PAM_DISALLOW_NULL_AUTHTOK 524 source3/auth/pampass.c pam_error = pam_authenticate(pamh, PAM_SILENT | lp_null_passwords() ? 0 : PAM_DISALLOW_NULL_AUTHTOK); PAM_DISALLOW_NULL_AUTHTOK 324 source4/auth/ntlm/auth_unix.c pam_error = pam_authenticate(pamh, PAM_SILENT | allow_null_passwords ? 0 : PAM_DISALLOW_NULL_AUTHTOK);