refuse control characters in TXT, except for \n and \t

PowerDNS · May 17, 2013 · aef7330 · aef7330
1 parent 830281f
commit aef7330
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/pdns/dnslabeltext.rl b/pdns/dnslabeltext.rl
@@ -62,7 +62,7 @@ vector<string> segmentDNSText(const string& input )
                 }
 
                 escaped = '\\' (([^0-9]@reportEscaped) | ([0-9]{3}$reportEscapedNumber%doneEscapedNumber));
-                plain = ((extend-'\\'-'"')|'\n'|'\t') $ reportPlain;
+                plain = ((extend-cntrl-'\\'-'"')|'\n'|'\t') $ reportPlain;
                 txtElement = escaped | plain;
 
                 main := (('"' txtElement* '"' space?) >segmentBegin %segmentEnd)+;