X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/blobdiff_plain/964bcfb1e326002ce45619586bd48de6a4e5c325..27bcf34c8933e87769861a15c27fc0629b23da4c:/usr/src/sys/kern/tty_tty.c

diff --git a/usr/src/sys/kern/tty_tty.c b/usr/src/sys/kern/tty_tty.c
index 06a25031cf..4a4b415477 100644
--- a/usr/src/sys/kern/tty_tty.c
+++ b/usr/src/sys/kern/tty_tty.c
@@ -1,57 +1,81 @@
-/*	tty_tty.c	4.3	81/03/09	*/
+/*	tty_tty.c	4.14	82/12/05	*/
 
 /*
  * Indirect driver for controlling tty.
+ *
+ * THIS IS GARBAGE: MUST SOON BE DONE WITH struct inode * IN PROC TABLE.
  */
 #include "../h/param.h"
 #include "../h/systm.h"
 #include "../h/conf.h"
 #include "../h/dir.h"
 #include "../h/user.h"
+#include "../h/ioctl.h"
 #include "../h/tty.h"
 #include "../h/proc.h"
+#include "../h/uio.h"
 
 /*ARGSUSED*/
 syopen(dev, flag)
+	dev_t dev;
+	int flag;
 {
 
-	if(u.u_ttyp == NULL || (u.u_procp->p_flag&SDETACH)) {
-		u.u_error = ENXIO;
-		return;
-	}
-	(*cdevsw[major(u.u_ttyd)].d_open)(u.u_ttyd, flag);
+	if (u.u_ttyp == NULL)
+		return (ENXIO);
+	return ((*cdevsw[major(u.u_ttyd)].d_open)(u.u_ttyd, flag));
 }
 
 /*ARGSUSED*/
-syread(dev)
+syread(dev, uio)
+	dev_t dev;
+	struct uio *uio;
 {
 
-	if (u.u_procp->p_flag&SDETACH) {
-		u.u_error = ENXIO;
-		return;
-	}
-	(*cdevsw[major(u.u_ttyd)].d_read)(u.u_ttyd);
+	if (u.u_ttyp == NULL)
+		return (ENXIO);
+	return ((*cdevsw[major(u.u_ttyd)].d_read)(u.u_ttyd, uio));
 }
 
 /*ARGSUSED*/
-sywrite(dev)
+sywrite(dev, uio)
+	dev_t dev;
+	struct uio *uio;
 {
 
-	if (u.u_procp->p_flag&SDETACH) {
-		u.u_error = ENXIO;
-		return;
-	}
-	(*cdevsw[major(u.u_ttyd)].d_write)(u.u_ttyd);
+	if (u.u_ttyp == NULL)
+		return (ENXIO);
+	return ((*cdevsw[major(u.u_ttyd)].d_write)(u.u_ttyd, uio));
 }
 
 /*ARGSUSED*/
 syioctl(dev, cmd, addr, flag)
-caddr_t addr;
+	dev_t dev;
+	int cmd;
+	caddr_t addr;
+	int flag;
+{
+
+	if (cmd == TIOCNOTTY) {
+		u.u_ttyp = 0;
+		u.u_ttyd = 0;
+		u.u_procp->p_pgrp = 0;
+		return (0);
+	}
+	if (u.u_ttyp == NULL)
+		return (ENXIO);
+	return ((*cdevsw[major(u.u_ttyd)].d_ioctl)(u.u_ttyd, cmd, addr, flag));
+}
+
+/*ARGSUSED*/
+syselect(dev, flag)
+	dev_t dev;
+	int flag;
 {
 
-	if (u.u_procp->p_flag&SDETACH) {
+	if (u.u_ttyp == NULL) {
 		u.u_error = ENXIO;
-		return;
+		return (0);
 	}
-	(*cdevsw[major(u.u_ttyd)].d_ioctl)(u.u_ttyd, cmd, addr, flag);
+	return ((*cdevsw[major(u.u_ttyd)].d_select)(u.u_ttyd, flag));
 }