Messages in this thread |  | | Date | Sat, 4 Jan 1997 12:16:16 -0800 (PST) | From | "Peter J. Braam" <> | Subject | veryfiing a memory address |
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Happy new year!
Is there a way to verify if one can read/write an address in memory, other than handling the segfault that would happen if it failed?
Under Mach one has a system call "vm_region" which returns such information on a region.
We have "mprotect" which verifies, but also sets a flag. It would be great if mprotect could be used as a checker without changing the flags on the region.
For example we could do this by letting "mprot" change nothing but just verify if the prot argument is negative.
Maybe something else is in place already?
- Peter - braam@cs.cmu.edu
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