WriteDisk

Example: Constructing Objects On Disk:

public static int main (string[] args) {
		Archive.WriteDisk archive = new Archive.WriteDisk ();
		archive.set_options (Archive.ExtractFlags.TIME);

		Archive.Entry entry = new Archive.Entry ();
		entry.set_pathname("my_file.txt");
		entry.set_filetype ((uint)Posix.S_IFREG);
		entry.set_size (5);
		entry.set_mtime (123456789, 0);

		archive.write_header (entry);
		archive.write_data ("abcde".data, 5);
		if (archive.close () != Archive.Result.OK) {
				error ("Error : %s (%d)", archive.error_string (), archive.errno ());
		}

		return 0;
}

valac --pkg libarchive Archive.WriteDisk.0.vala

Example: A Complete Extractor:

public void extract (string filename) {
		// Select which attributes we want to restore.
		Archive.ExtractFlags flags;
		flags = Archive.ExtractFlags.TIME;
		flags |= Archive.ExtractFlags.PERM;
		flags |= Archive.ExtractFlags.ACL;
		flags |= Archive.ExtractFlags.FFLAGS;

		Archive.Read archive = new Archive.Read ();
		archive.support_format_all ();
		archive.support_compression_all ();

		Archive.WriteDisk extractor = new Archive.WriteDisk ();
		extractor.set_options (flags);
		extractor.set_standard_lookup ();

		if (archive.open_filename (filename, 10240) != Archive.Result.OK) {
				critical ("Error opening %s: %s (%d)", filename, archive.error_string (), archive.errno ());
				return;
		}

		unowned Archive.Entry entry;
		Archive.Result last_result;
		while ((last_result = archive.next_header (out entry)) == Archive.Result.OK) {
				if (extractor.write_header (entry) != Archive.Result.OK) {
						continue;
				}

				void* buffer = null;
				size_t buffer_length;
				Posix.off_t offset;
				while (archive.read_data_block (out buffer, out buffer_length, out offset) == Archive.Result.OK) {
						if (extractor.write_data_block (buffer, buffer_length, offset) != Archive.Result.OK) {
								break;
						}
				}
		}

		if (last_result != Archive.Result.EOF) {
				critical ("Error: %s (%d)", archive.error_string (), archive.errno ());
		}
}

public static int main (string[] args) {
		for (int i = 1; i < args.length; i++) {
				extract (args[i]);
		}

		return 0;
}

valac --pkg libarchive Archive.WriteDisk.1.vala