import requests         # Import the requests library for making HTTP requests

def netdev_check_vulnerabilities(service_name, service_version):
    """
    Check for vulnerabilities in the given service using a public API.
    """
    url = f"https://services.nvd.nist.gov/rest/json/cves/1.0"       # Define the URL for the National Vulnerability Database (NVD) API
    response = requests.get(url)                                # Send a GET request to the API
    if response.status_code == 200:             # Check if the response status code indicates success (200 OK)
        return response.json()                      # Return the JSON response from the API
    else:
        return {'error': 'Failed to fetch vulnerabilities'}         # Return an error message if the request failed

def netdev_scan_vulnerabilities(ip):
    """
    Scan the given IP address for vulnerabilities by detecting services and checking for known vulnerabilities.
    """
    services = detect_services(ip)      # Detect services running on the specified IP address
    vulnerabilities = {}            # Initialize an empty dictionary to store vulnerabilities for each service

    for service in services:            # Loop through each detected service
        vulns = check_vulnerabilities(service['name'], service['version'])      # Check for vulnerabilities in the current service by its name and version
        vulnerabilities[service['port']] = vulns            # Map the port number to the vulnerabilities found for the service running on that port

    return vulnerabilities  # Return the dictionary of vulnerabilities

