### Install Dependencies and Run MIB to JSON Converter (Bash)

Source: https://context7.com/romant094/mib-to-json-converter/llms.txt

Provides shell commands to set up and execute the MIB to JSON conversion project. It covers installing Node.js dependencies, running the main script using npm, or executing the parser directly with Node.js. The commands outline the process from dependency management to application execution.

```bash
# Install required dependencies
npm install

# Run the simple ASN.1 parser
npm run start

# Or run directly with Node.js
node index.js

# For the custom parser (parser.js), execute directly
node parser.js

# Expected output structure created in ./output/ directory
# Each .mib file becomes a .json file with structured data

```

--------------------------------

### Simple MIB to JSON Conversion using asn2json

Source: https://context7.com/romant094/mib-to-json-converter/llms.txt

This Node.js snippet demonstrates batch conversion of MIB files from a './mibs' directory to JSON format in './output'. It utilizes the 'asn2json' library for parsing ASN.1 MIB data. Ensure the 'asn2json' library is installed and MIB files are present in the './mibs' directory.

```javascript
const Asn2json = require('asn2json');
const fs = require('node:fs');

const asn = new Asn2json();
const files = fs.readdirSync('./mibs');

files.forEach(file => {
  const data = fs.readFileSync('./mibs/' + file, 'utf8');
  const parsed = asn.parse(data);
  fs.writeFileSync(
    './output/' + file + '.json',
    JSON.stringify(parsed, null, 2)
  );
});

// Example output structure for a MIB file:
// {
//   "name": "IANA-CHARSET-MIB",
//   "imports": [...],
//   "definitions": [...],
//   "objects": []
// }
```

--------------------------------

### Batch Process MIB Files to JSON (JavaScript)

Source: https://context7.com/romant094/mib-to-json-converter/llms.txt

Processes all MIB files within an input directory, parses them using `parseMibText` and `parseOidMap` (assumed to be defined elsewhere), and outputs the structured data into individual JSON files in a specified output directory. It handles file system operations for reading and writing. Dependencies include Node.js `fs` and `path` modules.

```javascript
const fs = require('fs');
const path = require('path');

const INPUT_DIR = path.join(__dirname, 'barox');
const OUTPUT_DIR = path.join(__dirname, 'output');

if (!fs.existsSync(OUTPUT_DIR)) {
  fs.mkdirSync(OUTPUT_DIR);
}

const mibFiles = fs.readdirSync(INPUT_DIR).filter(file => file.endsWith('.mib'));

for (const file of mibFiles) {
  const inputPath = path.join(INPUT_DIR, file);
  const outputPath = path.join(OUTPUT_DIR, file.replace(/\.mib$/, '.json'));

  const text = fs.readFileSync(inputPath, 'utf-8');
  const oidMap = parseOidMap(text); // Assumes parseOidMap is defined elsewhere
  const grouped = parseMibText(text, oidMap);

  fs.writeFileSync(outputPath, JSON.stringify(grouped, null, 2), 'utf-8');
  console.log(`✅ Parsed ${file} → ${path.basename(outputPath)}`);
}

```

--------------------------------

### MIB OID Path Builder Function

Source: https://context7.com/romant094/mib-to-json-converter/llms.txt

This recursive JavaScript function, `buildOid`, constructs the complete numeric OID path (dot-notation) from a given identifier name. It traverses an OID hierarchy map generated by `parseOidMap`. The function requires the identifier name and the OID map as input, and it returns the constructed OID string.

```javascript
const buildOid = (name, map, path = []) => {
  if (!map.has(name)) return path.reverse().join('.');
  const { parent, index } = map.get(name);
  path.push(index);
  return buildOid(parent, map, path);
};

// Example usage:
const oidMap = new Map([
  ['private', { parent: 'internet', index: 4 }],
  ['enterprises', { parent: 'private', index: 1 }],
  ['cisco', { parent: 'enterprises', index: 9 }],
]);

const fullOid = buildOid('cisco', oidMap);
// Result: "4.1.9"

// With actual root OIDs:
const fullPath = '1.3.6.1.' + fullOid;
// Result: "1.3.6.1.4.1.9" (standard Cisco enterprise OID)
```

--------------------------------

### Parse MIB Text for Writable Objects (JavaScript)

Source: https://context7.com/romant094/mib-to-json-converter/llms.txt

Parses MIB text to extract OBJECT-TYPE definitions, focusing on writable objects (read-write, read-create). It associates objects with their parent tables and groups the results by table name. Dependencies include regular expressions for parsing and a utility function `buildOid` (not provided) for OID construction.

```javascript
const parseMibText = (text, oidMap) => {
  const results = [];
  const objectTypeRegex = /(\w+)\s+OBJECT-TYPE\s+([\s\S]*?)::=\s*{\s*([\w\-]+)\s+(\d+)\s*}/g;

  const entryMap = new Map();
  const entryDefs = text.matchAll(/(\w+)Entry\s+OBJECT-TYPE[\s\S]*?::=\s*{\s*(\w+Table)\s+\d+\s*}/g);
  for (const m of entryDefs) {
    entryMap.set(m[1], m[2]);
  }

  for (const match of text.matchAll(objectTypeRegex)) {
    const name = match[1];
    const block = match[2];
    const parent = match[3];
    const index = match[4];

    const syntaxMatch = block.match(/SYNTAX\s+([^\n]+)/);
    const accessMatch = block.match(/(MAX-ACCESS|ACCESS)\s+(read-\w+)/);
    const descMatch = block.match(/DESCRIPTION\s+"([^"]*)"/);

    const syntax = syntaxMatch ? syntaxMatch[1].trim() : null;
    const access = accessMatch ? accessMatch[2].trim() : null;
    const description = descMatch ? descMatch[1].trim() : null;

    if (!['read-write', 'read-create'].includes(access)) continue;

    let options = null;
    const enumMatch = block.match(/{\s*([^}]+)\s*}/);
    if (enumMatch && /(\w+\s*\(\d+\))/g.test(enumMatch[1])) {
      options = enumMatch[1].split(',').map(s => s.trim()).filter(Boolean);
    }

    let table = null;
    for (const [entry, tableName] of entryMap.entries()) {
      if (name.startsWith(entry)) {
        table = tableName;
        break;
      }
    }

    const flatOid = buildOid(parent, oidMap, [index]);

    results.push({
      name,
      type: syntax,
      access,
      options,
      description,
      oid: `${parent} ${index}`,
      flatOid: '.' + flatOid,
      table: table || '__ungrouped__'
    });
  }

  const grouped = {};
  for (const r of results) {
    if (!grouped[r.table]) grouped[r.table] = [];
    grouped[r.table].push(r);
  }

  return grouped;
};

```

--------------------------------

### MIB OID Map Parser Function

Source: https://context7.com/romant094/mib-to-json-converter/llms.txt

This JavaScript function, `parseOidMap`, extracts OBJECT IDENTIFIER definitions from MIB text. It uses a regular expression to identify OID names and their parent-child relationships, including numeric indices, and stores them in a Map for building OID hierarchy trees. The function expects MIB text as input and returns a Map object.

```javascript
const parseOidMap = (text) => {
  const map = new Map();
  const regex = /^(\w+)\s+OBJECT IDENTIFIER\s+::=\s*{([^}]+)}/gm;

  for (const match of text.matchAll(regex)) {
    const name = match[1];
    const parts = match[2].trim().split(/\s+/);
    let parent = parts[0];
    let index = parts[1];

    if (index && index.includes('(')) {
      index = index.match(/\((\d+)\)/)?.[1];
    }

    map.set(name, { parent, index: parseInt(index, 10) });
  }

  return map;
};

// Example usage:
const mibText = `
  enterprises OBJECT IDENTIFIER ::= { private 1 }
  cisco OBJECT IDENTIFIER ::= { enterprises 9 }
  ciscoMgmt OBJECT IDENTIFIER ::= { cisco 9 }
`;

const oidMap = parseOidMap(mibText);
// Map {
//   'enterprises' => { parent: 'private', index: 1 },
//   'cisco' => { parent: 'enterprises', index: 9 },
//   'ciscoMgmt' => { parent: 'cisco', index: 9 }
// }
```

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