u_defrc
unsigned u_defrc; /* # of ranges in defaults */
for (i = up->u_defrc; !got_id && i < up->u_rc ; i++) {
for (i = 0; !got_id && i < up->u_defrc; i++) {
for (i = (up->u_defrc != up->u_rc) ? up->u_defrc : 0;
up->u_defrc = 0;
up->u_defrc = up->u_rc;