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Re: [libvirt] [PATCH] tests: viriscsitest: make it work on big endian archs



On Wed, Aug 01, 2018 at 03:08:07PM +0200, Pino Toscano wrote:
> viriscsitest tries to ensure the interface IQN used is a specific one,
> checking later on that it is the same all during the whole test.  Since
> the IQN generation involves random bytes, viriscsitest got a fake
> virRandomBytes from the virrandommock helper library, setting static
> values.  virRandomBits(), called by virStorageBackendCreateIfaceIQN(),
> always requests 8 random bytes, chopping off the ones not requested by
> the caller -- this meant that on big endian machines it would chop bytes
> from the wrong size of the data buffer, and thus not returning the
> expected numbers.
> 
> As a fix, do not rely on the mock virRandomBytes, but provide an own
> version of it: this version will fill the values in the expected order,
> depending on the endianness of the system.  This way, the result of
> virStorageBackendCreateIfaceIQN() will be what the test actually
> expects.
> 
> Signed-off-by: Pino Toscano <ptoscano redhat com>

Mailman is having deliver problems so you might not have received
the patch that was sent earlier for this problem:

https://www.redhat.com/archives/libvir-list/2018-August/msg00039.html

I prefer that approach since it avoids the endianness problems for
all future usage too.


Regards,
Daniel
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