Re: [PATCH 1/2] util: Add possibility to call virAuthGetPassword without conn object

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On Tue, Nov 27, 2012 at 02:55:11PM +0000, Daniel P. Berrange wrote:
> On Tue, Nov 27, 2012 at 03:39:16PM +0100, Peter Krempa wrote:
> > To make this function callable from code that doesn't have the conn
> > object, call the conn-dependant code only if conn was provided.
> > ---
> >  src/util/virauth.c | 13 ++++++++-----
> >  1 file changed, 8 insertions(+), 5 deletions(-)
> > 
> > diff --git a/src/util/virauth.c b/src/util/virauth.c
> > index 6d9935d..738b3c5 100644
> > --- a/src/util/virauth.c
> > +++ b/src/util/virauth.c
> > @@ -205,7 +205,8 @@ virAuthGetUsername(virConnectPtr conn,
> >  }
> > 
> > 
> > -
> > +/* if this function is called with conn == NULL, the code requesting
> > + * the password from the config file is skipped */
> >  char *
> >  virAuthGetPassword(virConnectPtr conn,
> >                     virConnectAuthPtr auth,
> > @@ -218,10 +219,12 @@ virAuthGetPassword(virConnectPtr conn,
> >      char *prompt;
> >      char *ret = NULL;
> > 
> > -    if (virAuthGetCredential(conn, servicename, "password", &ret) < 0)
> > -        return NULL;
> > -    if (ret != NULL)
> > -        return ret;
> > +    if (conn) {
> > +        if (virAuthGetCredential(conn, servicename, "password", &ret) < 0)
> > +            return NULL;
> > +        if (ret != NULL)
> > +            return ret;
> > +    }
> > 
> >      memset(&cred, 0, sizeof(virConnectCredential));
> 
> NACK, I don't think this is right. The libssh2 code that is using this
> must have a virConnectPtr instance somewhere in its callstack. We
> should fix the code to pass the connection in where needed, not skip
> this.

Or probably better is to change the API signature to take a virURIPtr
instead of a virConnectPtr, since the URI is the things that's really
wanted here.

Daniel
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