Re: Find out the process address space
From: Måns Rullgård (mru_at_kth.se)
Date: 11/29/03
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Date: Sat, 29 Nov 2003 14:17:35 +0100
singhal_maneesh@yahoo.com (For-NG) writes:
> Is there a way to find out the process address space boundaries
> (interms of addresses) programatically (in the user space only). Also
> the start and end boundaries of different segments, if they can be
> found out.
No.
> More precisely, I want to find out an authentic way by which I can
> say a given address is invalid for this process (or for the current
> process), and I get EFAULT kind of error if I use this address for
> system calls like write,sigaction etc. Is there any existing library
> routine exists which can do so. More wanted for Linux.
Read the address. If you get a SIGSEGV, it wasn't valid. Relying on
being able to determine the validity of an address is bad design.
-- Måns Rullgård mru@kth.se
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