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SubjectRe: [PATCH] Smackv10: Smack rules grammar + their stateful parser
On Sat, Nov 03, 2007 at 06:43:06PM +0200, Ahmed S. Darwish wrote:
> On Fri, Nov 02, 2007 at 01:50:55PM -0700, Casey Schaufler wrote:
> >
> > Still to come:
> >
> > - Final cleanup of smack_load_write and smack_cipso_write.
> Hi All,
> After agreeing with Casey on the "load" input grammar yesterday, here's
> the final grammar and its parser (which needs more testing):
> A Smack Rule in an "egrep" format is:
> "^[:space:]*Subject[:space:]+Object[:space:]+[rwxaRWXA-]+[:space:]*\n"
> where Subject/Object strings are in the form:
> "^[^/[:space:][:cntrl:]]{1,SMK_MAXLEN}$"

Can you limit this to 7bit ASCII and use isascii() somewhere?

Otherwise I'd expect funny things to happen when you e.g. use isspace()
on the UTF-8 encoded character à.



"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed

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