At Thu, 27 Mar 2003 16:01:54 +1100, Andy Eager wrote:
> Is it possible to test the accessability (rw or ro) of a memory region 
> before writing to it?

install a signal handler for SIGSEGV that longjmps to somewhere safe,
and then just write.

note that a strict reading of the specs says "all behaviour is
undefined after returning from catching SIGSEGV".


the only *right* answer of course, is Don't Do That.

-- 
 - Gus
-- 
SLUG - Sydney Linux User's Group - http://slug.org.au/
More Info: http://lists.slug.org.au/listinfo/slug

Reply via email to