Check where nested structs could possibly be nil before trying to access their data

Author: Brett Mack

builtin/providers/vcd/resource_vcd_network.go

@@ -212,11 +212,15 @@ func resourceVcdNetworkRead(d *schema.ResourceData, meta interface{}) error {
 
 	d.Set("name", network.OrgVDCNetwork.Name)
 	d.Set("href", network.OrgVDCNetwork.HREF)
-	d.Set("fence_mode", network.OrgVDCNetwork.Configuration.FenceMode)
-	d.Set("gateway", network.OrgVDCNetwork.Configuration.IPScopes.IPScope.Gateway)
-	d.Set("netmask", network.OrgVDCNetwork.Configuration.IPScopes.IPScope.Netmask)
-	d.Set("dns1", network.OrgVDCNetwork.Configuration.IPScopes.IPScope.DNS1)
-	d.Set("dns2", network.OrgVDCNetwork.Configuration.IPScopes.IPScope.DNS2)
+	if c := network.OrgVDCNetwork.Configuration; c != nil {
+		d.Set("fence_mode", c.FenceMode)
+		if c.IPScopes != nil {
+			d.Set("gateway", c.IPScopes.IPScope.Gateway)
+			d.Set("netmask", c.IPScopes.IPScope.Netmask)
+			d.Set("dns1", c.IPScopes.IPScope.DNS1)
+			d.Set("dns2", c.IPScopes.IPScope.DNS2)
+		}
+	}
 
 	return nil
 }