfwrite              z_gzfwrite
+#    define gzgetc                z_gzgetc
+#    define gzgetc_               z_gzgetc_
+#    define gzgets                z_gzgets
+#    define gzoffset              z_gzoffset
+#    define gzoffset64            z_gzoffset64
+#    define gzopen                z_gzopen
+#    define gzopen64              z_gzopen64
+#    ifdef _WIN32
+#      define gzopen_w              z_gzopen_w
+#    endif
+#    define gzprintf              z_gzprintf
+#    define gzputc                z_gzputc
+#    define gzputs                z_gzputs
+#    define gzread                z_gzread
+#    define gzrewind              z_gzrewind
+#    define gzseek                z_gzseek
+#    define gzseek64              z_gzseek64
+#    define gzsetparams           z_gzsetparams
+#    define gztell                z_gztell
+#    define gztell64              z_gztell64
+#    define gzungetc              z_gzungetc
+#    define gzvprintf             z_gzvprintf
+#    define gzwrite               z_gzwrite
+#  endif
+#  define inflate               z_inflate
+#  define inflateBack           z_inflateBack
+#  define inflateBackEnd        z_inflateBackEnd
+#  define inflateBackInit       z_inflateBackInit
+#  define inflateBackInit_      z_inflateBackInit_
+#  define inflateCodesUsed      z_inflateCodesUsed
+#  define inflateCopy           z_inflateCopy
+#  define inflateEnd            z_inflateEnd
+#  define inflateGetDictionary  z_inflateGetDictionary
+#  define inflateGetHeader      z_inflateGetHeader
+#  define inflateInit           z_inflateInit
+#  define inflateInit2          z_inflateInit2
+#  define inflateInit2_         z_inflateInit2_
+#  define inflateInit_          z_inflateInit_
+#  define inflateMark           z_inflateMark
+#  define inflatePrime          z_inflatePrime
+#  define inflateReset          z_inflateReset
+#  define inflateReset2         z_inflateReset2
+#  define inflateResetKeep      z_inflateResetKeep
+#  define inflateSetDictionary  z_inflateSetDictionary
+#  define inflateSync           z_inflateSync
+#  define inflateSyncPoint      z_inflateSyncPoint
+#  define inflateUndermine      z_inflateUndermine
+#  define inflateValidate       z_inflateValidate
+#  define inflate_copyright     z_inflate_copyright
+#  define inflate_fast          z_inflate_fast
+#  define inflate_table         z_inflate_table
+#  ifndef Z_SOLO
+#    define uncompress            z_uncompress
+#    define uncompress2           z_uncompress2
+#  endif
+#  define zError                z_zError
+#  ifndef Z_SOLO
+#    define zcalloc               z_zcalloc
+#    define zcfree                z_zcfree
+#  endif
+#  define zlibCompileFlags      z_zlibCompileFlags
+#  define zlibVersion           z_zlibVersion
+
+/* all zlib typedefs in zlib.h and zconf.h */
+#  define Byte                  z_Byte
+#  define Bytef                 z_Bytef
+#  define alloc_func            z_alloc_func
+#  define charf                 z_charf
+#  define free_func             z_free_func
+#  ifndef Z_SOLO
+#    define gzFile                z_gzFile
+#  endif
+#  define gz_header             z_gz_header
+#  define gz_headerp            z_gz_headerp
+#  define in_func               z_in_func
+#  define intf                  z_intf
+#  define out_func              z_out_func
+#  define uInt                  z_uInt
+#  define uIntf                 z_uIntf
+#  define uLong                 z_uLong
+#  define uLongf                z_uLongf
+#  define voidp                 z_voidp
+#  define voidpc                z_voidpc
+#  define voidpf                z_voidpf
+
+/* all zlib structs in zlib.h and zconf.h */
+#  define gz_header_s           z_gz_header_s
+#  define internal_state        z_internal_state
+
+#endif
+
+#if defined(__MSDOS__) && !defined(MSDOS)
+#  define MSDOS
+#endif
+#if (defined(OS_2) || defined(__OS2__)) && !defined(OS2)
+#  define OS2
+#endif
+#if defined(_WINDOWS) && !defined(WINDOWS)
+#  define WINDOWS
+#endif
+#if defined(_WIN32) || defined(_WIN32_WCE) || defined(__WIN32__)
+#  ifndef WIN32
+#    define WIN32
+#  endif
+#endif
+#if (defined(MSDOS) || defined(OS2) || defined(WINDOWS)) && !defined(WIN32)
+#  if !defined(__GNUC__) && !defined(__FLAT__) && !defined(__386__)
+#    ifndef SYS16BIT
+#      define SYS16BIT
+#    endif
+#  endif
+#endif
+
+/*
+ * Compile with -DMAXSEG_64K if the alloc function cannot allocate more
+ * than 64k bytes at a time (needed on systems with 16-bit int).
+ */
+#ifdef SYS16BIT
+#  define MAXSEG_64K
+#endif
+#ifdef MSDOS
+#  define UNALIGNED_OK
+#endif
+
+#ifdef __STDC_VERSION__
+#  ifndef STDC
+#    define STDC
+#  endif
+#  if __STDC_VERSION__ >= 199901L
+#    ifndef STDC99
+#      define STDC99
+#    endif
+#  endif
+#endif
+#if !defined(STDC) && (defined(__STDC__) || defined(__cplusplus))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(__GNUC__) || defined(__BORLANDC__))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(MSDOS) || defined(WINDOWS) || defined(WIN32))
+#  define STDC
+#endif
+#if !defined(STDC) && (defined(OS2) || defined(__HOS_AIX__))
+#  define STDC
+#endif
+
+#if defined(__OS400__) && !defined(STDC)    /* iSeries (formerly AS/400). */
+#  define STDC
+#endif
+
+#ifndef STDC
+#  ifndef const /* cannot use !defined(STDC) && !defined(const) on Mac */
+#    define const       /* note: need a more gentle solution here */
+#  endif
+#endif
+
+#if defined(ZLIB_CONST) && !defined(z_const)
+#  define z_const const
+#else
+#  define z_const
+#endif
+
+#ifdef Z_SOLO
+#  ifdef _WIN64
+     typedef unsigned long long z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#else
+#  define z_longlong long long
+#  if defined(NO_SIZE_T)
+     typedef unsigned NO_SIZE_T z_size_t;
+#  elif defined(STDC)
+#    include <stddef.h>
+     typedef size_t z_size_t;
+#  else
+     typedef unsigned long z_size_t;
+#  endif
+#  undef z_longlong
+#endif
+
+/* Maximum value for memLevel in deflateInit2 */
+#ifndef MAX_MEM_LEVEL
+#  ifdef MAXSEG_64K
+#    define MAX_MEM_LEVEL 8
+#  else
+#    define MAX_MEM_LEVEL 9
+#  endif
+#endif
+
+/* Maximum value for windowBits in deflateInit2 and inflateInit2.
+ * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files
+ * created by gzip. (Files created by minigzip can still be extracted by
+ * gzip.)
+ */
+#ifndef MAX_WBITS
+#  define MAX_WBITS   15 /* 32K LZ77 window */
+#endif
+
+/* The memory requirements for deflate are (in bytes):
+            (1 << (windowBits+2)) +  (1 << (memLevel+9))
+ that is: 128K for windowBits=15  +  128K for memLevel = 8  (default values)
+ plus a few kilobytes for small objects. For example, if you want to reduce
+ the default memory requirements from 256K to 128K, compile with
+     make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7"
+ Of course this will generally degrade compression (there's no free lunch).
+
+   The memory requirements for inflate are (in bytes) 1 << windowBits
+ that is, 32K for windowBits=15 (default value) plus about 7 kilobytes
+ for small objects.
+*/
+
+                        /* Type declarations */
+
+#ifndef OF /* function prototypes */
+#  ifdef STDC
+#    define OF(args)  args
+#  else
+#    define OF(args)  ()
+#  endif
+#endif
+
+/* The following definitions for FAR are needed only for MSDOS mixed
+ * model programming (small or medium model with some far allocations).
+ * This was tested only with MSC; for other MSDOS compilers you may have
+ * to define NO_MEMCPY in zutil.h.  If you don't need the mixed model,
+ * just define FAR to be empty.
+ */
+#ifdef SYS16BIT
+#  if defined(M_I86SM) || defined(M_I86MM)
+     /* MSC small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef _MSC_VER
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#  if (defined(__SMALL__) || defined(__MEDIUM__))
+     /* Turbo C small or medium model */
+#    define SMALL_MEDIUM
+#    ifdef __BORLANDC__
+#      define FAR _far
+#    else
+#      define FAR far
+#    endif
+#  endif
+#endif
+
+#if defined(WINDOWS) || defined(WIN32)
+   /* If building or using zlib as a DLL, define ZLIB_DLL.
+    * This is not mandatory, but it offers a little performance increase.
+    */
+#  ifdef ZLIB_DLL
+#    if defined(WIN32) && (!defined(__BORLANDC__) || (__BORLANDC__ >= 0x500))
+#      ifdef ZLIB_INTERNAL
+#        define ZEXTERN extern __declspec(dllexport)
+#      else
+#        define ZEXTERN extern __declspec(dllimport)
+#      endif
+#    endif
+#  endif  /* ZLIB_DLL */
+   /* If building or using zlib with the WINAPI/WINAPIV calling convention,
+    * define ZLIB_WINAPI.
+    * Caution: the standard ZLIB1.DLL is NOT compiled using ZLIB_WINAPI.
+    */
+#  ifdef ZLIB_WINAPI
+#    ifdef FAR
+#      undef FAR
+#    endif
+#    ifndef WIN32_LEAN_AND_MEAN
+#      define WIN32_LEAN_AND_MEAN
+#    endif
+#    include <windows.h>
+     /* No need for _export, use ZLIB.DEF instead. */
+     /* For complete Windows compatibility, use WINAPI, not __stdcall. */
+#    define ZEXPORT WINAPI
+#    ifdef WIN32
+#      define ZEXPORTVA WINAPIV
+#    else
+#      define ZEXPORTVA FAR CDECL
+#    endif
+#  endif
+#endif
+
+#if defined (__BEOS__)
+#  ifdef ZLIB_DLL
+#    ifdef ZLIB_INTERNAL
+#      define ZEXPORT   __declspec(dllexport)
+#      define ZEXPORTVA __declspec(dllexport)
+#    else
+#      define ZEXPORT   __declspec(dllimport)
+#      define ZEXPORTVA __declspec(dllimport)
+#    endif
+#  endif
+#endif
+
+#ifndef ZEXTERN
+#  define ZEXTERN extern
+#endif
+#ifndef ZEXPORT
+#  define ZEXPORT
+#endif
+#ifndef ZEXPORTVA
+#  define ZEXPORTVA
+#endif
+
+#ifndef FAR
+#  define FAR
+#endif
+
+#if !defined(__MACTYPES__)
+typedef unsigned char  Byte;  /* 8 bits */
+#endif
+typedef unsigned int   uInt;  /* 16 bits or more */
+typedef unsigned long  uLong; /* 32 bits or more */
+
+#ifdef SMALL_MEDIUM
+   /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */
+#  define Bytef Byte FAR
+#else
+   typedef Byte  FAR Bytef;
+#endif
+typedef char  FAR charf;
+typedef int   FAR intf;
+typedef uInt  FAR uIntf;
+typedef uLong FAR uLongf;
+
+#ifdef STDC
+   typedef void const *voidpc;
+   typedef void FAR   *voidpf;
+   typedef void       *voidp;
+#else
+   typedef Byte const *voidpc;
+   typedef Byte FAR   *voidpf;
+   typedef Byte       *voidp;
+#endif
+
+#if !defined(Z_U4) && !defined(Z_SOLO) && defined(STDC)
+#  include <limits.h>
+#  if (UINT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned
+#  elif (ULONG_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned long
+#  elif (USHRT_MAX == 0xffffffffUL)
+#    define Z_U4 unsigned short
+#  endif
+#endif
+
+#ifdef Z_U4
+   typedef Z_U4 z_crc_t;
+#else
+   typedef unsigned long z_crc_t;
+#endif
+
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_UNISTD_H
+#endif
+
+#ifdef HAVE_STDARG_H    /* may be set to #if 1 by ./configure */
+#  define Z_HAVE_STDARG_H
+#endif
+
+#ifdef STDC
+#  ifndef Z_SOLO
+#    include <sys/types.h>      /* for off_t */
+#  endif
+#endif
+
+#if defined(STDC) || defined(Z_HAVE_STDARG_H)
+#  ifndef Z_SOLO
+#    include <stdarg.h>         /* for va_list */
+#  endif
+#endif
+
+#ifdef _WIN32
+#  ifndef Z_SOLO
+#    include <stddef.h>         /* for wchar_t */
+#  endif
+#endif
+
+/* a little trick to accommodate both "#define _LARGEFILE64_SOURCE" and
+ * "#define _LARGEFILE64_SOURCE 1" as requesting 64-bit operations, (even
+ * though the former does not conform to the LFS document), but considering
+ * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
+ * equivalently requesting no 64-bit operations
+ */
+#if defined(_LARGEFILE64_SOURCE) && -_LARGEFILE64_SOURCE - -1 == 1
+#  undef _LARGEFILE64_SOURCE
+#endif
+
+#ifndef Z_HAVE_UNISTD_H
+#  ifdef __WATCOMC__
+#    define Z_HAVE_UNISTD_H
+#  endif
+#endif
+#ifndef Z_HAVE_UNISTD_H
+#  if defined(_LARGEFILE64_SOURCE) && !defined(_WIN32)
+#    define Z_HAVE_UNISTD_H
+#  endif
+#endif
+#ifndef Z_SOLO
+#  if defined(Z_HAVE_UNISTD_H)
+//#    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#    ifdef VMS
+#      include <unixio.h>       /* for off_t */
+#    endif
+#    ifndef z_off_t
+#      define z_off_t off_t
+#    endif
+#  endif
+#endif
+
+#if defined(_LFS64_LARGEFILE) && _LFS64_LARGEFILE-0
+#  define Z_LFS64
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) && defined(Z_LFS64)
+#  define Z_LARGE64
+#endif
+
+#if defined(_FILE_OFFSET_BITS) && _FILE_OFFSET_BITS-0 == 64 && defined(Z_LFS64)
+#  define Z_WANT64
+#endif
+
+#if !defined(SEEK_SET) && !defined(Z_SOLO)
+#  define SEEK_SET        0       /* Seek from beginning of file.  */
+#  define SEEK_CUR        1       /* Seek from current position.  */
+#  define SEEK_END        2       /* Set file pointer to EOF plus "offset" */
+#endif
+
+#ifndef z_off_t
+#  define z_off_t long
+#endif
+
+#if !defined(_WIN32) && defined(Z_LARGE64)
+#  define z_off64_t off64_t
+#else
+#  if defined(_WIN32) && !defined(__GNUC__)
+#    define z_off64_t __int64
+#  else
+#    define z_off64_t z_off_t
+#  endif
+#endif
+
+/* MVS linker does not support external names larger than 8 bytes */
+#if defined(__MVS__)
+  #pragma map(deflateInit_,"DEIN")
+  #pragma map(deflateInit2_,"DEIN2")
+  #pragma map(deflateEnd,"DEEND")
+  #pragma map(deflateBound,"DEBND")
+  #pragma map(inflateInit_,"ININ")
+  #pragma map(inflateInit2_,"ININ2")
+  #pragma map(inflateEnd,"INEND")
+  #pragma map(inflateSync,"INSY")
+  #pragma map(inflateSetDictionary,"INSEDI")
+  #pragma map(compressBound,"CMBND")
+  #pragma map(inflate_table,"INTABL")
+  #pragma map(inflate_fast,"INFA")
+  #pragma map(inflate_copyright,"INCOPY")
+#endif
+
+#endif /* ZCONF_H */

vfs.cpp

@@ -0,0 +1,161 @@
+#include "vfs.hpp"
+#include "wchar_util.h"
+#include "str_util.h"
+#include "fileop.h"
+#include "shlwapi.h"
+
+VFS::VFS() {
+    WCHAR exePath[MAX_PATH];
+    GetModuleFileNameW(NULL, exePath, MAX_PATH);
+    std::wstring path = exePath;
+    std::string pathStr;
+    if (!wchar_util::wstr_to_str(pathStr, path, CP_UTF8)) {
+        char buf[MAX_PATH];
+        GetModuleFileNameA(NULL, buf, MAX_PATH);
+        pathStr = buf;
+    }
+    base_path = fileop::dirname(pathStr);
+    base_path = str_util::str_replace(base_path, "/", "\\");
+}
+
+VFS::~VFS() {
+    for (auto file : handles) {
+        zip_fclose((zip_file_t*)file.first);
+    }
+    for (auto archive : archives) {
+        zip_close(archive);
+    }
+}
+
+bool VFS::AddArchive(std::string path) {
+    zip_t* archive = zip_open(path.c_str(), ZIP_RDONLY, nullptr);
+    if (!archive) return false;
+    archives.push_back(archive);
+    auto len = zip_get_num_entries(archive, 0);
+    for (zip_int64_t i = 0; i < len; i++) {
+        struct zip_stat st;
+        zip_stat_init(&st);
+        zip_stat_index(archive, i, 0, &st);
+        // Skip directories/folders (directory entries usually end with a '/')
+        if (st.name[strlen(st.name) - 1] == '/') {
+            continue;
+        }
+        std::string name = st.name;
+        name = str_util::str_replace(name, "/", "\\");
+        files[name] = st.size;
+    }
+    return true;
+}
+
+bool VFS::ContainsFile(std::string path) {
+    path = str_util::str_replace(path, "/", "\\");
+    if (fileop::isabs(path)) {
+        path = fileop::relpath(path, base_path);
+    }
+    return files.find(path) != files.end();
+}
+
+bool VFS::ContainsFile(std::wstring path) {
+    std::string str;
+    if (!wchar_util::wstr_to_str(str, path, CP_UTF8)) {
+        return false;
+    }
+    return ContainsFile(str);
+}
+
+bool VFS::ContainsHandle(HANDLE hFile) {
+    return handles.find(hFile) != handles.end();
+}
+
+HANDLE VFS::CreateFileW(std::wstring path) {
+    std::string str;
+    if (!wchar_util::wstr_to_str(str, path, CP_UTF8)) {
+        SetLastError(ERROR_INVALID_PARAMETER);
+        return INVALID_HANDLE_VALUE;
+    }
+    str = fileop::relpath(str, base_path);
+    str = str_util::str_replace(str, "\\", "/");
+    zip_t* archive = nullptr;
+    zip_uint64_t index = 0;
+    for (auto a : archives) {
+        if (zip_name_locate(a, str.c_str(), 0) != -1) {
+            archive = a;
+            break;
+        }
+    }
+    if (!archive) {
+        SetLastError(ERROR_FILE_NOT_FOUND);
+        return INVALID_HANDLE_VALUE;
+    }
+    index = zip_name_locate(archive, str.c_str(), 0);
+    zip_file_t* file = zip_fopen_index(archive, index, 0);
+    handles[(HANDLE)file] = str;
+    return (HANDLE)file;
+}
+
+bool VFS::ReadFile(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead) {
+    if (!ContainsHandle(hFile)) {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return false;
+    }
+    zip_file_t* file = (zip_file_t*)hFile;
+    if (!file) {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return false;
+    }
+    zip_int64_t n = zip_fread(file, lpBuffer, nNumberOfBytesToRead);
+    if (n == -1) {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return false;
+    }
+    if (lpNumberOfBytesRead) {
+        *lpNumberOfBytesRead = n;
+    }
+    return true;
+}
+
+void VFS::CloseHandle(HANDLE hFile) {
+    if (!ContainsHandle(hFile)) {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return;
+    }
+    zip_fclose((zip_file_t*)hFile);
+    handles.erase(hFile);
+}
+
+DWORD VFS::GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh) {
+    auto f = handles.find(hFile);
+    if (f == handles.end()) {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return INVALID_FILE_SIZE;
+    }
+    auto data = *f;
+    auto name = data.second;
+    auto size = files[name];
+    if (lpFileSizeHigh) {
+        *lpFileSizeHigh = size >> 32;
+    }
+    return size;
+}
+
+DWORD VFS::SetFilePointer(HANDLE hFile, LONG lDistanceToMove, PLONG lpDistanceToMoveHigh, DWORD dwMoveMethod) {
+    if (!ContainsHandle(hFile)) {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return INVALID_SET_FILE_POINTER;
+    }
+    zip_file_t* file = (zip_file_t*)hFile;
+    if (!file) {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return INVALID_SET_FILE_POINTER;
+    }
+    zip_int64_t n = zip_fseek(file, lDistanceToMove, dwMoveMethod);
+    if (n == -1) {
+        SetLastError(ERROR_INVALID_HANDLE);
+        return INVALID_SET_FILE_POINTER;
+    }
+    return n;
+}
+
+std::string VFS::GetBasePath() {
+    return base_path;
+}

vfs.hpp

@@ -0,0 +1,26 @@
+#include "zip.h"
+#include <list>
+#include <string>
+#include <unordered_map>
+#include <Windows.h>
+
+class VFS {
+    public:
+        VFS();
+        ~VFS();
+        bool AddArchive(std::string path);
+        bool ContainsFile(std::string path);
+        bool ContainsFile(std::wstring path);
+        bool ContainsHandle(HANDLE hFile);
+        HANDLE CreateFileW(std::wstring path);
+        bool ReadFile(HANDLE hFile, LPVOID lpBuffer, DWORD nNumberOfBytesToRead, LPDWORD lpNumberOfBytesRead);
+        void CloseHandle(HANDLE hFile);
+        DWORD GetFileSize(HANDLE hFile, LPDWORD lpFileSizeHigh);
+        DWORD SetFilePointer(HANDLE hFile, LONG lDistanceToMove, PLONG lpDistanceToMoveHigh, DWORD dwMoveMethod);
+        std::unordered_map<std::string, zip_uint64_t> files;
+        std::string GetBasePath();
+    private:
+        std::string base_path;
+        std::list<zip_t*> archives;
+        std::unordered_map<HANDLE, std::string> handles;
+};