Zig

Open a Zip Archive

See more Zip Examples

Demonstrates how to open a zip, or an encrypted .zip, or a legacy password-protected .zip. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    const zip = try chilkat.Zip.init();
    defer zip.deinit();

    // Open a non-encrypted .zip
    zip.openZip("qa_data/zips/sample.zip") catch {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Num entries = {d}\n", .{zip.getNumEntries()});

    // ...
    // ...

    zip.closeZip();

    // ----------------------------------------------------------------------------
    // Open an encrypted zip...

    // The two main types of encryption used in ZIP archives are Password-Protected and AES.
    //

    // ---------------------------------------
    // 1. Legacy Password-Protected Zip
    //
    // This is the older and less secure method of encrypting ZIP archives.
    // It provides a basic level of security, but is considered weak by modern standards.
    // It is vulnerable to various attacks, including known-plaintext attacks and brute force attacks.
    // Although Chilkat allows it, you shouldn't create new zip archives using legacy password-protection.

    // ---------------------------------------
    // 2. AES Encrypted Zip
    //
    // AES encryption is a more modern and secure method for encrypting ZIP archives.
    // It provides strong encryption based on the AES algorithm, which is widely regarded as secure.
    // AES supports different key lengths, typically 128-bit, 192-bit, and 256-bit.

    // When opening an encrypted zip, your application only needs to provide the correct password.
    // The information about the type of encryption and the key length (if AES) is already embedded within the encrypted .zip.

    // Provide the decrypt password because we are opening an existing .zip (decrypting)
    zip.setDecryptPassword("thePassword");

    zip.openZip("qa_data/zips/encryptedSamples/ziptest_256.zip") catch {
        std.debug.print("{s}\n", .{try zip.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("Num entries = {d}\n", .{zip.getNumEntries()});

    // ...
    // ...

    zip.closeZip();
}