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/branches/1.4@229167 65c4cc65-6c06-0410-ace0-fbb531ad65f3

diff --git a/channels/chan_iax2.c b/channels/chan_iax2.c
index fb3c8bdc100fac9ac8ae691d3ff485fb542e2acd..d2c361dd24a22c4b00c517a357e4946cf9ec4110 100644 (file)
--- a/channels/chan_iax2.c
+++ b/channels/chan_iax2.c
@@ -4319,7 +4319,7 @@ 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. */