Your AWS Lambda function's code consists of scripts or compiled programs and their dependencies. You use a deployment package to deploy your function code to Lambda. Lambda supports two types of deployment packages: container images and .zip file archives.
To create the deployment package for a .zip file archive, you can use a built-in .zip file archive utility or any other .zip file utility (such as 7zip) for your command line tool. Note the following requirements for using a .zip file as your deployment package:
The .zip file contains your function's code and any dependencies used to run your function's code (if applicable) on Lambda. If your function depends only on standard libraries, or AWS SDK libraries, you don't need to include these libraries in your .zip file. These libraries are included with the supported Lambda runtime environments.
If your function's code is in Python 3.8 or later, and it depends only on standard Python math and logging libraries, you don't need to include the libraries in your .zip file. These libraries are included with the Python runtime.
To deploy the new code to your function, you upload the new .zip file deployment package. You can use the Lambda console to upload a .zip file to the function, or you can use the UpdateFunctionCode CLI command.
ZIP files generally use the file extensions .mw-parser-output .monospacedfont-family:monospace,monospace.zip or .ZIP and the MIME media type application/zip. ZIP is used as a base file format by many programs, usually under a different name. When navigating a file system via a user interface, graphical icons representing ZIP files often appear as a document or other object prominently featuring a zipper.
WinZip, starting with version 12.1, uses the extension .zipx for ZIP files that use compression methods newer than DEFLATE; specifically, methods BZip, LZMA, PPMd, Jpeg and Wavpack. The last 2 are applied to appropriate file types when "Best method" compression is selected.
The File Explorer in Windows XP does not support ZIP64, but the Explorer in Windows Vista and later do. Likewise, some extension libraries support ZIP64, such as DotNetZip, QuaZIP and IO::Compress::Zip in Perl. Python's built-in zipfile supports it since 2.5 and defaults to it since 3.4. OpenJDK's built-in java.util.zip supports ZIP64 from version Java 7. Android Java API support ZIP64 since Android 6.0. Mac OS Sierra's Archive Utility notably does not support ZIP64, and can create corrupt archives when ZIP64 would be required. However, the ditto command shipped with Mac OS will unzip ZIP64 files. More recent[when?] versions of Mac OS ship with info-zip's zip and unzip command line tools which do support Zip64: to verify run zip -v and look for "ZIP64_SUPPORT".
A Seek-Optimized ZIP file (SOZip) profile  has been proposed for the ZIP format. Such file contains one or several Deflate-compressed files that are organized and annotated such that a SOZip-aware reader can perform very fast random access (seek) within a compressed file. SOZip makes it possible to access large compressed files directly from a .zip file without prior decompression. It combines the use of ZLib block flushs issued at regular interval with a hidden index file mapping offsets of the uncompressed file to offsets in the compressed stream. ZIP readers that are not aware of that extension can read a SOZip-enabled file normally and ignore the extended features that support efficient seek capability.
Some development libraries licensed under open source agreement are libzip, libarchive, and Info-ZIP. For Java: Java Platform, Standard Edition contains the package "java.util.zip" to handle standard .ZIP files; the Zip64File library specifically supports large files (larger than 4 GB) and treats .ZIP files using random access; and the Apache Ant tool contains a more complete implementation released under the Apache Software License.
If trailing or unmatched values are important to you, then you can use itertools.zip_longest() instead of zip(). With this function, the missing values will be replaced with whatever you pass to the fillvalue argument (defaults to None). The iteration will continue until the longest iterable is exhausted:
Here, you use itertools.zip_longest() to yield five tuples with elements from letters, numbers, and longest. The iteration only stops when longest is exhausted. The missing elements from numbers and letters are filled with a question mark ?, which is what you specified with fillvalue.
Now open the .zip file that you downloaded earlier from Google Drive. Select all of the files, and drag them to your OneDrive folder. The files will start uploading and syncing to OneDrive for Business, which you can tell by the green check mark.
Following the deployment on the latest Android 6.0 Marshmallow for many Huawei devices like the Honor 7, Ascend Mate 7, Huawei P8 and P8 Lite, G Play Mini, Honor 4C, etc, the Chinese manufacturer has stepped into deploying the same for the popular Huawei GX8 aka the G8. Both the Single SIM variants as well as the Dual SIM variants of the GX8 have been receiving the Android 6.0 firmware update. This will take their firmware build to RIO-L01C432B340 for the Dual SIM variant and RIO L01C432B330 for Single SIM. The EMUI version has changed to 4.0 for the Single SIM with B330. However, it is still EMUI 3.1 for the other. The update is now available in Europe for most of the countries including Spain, Belgium, France, Germany, Italy, Portugal, Estonia, Latvia, Lithuania, etc. This brings many new features, stability and performance improvements, bug fixes, EMUI 4.0, and all the new Android 6.0 Marshmallow goodies. The update comes to the G8 officially. It is a great news for all the Huawei GX8 users looking forward to running the new EMUI 4.0 firmware on their devices. So head over to download below and grab the latest firmware for your device. The file name for the Single SIM Gx8 variant is: GX8_Open Market_Spain_ B330 (Android 6.0, EMUI 4.0).zip and weighs whopping 1.65 GB whereas, that for Dual SIM variant is: Huawei_GX8_Firmware_RIO-L01_Android 6.0.1_EMUI 3.1_C432B340CUSTC432D001_Channel-Others.zip and weighs the same.
I tried to install ESXi5.1 by directly booting from the USB I created, this booted fine however the installation wouldn't proceed due to ESX not having the correct NIC drivers.I downloaded the HP customized version of ESXi5.1 thinking this will have the correct drivers but it didn't, it failed at the same point. So I ended up downloading the .zip depot for this HP version of install, then running through the VMWare PowerCLI software to manually add the VIB's for the NIC's.
Compression bombs that use the zip formatmust cope with the fact that DEFLATE,the compression algorithm most commonly supported by zip parsers,cannot achieve a compression ratio greater than 1032.For this reason, zip bombs typically rely on recursive decompression,nesting zip files within zip files to get an extra factor of 1032 with each layer.But the trick only works on implementations thatunzip recursively, and most do not.The best-known zip bomb,42.zip,expands to a formidable 4.5 PBif all six of its layers are recursively unzipped,but a trifling 0.6 MB at the top layer.Zip quines,like those of Ellingsenand Cox,which contain a copy of themselvesand thus expand infinitely if recursively unzipped,are likewise perfectly safe to unzip once.
The giant-steps feature only pays when you are not constrained by maximum output file size.In zblg.zip, we actually want to slow file growth as much as possibleso that the smallest file, containing the kernel, can be as large as possible.Using giant steps in zblg.zip actually decreases the compression ratio.
Given that the N filenames in the zip fileare generally not all of the same length,which way should we order them,shortest to longest or longest to shortest?A little reflection shows that it is better toput the longest names last, because those names are the most quoted.Ordering filenames longest lastadds over 900 MB of outputto zblg.zip,compared to ordering them longest first.It is a minor optimization, though,as those 900 MBcomprise only 0.0003%of the total output size.
Suppose we want a zip bomb that expands to4.5 PB,the same size that 42.zip recursively expands to.How big must the zip file be?Using binary search, we find that the smallestzip file whose unzipped size exceeds the unzipped size of 42.ziphas a zipped size of46 MB.
A version of this articleappeared at theUSENIX WOOT 2019workshop.The workshop talkvideo, slides, and transcriptare available.The source code of the paper is available.The artifactsprepared for submission are zipbomb-woot19.zip.
zblg.zip renamed to zblg.odt or zblg.docxwill cause LibreOffice tocreate and delete a number of 4 GB temporary filesas it attempts to determine the file format.It does eventually finish, and it deletesthe temporary files as it goes,so it's only a temporary DoS that doesn't fill up the disk.Caolán McNamara replied to my bug report.
Tavis Ormandy points outthat there are a number of "Timeout" results inthe VirusTotal for zblg.zip(screenshot 2019-07-06).AhnLab-V3, ClamAV, DrWeb, Endgame, F-Secure, GData, K7AntiVirus, K7GW, MaxSecure, McAfee, McAfee-GW-Edition, Panda, Qihoo-360, Sophos ML, VBA32.The results for zbsm.zip(screenshot 2019-07-06)are similar, though with a different set of timed-out engines:Baido, Bkav, ClamAV, CMC, DrWeb, Endgame, ESET-NOD32, F-Secure, GData, Kingsoft, McAfee-GW-Edition, NANO-Antivirus, Acronis.Interestingly, there are no timeouts inthe results for zbxl.zip;(screenshot 2019-07-06)perhaps this means that some antivirus doesn't support Zip64?
In ClamAV bug 12356,Hanno Böck reported that zblg.zip caused high CPU usagein clamscan.An initial patchto detect overlapping filesturned out to be incompletebecause it only checked adjacent pairs of files.(I personally mishandled this issueby posting details of a workaround on the bug tracker,instead of reporting it privately.)A later patchimposed a time limit on file analysis. 041b061a72