playpen | secure application sandbox built with modern Linux

by thestinger C Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | playpen Summary

playpen is a C library. playpen has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Playpen is a secure application sandbox built with modern Linux sandboxing features.

Support

Quality

Security

License

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Support

playpen has a low active ecosystem.

It has 291 star(s) with 23 fork(s). There are 21 watchers for this library.

It had no major release in the last 6 months.

playpen has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of playpen is current.

Quality

playpen has no bugs reported.

Security

playpen has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

playpen is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

playpen releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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playpen Key Features

No Key Features are available at this moment for playpen.

playpen Examples and Code Snippets

No Code Snippets are available at this moment for playpen.

Community Discussions

Trending Discussions on playpen

Explain what this c++ bool line mean in this cpp book

Optional spaces \s+? are not honoured in regular expression

Persisted R Model exposed as Web Service returns wrong answer

Pandas 0.19.2 read_excel IndexError: List index out of range

How is create-react-app showing lint errors with "npm start"?

Pushing local docker image to openshift online

SQL: Where clause at 2 places in sql query

Saving rotated image with easeljs?

Rust error E0495 using split_at_mut in a closure

Borrow checker and function arguments in Rust, correct or over zealous?

QUESTION

Explain what this c++ bool line mean in this cpp book

Asked 2020-Sep-01 at 14:04

playpen pp;
bool more(true);    
do{
   display_content();
   int const choice(get_choice));
   more = do_choice(pp, choice);
} while (more)

...

ANSWER

Answered 2020-Sep-01 at 13:34

You're confusing the assignment operator (=) with the comparison operator (==).
The call to do_choice updates more so the loop will stop eventually.

Source https://stackoverflow.com/questions/63688770

QUESTION

Optional spaces \s+? are not honoured in regular expression

Asked 2020-May-29 at 08:18

I am expecting the following regex to allow 0-n spaces between operators, but it is forcing at least one. Can someone please correct the error of my ways?

...

ANSWER

Answered 2020-May-29 at 08:13

+? (or more generally ? following any other quantifier) is a non-greedy quantifier. It does not mean “make the preceding match optional”.

Use * instead of +?.

Source https://stackoverflow.com/questions/62081428

QUESTION

Persisted R Model exposed as Web Service returns wrong answer

Asked 2020-May-23 at 00:34

I am cutting my teeth on exposing an R machine learning classification model as a web service using Plumber and Swagger. I have trained a model and saved it as "j48.model.rda". I am now loading the model in a file called "myFile.R". This file contains the following R code:

...

ANSWER

Answered 2020-May-23 at 00:34

I believe values you receive from the swagger call are still in character class as plumber does not do any conversion of query string parameters.

Before doing as.data.frame, try changing the class of the values in xVals

Source https://stackoverflow.com/questions/61964415

QUESTION

Pandas 0.19.2 read_excel IndexError: List index out of range

Asked 2020-May-21 at 16:37

I am looking to parse an excel spreadsheet. I decided to use pandas but got caught by an error straight off the bat.

I started with the code below but played around with using a full path and also tried setting the sheetname.

...

ANSWER

Answered 2017-Apr-13 at 15:18

If you just want to read the file, it's better to use os.path as follows:

Source https://stackoverflow.com/questions/43395840

QUESTION

How is create-react-app showing lint errors with "npm start"?

Asked 2020-Mar-31 at 04:36

While using create-react-app (with no customizations), and invoking npm start, it appears that linting occurs on individual files as they are saved, and any error or warning output is shown:

I'm trying to reverse-engineer how this is working, but am stuck.

I'm pretty sure it has something to do with husky and/or lint-staged but I haven't been able to replicate this behavior in my (non-sharable) playpen.

I understand how to setup and configure eslint (and I can see errors/warnings when invoking eslint directly), and I've been able to run linting around my Git actions (i.e., pre-commit) using husky and lint-staged, so I feel that I'm close to solving this puzzle, but I still don't get any of this type of output when I invoke webpack-dev-server.

What tooling is used to get eslint output to appear during the create-react-app npm start command?

...

ANSWER

Answered 2020-Mar-31 at 04:36

This is the feature of eslint-loader which is added to the webpack configuration in create-react-app.

Source https://stackoverflow.com/questions/60939330

QUESTION

Pushing local docker image to openshift online

Asked 2020-Mar-18 at 23:26

I have a spring boot application running locally on docker on my machine.

The image name is springio/spring-rest-hello-world and the tag is latest. I want to push this to openshift online and get it running.

I think to do that the easiest way is to push the image up (correct me if I'm wrong).

Here is my attempt.

oc login https://console-openshift-console.apps.us-east-1.starter.openshift-online.com:6443

oc project playpen

docker login -u myUser -p myToken default-route-openshift-image-registry.apps.us-east-1.starter.openshift-online.com

docker tag springio/spring-rest-hello-world default-route-openshift-image-registry.apps.us-east-1.starter.openshift-online.com:5000/springio/spring-rest-hello-world

docker push default-route-openshift-image-registry.apps.us-east-1.starter.openshift-online.com:5000/springio/spring-rest-hello-world

With the error being...

Get https://default-route-openshift-image-registry.apps.us-east-1.starter.openshift-online.com:5000/v2/: net/http: request canceled while waiting for connection (Client.Timeout exceeded while awaiting headers

I am a newb at this stuff so I am pretty sure I have something wrong. Appreciate it if someone could give me a hand with the steps required.

thanks

...

ANSWER

Answered 2020-Mar-18 at 23:26

Thanks to the comment provided. No need to include the docker port when tagging the image.

I also needed to tag the image with the ocp project name included in the tag.

docker tag springio/spring-rest-hello-world default-route-openshift-image-registry.apps.us-east-1.starter.openshift-online.com/playpen/spring-rest-hello-world:latest

Source https://stackoverflow.com/questions/60717811

QUESTION

SQL: Where clause at 2 places in sql query

Asked 2019-Mar-15 at 07:46

I have a unique requirement where I have to fetch data from more than one table and I do not afford to hit more than 1 SQL query.

There are 2 tables, Table1 and Table2.

Columns in Table 1 are:

...

ANSWER

Answered 2019-Mar-15 at 07:46

You can use the filter() clause for aggregates:

Source https://stackoverflow.com/questions/55177688

QUESTION

Saving rotated image with easeljs?

Asked 2017-Sep-18 at 15:13

I'm loading a bitmap image onto a canvas using easeljs. I can apply a rotation, and I would like to get the modified dataUrl for that image, showing the rotation. But rotation seems to be ignored when using cache or getCacheDataURL?

Sample code -- jsfiddle here

...

ANSWER

Answered 2017-Sep-18 at 15:13

The image is only rotated in its parent context. Rotating it doesn't change the orientation of the source, even if you cache it.

Here is a quick update, where the bitmap is added to a Container, and the container is cached instead of the bmp. Since the bmp is rotated inside the container, it appears as expected.

http://jsfiddle.net/ecwd5vdz/2/

Source https://stackoverflow.com/questions/46271924

QUESTION

Rust error E0495 using split_at_mut in a closure

Asked 2017-Feb-10 at 16:15

I'm encountering an "error[E0495]: cannot infer an appropriate lifetime for autoref due to conflicting requirements" with this simple function:

...

ANSWER

Answered 2017-Feb-10 at 15:18

An IRC user nox provided a clean answer by using mem::replace to move the &mut [T] that needs mutation out of the way first :

Source https://stackoverflow.com/questions/42162151

QUESTION

Borrow checker and function arguments in Rust, correct or over zealous?

Asked 2017-Jan-02 at 08:05

When a mutable argument is passed as a function argument, the borrow checker doesn't allow this to be used to construct other arguments, even when those arguments clone values without holding a reference.

While assigning variables outside the function is always an option¹, logically this seems over zealous and something the borrow checker could take into account.

Is this working as intended or something that should be resolved?

...

ANSWER

Answered 2017-Jan-02 at 04:01

This is an artifact of the current implementation of the borrow checker. It is a well known limitation, dating back to at least 2013, and no one is overjoyed by it.

Is this working as intended

Yes.

something that should be resolved?

Yes.

The magic keywords are "non-lexical lifetimes". Right now, lifetimes are lexical - they correspond to the blocks of source that we type. Ideally, foo.method(foo.mutable_method()) would see that the borrow ends "inside the parenthesis", but for a myriad of reasons, it is tied to the entire statement.

For tons of further information see RFC issue 811 and everything linked from there.

Source https://stackoverflow.com/questions/41421107

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

Vulnerabilities

No vulnerabilities reported

Install playpen

You can download it from GitHub.

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For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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