我是root时，如何获取登录用户的用户名或主目录? [英] How do I get user name or home dir of the logged-in user when I'm root?

问题描述

我的应用程序以root用户身份运行，但是是从常规(Admin)用户启动的，例如使用sudo命令(但不一定，例如，我不能简单地检查env var SUDO_USER).

My app runs as the root user, but was launched from the regular (Admin) user, e.g. using the sudo command (but not necessarily, i.e. I cannot simply check the env var SUDO_USER, for instance).

如何确定登录到用户界面会话中的用户名或其主目录?

How can I determine the user name or its homedir that is logged in to the User Interface session?

是否存在可以为我提供该信息的Cocoa，Foundation或CoreFoundation函数?

Is there a Cocoa, Foundation or CoreFoundation function that can give me that information?

推荐答案

即使对于以root用户运行的应用程序，"HOME"环境变量似乎仍设置为登录用户.因此，以下是获取该用户的主文件夹的方法:

It appears the "HOME" environment variable remains set to the logged-in user, even for apps running under the root user. So, here's how to get the home folder for that user:

NSString *homeDir = NSProcessInfo.processInfo.environment[@"HOME"];

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