Prompt for root access in cocoa application

I want my program to begin with a prompt/alert that asks for root access. The user must enter their password, and then the application follows. I've been looking开发者_如何学运维 around, but I'm not exactly sure how to do this.

You help is greatly appreciated.

Thanks!

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This is Apple's documentation on the matter, and here is a good example of it.

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Use BLAuthentication. Its much easier to launch authorization as root and you can enter bash commands to run as root.

http://jim.roepcke.com/blog/archives/2002/09/24/blauthentication-class.html