diff options
Diffstat (limited to 'sys/kern/tty_pty.c')
| -rw-r--r-- | sys/kern/tty_pty.c | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/sys/kern/tty_pty.c b/sys/kern/tty_pty.c index b324ca4a1b29..0e99e9329e0a 100644 --- a/sys/kern/tty_pty.c +++ b/sys/kern/tty_pty.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * from: @(#)tty_pty.c 7.21 (Berkeley) 5/30/91 - * $Id: tty_pty.c,v 1.4 1993/10/16 15:25:00 rgrimes Exp $ + * $Id: tty_pty.c,v 1.9 1994/01/29 04:04:26 davidg Exp $ */ /* @@ -51,6 +51,7 @@ #include "uio.h" #include "kernel.h" #include "vnode.h" +#include "signalvar.h" #if NPTY == 1 #undef NPTY @@ -59,6 +60,8 @@ #define BUFSIZ 100 /* Chunk size iomoved to/from user */ +static void ptcwakeup(struct tty *, int); + /* * pts == /dev/tty[pqrs]? * ptc == /dev/pty[pqrs]? @@ -81,8 +84,11 @@ int npty = NPTY; /* for pstat -t */ #define PF_UCNTL 0x80 /* user control mode */ /*ARGSUSED*/ +int ptsopen(dev, flag, devtype, p) dev_t dev; + int flag; + int devtype; struct proc *p; { register struct tty *tp; @@ -120,6 +126,7 @@ ptsopen(dev, flag, devtype, p) return (error); } +int ptsclose(dev, flag, mode, p) dev_t dev; int flag, mode; @@ -134,9 +141,11 @@ ptsclose(dev, flag, mode, p) return(0); } +int ptsread(dev, uio, flag) dev_t dev; struct uio *uio; + int flag; { struct proc *p = curproc; register struct tty *tp = &pt_tty[minor(dev)]; @@ -185,9 +194,11 @@ again: * Wakeups of controlling tty will happen * indirectly, when tty driver calls ptsstart. */ +int ptswrite(dev, uio, flag) dev_t dev; struct uio *uio; + int flag; { register struct tty *tp; @@ -201,6 +212,7 @@ ptswrite(dev, uio, flag) * Start output on pseudo-tty. * Wake up process selecting or sleeping for input from controlling tty. */ +void ptsstart(tp) struct tty *tp; { @@ -215,8 +227,10 @@ ptsstart(tp) ptcwakeup(tp, FREAD); } +static void ptcwakeup(tp, flag) struct tty *tp; + int flag; { struct pt_ioctl *pti = &pt_ioctl[minor(tp->t_dev)]; @@ -239,8 +253,9 @@ ptcwakeup(tp, flag) } /*ARGSUSED*/ +int #ifdef __STDC__ -ptcopen(dev_t dev, int flag, int devtype, struct proc *p) +ptcopen(int /*dev_t*/ dev, int flag, int devtype, struct proc *p) #else ptcopen(dev, flag, devtype, p) dev_t dev; @@ -267,6 +282,8 @@ ptcopen(dev, flag, devtype, p) } extern struct tty *constty; /* -hv- 06.Oct.92*/ + +int ptcclose(dev) dev_t dev; { @@ -278,16 +295,17 @@ ptcclose(dev) tp->t_oproc = 0; /* mark closed */ tp->t_session = 0; -/* XXX -hv- 6.Oct.92 this prevents the "hanging console bug" with X11 */ if (constty==tp) constty = 0; return (0); } +int ptcread(dev, uio, flag) dev_t dev; struct uio *uio; + int flag; { register struct tty *tp = &pt_tty[minor(dev)]; struct pt_ioctl *pti = &pt_ioctl[minor(dev)]; @@ -363,6 +381,7 @@ ptcread(dev, uio, flag) return (error); } +void ptsstop(tp, flush) register struct tty *tp; int flush; @@ -386,6 +405,7 @@ ptsstop(tp, flush) ptcwakeup(tp, flag); } +int ptcselect(dev, rw, p) dev_t dev; int rw; @@ -447,12 +467,14 @@ ptcselect(dev, rw, p) return (0); } +int ptcwrite(dev, uio, flag) dev_t dev; register struct uio *uio; + int flag; { register struct tty *tp = &pt_tty[minor(dev)]; - register u_char *cp; + register u_char *cp = 0; register int cc = 0; u_char locbuf[BUFSIZ]; int cnt = 0; @@ -542,15 +564,17 @@ block: } /*ARGSUSED*/ +int ptyioctl(dev, cmd, data, flag) caddr_t data; + int cmd; dev_t dev; + int flag; { register struct tty *tp = &pt_tty[minor(dev)]; register struct pt_ioctl *pti = &pt_ioctl[minor(dev)]; register u_char *cc = tp->t_cc; int stop, error; - extern ttyinput(); /* * IF CONTROLLER STTY THEN MUST FLUSH TO PREVENT A HANG. |