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Re: [Libvir] [PATCH]OpenVZ Enhancements - Cleaned up

On Mon, Sep 03, 2007 at 08:01:00AM -0400, Shuveb Hussain wrote:
> Hi,
> Attached are the OpenVZ driver enhancements. Cleanups have been done  
> according to Daniel .V's suggestions. Please see my previous mail for  
> summary.

  Okay, that looks better, thanks a lot !
I will apply them but there is a few things I still have issues with,
I will try to fix them before commiting the patches:

  - in general using NULL to test anything but a pointer is not good
    code, thing like 
       if(uuidstr[0] == (int)NULL) {
    is not okay. If you want to test a char for 0 use 0 not NULL.
  - I will have to check better but trying to detect an uninitialized UUID
    just by checking the first byte sounds rather wrong to me, but maybe
    I missed something.
  - some really bizare changes of an xmlDoc name field:
    +    if (!(xml->name = calloc(1, PATH_MAX))) {
    +        openvzLog(OPENVZ_ERR, "Error in allocating memory to store xml URI");
    +        xmlFreeDoc(xml);
    +        return NULL;
    +    }
    +    if (displayName)
    +        strncpy(xml->name, displayName, PATH_MAX - 1);
    +    else
    +        strncpy(xml->name, "domain.xml", PATH_MAX - 1);
    that's bad because: 
      + it will probably leak the previous value of xml->name
      + xml->name should be allocated using xmlMalloc
      + why allocate MAX_PATH when you can allocate just the size
    so I will cleanup that part, still I don't undertsand what you
    tried to do there.

 This should hit CVS later today when I cleaned up those things and possibly
a couple of warnings,

 thanks again !


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/
http://veillard.com/ | Rpmfind RPM search engine  http://rpmfind.net/

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