Fix an omission in LSL that causes a viewer crash

1 files changed, 5 insertions, 0 deletions

diff --git a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
index c9d6742..3a229c2 100644
--- a/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
+++ b/OpenSim/Region/ScriptEngine/Shared/Api/Implementation/LSL_Api.cs
@@ -6363,6 +6363,11 @@ namespace OpenSim.Region.ScriptEngine.Shared.Api
                 LSLError("First parameter to llDialog needs to be a key");
                 return;
             }
+            if (buttons.Length < 1)
+            {
+                LSLError("No less than 1 button can be shown");
+                return;
+            }
             if (buttons.Length > 12)
             {
                 LSLError("No more than 12 buttons can be shown");