119 lines
3.0 KiB
C++
119 lines
3.0 KiB
C++
/*
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Created on: Nov 23, 2018
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Copyright 2018 flyinghead
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This file is part of reicast.
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reicast is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 2 of the License, or
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(at your option) any later version.
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reicast is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with reicast. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "ZipArchive.h"
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ZipArchive::~ZipArchive()
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{
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zip_close(zip);
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}
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bool ZipArchive::Open(FILE *file)
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{
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zip_error_t error;
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zip_source_t *source = zip_source_filep_create(file, 0, -1, &error);
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if (source == nullptr)
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{
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std::fclose(file);
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return false;
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}
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zip = zip_open_from_source(source, 0, nullptr);
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if (zip == nullptr)
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zip_source_free(source);
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return zip != nullptr;
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}
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ArchiveFile* ZipArchive::OpenFile(const char* name)
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{
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zip_file_t *zip_file = zip_fopen(zip, name, 0);
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if (zip_file == nullptr)
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return nullptr;
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zip_stat_t stat;
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zip_stat(zip, name, 0, &stat);
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return new ZipArchiveFile(zip_file, stat.size, stat.name);
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}
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static zip_file *zip_fopen_by_crc(zip_t *za, u32 crc, int flags, zip_uint64_t& index)
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{
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if (crc == 0)
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return nullptr;
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zip_int64_t n = zip_get_num_entries(za, 0);
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for (index = 0; index < (zip_uint64_t)n; index++)
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{
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zip_stat_t stat;
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if (zip_stat_index(za, index, flags, &stat) < -1)
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return nullptr;
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if (stat.crc == crc)
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return zip_fopen_index(za, index, flags);
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}
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return nullptr;
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}
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ArchiveFile* ZipArchive::OpenFileByCrc(u32 crc)
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{
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zip_uint64_t index;
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zip_file_t *zip_file = zip_fopen_by_crc(zip, crc, 0, index);
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if (zip_file == nullptr)
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return nullptr;
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zip_stat_t stat;
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zip_stat_index(zip, index, 0, &stat);
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return new ZipArchiveFile(zip_file, stat.size, stat.name);
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}
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u32 ZipArchiveFile::Read(void* buffer, u32 length)
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{
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return zip_fread(zip_file, buffer, length);
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}
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bool ZipArchive::Open(const void *data, size_t size)
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{
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zip_error_t error;
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zip_source_t *source = zip_source_buffer_create(data, size, 0, &error);
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if (source == nullptr)
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return false;
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zip = zip_open_from_source(source, 0, nullptr);
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if (zip == nullptr)
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zip_source_free(source);
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return zip != nullptr;
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}
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ArchiveFile *ZipArchive::OpenFirstFile()
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{
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zip_file_t *zipFile = zip_fopen_index(zip, 0, 0);
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if (zipFile == nullptr)
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return nullptr;
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zip_stat_t stat;
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zip_stat_index(zip, 0, 0, &stat);
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return new ZipArchiveFile(zipFile, stat.size, stat.name);
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}
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ArchiveFile *ZipArchive::OpenFileByIndex(size_t index)
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{
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zip_file_t *zipFile = zip_fopen_index(zip, index, 0);
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if (zipFile == nullptr)
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return nullptr;
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zip_stat_t stat;
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zip_stat_index(zip, index, 0, &stat);
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return new ZipArchiveFile(zipFile, stat.size, stat.name);
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}
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