SASL_CB_VERIFYFILE
{ SASL_CB_VERIFYFILE, &safesaslfile, NULL },
{ SASL_CB_VERIFYFILE, &safesaslfile, NULL },
case SASL_CB_VERIFYFILE:
SASL_CB_VERIFYFILE,
if (callbacks->id == SASL_CB_VERIFYFILE)
|| verifyfile_cb->id != SASL_CB_VERIFYFILE