Add missing file /.profile.

Simplify stty utility, remove unused options.

.gitignore

@@ -24,8 +24,5 @@
 *.dis
 *.0
 *.img
-sdcard.rd
-.profile
-*~
 
 Makefile.user

.profile

@@ -0,0 +1,7 @@
+echo 'erase ^?, kill ^U, intr ^C'
+stty dec
+PATH=/bin:/sbin:/etc
+export PATH
+HOME=/
+export HOME
+export TERM

src/cmd/stty/stty.1

@@ -201,8 +201,7 @@ This character is an additional character causing wakeup.
 .TP 10
 .B dec
 set all modes suitable for Digital Equipment Corp. operating systems
-users; (erase, kill, and interrupt characters to ^?, ^U, and ^C,
-decctlq and ``newcrt''.)
+users; (erase, kill, and interrupt characters to ^?, ^U, and ^C, and ``crt''.)
 .ns
 .TP 10
 .B 0
@@ -235,11 +234,6 @@ and more functionality than the basic driver is fully described in
 .IR tty (4).
 The following options apply only to it.
 .TP 10
-.B new
-Use new driver (switching flushes typeahead).
-.br
-.ns
-.TP 10
 .B crt
 Set options for a CRT (crtbs, ctlecho and, if >= 1200 baud,
 crterase and crtkill.)
@@ -276,18 +270,6 @@ Print two backspaces following the EOT character (control D).
 Control characters echo as themselves; in cooked mode EOT (control-D)
 is not echoed.
 .TP 10
-.B decctlq
-After output is suspended (normally by ^S), only a start character
-(normally ^Q) will restart it.  This is compatible with DEC's vendor
-supplied systems.
-.br
-.ns
-.TP 10
-.B \-decctlq
-After output is suspended, any character typed will restart it;
-the start character will restart output without providing any input.
-(This is the default.)
-.TP 10
 .B tostop
 Background jobs stop if they attempt terminal output.
 .br
@@ -346,9 +328,7 @@ Don't send hangup signal if carrier drops.
 .B \-nohang
 Send hangup signal to control process group when carrier drops.
 .PP
-The following special characters are applicable only to the new
-teletype driver
-and are not normally changed.
+The following special characters are not normally changed.
 .TP 10
 .BI susp \ c\fR
 set suspend process character to \fIc\fR (default control Z).

src/cmd/stty/stty.c

@@ -106,8 +106,6 @@ struct MODES lmodes[] = {
 	"-ctlecho",	0, LCTLECH,
 	"pendin",	LPENDIN, 0,
 	"-pendin",	0, LPENDIN,
-	"decctlq",	LDECCTQ, 0,
-	"-decctlq",	0, LDECCTQ,
 	"noflsh",	LNOFLSH, 0,
 	"-noflsh",	0, LNOFLSH,
 	0
@@ -223,33 +221,9 @@ args:
 
 	while (argc-- > 0) {
 		arg = *argv++;
-		if (eq("new")){
-			ldisc = NTTYDISC;
-			if (ioctl(1, TIOCSETD, &ldisc)<0)
-				perror("ioctl");
-			continue;
-		}
-		if (eq("newcrt")){
-			ldisc = NTTYDISC;
-			lmode &= ~LPRTERA;
-			lmode |= LCRTBS|LCTLECH;
-			if (mode.sg_ospeed >= B1200)
-				lmode |= LCRTERA|LCRTKIL;
-			if (ioctl(1, TIOCSETD, &ldisc)<0)
-				perror("ioctl");
-			continue;
-		}
 		if (eq("crt")){
-			lmode &= ~LPRTERA;
-			lmode |= LCRTBS|LCTLECH;
-			if (mode.sg_ospeed >= B1200)
-				lmode |= LCRTERA|LCRTKIL;
-			continue;
-		}
-		if (eq("old")){
-			ldisc = 0;
-			if (ioctl(1, TIOCSETD, &ldisc)<0)
-				perror("ioctl");
+crt:			lmode &= ~LPRTERA;
+			lmode |= LCRTBS | LCTLECH | LCRTERA | LCRTKIL;
 			continue;
 		}
 		if (eq("sane")){
@@ -261,14 +235,7 @@ args:
 			mode.sg_erase = 0177;
 			mode.sg_kill = CTRL('u');
 			tc.t_intrc = CTRL('c');
-			ldisc = NTTYDISC;
-			lmode &= ~LPRTERA;
-			lmode |= LCRTBS|LCTLECH|LDECCTQ;
-			if (mode.sg_ospeed >= B1200)
-				lmode |= LCRTERA|LCRTKIL;
-			if (ioctl(1, TIOCSETD, &ldisc)<0)
-				perror("ioctl");
-			continue;
+			goto crt;
 		}
 		for (sp = special; sp->name; sp++)
 			if (eq(sp->name)) {
@@ -387,11 +354,7 @@ prmodes(all)
 		fprintf(stderr, "net discipline, ");
 	else
 #endif
-	if (ldisc==NTTYDISC)
-		fprintf(stderr, "new tty, ");
-	else if (ldisc == 0)
-		fprintf(stderr, "old tty, ");
-	else
+	if (ldisc!=NTTYDISC)
 		fprintf(stderr, "discipline %d, ");
 
 	if(mode.sg_ispeed != mode.sg_ospeed) {
@@ -435,8 +398,7 @@ prmodes(all)
 	}
 	if (ldisc == NTTYDISC) {
 		int newcrt = (lmode & (LCTLECH|LCRTBS)) == (LCTLECH|LCRTBS) &&
-		    (lmode & (LCRTERA|LCRTKIL)) ==
-		      ((mode.sg_ospeed > B300) ? LCRTERA|LCRTKIL : 0);
+		    (lmode & (LCRTERA|LCRTKIL)) == (LCRTERA|LCRTKIL);
 		int nothing = 1;
 		if (newcrt) {
 			if (all)
@@ -468,7 +430,6 @@ prmodes(all)
 			nothing = 0;
 		}
 		lpit(LPENDIN, "-pendin ");
-		lpit(LDECCTQ, "-decctlq ");
 		lpit(LNOFLSH, "-noflsh ");
 		if (any || nothing)
 			fputc('\n', stderr);

sys/include/ioctl.h

@@ -161,7 +161,6 @@ struct ttysize {
 #define     PASS8       0x08000000
 #define     CTLECH      0x10000000          /* echo control chars as ^X */
 #define     PENDIN      0x20000000          /* tp->t_rawq needs reread */
-#define     DECCTQ      0x40000000          /* only ^Q starts after ^S */
 #define     NOFLSH      0x80000000          /* no output flush on signal */
 /* locals, from 127 down */
 #define TIOCLBIS        _IOW('t', 127, int) /* bis local mode bits */
@@ -181,7 +180,6 @@ struct ttysize {
 #define     LPASS8      ((int)(PASS8>>16))
 #define     LCTLECH     ((int)(CTLECH>>16))
 #define     LPENDIN     ((int)(PENDIN>>16))
-#define     LDECCTQ     ((int)(DECCTQ>>16))
 #define     LNOFLSH     ((int)(NOFLSH>>16))
 #define TIOCSBRK        _IO ('t', 123)      /* set break bit */
 #define TIOCCBRK        _IO ('t', 122)      /* clear break bit */

sys/kernel/tty.c

@@ -1225,13 +1225,6 @@ erasenb:
         }
     }
 endcase:
-    /*
-     * If DEC-style start/stop is enabled don't restart
-     * output until seeing the start character.
-     */
-    if (t_flags & DECCTQ && tp->t_state & TS_TTSTOP &&
-        tp->t_startc != tp->t_stopc)
-        return;
 restartoutput:
     tp->t_state &= ~TS_TTSTOP;
     tp->t_flags &= ~FLUSHO;