vz: make output arguments in prlsdkGetDomainIds as optional

prlsdkGetDomainIds() returns name and uuid for specified instance.
Now output arguments can be NULL.
It allows to get only necessary info(name or uuid).

diff --git a/src/vz/vz_sdk.c b/src/vz/vz_sdk.c
index 30ea5453cc025913c2b029ea0bdfe74fdee86a5c..a47c5d68756e6203190fc04ddbff5b7ed2208bf3 100644 (file)
--- a/src/vz/vz_sdk.c
+++ b/src/vz/vz_sdk.c
@@ -346,31 +346,37 @@ prlsdkGetDomainIds(PRL_HANDLE sdkdom,
     PRL_UINT32 len;
     PRL_RESULT pret;
 
-    len = 0;
-    /* get name length */
-    pret = PrlVmCfg_GetName(sdkdom, NULL, &len);
-    prlsdkCheckRetGoto(pret, error);
+    if (name) {
+        len = 0;
+        *name = NULL;
+        /* get name length */
+        pret = PrlVmCfg_GetName(sdkdom, NULL, &len);
+        prlsdkCheckRetGoto(pret, error);
 
-    if (VIR_ALLOC_N(*name, len) < 0)
-        goto error;
+        if (VIR_ALLOC_N(*name, len) < 0)
+            goto error;
 
-    PrlVmCfg_GetName(sdkdom, *name, &len);
-    prlsdkCheckRetGoto(pret, error);
+        pret = PrlVmCfg_GetName(sdkdom, *name, &len);
+        prlsdkCheckRetGoto(pret, error);
+    }
 
-    len = sizeof(uuidstr);
-    PrlVmCfg_GetUuid(sdkdom, uuidstr, &len);
-    prlsdkCheckRetGoto(pret, error);
+    if (uuid) {
+        len = sizeof(uuidstr);
+        pret = PrlVmCfg_GetUuid(sdkdom, uuidstr, &len);
+        prlsdkCheckRetGoto(pret, error);
 
-    if (prlsdkUUIDParse(uuidstr, uuid) < 0) {
-        virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
-                       _("Domain UUID is malformed or empty"));
-        goto error;
+        if (prlsdkUUIDParse(uuidstr, uuid) < 0) {
+            virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+                           _("Domain UUID is malformed or empty"));
+            goto error;
+        }
     }
 
     return 0;
 
  error:
-    VIR_FREE(*name);
+    if (name)
+        VIR_FREE(*name);
     return -1;
 }