Fix crash in MacroProcessor::ResolveMacros.

diff --git a/lib/icinga/macroprocessor.cpp b/lib/icinga/macroprocessor.cpp
index dc7409a4f5b8ec7b87d7b1d41c71be13d9b115f6..5558c13f3816ea2b57cb1cbd950b3e25e69213b3 100644 (file)
--- a/lib/icinga/macroprocessor.cpp
+++ b/lib/icinga/macroprocessor.cpp
@@ -34,6 +34,9 @@ Value MacroProcessor::ResolveMacros(const Value& str, const std::vector<MacroRes
 {
        Value result;
 
+       if (str.IsEmpty())
+               return Empty;
+
        if (str.IsScalar()) {
                result = InternalResolveMacros(str, resolvers, cr, escapeFn, escapeMacros);
        } else if (str.IsObjectType<Array>()) {