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author | Andrei Karas <akaras@inbox.ru> | 2017-10-10 22:14:45 +0300 |
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committer | Andrei Karas <akaras@inbox.ru> | 2017-10-10 22:15:57 +0300 |
commit | aa3f63fd497558a02feb3ddbc44f31eac091f39b (patch) | |
tree | 0e28b9b1f0501dd8be9e1a38db4ec1777fa3fbfa /src/fs/virtfs/zipreader.cpp | |
parent | 7c10a6b61e9d06a4ae9cc9f942dfacb6fcfd9d3d (diff) | |
download | plus-aa3f63fd497558a02feb3ddbc44f31eac091f39b.tar.gz plus-aa3f63fd497558a02feb3ddbc44f31eac091f39b.tar.bz2 plus-aa3f63fd497558a02feb3ddbc44f31eac091f39b.tar.xz plus-aa3f63fd497558a02feb3ddbc44f31eac091f39b.zip |
Remove most unused files.
Diffstat (limited to 'src/fs/virtfs/zipreader.cpp')
-rw-r--r-- | src/fs/virtfs/zipreader.cpp | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/src/fs/virtfs/zipreader.cpp b/src/fs/virtfs/zipreader.cpp deleted file mode 100644 index 2d473bec7..000000000 --- a/src/fs/virtfs/zipreader.cpp +++ /dev/null @@ -1,334 +0,0 @@ -/* - * The ManaPlus Client - * Copyright (C) 2017 The ManaPlus Developers - * - * This file is part of The ManaPlus Client. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - */ - -#include "fs/virtfs/zipreader.h" - -#include "fs/paths.h" - -#include "fs/virtfs/zipentry.h" -#include "fs/virtfs/ziplocalheader.h" - -#include "utils/cast.h" -#include "utils/checkutils.h" -#include "utils/delete2.h" -#include "utils/stringutils.h" - -#include <zlib.h> -PRAGMA48(GCC diagnostic push) -PRAGMA48(GCC diagnostic ignored "-Wshadow") -#include <SDL_endian.h> -PRAGMA48(GCC diagnostic pop) - -#include "debug.h" - -#ifndef SDL_BIG_ENDIAN -#error missing SDL_endian.h -#endif // SDL_BYTEORDER - -// #define DEBUG_ZIP - -extern const char *dirSeparator; - -#define readVal(val, sz, msg) \ - cnt = fread(static_cast<void*>(val), 1, sz, arcFile); \ - if (cnt != sz) \ - { \ - reportAlways("Error reading " msg " in file %s", \ - archiveName.c_str()); \ - delete2(header); \ - delete [] buf; \ - fclose(arcFile); \ - return false; \ - } - -#if SDL_BYTEORDER == SDL_BIG_ENDIAN -#define swapVal16(val) val = __builtin_bswap16(val); -#define swapVal32(val) val = __builtin_bswap32(val); -#else // SDL_BYTEORDER == SDL_BIG_ENDIAN -#define swapVal16(val) -#define swapVal32(val) -#endif // SDL_BYTEORDER == SDL_BIG_ENDIAN - -namespace VirtFs -{ - -namespace ZipReader -{ - bool readArchiveInfo(ZipEntry *const entry) - { - if (entry == nullptr) - { - reportAlways("Entry is null."); - return false; - } - const std::string archiveName = entry->root; - STD_VECTOR<ZipLocalHeader*> &restrict headers = entry->mHeaders; - STD_VECTOR<std::string> &restrict dirs = entry->mDirs; - FILE *restrict const arcFile = fopen(archiveName.c_str(), - "rb"); - if (arcFile == nullptr) - { - reportAlways("Can't open zip file %s", - archiveName.c_str()); - return false; - } - uint8_t *const buf = new uint8_t[65535 + 10]; - uint16_t val16 = 0U; - uint16_t method = 0U; - ZipLocalHeader *header = nullptr; - -#ifdef DEBUG_ZIP - logger->log("Read archive: %s", archiveName.c_str()); -#endif // DEBUG_ZIP - - // format source https://en.wikipedia.org/wiki/Zip_%28file_format%29 - while (feof(arcFile) == 0) - { - size_t cnt = 0U; - // file header pointer on 0 - // read file header signature - readVal(buf, 4, "zip file header"); // + 4 - // pointer on 4 - - if (buf[0] == 0x50 && - buf[1] == 0x4B && - buf[2] == 0x03 && - buf[3] == 0x04) - { // local file header - header = new ZipLocalHeader; - header->zipEntry = entry; - // skip useless fields - fseek(arcFile, 4, SEEK_CUR); // + 4 - // file header pointer on 8 - readVal(&method, 2, "compression method") // + 2 - swapVal16(method) - header->compressed = (method != 0); - // file header pointer on 10 - fseek(arcFile, 8, SEEK_CUR); // + 8 - // file header pointer on 18 - readVal(&header->compressSize, 4, - "zip compressed size") // + 4 - swapVal32(header->compressSize) - // file header pointer on 22 - readVal(&header->uncompressSize, 4, - "zip uncompressed size") // + 4 - swapVal32(header->uncompressSize) - // file header pointer on 26 - readVal(&val16, 2, "file name length") // + 2 - swapVal16(val16) - // file header pointer on 28 - const uint32_t fileNameLen = CAST_U32(val16); - if (fileNameLen > 1000) - { - reportAlways("Error too long file name in file %s", - archiveName.c_str()); - delete header; - delete [] buf; - fclose(arcFile); - return false; - } - readVal(&val16, 2, "extra field length") // + 2 - swapVal16(val16) - // file header pointer on 30 - const uint32_t extraFieldLen = CAST_U32(val16); - readVal(buf, fileNameLen, "file name"); - // file header pointer on 30 + fileNameLen - buf[fileNameLen] = 0; - header->fileName = std::string( - reinterpret_cast<char*>(buf)); - prepareFsPath(header->fileName); - header->dataOffset = CAST_S32(ftell(arcFile) + extraFieldLen); - fseek(arcFile, extraFieldLen + header->compressSize, SEEK_CUR); - // pointer on 30 + fileNameLen + extraFieldLen + compressSize - if (findLast(header->fileName, dirSeparator) == false) - { - headers.push_back(header); -#ifdef DEBUG_ZIP - logger->log(" file name: %s", - header->fileName.c_str()); - logger->log(" compression method: %u", - CAST_U32(method)); - logger->log(" compressed size: %u", - header->compressSize); - logger->log(" uncompressed size: %u", - header->uncompressSize); -#endif // DEBUG_ZIP - } - else - { -#ifdef DEBUG_ZIP - logger->log(" dir name: %s", - header->fileName.c_str()); -#endif // DEBUG_ZIP - dirs.push_back(header->fileName); - delete header; - } - } - else if (buf[0] == 0x50 && - buf[1] == 0x4B && - buf[2] == 0x01 && - buf[3] == 0x02) - { // central directory file header - // !!! This is quick way for read zip archives. !!! - // !!! It ignore modified files in archive. !!! - // ignoring central directory entries - break; - } - else if (buf[0] == 0x50 && - buf[1] == 0x4B && - buf[2] == 0x05 && - buf[3] == 0x06) - { // end of central directory - // !!! This is quick way for read zip archives. !!! - // !!! It ignore modified files in archive. !!! - // ignoring end of central directory - break; - } - else - { - reportAlways("Error in header signature (0x%02x%02x%02x%02x)" - " in file %s", - buf[0], - buf[1], - buf[2], - buf[3], - archiveName.c_str()); - delete [] buf; - fclose(arcFile); - return false; - } - } - delete [] buf; - fclose(arcFile); - return true; - } - - void reportZlibError(const std::string &text, - const int err) - { - reportAlways("Zlib error: '%s' in %s", - text.c_str(), - getZlibError(err).c_str()); - } - - std::string getZlibError(const int err) - { - switch (err) - { - case Z_OK: - return std::string(); - default: - return "unknown zlib error"; - } - } - - uint8_t *readCompressedFile(const ZipLocalHeader *restrict const header) - { - if (header == nullptr) - { - reportAlways("ZipReader::readCompressedFile: header is null"); - return nullptr; - } - FILE *restrict const arcFile = fopen( - header->zipEntry->root.c_str(), - "rb"); - if (arcFile == nullptr) - { - reportAlways("Can't open zip file %s", - header->zipEntry->root.c_str()); - return nullptr; - } - - fseek(arcFile, header->dataOffset, SEEK_SET); - const uint32_t compressSize = header->compressSize; - uint8_t *const buf = new uint8_t[compressSize]; - if (fread(static_cast<void*>(buf), 1, compressSize, arcFile) != - compressSize) - { - reportAlways("Read zip compressed file error from archive: %s", - header->zipEntry->root.c_str()); - fclose(arcFile); - delete [] buf; - return nullptr; - } - fclose(arcFile); - return buf; - } - - const uint8_t *readFile(const ZipLocalHeader *restrict const header) - { - if (header == nullptr) - { - reportAlways("Open zip file error. header is null."); - return nullptr; - } - uint8_t *restrict const in = readCompressedFile(header); - if (in == nullptr) - return nullptr; - if (header->compressed == false) - return in; // return as is if data not compressed - const size_t outSize = header->uncompressSize; - uint8_t *restrict const out = new uint8_t[outSize]; - if (outSize == 0) - { - delete [] in; - return out; - } - - z_stream strm; - strm.zalloc = nullptr; - strm.zfree = nullptr; - strm.opaque = nullptr; - strm.next_in = in; - strm.avail_in = header->compressSize; - strm.next_out = out; - strm.avail_out = CAST_U32(outSize); - -PRAGMACLANG6GCC(GCC diagnostic push) -PRAGMACLANG6GCC(GCC diagnostic ignored "-Wold-style-cast") - int ret = inflateInit2(&strm, -MAX_WBITS); -PRAGMACLANG6GCC(GCC diagnostic pop) - - if (ret != Z_OK) - { - reportZlibError(header->zipEntry->root, ret); - delete [] in; - delete [] out; - return nullptr; - } - ret = inflate(&strm, Z_FINISH); -// ret = inflate(&strm, Z_SYNC_FLUSH); - if (ret != Z_OK && - ret != Z_STREAM_END) - { - reportZlibError("file decompression error", - ret); - inflateEnd(&strm); - delete [] in; - delete [] out; - return nullptr; - } - inflateEnd(&strm); - delete [] in; - return out; - } -} // namespace ZipReader - -} // namespace VirtFs |