8527 tty buffer/queue sizes should be larger

*** 26,37 ****
  /*
   * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
   * Use is subject to license terms.
   */
  
- #pragma ident   "%Z%%M% %I%     %E% SMI" /* from S5R4 1.13 */
- 
  /*
   * Description:
   *
   * The PTEM streams module is used as a pseudo driver emulator.  Its purpose
   * is to emulate the ioctl() functions of a terminal device driver.
--- 26,35 ----
*** 104,115 ****
  
  static struct module_info ptem_info = {
          0xabcd,
          "ptem",
          0,
!         512,
!         512,
          128
  };
  
  static struct qinit ptemrinit = {
          (int (*)()) ptemrput,
--- 102,113 ----
  
  static struct module_info ptem_info = {
          0xabcd,
          "ptem",
          0,
!         _TTY_BUFSIZ,
!         _TTY_BUFSIZ,
          128
  };
  
  static struct qinit ptemrinit = {
          (int (*)()) ptemrput,
*** 199,209 ****
          }
          mop->b_datap->db_type = M_SETOPTS;
          mop->b_wptr += sizeof (struct stroptions);
          sop = (struct stroptions *)mop->b_rptr;
          sop->so_flags = SO_HIWAT | SO_LOWAT | SO_ISTTY;
!         sop->so_hiwat = 512;
          sop->so_lowat = 256;
  
          /*
           * Cross-link.
           */
--- 197,207 ----
          }
          mop->b_datap->db_type = M_SETOPTS;
          mop->b_wptr += sizeof (struct stroptions);
          sop = (struct stroptions *)mop->b_rptr;
          sop->so_flags = SO_HIWAT | SO_LOWAT | SO_ISTTY;
!         sop->so_hiwat = _TTY_BUFSIZ;
          sop->so_lowat = 256;
  
          /*
           * Cross-link.
           */
*** 480,490 ****
  
                  case M_FLUSH:
                          if (*mp->b_rptr & FLUSHW) {
                              if ((ntp->state & IS_PTSTTY) &&
                                          (*mp->b_rptr & FLUSHBAND))
!                                 flushband(q, *(mp->b_rptr + 1), FLUSHDATA);
                              else
                                  flushq(q, FLUSHDATA);
                          }
                          putnext(q, mp);
                          break;
--- 478,489 ----
  
                  case M_FLUSH:
                          if (*mp->b_rptr & FLUSHW) {
                                  if ((ntp->state & IS_PTSTTY) &&
                                      (*mp->b_rptr & FLUSHBAND))
!                                         flushband(q, *(mp->b_rptr + 1),
!                                             FLUSHDATA);
                                  else
                                          flushq(q, FLUSHDATA);
                          }
                          putnext(q, mp);
                          break;