├── .editorconfig ├── .gitattributes ├── .github └── workflows │ └── main.yml ├── .gitignore ├── .npmrc ├── index.js ├── license ├── main-linux-x64 ├── main.c ├── package.json ├── readme.md └── test.js /.editorconfig: -------------------------------------------------------------------------------- 1 | root = true 2 | 3 | [*] 4 | indent_style = tab 5 | end_of_line = lf 6 | charset = utf-8 7 | trim_trailing_whitespace = true 8 | insert_final_newline = true 9 | 10 | [*.yml] 11 | indent_style = space 12 | indent_size = 2 13 | -------------------------------------------------------------------------------- /.gitattributes: -------------------------------------------------------------------------------- 1 | * text=auto eol=lf 2 | -------------------------------------------------------------------------------- /.github/workflows/main.yml: -------------------------------------------------------------------------------- 1 | name: CI 2 | on: 3 | - push 4 | - pull_request 5 | jobs: 6 | test: 7 | name: Node.js ${{ matrix.node-version }} 8 | runs-on: ubuntu-latest 9 | strategy: 10 | fail-fast: false 11 | matrix: 12 | node-version: 13 | - 16 14 | steps: 15 | - uses: actions/checkout@v2 16 | - uses: actions/setup-node@v2 17 | with: 18 | node-version: ${{ matrix.node-version }} 19 | - run: npm install 20 | - run: npm test 21 | -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | node_modules 2 | yarn.lock 3 | main 4 | -------------------------------------------------------------------------------- /.npmrc: -------------------------------------------------------------------------------- 1 | package-lock=false 2 | -------------------------------------------------------------------------------- /index.js: -------------------------------------------------------------------------------- 1 | import process from 'node:process'; 2 | import path from 'node:path'; 3 | import {fileURLToPath} from 'node:url'; 4 | import execa from 'execa'; 5 | 6 | const __dirname = path.dirname(fileURLToPath(import.meta.url)); 7 | 8 | export async function unixPathMax() { 9 | if (process.platform === 'win32') { 10 | throw new Error('Not supported on Windows'); 11 | } 12 | 13 | const {stdout} = await execa('./main', {cwd: __dirname}); 14 | return Number(stdout); 15 | } 16 | 17 | export function unixPathMaxSync() { 18 | if (process.platform === 'win32') { 19 | throw new Error('Not supported on Windows'); 20 | } 21 | 22 | const {stdout} = execa.sync('./main', {cwd: __dirname}); 23 | return Number(stdout); 24 | } 25 | -------------------------------------------------------------------------------- /license: -------------------------------------------------------------------------------- 1 | MIT License 2 | 3 | Copyright (c) Sindre Sorhus (https://sindresorhus.com) 4 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: 6 | 7 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. 8 | 9 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 10 | -------------------------------------------------------------------------------- /main-linux-x64: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/sindresorhus/unix-path-max/fd9f801b629c14796b3fbf5f965fb6236bbf6103/main-linux-x64 -------------------------------------------------------------------------------- /main.c: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | 4 | int main() { 5 | struct sockaddr_un s; 6 | printf("%lu\n", sizeof(s.sun_path)); 7 | return 0; 8 | } 9 | -------------------------------------------------------------------------------- /package.json: -------------------------------------------------------------------------------- 1 | { 2 | "name": "unix-path-max", 3 | "version": "2.0.0", 4 | "description": "Get the maximum permitted length of a path of a Unix domain socket", 5 | "license": "MIT", 6 | "repository": "sindresorhus/unix-path-max", 7 | "funding": "https://github.com/sponsors/sindresorhus", 8 | "author": { 9 | "name": "Sindre Sorhus", 10 | "email": "sindresorhus@gmail.com", 11 | "url": "https://sindresorhus.com" 12 | }, 13 | "type": "module", 14 | "exports": "./index.js", 15 | "bin": "./main", 16 | "engines": { 17 | "node": "^12.20.0 || ^14.13.1 || >=16.0.0" 18 | }, 19 | "scripts": { 20 | "test": "xo && ava", 21 | "compile": "gcc main.c -o \"main-$(node -e \"console.log(process.platform + '-' + process.arch)\")\"", 22 | "preinstall": "[ -e \"main-$(node -e \"console.log(process.platform + '-' + process.arch)\")\" ] && mv \"main-$(node -e \"console.log(process.platform + '-' + process.arch)\")\" main || gcc main.c -o main" 23 | }, 24 | "files": [ 25 | "index.js", 26 | "main.c", 27 | "main-linux-x64", 28 | "main-darwin-x64" 29 | ], 30 | "keywords": [ 31 | "get", 32 | "detect", 33 | "max", 34 | "path", 35 | "length", 36 | "unix", 37 | "domain", 38 | "socket" 39 | ], 40 | "dependencies": { 41 | "execa": "^5.1.1" 42 | }, 43 | "devDependencies": { 44 | "ava": "^3.15.0", 45 | "xo": "^0.44.0" 46 | } 47 | } 48 | -------------------------------------------------------------------------------- /readme.md: -------------------------------------------------------------------------------- 1 | # unix-path-max 2 | 3 | > Get the [maximum permitted length](https://serverfault.com/questions/641347/check-if-a-path-exceeds-maximum-for-unix-domain-socket) of a path of a Unix domain socket 4 | 5 | *Does not work on Windows.* 6 | 7 | ## Install 8 | 9 | ``` 10 | $ npm install unix-path-max 11 | ``` 12 | 13 | ## Usage 14 | 15 | ```js 16 | import {unixPathMax} from 'unix-path-max'; 17 | 18 | console.log(await unixPathMax()); 19 | //=> 104 20 | ``` 21 | 22 | ## API 23 | 24 | ### unixPathMax() 25 | 26 | Returns a Promise for the maximum permitted length of a path. 27 | 28 | ### unixPathMaxSync() 29 | 30 | Returns the maximum permitted length of a path. 31 | 32 | ## CLI 33 | 34 | ``` 35 | $ npm install --global unix-path-max 36 | ``` 37 | 38 | ``` 39 | $ unix-path-max 40 | 104 41 | ``` 42 | -------------------------------------------------------------------------------- /test.js: -------------------------------------------------------------------------------- 1 | import test from 'ava'; 2 | import {unixPathMax, unixPathMaxSync} from './index.js'; 3 | 4 | test('async', async t => { 5 | const length = await unixPathMax(); 6 | t.is(typeof length, 'number'); 7 | t.true(length > 0); 8 | }); 9 | 10 | test('sync', t => { 11 | const length = unixPathMaxSync(); 12 | t.is(typeof length, 'number'); 13 | t.true(length > 0); 14 | }); 15 | --------------------------------------------------------------------------------