--- libvirt.orig/src/virsh.c	2007-07-07 00:05:19.000000000 +0900
+++ libvirt/src/virsh.c	2007-07-17 18:21:22.000000000 +0900
@@ -1024,9 +1024,21 @@ cmdSchedinfo(vshControl * ctl, vshCmd * 
 
     /* Currently supports Xen Credit only */
     weight = vshCommandOptInt(cmd, "weight", &weightfound);
+    if ( weightfound != 0 && (weight < 1 || weight > USHRT_MAX ))
+    {
+        weightfound = 0;
+        vshError(ctl, FALSE,
+            _("weight parameter (%d) is out of range (1-65535)."), weight);
+    }
     if (weightfound) nr_inputparams++;
             
     cap    = vshCommandOptInt(cmd, "cap", &capfound);
+    if ( capfound != 0 && ( cap < 0 || cap > USHRT_MAX ))
+    {
+        capfound = 0;
+        vshError(ctl, FALSE,
+             _("cap parameter (%d) is out of range (0-65535)."), cap);
+    }
     if (capfound) nr_inputparams++;
 
     params = vshMalloc(ctl, sizeof (virSchedParameter) * nr_inputparams);