On Thu, Jan 27, 2011 at 11:12:43AM -0800, patrick keshishian wrote:
> On Thu, Jan 27, 2011 at 1:37 AM, Federico G. Schwindt <fg...@lodoss.net> 
> wrote:
> > On Wed, Jan 26, 2011 at 05:13:44PM -0800, patrick keshishian wrote:
> >> On Wed, Jan 26, 2011 at 4:45 PM, Federico G. Schwindt <fg...@lodoss.net> 
> >> wrote:
> >> > On Wed, Jan 26, 2011 at 03:15:11PM -0800, patrick keshishian wrote:
> >> >> http://marc.info/?l=openbsd-ports&m=129372769129646&w=2
> >> >>
> >> >> I never got any replies of "yes", "maybe", "you are out of your
> >> >> freaking mind", etc.
> >> >
> >> > ?what about something like this:
> >> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=300289?
> >> > ?looks simpler imho.
> >>
> >> The libhfsp/src/swab.h source on debian link seems different than what
> >> I see in hfsplus_1.0.4.src.tar.bz2 (just downloaded).
> >>
> >> MD5 (hfsplus_1.0.4.src.tar.bz2) = 18fa1efb5432469357ffa6bfa7c08fcd
> >> size: 185461
> >>
> >>
> >> Either way, I don't think the dabian patch is correct; at least not
> >> entirely. They propose:
> >>
> >> -#define bswabU16_inc(ptr) (*((UInt16*) (ptr))++)
> >> +#define bswabU16_inc(ptr) ptr = (UInt16*)ptr + 1
> >>
> >> which will change the following (from btree.c):
> >>
> >> ? ? node->num_rec ? = bswabU16_inc(p);
> >> ? ? node->reserved ?= bswabU16_inc(p);
> >>
> >> to:
> >> ? ? node->num_rec ? = p = (UInt16*)p + 1;
> >> ? ? node->reserved ?= p = (UInt16*)p +1;
> >>
> >> I seriously doubt this is the intent of the original code.
> >
> > ?ok, assuming they wanted "*p; *p++" i believe you can do:
> 
> No. The intent is:
> 
>       some_integer_type = *(some_integer_type*)p;
>       p = (some_interger_type*)p + sizeof(some_integer_type);

  sorry, that's what i meant (as opposed to p = p + 1) and the code below
should do that.
 
  f.-

> > #define bswabU16_inc(ptr) ?((*((UInt16*)(ptr)))++)
> >
> > ?and will give you the right result.
> >
> > ?f.-
> >

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