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Re: [Libvir] [PATCH] Add virConnectGetCapabilities call to return the capabilities of the driver / hypervisor



Richard W.M. Jones wrote:
Daniel P. Berrange wrote:
On Fri, Mar 09, 2007 at 03:22:08PM +0000, Richard W.M. Jones wrote:
This patch:

* Adds virConnectGetCapabilities which returns an XML description of the capabilities of the driver or hypervisor under this connection (see below for more about the XML format).

+    /* 32 or 64 bit host? */
+ const char *bits = strstr (utsname.machine, "64") != NULL ? "64" : "32";

Will this work safely on all OS / arches ? I guess ia64, x86_64, sparc64
and ppc64  all give the right results.

One alternative would be using 'sizeof(void*) * 8', although if someone used a 32-bit set of libs on a 64-bit machine this would give wrong answer.

The trouble is you need to run that sizeof code inside the qemu virtual machine :-)

Sorry, wrong code - ignore!

Rich.

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