# vol [![Build Status](https://travis-ci.org/gillstrom/vol.svg?branch=master)](https://travis-ci.org/gillstrom/vol)

> Get and set sound volume.


## Install

```
$ npm install --save vol
```


## Usage

```js
var vol = require('vol');

vol.get(function (err, level) {
	console.log(level);
	//=> 0.45
});

vol.set(0.65, function (err) {
	console.log('Changed volume to 65%');
});

vol.mute(function (err) {
	console.log('Volume muted');
});
```


## CLI

<img width="283" src="screenshot.png">

```
$ npm install --global vol
```

```
$ vol --help

  Usage
    $ vol (Interactive CLI)
    $ vol <level>
    $ vol mute
```


## API

### .get(callback)

Get volume level.

#### callback(err, level)
  
Type: `function`

##### level

Type: `number`

Current volume level.

### .set(level, callback)

Set volume level.

#### level

*Required*
Type: `number`

A number between `0` and `1`.

#### callback(err)
  
Type: `function`

Returns nothing but a possible exception.


## License

MIT © [Andreas Gillström](http://github.com/gillstrom)


kevva

gillstrom

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Ambiguous License Classifier

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Bad semver

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Bad dependency semver

Source files contain bidirectional unicode control characters. This could indicate a Trojan source supply chain attack. See: trojansource.codes for more information.

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Bidirectional unicode control characters

This package has multiple bin scripts with the same name. This can cause non-deterministic behavior when installing or could be a sign of a supply chain attack.

What is bin script confusion?

Bin script confusion

This Chrome extension includes content scripts that execute JavaScript on specified websites.

What are Chrome extension content scripts?

Chrome: Content Script

This Chrome extension requests host permissions to access specific websites or domains.

What are Chrome extension host permissions?

Chrome: Host Permission

This Chrome extension requests permissions to access browser APIs, user data, or system features.

What are Chrome extension permissions?

Chrome: Permission

This Chrome extension requests wildcard host permissions that grant broad access to websites.

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Chrome: Wildcard Host Permission

Semantic versions published out of chronological order.

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Chronological version anomaly

Project maintainer's SSH key has been compromised.

What is a compromised SSH key?

Compromised SSH key

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Copyleft License

Contains a Critical Common Vulnerability and Exposure (CVE).

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Title

Critical CVE

Contains a high severity Common Vulnerability and Exposure (CVE).

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High CVE

Uses debug, reflection and dynamic code execution features.

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Debug access

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Deprecated

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Deprecated SPDX exception

(Experimental) License is deprecated which may have legal implications regarding the package's use.

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Deprecated license

Package name is similar to other popular packages and may not be the package you want.

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Possible typosquat attack

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Dynamic require

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Empty package

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File dependency

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Filesystem access

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Wildcard dependency

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An input argument to this GitHub Action is being passed back as an output. If a user of this action passes untrusted input, it could be used in an insecure manner by consuming workflows.

GitHub Actions: Input argument passed back as output

An input argument to this GitHub Action flows into a dangerous sink (such as shell command execution). This could allow a malicious user to inject commands or exploit the action.

GitHub Actions: Input argument flows to dangerous sink

A GitHub context variable (such as issue title, PR description, or comment body) is being exported as an environment variable. These context values are user-controlled and could be exploited by subsequent workflow steps.

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A GitHub context variable (such as issue title, PR description, or comment body) is being passed back as an output. These context values are user-controlled and could be exploited by consuming workflows.

GitHub Actions: GitHub context variable passed back as output

A GitHub context variable (such as issue title, PR description, or comment body) flows into a dangerous sink (such as shell command execution). This is a critical security issue that could allow command injection or code execution attacks.

GitHub Actions: GitHub context variable flows to dangerous sink

An environment variable flows into a dangerous sink (such as shell command execution). If this environment variable comes from an untrusted source, it could be exploited to inject commands.

GitHub Actions: Environment variable flows to dangerous sink

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Git dependency

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GitHub dependency

AI has identified unusual behaviors that may pose a security risk.

What is an AI-detected potential code anomaly?

AI-detected potential code anomaly

AI has identified this package as a potential typosquat of a more popular package. This suggests that the package may be intentionally mimicking another package's name, description, or other metadata.

What is AI-detected potential typosquatting?

AI-detected possible typosquat

AI has identified this package as malware. This is a strong signal that the package may be malicious.

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AI-detected potential malware

AI has determined that this package may contain potential security issues or vulnerabilities.

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AI-detected potential security risk

Contains native code (e.g., compiled binaries or shared libraries). Including native code can obscure malicious behavior.

Why is native code a concern?

Native code

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High entropy strings

Contains unicode homoglyphs which can be used in supply chain confusion attacks.

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Unicode homoglyphs

Contains a dependency which resolves to a remote HTTP URL which could be used to inject untrusted code and reduce overall package reliability.

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HTTP dependency

Install scripts are run when the package is installed or built. Malicious packages often use scripts that run automatically to execute payloads or fetch additional code.

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Install scripts

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Invalid manifest file

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Invisible chars

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Missing dependency

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Missing license

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Modified license exception

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Modified license

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Network access

A new npm collaborator published a version of the package for the first time. New collaborators are usually benign additions to a project, but do indicate a change to the security surface area of a package.

vol

vol

Install

Usage

CLI

API

.get(callback)

callback(err, level)

level

.set(level, callback)

level

callback(err)

License

Keywords

Related posts

vol

Install

Usage

CLI

API

.get(callback)

callback(err, level)

level

.set(level, callback)

level

callback(err)

License

Keywords

Related posts

5 Malicious Chrome Extensions Enable Session Hijacking in Enterprise HR and ERP Systems

Node.js Fixes AsyncLocalStorage Crash Bug That Could Take Down Production Servers