使用 AuthorizationExecuteWithPrivileges 启动后终止进程
如果我使用 AuthorizationExecuteWithPrivileges 启动 shell 脚本，那么终止该脚本及其生成的任何其他进程的最简单方法是什么。
谢谢
If I launched a shell script using AuthorizationExecuteWithPrivileges what would be the easiest way to kill the script and any other processes that it spawned.
Thanks
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它以 root 身份运行，因此您无法从普通用户进程中终止它。你必须礼貌地要求它自行退出。
It's running as root, so you can't kill it from a regular-user process. You're going to have to ask it nicely to exit on its own.
Apple 有 示例代码 使用 stdout 将 PID 传递回调用者。
Apple has sample code that uses stdout to pass the PID back to the caller.
使用
AuthorizationExecuteWithPrivileges()在其最后一个参数FILE **communicationPipe中通过引用返回的通信管道，向子进程发送一条消息，要求其将自身和其子孙出。然后，它可以使用kill(0, SIGINT)杀死自己及其所有后代，或者，如果需要更严厉的措施，则使用SIGKILL。您使用的消息可以像在子进程等待文件关闭时关闭文件一样简单；到那时，它知道你已经结束了与它的对话，是时候退出了。
关于实际接收此消息的后代，有一些警告，请参阅
kill(2)联机帮助页。只要您通过 AEWP 启动的进程没有放弃特权，这些警告基本上就无关紧要，但一个隐含的问题是，如果任何子进程将自己放入新的进程组，则这种方法将不起作用。Use the communications pipe that
AuthorizationExecuteWithPrivileges()returns by reference in its last argument,FILE **communicationPipe, to send a message to the child process that asks it to take itself and its descendants out. It can then kill itself and all its descendants usingkill(0, SIGINT), or, if more drastic measures are required,SIGKILL.The message you use can be as simple as closing the file while the child waits for the file to close; at that point, it knows you're done talking to it and it's time to take itself out.
There are some caveats about the descendants that will actually receive this message, for which see the
kill(2)manpage. The caveats mostly won't matter so long as the process you started via AEWP hasn't dropped privileges, though one implicit issue is that this approach won't work if any child processes have put themselves in a new process group.