AndroidRemoteController/nodejs/adb/scan-connect-ip.js

#!/usr/bin/env node
const { spawnSync } = require('child_process')
const path = require('path')
const config = require(path.join(__dirname, '..', '..', 'configs', 'config.js'))

const projectRoot = path.resolve(__dirname, '..', '..')

/** 从 config 解析并返回 adb 可执行文件路径 */
function getAdbPath() {
  return config.adbPath?.path
    ? path.resolve(projectRoot, config.adbPath.path)
    : path.join(projectRoot, 'lib', 'scrcpy-adb', 'adb.exe')
}

/** 判断 adb connect 输出是否表示连接成功 */
function isConnectSuccess(output) {
  const s = (output || '').trim()
  return s.includes('connected') || s.includes('already connected')
}

/** 对单个 IP 执行 adb connect，返回是否成功（不抛错，失败返回 false） */
function tryConnectOne(adbPath, ip, port) {
  const quotedAdb = adbPath.includes(' ') ? `"${adbPath}"` : adbPath
  const cmd = `${quotedAdb} connect ${ip}:${port}`
  const shell = process.platform === 'win32' ? 'cmd' : 'sh'
  const shellArg = process.platform === 'win32' ? '/c' : '-c'
  const r = spawnSync(shell, [shellArg, cmd], { encoding: 'utf-8', timeout: 500 })
  return r.status === 0 && isConnectSuccess(r.stdout)
}

/** 扫描网段 basePrefix.1～.255，返回连接成功的 IP 列表 */
function scanSubnet(adbPath, basePrefix, port) {
  const connected = []
  for (let i = 1; i <= 255; i++) {
    const ip = `${basePrefix}.${i}`
    if (tryConnectOne(adbPath, ip, port)) {
      connected.push(ip)
    }
  }
  return connected
}

const basePrefix = process.argv[2]
const port = process.argv[3] || '5555'

if (!basePrefix || !/^\d+\.\d+\.\d+$/.test(basePrefix)) {
  process.exit(1)
}

const adbPath = getAdbPath()
const connected = scanSubnet(adbPath, basePrefix, port)
process.stdout.write(connected.join('\n') + (connected.length ? '\n' : ''))
process.exit(0)