[libvirt] [PATCH v2 4/6] Add API to get the system identity

[Daniel P. Berrange]

On Tue, Mar 19, 2013 at 12:21:31PM +0100, Jiri Denemark wrote:
> On Wed, Mar 13, 2013 at 15:24:03 +0000, Daniel P. Berrange wrote:
> > From: "Daniel P. Berrange" <berrange at redhat.com>
> > 
> > If no user identity is available, some operations may wish to
> > use the system identity. ie the identity of the current process
> > itself. Add an API to get such an identity.
> > 
> > Signed-off-by: Daniel P. Berrange <berrange at redhat.com>
> > ---
> >  src/util/viridentity.c | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++
> >  src/util/viridentity.h |  2 ++
> >  2 files changed, 73 insertions(+)
> > 
> > diff --git a/src/util/viridentity.c b/src/util/viridentity.c
> > index acb0cb9..1c43081 100644
> > --- a/src/util/viridentity.c
> > +++ b/src/util/viridentity.c
> ...
> > @@ -116,6 +122,71 @@ int virIdentitySetCurrent(virIdentityPtr ident)
> >  
> >  
> >  /**
> > + * virIdentityGetSystem:
> > + *
> > + * Returns an identity that represents the system itself.
> > + * This is the identity that the process is running as
> > + *
> > + * Returns a reference to the system identity, or NULL
> > + */
> > +virIdentityPtr virIdentityGetSystem(void)
> > +{
> > +    char *username = NULL;
> > +    char *groupname = NULL;
> > +    char *seccontext = NULL;
> > +    virIdentityPtr ret = NULL;
> > +    gid_t gid = getgid();
> > +    uid_t uid = getuid();
> > +#if HAVE_SELINUX
> > +    security_context_t con;
> > +#endif
> > +
> > +    if (!(username = virGetUserName(uid)))
> > +        goto cleanup;
> > +    if (!(groupname = virGetGroupName(gid)))
> > +        goto cleanup;
> 
> Quite cosmetic, but is there any reason why we use uid/gid variables
> rather than calling getuid/getgid directly here?

No particular reason, I'll change that.


Daniel
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