[Libvir] PATCH: 8/10: Fix misc mem leaks
Daniel P. Berrange
berrange at redhat.com
Thu Nov 29 17:35:12 UTC 2007
On Thu, Nov 29, 2007 at 05:28:07PM +0000, Richard W.M. Jones wrote:
> Daniel P. Berrange wrote:
>
> All ACKed except:
>
> >@@ -3808,20 +3808,13 @@ server_error (virConnectPtr conn, remote
> > dom = err->dom ? get_nonnull_domain (conn, *err->dom) : NULL;
> > net = err->net ? get_nonnull_network (conn, *err->net) : NULL;
> >
> >- /* These strings are nullable. OK to ignore the return value
> >- * of strdup since these strings are informational.
> >- */
> >- char *str1 = err->str1 ? strdup (*err->str1) : NULL;
> >- char *str2 = err->str2 ? strdup (*err->str2) : NULL;
> >- char *str3 = err->str3 ? strdup (*err->str3) : NULL;
> >-
> >- char *message = err->message ? strdup (*err->message) : NULL;
> >-
> > __virRaiseError (conn, dom, net,
> > err->domain, err->code, err->level,
> >- str1, str2, str3,
> >+ err->str1 ? *err->str1 : NULL,
> >+ err->str2 ? *err->str2 : NULL,
> >+ err->str3 ? *err->str3 : NULL,
> > err->int1, err->int2,
> >- "%s", message);
> >+ "%s", err->message ? *err->message : NULL);
> > }
> >
> > /* get_nonnull_domain and get_nonnull_network turn an on-wire
>
> Don't we need to dup these strings because the following xdr_free (in
> the caller) will free them?
No, all the params to __virRaiseError, get strdup'd inside virRaiseError
before being stored in the virError object.
/*
* Save the information about the error
*/
virResetError(to);
to->conn = conn;
to->dom = dom;
to->net = net;
to->domain = domain;
to->code = code;
to->message = str;
to->level = level;
if (str1 != NULL)
to->str1 = strdup(str1);
if (str2 != NULL)
to->str2 = strdup(str2);
if (str3 != NULL)
to->str3 = strdup(str3);
to->int1 = int1;
to->int2 = int2;
And the 'msg' arg gets re-allocated as the va-args are procssed with
vsnprintf, so there's no need for the virRaiseError caller to strdup
stuff itself
Dan.
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