* John Doh! <[EMAIL PROTECTED]> [000907 19:28] wrote:
> Hello to you am I C coder who to wish write programs we cannot exploit via
> code such as below.
>
> >
> > main(int argc, char **argv)
> > {
> > if(argc > 1) {
> > printf(gettext("usage: %s filename\n"),argv[0]);
> > exit(0);
> > }
> > printf("normal execution proceeds...\n");
> > }
>
> Issue is must be getting format string from "untrusted" place, but want to
> limit substitution of %... to the substitution of say in example the
> argv[0], but to not do others so that say given "usage: %s filename %p" %p
> not interpret but to be print instead as literally so we get output of
> (saying to be argv[0] as test just for example) usage: test filename %p
>
> any hints you have I am very greatful for.
try "%%p"
-Alfred
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