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delete "disable", it wasn't documented
[unix-history] / usr / src / bin / stty / stty.c
/*-
* Copyright (c) 1989, 1991 The Regents of the University of California.
* All rights reserved.
*
* %sccs.include.redist.c%
*/
#ifndef lint
char copyright[] =
"@(#) Copyright (c) 1989, 1991 The Regents of the University of California.\n\
All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char sccsid[] = "@(#)stty.c 5.24 (Berkeley) %G%";
#endif /* not lint */
#include <sys/types.h>
#include <sys/ioctl.h>
#include <termios.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#include <string.h>
#include "stty.h"
#include "extern.h"
static void usage __P((void));
main(argc, argv)
int argc;
char **argv;
{
extern char *optarg;
extern int opterr, optind;
extern struct cchar cchars1[], cchars2[];
extern struct modes cmodes[], imodes[], lmodes[], omodes[];
register struct modes *mp;
register struct cchar *cp;
struct winsize win;
struct termios t;
enum FMT fmt;
int ch, ctl, ldisc, tmp;
ctl = STDIN_FILENO;
fmt = NOTSET;
opterr = 0;
while ((ch = getopt(argc, argv, "aef:g")) != EOF)
switch(ch) {
case 'a': /* undocumented: POSIX compatibility */
fmt = POSIX;
break;
case 'e':
fmt = BSD;
break;
case 'f':
if ((ctl = open(optarg, O_RDONLY | O_NONBLOCK)) < 0)
err(optarg);
break;
case 'g':
fmt = GFLAG;
break;
case '?':
default:
goto args;
}
args: argc -= optind;
argv += optind;
if (ioctl(ctl, TIOCGETD, &ldisc) < 0)
err("TIOCGETD: %s", strerror(errno));
if (tcgetattr(ctl, &t) < 0)
err("tcgetattr: %s", strerror(errno));
if (ioctl(ctl, TIOCGWINSZ, &win) < 0)
warn("TIOCGWINSZ: %s\n", strerror(errno));
checkredirect(); /* conversion aid */
switch(fmt) {
case NOTSET:
if (*argv)
break;
/* FALLTHROUGH */
case BSD:
case POSIX:
print(&t, &win, ldisc, fmt);
break;
case GFLAG:
gprint(&t, &win, ldisc);
break;
}
#define CHK(s) (**argv == s[0] && !strcmp(*argv, s))
for (; *argv; ++argv) {
if (CHK("-nl")) {
t.c_iflag |= ICRNL;
t.c_oflag |= ONLCR;
continue;
}
if (CHK("all")) {
print(&t, &win, ldisc, BSD);
continue;
}
if (CHK("-cbreak"))
goto reset;
if (CHK("cbreak")) {
t.c_iflag | BRKINT|IXON|IMAXBEL;
t.c_oflag |= OPOST;
t.c_lflag |= ISIG|IEXTEN;
t.c_lflag &= ~ICANON;
continue;
}
if (CHK("cols")) {
if (!*++argv)
err("option requires an argument -- cols");
goto columns;
}
if (CHK("columns")) {
if (!*++argv)
err("option requires an argument -- columns");
columns: win.ws_col = atoi(*argv);
continue;
}
if (CHK("cooked"))
goto reset;
if (CHK("dec")) {
t.c_cc[VERASE] = (u_char)0177;
t.c_cc[VKILL] = CTRL('u');
t.c_cc[VINTR] = CTRL('c');
t.c_lflag &= ~ECHOPRT;
t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
t.c_iflag &= ~IXANY;
continue;
}
if (CHK("everything")) {
print(&t, &win, ldisc, BSD);
continue;
}
if (CHK("-extproc")) {
tmp = 0;
ioctl(ctl, TIOCEXT, &tmp);
continue;
}
if (CHK("extrpc")) {
tmp = 1;
ioctl(ctl, TIOCEXT, &tmp);
continue;
}
if (CHK("ispeed")) {
if (!*++argv)
err("option requires an argument -- ispeed");
cfsetispeed(&t, atoi(*argv));
continue;
}
if (CHK("new"))
goto tty;
if (CHK("nl")) {
t.c_iflag &= ~ICRNL;
t.c_oflag &= ~ONLCR;
continue;
}
if (CHK("old"))
goto tty;
if (CHK("ospeed")) {
if (!*++argv)
err("option requires an argument -- ospeed");
cfsetospeed(&t, atoi(*argv));
continue;
}
if (CHK("-raw"))
goto reset;
if (CHK("raw")) {
cfmakeraw(&t);
t.c_cflag &= ~(CSIZE|PARENB);
t.c_cflag |= CS8;
continue;
}
if (CHK("rows")) {
if (!*++argv)
err("option requires an argument -- rows");
win.ws_row = atoi(*argv);
continue;
}
if (CHK("sane")) {
reset: t.c_cflag = TTYDEF_CFLAG | (t.c_cflag & CLOCAL);
t.c_iflag = TTYDEF_IFLAG;
t.c_iflag |= ICRNL;
/* preserve user-preference flags in lflag */
#define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
t.c_lflag = TTYDEF_LFLAG | (t.c_lflag & LKEEP);
t.c_oflag = TTYDEF_OFLAG;
continue;
}
if (CHK("size")) {
(void)printf("%d %d\n", win.ws_row, win.ws_col);
continue;
}
if (CHK("speed")) {
(void)printf("%d\n", cfgetospeed(&t));
continue;
}
if (CHK("tty")) {
tty: tmp = TTYDISC;
if (ioctl(0, TIOCSETD, &tmp) < 0)
err("TIOCSETD: %s", strerror(errno));
continue;
}
for (mp = cmodes; mp->name; ++mp)
if (CHK(mp->name)) {
t.c_cflag &= ~mp->unset;
t.c_cflag |= mp->set;
goto next;
}
for (mp = imodes; mp->name; ++mp)
if (CHK(mp->name)) {
t.c_iflag &= ~mp->unset;
t.c_iflag |= mp->set;
goto next;
}
for (mp = lmodes; mp->name; ++mp)
if (CHK(mp->name)) {
t.c_lflag &= ~mp->unset;
t.c_lflag |= mp->set;
goto next;
}
for (mp = omodes; mp->name; ++mp)
if (CHK(mp->name)) {
t.c_oflag &= ~mp->unset;
t.c_oflag |= mp->set;
goto next;
}
for (cp = cchars1; cp->name; ++cp) {
if (!CHK(cp->name))
continue;
goto ccfound;
}
for (cp = cchars2; cp->name; ++cp) {
if (!CHK(cp->name))
continue;
ccfound: if (!*++argv)
err("option requires an argument -- %s",
cp->name);
if (CHK("undef") || CHK("<undef>"))
t.c_cc[cp->sub] = _POSIX_VDISABLE;
else if (**argv == '^')
t.c_cc[cp->sub] =
((*argv)[1] == '?') ? 0177 :
((*argv)[1] == '-') ? _POSIX_VDISABLE :
(*argv)[1] & 037;
else
t.c_cc[cp->sub] = **argv;
goto next;
}
if (isdigit(**argv)) {
cfsetospeed(&t, atoi(*argv));
cfsetispeed(&t, atoi(*argv));
goto next;
}
if (!strncmp(*argv, "gfmt1", sizeof("gfmt1") - 1)) {
gread(&t, *argv + sizeof("gfmt1") - 1);
goto next;
}
err("illegal option -- %s", *argv);
next: continue;
}
if (tcsetattr(ctl, 0, &t) < 0)
err("tcsetattr: %s", strerror(errno));
if (ioctl(ctl, TIOCSWINSZ, &win) < 0)
warn("TIOCSWINSZ: %s", strerror(errno));
exit(0);
}
static void
usage()
{
(void)fprintf(stderr, "usage: stty: [-eg] [-f file] [options]\n");
exit(1);
}
Continuous source code history from original PDP-7 UNIX to FreeBSD 2, the first fully unencumbered FreeBSD release.