Make sure username is not NULL when calling syslog from FailedLogin()

Signed-off-by: Alan Coopersmith <alan.coopersmith@sun.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/greeter/greet.c b/greeter/greet.c
index 7f235ef..1afe2f1 100644
--- a/greeter/greet.c
+++ b/greeter/greet.c
@@ -410,9 +410,14 @@ static void
 FailedLogin (struct display *d, struct greet_info *greet)
 {
 #ifdef USE_SYSLOG
+    const char *username = greet->name;
+
+    if (username == NULL)
+	username = "username unavailable";
+
     syslog(LOG_AUTHPRIV|LOG_NOTICE,
 	   "LOGIN FAILURE ON %s, %s",
-	   d->name, greet->name);
+	   d->name, username);
 #endif
     DrawFail (login);
 #ifndef USE_PAM