extending list of blacklisted characters for bug 309128 [More IDN DNS lookup and URL display problems], r=cbiesinger, sr=darin

netwerk/base/src/nsURLHelper.cpp

@@ -897,5 +897,14 @@ PRBool
 net_IsValidHostName(const nsCSubstring &host)
 {
     const char *end = host.EndReading();
-    return net_FindCharInSet(host.BeginReading(), end, "%/\\") == end;
+    // ctrl-chars and  !\"#%&'()*+,/;<=>?@\\^{|}\x7f
+    // if one of these chars is found return false
+    return net_FindCharInSet(host.BeginReading(), end, 
+                             "\x01\x02\x03\x04\x05\x06\x07\x08"
+                             "\x09\x0a\x0b\x0c\x0d\x0e\x0f\x10"
+                             "\x11\x12\x13\x14\x15\x16\x17\x18"
+                             "\x19\x1a\x1b\x1c\x1d\x1e\x1f\x20"
+                             "\x21\x22\x23\x25\x26\x27\x28\x29"
+                             "\x2a\x2b\x2c\x2f\x3b\x3c\x3d\x3e"
+                             "\x3f\x40\x5c\x5e\x7b\x7c\x7e\x7f") == end;
 }