R_ALLOC_FILES
if (mrecv(buffer, MSGMAX) != R_ALLOC_FILES) {
(void)getmessage (buffer, R_ALLOC_FILES, &status, &file_prefix);
case R_ALLOC_FILES:
case R_ALLOC_FILES:
mputm(md, R_ALLOC_FILES, MOK, file_prefix);
mputm(md, R_ALLOC_FILES, MERRDEST, "");
mputm(md, R_ALLOC_FILES, MNOMEM, "");
(rcv_msg(svc, R_ALLOC_FILES, &status, prefix) < 0))