Avoid flooding of syslog with failing pam_putenv messages.

Signed-off-by: Andreas Schneider <anschneider@suse.de>
Signed-off-by: Günther Deschner <gd@samba.org>

diff --git a/nsswitch/pam_winbind.c b/nsswitch/pam_winbind.c
index d049bdb1e7d538bce21ac1628be6282c0502f337..62d72c291b2adabba012c93425c68f78c19dda1e 100644 (file)
--- a/nsswitch/pam_winbind.c
+++ b/nsswitch/pam_winbind.c
@@ -2428,7 +2428,7 @@ out:
         * Delete the krb5 ccname variable from the PAM environment
         * if it was set by winbind.
         */
-       if (ctx->ctrl & WINBIND_KRB5_AUTH) {
+       if ((ctx->ctrl & WINBIND_KRB5_AUTH) && pam_getenv(pamh, "KRB5CCNAME")) {
                pam_putenv(pamh, "KRB5CCNAME");
        }