From 0b3d54d3cd39c54b9dafb83bbbdd37dc631c1c7b Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Wed, 9 Jan 2013 22:53:11 +0100
Subject: [PATCH] Guard against portmap and rpcbind both being enabled

---
 modules/services/networking/rpcbind.nix | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/modules/services/networking/rpcbind.nix b/modules/services/networking/rpcbind.nix
index 8e3e86a515c..f82803e7519 100644
--- a/modules/services/networking/rpcbind.nix
+++ b/modules/services/networking/rpcbind.nix
@@ -29,6 +29,8 @@ let
     '';
   };
 
+  check = mkAssert (!(config.services.rpcbind.enable && config.services.portmap.enable))
+    "Portmap and rpcbind cannot both be enabled.";
 
 in
 
@@ -57,7 +59,7 @@ in
 
   ###### implementation
 
-  config = mkIf config.services.rpcbind.enable {
+  config = mkIf config.services.rpcbind.enable (check {
 
     environment.systemPackages = [ pkgs.rpcbind ];
 
@@ -77,6 +79,6 @@ in
         serviceConfig.ExecStart = "@${pkgs.rpcbind}/bin/rpcbind rpcbind";
       };
 
-  };
+  });
 
 }