Re: [PATCH 4/7] spice-ppc: fix glz magic endianess

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On Wed, Aug 8, 2012 at 5:18 AM, Christophe Fergeau <cfergeau@xxxxxxxxxx> wrote:
> On Tue, Aug 07, 2012 at 03:43:11PM -0300, Erlon Cruz wrote:
>> From: Erlon Cruz <erlon.cruz@xxxxxxxxxxxxxxxxxx>
>>
>> Signed-off-by: Erlon R. Cruz <erlon.cruz@xxxxxxxxxxxxxxxxxx>
>> Signed-off-by: Fabiano Fidêncio <Fabiano.Fidêncio@xxxxxxxxxxxxxxxxxxxxx>
>> Signed-off-by: Rafael F. Santos <Rafael.Santos@xxxxxxxxxxxxxxxxxxxxx>
>> ---
>>  server/glz_encoder.c |    2 +-
>>  1 files changed, 1 insertions(+), 1 deletions(-)
>>
>> diff --git a/server/glz_encoder.c b/server/glz_encoder.c
>> index 1ec1f9b..f8415a8 100644
>> --- a/server/glz_encoder.c
>> +++ b/server/glz_encoder.c
>> @@ -261,7 +261,7 @@ int glz_encode(GlzEncoderContext *opaque_encoder,
>>      encoder->cur_image.id = dict_image->id;
>>      encoder->cur_image.first_win_seg = dict_image->first_seg;
>>
>> -    encode_32(encoder, LZ_MAGIC);
>> +    encode_32(encoder, htole32(LZ_MAGIC));
>
> LZ_MAGIC really should be a string that we encode using something like
> encode_array(encoder, LZ_MAGIC, sizeof(LZ_MAGIC)), but we don't have such
> facilities in glz_encoder.c, so why not. Have you tested that a ppc encoded
> glz stream can be decoded on an x86 client? (thinking of it, it might be
> the only setup you have tested for now).

Hi Christophe,

Didn't get the point here, it doesn't makes sent to me once the
problem here is that this 4 byte array is cast to integer. A generic
encode_array would have to swap bytes and wouldn't be useful for
encoding strings.

Regards,
Erlon
> Christophe
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