SM_FORK
set_delivery_mode(SM_FORK, e); /* option d */
case SM_FORK:
if ((WILL_BE_QUEUED(mode) || mode == SM_FORK ||
msync = mode == SM_FORK;
case SM_FORK:
if (mode == SM_FORK)
case SM_FORK: /* fork after verification */
mode = SM_FORK;