linux c++ 压缩 zip

您可以使用 zlib 库来进行压缩和解压缩操作。zlib 是一个开源的压缩库，支持多种压缩算法，包括 deflate、gzip 和 zlib 等。在 Linux 系统中，您可以使用以下命令安装 zlib 库：

sudo apt-get install zlib1g-dev

然后，您可以使用以下代码来进行压缩和解压缩操作：

#include <iostream>
#include <fstream>
#include <cstring>
#include <zlib.h>

using namespace std;

// 压缩函数
bool compressFile(const char* srcFile, const char* dstFile)
{
    ifstream fin(srcFile, ios::binary);
    if (!fin)
    {
        cout << "Failed to open source file!" << endl;
        return false;
    }

    ofstream fout(dstFile, ios::binary);
    if (!fout)
    {
        cout << "Failed to create destination file!" << endl;
        return false;
    }

    // 初始化 zlib
    z_stream zs;
    memset(&zs, 0, sizeof(zs));
    if (deflateInit(&zs, Z_DEFAULT_COMPRESSION) != Z_OK)
    {
        cout << "Failed to initialize zlib!" << endl;
        return false;
    }

    // 压缩数据
    char buffer[1024];
    while (!fin.eof())
    {
        fin.read(buffer, sizeof(buffer));
        zs.avail_in = fin.gcount();
        zs.next_in = reinterpret_cast<Bytef*>(buffer);

        do
        {
            zs.avail_out = sizeof(buffer);
            zs.next_out = reinterpret_cast<Bytef*>(buffer);

            if (deflate(&zs, Z_FINISH) == Z_STREAM_ERROR)
            {
                cout << "Failed to compress data!" << endl;
                deflateEnd(&zs);
                return false;
            }

            fout.write(buffer, sizeof(buffer) - zs.avail_out);
        } while (zs.avail_out == 0);
    }

    // 结束压缩
    deflateEnd(&zs);

    fin.close();
    fout.close();

    return true;
}

// 解压缩函数
bool decompressFile(const char* srcFile, const char* dstFile)
{
    ifstream fin(srcFile, ios::binary);
    if (!fin)
    {
        cout << "Failed to open source file! << endl;
        return false;
    }

    ofstream fout(dstFile, ios::binary);
    if (!fout)
    {
        cout << "Failed to create destination file!" << endl;
        return false;
    }

    // 初始化 zlib
    z_stream zs;
    memset(&zs, 0, sizeof(zs));
    if (inflateInit(&zs) != Z_OK)
    {
        cout << "Failed to initialize zlib!" << endl;
        return false;
    }

    // 解压数据
    char buffer[1024];
    while (!fin.eof())
    {
        fin.read(buffer, sizeof(buffer));
        zs.avail_in = fin.gcount();
        zs.next_in = reinterpret_cast<Bytef*>(buffer);

        do
        {
            zs.avail_out = sizeof(buffer);
            zs.next_out = reinterpret_cast<Bytef*>(buffer);

            if (inflate(&zs, Z_NO_FLUSH) == Z_STREAM_ERROR)
            {
                cout << "Failed to decompress data!" << endl;
                inflateEnd(&zs);
                return false;
            }

            fout.write(buffer, sizeof(buffer) - zs.avail_out);
        } while (zs.avail_out == 0);
    }

    // 结束解压
    inflateEnd(&zs);

    fin.close();
    fout.close();

    return true;
}

int main()
{
    const char* srcFile = "test.txt";
    const char* zipFile = "test.zip";
    const char* dstFile = "test_copy.txt";

    // 压缩文件
    if (compressFile(srcFile, zipFile))
    {
        cout << "Compress file success!" << endl;
    }
    else
    {
        cout << "Compress file failed!" << endl;
        return -1;
    }

    // 解压文件
    if (decompressFile(zipFile, dstFile))
    {
        cout << "Decompress file success!" << endl;
    }
    else
    {
        cout << "Decompress file failed!" << endl;
        return -1;
    }

    return 0;
}