zlib | Ruby interface for the zlib compression | Compression library

 by   ruby C Version: Current License: Non-SPDX

kandi X-RAY | zlib Summary

kandi X-RAY | zlib Summary

zlib is a C library typically used in Utilities, Compression applications. zlib has low support. However zlib has 1 bugs, it has 4 vulnerabilities and it has a Non-SPDX License. You can download it from GitHub.

This module provides access to the zlib library. Zlib is designed to be a portable, free, general-purpose, legally unencumbered -- that is, not covered by any patents -- lossless data-compression library for use on virtually any computer hardware and operating system. The zlib compression library provides in-memory compression and decompression functions, including integrity checks of the uncompressed data. The zlib compressed data format is described in RFC 1950, which is a wrapper around a deflate stream which is described in RFC 1951. The library also supports reading and writing files in gzip (.gz) format with an interface similar to that of IO. The gzip format is described in RFC 1952 which is also a wrapper around a deflate stream. The zlib format was designed to be compact and fast for use in memory and on communications channels. The gzip format was designed for single-file compression on file systems, has a larger header than zlib to maintain directory information, and uses a different, slower check method than zlib. See your system's zlib.h for further information about zlib.
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            kandi-support Support

              zlib has a low active ecosystem.
              It has 33 star(s) with 25 fork(s). There are 33 watchers for this library.
              OutlinedDot
              It had no major release in the last 6 months.
              There are 1 open issues and 5 have been closed. On average issues are closed in 197 days. There are 1 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of zlib is current.

            kandi-Quality Quality

              zlib has 1 bugs (0 blocker, 0 critical, 1 major, 0 minor) and 24 code smells.

            kandi-Security Security

              OutlinedDot
              zlib has 4 vulnerability issues reported (2 critical, 2 high, 0 medium, 0 low).
              zlib code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              zlib has a Non-SPDX License.
              Non-SPDX licenses can be open source with a non SPDX compliant license, or non open source licenses, and you need to review them closely before use.

            kandi-Reuse Reuse

              zlib releases are not available. You will need to build from source code and install.
              Installation instructions, examples and code snippets are available.
              It has 2287 lines of code, 157 functions and 6 files.
              It has high code complexity. Code complexity directly impacts maintainability of the code.

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            zlib Key Features

            No Key Features are available at this moment for zlib.

            zlib Examples and Code Snippets

            No Code Snippets are available at this moment for zlib.

            Community Discussions

            QUESTION

            Error ' Invalid ZStream operation ' Delphi 11.0
            Asked 2022-Mar-22 at 05:38

            I recently migrate to Delphi 11.0 this line 'Zip.CopyFrom(Source, 0); generate 'error 'Invalid ZStream operation'

            ...

            ANSWER

            Answered 2022-Mar-22 at 05:38

            It appears to be fixed in 11.1

            Source https://stackoverflow.com/questions/70242669

            QUESTION

            Zlib error when attempting to run npm install or yarn
            Asked 2022-Mar-18 at 14:08

            I have just made some pulls from my library's from GitHub, I was using my windows computer to do the coding in VSCode. The code has no problem, although when I attempt to run npm install or yarn install to get the node_modules and the yarn.lock I get a weird error and the packages don't work. I'm using ZSH as the terminal for my Mac.

            This is the error output:

            ...

            ANSWER

            Answered 2021-Oct-27 at 17:48

            After facing similar issues on some of our workstations, I would say that it definitely looks like a bug in Node 14.18.x on m1 Macs and/or Big Sur (even though node itself is compiled for x86_64). I suspect a linking issue with the zlib library, but this is a discussion for Node's issue tracker...

            So here's my suggestion: uninstall Node 14.18.x and try using Node 14.17.x instead.

            As a side note, you may find it useful to first install nvm. nvm allows to quickly install several versions of Node, and switch from one to the other. For example, you might do:

            Source https://stackoverflow.com/questions/69452504

            QUESTION

            Z_DATA_ERROR, ERRNO -3, zlib: incorrect data check, MBA M1
            Asked 2022-Mar-17 at 00:11

            Recently I face an issues to install my dependencies using latest Node and NPM on my MacBook Air M1 machine. Then I found out M1 is not supported latest Node version. So my solution, to using NVM and change them to Node v14.16

            Everything works well, but when our team apply new eslint configuration. Yet, I still not sure whether eslint was causes the error or not.

            .eslintrc ...

            ANSWER

            Answered 2022-Mar-17 at 00:11

            I had a similar problem with another module.

            The solution I found was to update both node (to v16) and npm (to v8).

            For Node, I used brew (but nvm should be OK).

            For npm, I used what the official doc says :

            npm install -g npm@latest

            Source https://stackoverflow.com/questions/69793334

            QUESTION

            NPM install task failing in Azure Devops, same code worked previously
            Asked 2022-Mar-12 at 12:38

            I have yaml pipeline running a build in Azure Devops. The Npm@1 task has started failing this morning. npm install works locally with npm version 6.14.5 and it's all green lights on npm Status.

            ...

            ANSWER

            Answered 2021-Dec-02 at 13:14

            I still don't know why this started failing all of a sudden but I have resolved the problem by updating node-sass to version 6.0.1.

            Source https://stackoverflow.com/questions/70199030

            QUESTION

            I can't modify webpack.config in create-react-app to install react-pdf
            Asked 2022-Mar-11 at 06:31

            Help me install the react-pdf package (https://github.com/diegomura/react-pdf) on create react app. I can't make changes to webpack.config. I do it according to the instructions I found here from the user River Twilight: How to update webpack config for a react project created using create-react-app?

            According to the instructions of installing react-pdf

            1. I run npm install process browserify-zlib stream-browserify util buffer assert
            2. Created config-override.js in project root folder
            3. Next you need to insert the following lines into the config:

            ...

            ANSWER

            Answered 2022-Feb-28 at 00:46

            These errors seems to have happened due to react-scripts v5. Took me a day to figure out a solution while using react-router v5. But it seems the best approach for now is to stay on, or revert back to v4.0.3 until v5 adds back support for node built-ins #11764 is merged and released.

            This issue on Github might help.

            Source https://stackoverflow.com/questions/70729090

            QUESTION

            Orocommerce composer install failed
            Asked 2022-Mar-05 at 14:55

            when i try to install community version of Orocommerce, but i whem excecute next command: composer install --prefer-dist --no-dev after few minutes process stop and return next error:

            ...

            ANSWER

            Answered 2022-Mar-05 at 14:55

            Thanks, the error happens for having Node 16. With NodeJs 14.0 working orocommerce 4.1.1!

            Source https://stackoverflow.com/questions/69080215

            QUESTION

            How to install local package with conda
            Asked 2022-Feb-05 at 04:16

            I have a local python project called jive that I would like to use in an another project. My current method of using jive in other projects is to activate the conda env for the project, then move to my jive directory and use python setup.py install. This works fine, and when I use conda list, I see everything installed in the env including jive, with a note that jive was installed using pip.

            But what I really want is to do this with full conda. When I want to use jive in another project, I want to just put jive in that projects environment.yml.

            So I did the following:

            1. write a simple meta.yaml so I could use conda-build to build jive locally
            2. build jive with conda build .
            3. I looked at the tarball that was produced and it does indeed contain the jive source as expected
            4. In my other project, add jive to the dependencies in environment.yml, and add 'local' to the list of channels.
            5. create a conda env using that environment.yml.

            When I activate the environment and use conda list, it lists all the dependencies including jive, as desired. But when I open python interpreter, I cannot import jive, it says there is no such package. (If use python setup.py install, I can import it.) How can I fix the build/install so that this works?

            Here is the meta.yaml, which lives in the jive project top level directory:

            ...

            ANSWER

            Answered 2022-Feb-05 at 04:16

            The immediate error is that the build is generating a Python 3.10 version, but when testing Conda doesn't recognize any constraint on the Python version, and creates a Python 3.9 environment.

            I think the main issue is that python >=3.5 is only a valid constraint when doing noarch builds, which this is not. That is, once a package builds with a given Python version, the version must be constrained to exactly that version (up through minor). So, in this case, the package is built with Python 3.10, but it reports in its metadata that it is compatible with all versions of Python 3.5+, which simply isn't true because Conda Python packages install the modules into Python-version-specific site-packages (e.g., lib/python-3.10/site-packages/jive).

            Typically, Python versions are controlled by either the --python argument given to conda-build or a matrix supplied by the conda_build_config.yaml file (see documentation on "Build variants").

            Try adjusting the meta.yaml to something like

            Source https://stackoverflow.com/questions/70705250

            QUESTION

            Is there any workaround for .Net 6 System.IO.Compression issue. DeflateStream.Read method works incorrect in .Net 6, but works fine in older versions
            Asked 2022-Jan-25 at 08:42

            Here is the code from the real project, adopted for the question, so some data is hardcoded:

            ...

            ANSWER

            Answered 2022-Jan-25 at 08:42

            There was a breaking change to the way DeflateStream operates in .NET 6. You can read more about it and the recommended actions in this Microsoft documentation.

            Basically, you need to wrap the .Read operation and check the length read versus the expected length because the operation may now return before reading the full length. Your code might look like this (based on the example in the documentation):

            Source https://stackoverflow.com/questions/70845115

            QUESTION

            getifaddrs returning 'bad file descriptor'/crashing the application
            Asked 2022-Jan-18 at 10:47

            In my program, I have a thread which has to continuously monitor the network interfaces therefore it continuosly uses getifaddrs() in a while loop.

            ...

            ANSWER

            Answered 2021-Dec-06 at 08:59

            According to man7.org getifaddrs, any of the socket operations could be a cause for EBADF

            ERRORS

            getifaddrs() may fail and set errno for any of the errors specified for socket(2), bind(2), getsockname(2), recvmsg(2), sendto(2), malloc(3), or realloc(3).

            Unrelated, but do you do freeifaddrs() somewhere?

            Source https://stackoverflow.com/questions/70242848

            QUESTION

            Paramiko authentication fails with "Agreed upon 'rsa-sha2-512' pubkey algorithm" (and "unsupported public key algorithm: rsa-sha2-512" in sshd log)
            Asked 2022-Jan-13 at 14:49

            I have a Python 3 application running on CentOS Linux 7.7 executing SSH commands against remote hosts. It works properly but today I encountered an odd error executing a command against a "new" remote server (server based on RHEL 6.10):

            encountered RSA key, expected OPENSSH key

            Executing the same command from the system shell (using the same private key of course) works perfectly fine.

            On the remote server I discovered in /var/log/secure that when SSH connection and commands are issued from the source server with Python (using Paramiko) sshd complains about unsupported public key algorithm:

            userauth_pubkey: unsupported public key algorithm: rsa-sha2-512

            Note that target servers with higher RHEL/CentOS like 7.x don't encounter the issue.

            It seems like Paramiko picks/offers the wrong algorithm when negotiating with the remote server when on the contrary SSH shell performs the negotiation properly in the context of this "old" target server. How to get the Python program to work as expected?

            Python code

            ...

            ANSWER

            Answered 2022-Jan-13 at 14:49

            Imo, it's a bug in Paramiko. It does not handle correctly absence of server-sig-algs extension on the server side.

            Try disabling rsa-sha2-* on Paramiko side altogether:

            Source https://stackoverflow.com/questions/70565357

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            CVE-2016-9843 CRITICAL
            The crc32_big function in crc32.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving big-endian CRC calculation.
            The inflateMark function in inflate.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact via vectors involving left shifts of negative integers.
            CVE-2016-9841 CRITICAL
            inffast.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.
            inftrees.c in zlib 1.2.8 might allow context-dependent attackers to have unspecified impact by leveraging improper pointer arithmetic.

            Install zlib

            Add this line to your application's Gemfile:.

            Support

            Bug reports and pull requests are welcome on GitHub at https://github.com/ruby/zlib.
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            gh repo clone ruby/zlib

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            git@github.com:ruby/zlib.git

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