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Re: [Libvir] [patch 2/2] Dont crash if theres no /sys/hypervisor/capabilities



On Wed, Feb 06, 2008 at 11:45:59PM +0000, Mark McLoughlin wrote:
> xenHypervisorMakeCapabilitiesXML() can be called with either
> of it's FILE* paramaters NULL; don't crash when the capabilities
> pointer is NULL.
> 
> Signed-off-by: Mark McLoughlin <markmc redhat com>
> Index: libvirt/src/xen_internal.c
> ===================================================================
> --- libvirt.orig/src/xen_internal.c	2008-02-06 22:38:06.000000000 +0000
> +++ libvirt/src/xen_internal.c	2008-02-06 23:38:54.000000000 +0000
> @@ -2233,7 +2233,7 @@
>       */
>  
>      /* Expecting one line in this file - ignore any more. */
> -    if (fgets (line, sizeof line, capabilities)) {
> +    if (capabilities && fgets (line, sizeof line, capabilities)) {
>          /* Split the line into tokens.  strtok_r is OK here because we "own"
>           * this buffer.  Parse out the features from each token.
>           */

  okay, but I still prefer when test expressions are fully parenthetized,
so preferabbly with ()() added, thanks :-)

  +1

Daniel

-- 
Red Hat Virtualization group http://redhat.com/virtualization/
Daniel Veillard      | virtualization library  http://libvirt.org/
veillard redhat com  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
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