[syslinux] port syslinux isohybrid perl script to C

[H. Peter Anvin]

On 04/29/2010 12:14 PM, P J P wrote:
>    Hi,
> 
> --- On Thu, 29/4/10, H. Peter Anvin <hpa at zytor.com> wrote:
>> You need to fix your endianness problems, at the very least.
> 
> I tried to fix the endianness problem, please have a look at the latest patch accessible at:
> 
>  - http://pjp.dgplug.org/tools/syslinux-3.86-isohybrid.patch.4
>  - https://fedorahosted.org/fedora-engineering-services/ticket/15
> 
> 
> It does work on both types of machines now, I tested it on a ppc machine.
> 
> (~ @ 13:05)$ ./isohybrid.pl output.iso.1 
> (~ @ 13:05)$ ./isohybrid output.iso.2 
> (~ @ 13:05)$ ./endian 
> big endian
> n: 04030201
> Addr: 3220897608|3220897609|3220897610|3220897611|
> Byte:          4|         3|         2|         1|
> (~ @ 13:05)$ cmp output.iso output.iso.1 
> output.iso output.iso.1 differ: byte 433, line 4
> (~ @ 13:06)$ cmp output.iso output.iso.2 
> output.iso output.iso.2 differ: byte 433, line 4
> 

What you should compare is output.iso.1 and output.iso.2, not compare to
the original file.  I.e. does the C output match the Perl output?

	-hpa


-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.