Net2/usr/src/bin/stty/key.c
/*-
* Copyright (c) 1991 The Regents of the University of California.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef lint
static char sccsid[] = "@(#)key.c 5.3 (Berkeley) 6/10/91";
#endif /* not lint */
#include <sys/types.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "stty.h"
#include "extern.h"
__BEGIN_DECLS
void f_all __P((struct info *));
void f_cbreak __P((struct info *));
void f_columns __P((struct info *));
void f_dec __P((struct info *));
void f_everything __P((struct info *));
void f_extproc __P((struct info *));
void f_ispeed __P((struct info *));
void f_nl __P((struct info *));
void f_ospeed __P((struct info *));
void f_raw __P((struct info *));
void f_rows __P((struct info *));
void f_sane __P((struct info *));
void f_size __P((struct info *));
void f_speed __P((struct info *));
void f_tty __P((struct info *));
__END_DECLS
static struct key {
char *name; /* name */
void (*f) __P((struct info *)); /* function */
#define F_NEEDARG 0x01 /* needs an argument */
#define F_OFFOK 0x02 /* can turn off */
int flags;
} keys[] = {
"all", f_all, 0,
"cbreak", f_cbreak, F_OFFOK,
"cols", f_columns, F_NEEDARG,
"columns", f_columns, F_NEEDARG,
"cooked", f_sane, 0,
"dec", f_dec, 0,
"everything", f_everything, 0,
"extproc", f_extproc, F_OFFOK,
"ispeed", f_ispeed, 0,
"new", f_tty, 0,
"nl", f_nl, F_OFFOK,
"old", f_tty, 0,
"ospeed", f_ospeed, F_NEEDARG,
"raw", f_raw, F_OFFOK,
"rows", f_rows, F_NEEDARG,
"sane", f_sane, 0,
"size", f_size, 0,
"speed", f_speed, 0,
"tty", f_tty, 0,
};
ksearch(argvp, ip)
char ***argvp;
struct info *ip;
{
register struct key *kp;
register char *name;
struct key tmp;
static int c_key __P((const void *, const void *));
name = **argvp;
if (*name == '-') {
ip->off = 1;
++name;
} else
ip->off = 0;
tmp.name = name;
if (!(kp = (struct key *)bsearch(&tmp, keys,
sizeof(keys)/sizeof(struct key), sizeof(struct key), c_key)))
return(0);
if (!(kp->flags & F_OFFOK) && ip->off)
err("illegal option -- %s\n%s", name, usage);
if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp))
err("option requires an argument -- %s\n%s", name, usage);
kp->f(ip);
return(1);
}
static
c_key(a, b)
const void *a, *b;
{
return(strcmp(((struct key *)a)->name, ((struct key *)b)->name));
}
void
f_all(ip)
struct info *ip;
{
print(&ip->t, &ip->win, ip->ldisc, BSD);
}
void
f_cbreak(ip)
struct info *ip;
{
if (ip->off)
f_sane(ip);
else {
ip->t.c_iflag |= BRKINT|IXON|IMAXBEL;
ip->t.c_oflag |= OPOST;
ip->t.c_lflag |= ISIG|IEXTEN;
ip->t.c_lflag &= ~ICANON;
ip->set = 1;
}
}
void
f_columns(ip)
struct info *ip;
{
ip->win.ws_col = atoi(ip->arg);
ip->wset = 1;
}
void
f_dec(ip)
struct info *ip;
{
ip->t.c_cc[VERASE] = (u_char)0177;
ip->t.c_cc[VKILL] = CTRL('u');
ip->t.c_cc[VINTR] = CTRL('c');
ip->t.c_lflag &= ~ECHOPRT;
ip->t.c_lflag |= ECHOE|ECHOKE|ECHOCTL;
ip->t.c_iflag &= ~IXANY;
ip->set = 1;
}
void
f_everything(ip)
struct info *ip;
{
print(&ip->t, &ip->win, ip->ldisc, BSD);
}
void
f_extproc(ip)
struct info *ip;
{
int tmp;
if (ip->set) {
tmp = 1;
(void)ioctl(ip->fd, TIOCEXT, &tmp);
} else {
tmp = 0;
(void)ioctl(ip->fd, TIOCEXT, &tmp);
}
}
void
f_ispeed(ip)
struct info *ip;
{
cfsetispeed(&ip->t, atoi(ip->arg));
ip->set = 1;
}
void
f_nl(ip)
struct info *ip;
{
if (ip->off) {
ip->t.c_iflag |= ICRNL;
ip->t.c_oflag |= ONLCR;
} else {
ip->t.c_iflag &= ~ICRNL;
ip->t.c_oflag &= ~ONLCR;
}
ip->set = 1;
}
void
f_ospeed(ip)
struct info *ip;
{
cfsetospeed(&ip->t, atoi(ip->arg));
ip->set = 1;
}
void
f_raw(ip)
struct info *ip;
{
if (ip->off)
f_sane(ip);
else {
cfmakeraw(&ip->t);
ip->t.c_cflag &= ~(CSIZE|PARENB);
ip->t.c_cflag |= CS8;
ip->set = 1;
}
}
void
f_rows(ip)
struct info *ip;
{
ip->win.ws_row = atoi(ip->arg);
ip->wset = 1;
}
void
f_sane(ip)
struct info *ip;
{
ip->t.c_cflag = TTYDEF_CFLAG | (ip->t.c_cflag & CLOCAL);
ip->t.c_iflag = TTYDEF_IFLAG;
ip->t.c_iflag |= ICRNL;
/* preserve user-preference flags in lflag */
#define LKEEP (ECHOKE|ECHOE|ECHOK|ECHOPRT|ECHOCTL|ALTWERASE|TOSTOP|NOFLSH)
ip->t.c_lflag = TTYDEF_LFLAG | (ip->t.c_lflag & LKEEP);
ip->t.c_oflag = TTYDEF_OFLAG;
ip->set = 1;
}
void
f_size(ip)
struct info *ip;
{
(void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col);
}
void
f_speed(ip)
struct info *ip;
{
(void)printf("%d\n", cfgetospeed(&ip->t));
}
void
f_tty(ip)
struct info *ip;
{
int tmp;
tmp = TTYDISC;
if (ioctl(0, TIOCSETD, &tmp) < 0)
err("TIOCSETD: %s", strerror(errno));
}