u. is gone, pcb is at p_addr; aston => signotify

[unix-history] / usr / src / sys / kern / tty_pty.c

diff --git a/usr/src/sys/kern/tty_pty.c b/usr/src/sys/kern/tty_pty.c
index 2df79d5..714e9b8 100644 (file)
--- a/usr/src/sys/kern/tty_pty.c
+++ b/usr/src/sys/kern/tty_pty.c
@@ -2,19 +2,9 @@
  * Copyright (c) 1982, 1986, 1989 The Regents of the University of California.
  * All rights reserved.
  *
  * Copyright (c) 1982, 1986, 1989 The Regents of the University of California.
  * All rights reserved.
  *

- * Redistribution and use in source and binary forms are permitted
- * provided that the above copyright notice and this paragraph are
- * duplicated in all such forms and that any documentation,
- * advertising materials, and other materials related to such
- * distribution and use acknowledge that the software was developed
- * by the University of California, Berkeley.  The name of the
- * University may not be used to endorse or promote products derived
- * from this software without specific prior written permission.
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ * %sccs.include.redist.c%

  *
  *

- *     @(#)tty_pty.c   7.8 (Berkeley) %G%
+ *     @(#)tty_pty.c   7.19 (Berkeley) %G%

  */
 
 /*
  */
 
 /*


@@ -28,7 +18,6 @@
 #include "systm.h"
 #include "ioctl.h"
 #include "tty.h"
 #include "systm.h"
 #include "ioctl.h"
 #include "tty.h"

-#include "user.h"

 #include "conf.h"
 #include "file.h"
 #include "proc.h"
 #include "conf.h"
 #include "file.h"
 #include "proc.h"


@@ -58,8 +47,6 @@ struct        pt_ioctl {
 } pt_ioctl[NPTY];
 int    npty = NPTY;            /* for pstat -t */
 
 } pt_ioctl[NPTY];
 int    npty = NPTY;            /* for pstat -t */
 

-int ptydebug = 0;
-

 #define        PF_RCOLL        0x0001
 #define        PF_WCOLL        0x0002
 #define        PF_NBIO         0x0004
 #define        PF_RCOLL        0x0001
 #define        PF_WCOLL        0x0002
 #define        PF_NBIO         0x0004


@@ -75,8 +62,9 @@ int ptydebug = 0;
 #define        PF_OWAIT        0x1000          /* waiting for PF_BLOCK to clear */
 
 /*ARGSUSED*/
 #define        PF_OWAIT        0x1000          /* waiting for PF_BLOCK to clear */
 
 /*ARGSUSED*/

-ptsopen(dev, flag)
+ptsopen(dev, flag, devtype, p)

        dev_t dev;
        dev_t dev;

+       struct proc *p;

 {
        register struct tty *tp;
        int error;
 {
        register struct tty *tp;
        int error;


@@ -88,6 +76,7 @@ ptsopen(dev, flag)
                return (ENXIO);
        tp = &pt_tty[minor(dev)];
        if ((tp->t_state & TS_ISOPEN) == 0) {
                return (ENXIO);
        tp = &pt_tty[minor(dev)];
        if ((tp->t_state & TS_ISOPEN) == 0) {

+               tp->t_state |= TS_WOPEN;

                ttychars(tp);           /* Set up default chars */
                tp->t_iflag = TTYDEF_IFLAG;
                tp->t_oflag = TTYDEF_OFLAG;
                ttychars(tp);           /* Set up default chars */
                tp->t_iflag = TTYDEF_IFLAG;
                tp->t_oflag = TTYDEF_OFLAG;


@@ -95,7 +84,7 @@ ptsopen(dev, flag)
                tp->t_cflag = TTYDEF_CFLAG;
                tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
                ttsetwater(tp);         /* would be done in xxparam() */
                tp->t_cflag = TTYDEF_CFLAG;
                tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;
                ttsetwater(tp);         /* would be done in xxparam() */

-       } else if (tp->t_state&TS_XCLUDE && u.u_uid != 0)
+       } else if (tp->t_state&TS_XCLUDE && p->p_ucred->cr_uid != 0)

                return (EBUSY);
        if (tp->t_oproc)                        /* Ctrlr still around. */
                tp->t_state |= TS_CARR_ON;
                return (EBUSY);
        if (tp->t_oproc)                        /* Ctrlr still around. */
                tp->t_state |= TS_CARR_ON;


@@ -103,7 +92,9 @@ ptsopen(dev, flag)
                tp->t_state |= TS_WOPEN;
                if (flag&FNDELAY)
                        break;
                tp->t_state |= TS_WOPEN;
                if (flag&FNDELAY)
                        break;

-               sleep((caddr_t)&tp->t_rawq, TTIPRI);
+               if (error = ttysleep(tp, (caddr_t)&tp->t_rawq, TTIPRI | PCATCH,
+                   ttopen, 0))
+                       return (error);

        }
        error = (*linesw[tp->t_line].l_open)(dev, tp, flag);
        ptcwakeup(tp, FREAD|FWRITE);
        }
        error = (*linesw[tp->t_line].l_open)(dev, tp, flag);
        ptcwakeup(tp, FREAD|FWRITE);


@@ -126,26 +117,30 @@ ptsread(dev, uio, flag)
        dev_t dev;
        struct uio *uio;
 {
        dev_t dev;
        struct uio *uio;
 {

+       struct proc *p = curproc;

        register struct tty *tp = &pt_tty[minor(dev)];
        register struct pt_ioctl *pti = &pt_ioctl[minor(dev)];
        int error = 0;
 
 again:
        if (pti->pt_flags & PF_REMOTE) {
        register struct tty *tp = &pt_tty[minor(dev)];
        register struct pt_ioctl *pti = &pt_ioctl[minor(dev)];
        int error = 0;
 
 again:
        if (pti->pt_flags & PF_REMOTE) {

-               while (tp == u.u_ttyp && 
-                      u.u_procp->p_pgrp->pg_id != tp->t_pgid){
-                       if ((u.u_procp->p_sigignore & sigmask(SIGTTIN)) ||
-                           (u.u_procp->p_sigmask & sigmask(SIGTTIN)) ||
-                           !u.u_procp->p_pgrp->pg_jobc ||
-                           u.u_procp->p_flag&SVFORK)
+               while (isbackground(p, tp)) {
+                       if ((p->p_sigignore & sigmask(SIGTTIN)) ||
+                           (p->p_sigmask & sigmask(SIGTTIN)) ||
+                           p->p_pgrp->pg_jobc == 0 ||
+                           p->p_flag&SPPWAIT)

                                return (EIO);
                                return (EIO);

-                       pgsignal(u.u_procp->p_pgrp, SIGTTIN);
-                       sleep((caddr_t)&lbolt, TTIPRI);
+                       pgsignal(p->p_pgrp, SIGTTIN, 1);
+                       if (error = ttysleep(tp, (caddr_t)&lbolt, 
+                           TTIPRI | PCATCH, ttybg, 0))
+                               return (error);

                }
                if (tp->t_canq.c_cc == 0) {
                        if (flag & IO_NDELAY)
                                return (EWOULDBLOCK);
                }
                if (tp->t_canq.c_cc == 0) {
                        if (flag & IO_NDELAY)
                                return (EWOULDBLOCK);

-                       sleep((caddr_t)&tp->t_canq, TTIPRI);
+                       if (error = ttysleep(tp, (caddr_t)&tp->t_canq,
+                           TTIPRI | PCATCH, ttyin, 0))
+                               return (error);

                        goto again;
                }
                while (tp->t_canq.c_cc > 1 && uio->uio_resid > 0)
                        goto again;
                }
                while (tp->t_canq.c_cc > 1 && uio->uio_resid > 0)


@@ -224,15 +219,19 @@ ptcwakeup(tp, flag)
                        pti->pt_selw = 0;
                        pti->pt_flags &= ~PF_WCOLL;
                }
                        pti->pt_selw = 0;
                        pti->pt_flags &= ~PF_WCOLL;
                }

-if (ptydebug) printf("WAKEUP c_cf %d\n", u.u_procp->p_pid);

                wakeup((caddr_t)&tp->t_rawq.c_cf);
        }
 }
 
 /*ARGSUSED*/
                wakeup((caddr_t)&tp->t_rawq.c_cf);
        }
 }
 
 /*ARGSUSED*/

-ptcopen(dev, flag)
+#ifdef __STDC__
+ptcopen(dev_t dev, int flag, int devtype, struct proc *p)
+#else
+ptcopen(dev, flag, devtype, p)

        dev_t dev;
        dev_t dev;

-       int flag;
+       int flag, devtype;
+       struct proc *p;
+#endif

 {
        register struct tty *tp;
        struct pt_ioctl *pti;
 {
        register struct tty *tp;
        struct pt_ioctl *pti;


@@ -244,6 +243,7 @@ ptcopen(dev, flag)
                return (EIO);
        tp->t_oproc = ptsstart;
        (void)(*linesw[tp->t_line].l_modem)(tp, 1);
                return (EIO);
        tp->t_oproc = ptsstart;
        (void)(*linesw[tp->t_line].l_modem)(tp, 1);

+       tp->t_lflag &= ~EXTPROC;

        pti = &pt_ioctl[minor(dev)];
        pti->pt_flags = 0;
        pti->pt_send = 0;
        pti = &pt_ioctl[minor(dev)];
        pti->pt_flags = 0;
        pti->pt_send = 0;


@@ -285,6 +285,11 @@ ptcread(dev, uio, flag)
                                error = ureadc((int)pti->pt_send, uio);
                                if (error)
                                        return (error);
                                error = ureadc((int)pti->pt_send, uio);
                                if (error)
                                        return (error);

+                               if (pti->pt_send & TIOCPKT_IOCTL) {
+                                       cc = MIN(uio->uio_resid,
+                                               sizeof(tp->t_termios));
+                                       uiomove(&tp->t_termios, cc, uio);
+                               }

                                pti->pt_send = 0;
                                return (0);
                        }
                                pti->pt_send = 0;
                                return (0);
                        }


@@ -315,8 +320,9 @@ ptcread(dev, uio, flag)
                        return (0);     /* EOF */
                if (flag & IO_NDELAY)
                        return (EWOULDBLOCK);
                        return (0);     /* EOF */
                if (flag & IO_NDELAY)
                        return (EWOULDBLOCK);

-if (ptydebug) printf("SLEEP(1) c_cf %d\n", u.u_procp->p_pid);
-               sleep((caddr_t)&tp->t_outq.c_cf, TTIPRI);
+               if (error = tsleep((caddr_t)&tp->t_outq.c_cf, TTIPRI | PCATCH,
+                   ttyin, 0))
+                       return (error);

        }
        if (pti->pt_flags & (PF_PKT|PF_UCNTL|PF_TIOC))
                error = ureadc(0, uio);
        }
        if (pti->pt_flags & (PF_PKT|PF_UCNTL|PF_TIOC))
                error = ureadc(0, uio);


@@ -368,13 +374,14 @@ ptsstop(tp, flush)
        ptcwakeup(tp, flag);
 }
 
        ptcwakeup(tp, flag);
 }
 

-ptcselect(dev, rw)
+ptcselect(dev, rw, p)

        dev_t dev;
        int rw;
        dev_t dev;
        int rw;

+       struct proc *p;

 {
        register struct tty *tp = &pt_tty[minor(dev)];
        struct pt_ioctl *pti = &pt_ioctl[minor(dev)];
 {
        register struct tty *tp = &pt_tty[minor(dev)];
        struct pt_ioctl *pti = &pt_ioctl[minor(dev)];

-       struct proc *p;
+       struct proc *prev;

        int s;
 
        if ((tp->t_state&TS_CARR_ON) == 0)
        int s;
 
        if ((tp->t_state&TS_CARR_ON) == 0)


@@ -400,10 +407,10 @@ ptcselect(dev, rw)
                     pti->pt_flags&PF_TIOC && pti->pt_ioc.c_cc ||
                     pti->pt_flags&PF_UCNTL && pti->pt_ucntl))
                        return (1);
                     pti->pt_flags&PF_TIOC && pti->pt_ioc.c_cc ||
                     pti->pt_flags&PF_UCNTL && pti->pt_ucntl))
                        return (1);

-               if ((p = pti->pt_selr) && p->p_wchan == (caddr_t)&selwait)
+               if ((prev = pti->pt_selr) && prev->p_wchan == (caddr_t)&selwait)

                        pti->pt_flags |= PF_RCOLL;
                else
                        pti->pt_flags |= PF_RCOLL;
                else

-                       pti->pt_selr = u.u_procp;
+                       pti->pt_selr = p;

                break;
 
 
                break;
 
 


@@ -419,10 +426,10 @@ ptcselect(dev, rw)
                                    return (1);
                        }
                }
                                    return (1);
                        }
                }

-               if ((p = pti->pt_selw) && p->p_wchan == (caddr_t)&selwait)
+               if ((prev = pti->pt_selw) && prev->p_wchan == (caddr_t)&selwait)

                        pti->pt_flags |= PF_WCOLL;
                else
                        pti->pt_flags |= PF_WCOLL;
                else

-                       pti->pt_selw = u.u_procp;
+                       pti->pt_selw = p;

                break;
 
        }
                break;
 
        }


@@ -434,10 +441,9 @@ ptcwrite(dev, uio, flag)
        register struct uio *uio;
 {
        register struct tty *tp = &pt_tty[minor(dev)];
        register struct uio *uio;
 {
        register struct tty *tp = &pt_tty[minor(dev)];

-       register struct iovec *iov;
-       register char *cp;
+       register u_char *cp;

        register int cc = 0;
        register int cc = 0;

-       char locbuf[BUFSIZ];
+       u_char locbuf[BUFSIZ];

        int cnt = 0;
        struct pt_ioctl *pti = &pt_ioctl[minor(dev)];
        int error = 0;
        int cnt = 0;
        struct pt_ioctl *pti = &pt_ioctl[minor(dev)];
        int error = 0;


@@ -448,18 +454,12 @@ again:
        if (pti->pt_flags & PF_REMOTE) {
                if (tp->t_canq.c_cc)
                        goto block;
        if (pti->pt_flags & PF_REMOTE) {
                if (tp->t_canq.c_cc)
                        goto block;

-               while (uio->uio_iovcnt > 0 && tp->t_canq.c_cc < TTYHOG - 1) {
-                       iov = uio->uio_iov;
-                       if (iov->iov_len == 0) {
-                               uio->uio_iovcnt--;      
-                               uio->uio_iov++;
-                               continue;
-                       }
+               while (uio->uio_resid > 0 && tp->t_canq.c_cc < TTYHOG - 1) {

                        if (cc == 0) {
                        if (cc == 0) {

-                               cc = MIN(iov->iov_len, BUFSIZ);
-                               cc = MIN(cc, TTYHOG - 1 - tp->t_canq.c_cc);
+                               cc = min(uio->uio_resid, BUFSIZ);
+                               cc = min(cc, TTYHOG - 1 - tp->t_canq.c_cc);

                                cp = locbuf;
                                cp = locbuf;

-                               error = uiomove(cp, cc, uio);
+                               error = uiomove((caddr_t)cp, cc, uio);

                                if (error)
                                        return (error);
                                /* check again for safety */
                                if (error)
                                        return (error);
                                /* check again for safety */


@@ -467,7 +467,7 @@ again:
                                        return (EIO);
                        }
                        if (cc)
                                        return (EIO);
                        }
                        if (cc)

-                               (void) b_to_q(cp, cc, &tp->t_canq);
+                               (void) b_to_q((char *)cp, cc, &tp->t_canq);

                        cc = 0;
                }
                (void) putc(0, &tp->t_canq);
                        cc = 0;
                }
                (void) putc(0, &tp->t_canq);


@@ -475,17 +475,11 @@ again:
                wakeup((caddr_t)&tp->t_canq);
                return (0);
        }
                wakeup((caddr_t)&tp->t_canq);
                return (0);
        }

-       while (uio->uio_iovcnt > 0) {
-               iov = uio->uio_iov;
+       while (uio->uio_resid > 0) {

                if (cc == 0) {
                if (cc == 0) {

-                       if (iov->iov_len == 0) {
-                               uio->uio_iovcnt--;      
-                               uio->uio_iov++;
-                               continue;
-                       }
-                       cc = MIN(iov->iov_len, BUFSIZ);
+                       cc = min(uio->uio_resid, BUFSIZ);

                        cp = locbuf;
                        cp = locbuf;

-                       error = uiomove(cp, cc, uio);
+                       error = uiomove((caddr_t)cp, cc, uio);

                        if (error)
                                return (error);
                        /* check again for safety */
                        if (error)
                                return (error);
                        /* check again for safety */


@@ -498,7 +492,7 @@ again:
                                wakeup((caddr_t)&tp->t_rawq);
                                goto block;
                        }
                                wakeup((caddr_t)&tp->t_rawq);
                                goto block;
                        }

-                       (*linesw[tp->t_line].l_rint)(*cp++&0377, tp);
+                       (*linesw[tp->t_line].l_rint)(*cp++, tp);

                        cnt++;
                        cc--;
                }
                        cnt++;
                        cc--;
                }


@@ -512,17 +506,19 @@ block:
         */
        if ((tp->t_state&TS_CARR_ON) == 0)
                return (EIO);
         */
        if ((tp->t_state&TS_CARR_ON) == 0)
                return (EIO);

-       if ((pti->pt_flags & PF_NBIO) || (flag & IO_NDELAY)) {
-               iov->iov_base -= cc;
-               iov->iov_len += cc;
+       if (flag & IO_NDELAY) {
+               /* adjust for data copied in but not written */

                uio->uio_resid += cc;
                uio->uio_resid += cc;

-               uio->uio_offset -= cc;

                if (cnt == 0)
                        return (EWOULDBLOCK);
                return (0);
        }
                if (cnt == 0)
                        return (EWOULDBLOCK);
                return (0);
        }

-if (ptydebug) printf("SLEEP(2) c_cf %d\n", u.u_procp->p_pid);
-       sleep((caddr_t)&tp->t_rawq.c_cf, TTOPRI);
+       if (error = tsleep((caddr_t)&tp->t_rawq.c_cf, TTOPRI | PCATCH,
+           ttyout, 0)) {
+               /* adjust for data copied in but not written */
+               uio->uio_resid += cc;
+               return (error);
+       }

        goto again;
 }
 
        goto again;
 }
 


@@ -541,6 +537,28 @@ ptyioctl(dev, cmd, data, flag)
         * IF CONTROLLER STTY THEN MUST FLUSH TO PREVENT A HANG.
         * ttywflush(tp) will hang if there are characters in the outq.
         */
         * IF CONTROLLER STTY THEN MUST FLUSH TO PREVENT A HANG.
         * ttywflush(tp) will hang if there are characters in the outq.
         */

+       if (cmd == TIOCEXT) {
+               /*
+                * When the EXTPROC bit is being toggled, we need
+                * to send an TIOCPKT_IOCTL if the packet driver
+                * is turned on.
+                */
+               if (*(int *)data) {
+                       if (pti->pt_flags & PF_PKT) {
+                               pti->pt_send |= TIOCPKT_IOCTL;
+                               ptcwakeup(tp);
+                       }
+                       tp->t_lflag |= EXTPROC;
+               } else {
+                       if ((tp->t_state & EXTPROC) &&
+                           (pti->pt_flags & PF_PKT)) {
+                               pti->pt_send |= TIOCPKT_IOCTL;
+                               ptcwakeup(tp);
+                       }
+                       tp->t_lflag &= ~EXTPROC;
+               }
+               return(0);
+       } else

        if (cdevsw[major(dev)].d_open == ptcopen) {
                if ((cmd & 0xffff) == (TIOCIOANS(0) & 0xffff)) {
                        if (!(pti->pt_flags & PF_LIOC) || pti->pt_ioc.c_cc)
        if (cdevsw[major(dev)].d_open == ptcopen) {
                if ((cmd & 0xffff) == (TIOCIOANS(0) & 0xffff)) {
                        if (!(pti->pt_flags & PF_LIOC) || pti->pt_ioc.c_cc)


@@ -551,6 +569,14 @@ ptyioctl(dev, cmd, data, flag)
                }
                switch (cmd) {
 
                }
                switch (cmd) {
 

+               case TIOCGPGRP:
+                       /*
+                        * We aviod calling ttioctl on the controller since,
+                        * in that case, tp must be the controlling terminal.
+                        */
+                       *(int *)data = tp->t_pgrp ? tp->t_pgrp->pg_id : 0;
+                       return (0);
+

                case TIOCPKT:
                        if (*(int *)data) {
                                if (pti->pt_flags & PF_UCNTL)
                case TIOCPKT:
                        if (*(int *)data) {
                                if (pti->pt_flags & PF_UCNTL)


@@ -601,13 +627,6 @@ ptyioctl(dev, cmd, data, flag)
                        ttyflush(tp, FREAD|FWRITE);
                        return (0);
 
                        ttyflush(tp, FREAD|FWRITE);
                        return (0);
 

-               case FIONBIO:
-                       if (*(int *)data)
-                               pti->pt_flags |= PF_NBIO;
-                       else
-                               pti->pt_flags &= ~PF_NBIO;
-                       return (0);
-

                case FIONREAD:
                        *(int *)data = tp->t_outq.c_cc;
                        return (0);
                case FIONREAD:
                        *(int *)data = tp->t_outq.c_cc;
                        return (0);


@@ -618,12 +637,20 @@ ptyioctl(dev, cmd, data, flag)
                case TIOCSETA:
                case TIOCSETAW:
                case TIOCSETAF:
                case TIOCSETA:
                case TIOCSETAW:
                case TIOCSETAF:

-               case JUNK_TIOCSETAS:
-               case JUNK_TIOCSETAWS:
-               case JUNK_TIOCSETAFS:

                        while (getc(&tp->t_outq) >= 0)
                                ;
                        break;
                        while (getc(&tp->t_outq) >= 0)
                                ;
                        break;

+
+               case TIOCSIG:
+                       if (*(unsigned int *)data >= NSIG)
+                               return(EINVAL);
+                       if ((tp->t_lflag&NOFLSH) == 0)
+                               ttyflush(tp, FREAD|FWRITE);
+                       pgsignal(tp->t_pgrp, *(unsigned int *)data, 1);
+                       if ((*(unsigned int *)data == SIGINFO) &&
+                           ((tp->t_lflag&NOKERNINFO) == 0))
+                               ttyinfo(tp);
+                       return(0);

                }
        } else if (pti->pt_flags & PF_TIOC) {
                while (pti->pt_flags & PF_LIOC) {
                }
        } else if (pti->pt_flags & PF_TIOC) {
                while (pti->pt_flags & PF_LIOC) {


@@ -707,7 +734,7 @@ ptyioctl(dev, cmd, data, flag)
         */
        if (linesw[tp->t_line].l_rint != ttyinput) {
                (*linesw[tp->t_line].l_close)(tp);
         */
        if (linesw[tp->t_line].l_rint != ttyinput) {
                (*linesw[tp->t_line].l_close)(tp);

-               tp->t_line = 0;
+               tp->t_line = TTYDISC;

                (void)(*linesw[tp->t_line].l_open)(dev, tp, flag);
                error = ENOTTY;
        }
                (void)(*linesw[tp->t_line].l_open)(dev, tp, flag);
                error = ENOTTY;
        }


@@ -723,6 +750,28 @@ ptyioctl(dev, cmd, data, flag)
                }
                error = ENOTTY;
        }
                }
                error = ENOTTY;
        }

+       /*
+        * If external processing and packet mode send ioctl packet.
+        */
+       if ((tp->t_lflag&EXTPROC) && (pti->pt_flags & PF_PKT)) {
+               switch(cmd) {
+               case TIOCSETA:
+               case TIOCSETAW:
+               case TIOCSETAF:
+               case TIOCSETP:
+               case TIOCSETN:
+#ifdef COMPAT_43
+               case TIOCSETC:
+               case TIOCSLTC:
+               case TIOCLBIS:
+               case TIOCLBIC:
+               case TIOCLSET:
+#endif
+                       pti->pt_send |= TIOCPKT_IOCTL;
+               default:
+                       break;
+               }
+       }

        stop = (tp->t_iflag & IXON) && CCEQ(cc[VSTOP], CTRL('s')) 
                && CCEQ(cc[VSTART], CTRL('q'));
        if (pti->pt_flags & PF_NOSTOP) {
        stop = (tp->t_iflag & IXON) && CCEQ(cc[VSTOP], CTRL('s')) 
                && CCEQ(cc[VSTART], CTRL('q'));
        if (pti->pt_flags & PF_NOSTOP) {