Method writeHeader

src/bin/zip/ZipMaker.java:229–272

(CenterFileHeader header)

    }

    private void writeHeader(CenterFileHeader header) throws IOException {
        setupNeedZip64(header);

        _writeInt(LFH_SIG);
        _writeShort(header.version());
        _writeShort(header.generalPurposeFlag);
        _writeShort(header.method);
        _writeInt(header.time);
        _writeInt(header.crc);
        if (header.sizeNeedZip64) {
            _writeUInt(MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE);
            _writeUInt(MAX_ZIP_ENTRY_AND_ARCHIVE_SIZE);
        } else {
            _writeUInt(header.compressedSize);
            _writeUInt(header.size);
        }
        _writeShort(header.name.length);

        byte[] extra;
        if (header.sizeNeedZip64) {
            byte[] data = new byte[2 * 8];
            ZipUtil.writeLong(data, 0, header.size);
            ZipUtil.writeLong(data, 8, header.compressedSize);
            extra = ExtraDataRecord.set(header.extra, ZIP64_EXTENDED_INFO_HEADER_ID, data);
        } else {
            extra = ExtraDataRecord.remove(header.extra, ZIP64_EXTENDED_INFO_HEADER_ID);
        }
        // zipAlign
        if (header.method == METHOD_STORED) {
            int alignment;
            if (header.isHost || new String(header.name, ZipConstant.UTF_8).endsWith(".so")) {
                // -p: memory page alignment for stored shared object files
                alignment = 4096;
            } else {
                alignment = 4;
            }
            long extraDataOffset = _getFilePointer() + 2 + header.name.length;
            extra = align(alignment, extra, extraDataOffset);
        }
        _writeShort(extra.length);
        _writeBytes(header.name);

        _writeBytes(extra);
    }

    private void setupNeedZip64(CenterFileHeader header) {
        if (forceZip64) {