What happened to my /proc/curproc/file?

[Konstantin Belousov]

On Fri, Sep 07, 2012 at 10:33:52AM -0400, John Baldwin wrote:
> On Tuesday, September 04, 2012 7:46:23 pm Sam Varshavchik wrote:
> > Is the dev+ino of what was exec()ed known, for another process? I might be  
> > able to get the client voluntarily submit its argv[0], then independently  
> > have the server validate it by stat()ing that, and comparing the result  
> > against what the kernel says the process's inode is.
> 
> It's known in the kernel certainly.  I don't think we currently have any way
> of exporting that info to userland however.

It is, as  KF_FD_TYPE_TEXT by sysctl kern.proc.filedesc.
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