Get an FTP Listing Entry's Group

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Demonstrates the Chilkat Ftp2.GetGroup method, which returns the group name or identifier of a cached directory-listing entry. The only argument is a zero-based index. The value is empty when the server does not provide group metadata.

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

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

    // Demonstrates the Ftp2.GetGroup method, which returns the group name or identifier of a cached
    // directory-listing entry.  The only argument is a zero-based index.

    const ftp = try chilkat.Ftp2.init();
    defer ftp.deinit();

    ftp.setHostname("ftp.example.com");
    ftp.setUsername("myFtpLogin");

    // Normally you would not hard-code the password in source.  You should instead obtain it
    // from an interactive prompt, environment variable, or a secrets vault.
    ftp.setPassword("myPassword");

    ftp.connect() catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    ftp.changeRemoteDir("public_html") catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };

    // GetDirCount retrieves the directory listing on the first call and returns the number of
    // entries.  A negative return indicates failure.
    const n = ftp.getDirCount();
    if (n < 0) {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    }

    var i: i32 = 0;
    i = 0;
    while (i < n) : (i += 1) {
        const name = try ftp.getFilename(alloc, i);

        // The group is empty when the server does not provide group metadata.
        const group = try ftp.getGroup(alloc, i);
        std.debug.print("{s}  {s}\n", .{ group, name });
    }

    ftp.disconnect() catch {
        std.debug.print("{s}\n", .{try ftp.getLastErrorText(alloc)});
        return;
    };
}