Merged revisions 229167 via svnmerge from

https://origsvn.digium.com/svn/asterisk/branches/1.4

........
  r229167 | dvossel | 2009-11-10 11:15:57 -0600 (Tue, 10 Nov 2009) | 9 lines
  
  don't crash on log message in solaris
  
  AST-2009-006
  
  (closes issue #16206)
  Reported by: bklang
  Tested by: bklang
........


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@229168 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_iax2.c

@@ -4769,7 +4769,7 @@ static int handle_call_token(struct ast_iax2_full_hdr *fh, struct iax_ies *ies,
 	/* ----- Case 3 ----- */
 	} else { /* calltokens are not supported for this client, how do we respond? */
 		if (calltoken_required(sin, ies->username, subclass)) {
-			ast_log(LOG_ERROR, "Call rejected, CallToken Support required. If unexpected, resolve by placing address %s in the calltokenignore list or setting user %s requirecalltoken=no\n", ast_inet_ntoa(sin->sin_addr), ies->username);
+			ast_log(LOG_ERROR, "Call rejected, CallToken Support required. If unexpected, resolve by placing address %s in the calltokenignore list or setting user %s requirecalltoken=no\n", ast_inet_ntoa(sin->sin_addr), S_OR(ies->username, "guest"));
 			goto reject;
 		}
 		return 0; /* calltoken is not required for this addr, so permit it. */