Kandji 管理デバイスで AirDrop が利用できないときの対処方法

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#!/bin/bash
# Copyright 2025 ZUNDA Inc.
# 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:
# The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
# 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.

# Get Bonjour Service Status Value
current_value=$(defaults read /Library/Preferences/com.apple.mDNSResponder.plist NoMulticastAdvertisements 2>&1 | grep -E '^(0|1)$')

# Check the Value and Take Action
# 0: Bonjour Service is Disabled, Trying to Make Available Bonjour Service.
# 1: Bonjour Service is Already Enabled, No Action.
# ?: Invalid Status, No Action, Exit with 1
if [[ "$current_value" == "1" ]]; then
  sudo defaults write /Library/Preferences/com.apple.mDNSResponder.plist NoMulticastAdvertisements -bool false
  sudo launchctl stop com.apple.mDNSResponder && sudo launchctl start com.apple.mDNSResponder
  echo "Enabled"
elif [[ "$current_value" == "0" ]]; then
  echo "Already Enabled"
else
  echo "Error: Invalid Status, Value: $current_value" >&2
  exit 1
fi

exit 0