diff options
Diffstat (limited to 'key.c')
| -rw-r--r-- | key.c | 293 |
1 files changed, 293 insertions, 0 deletions
@@ -0,0 +1,293 @@ +/*- + * Copyright (c) 1991, 1993, 1994 + * 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 +#if 0 +static char sccsid[] = "@(#)key.c 8.3 (Berkeley) 4/2/94"; +#endif +#endif /* not lint */ + +#include <err.h> +#include <errno.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <sys/types.h> +#include <sys/ttydefaults.h> + +#include "stty.h" +#include "extern.h" + +static int c_key(const void *, const void *); +void f_all(struct info *); +void f_cbreak(struct info *); +void f_columns(struct info *); +void f_dec(struct info *); +void f_ek(struct info *); +void f_everything(struct info *); +void f_extproc(struct info *); +void f_ispeed(struct info *); +void f_nl(struct info *); +void f_ospeed(struct info *); +void f_raw(struct info *); +void f_rows(struct info *); +void f_sane(struct info *); +void f_size(struct info *); +void f_speed(struct info *); +void f_tty(struct info *); + +static struct key { + const char *name; /* name */ + void (*f)(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 }, + { "ek", f_ek, 0 }, + { "everything", f_everything, 0 }, + { "extproc", f_extproc, F_OFFOK }, + { "ispeed", f_ispeed, F_NEEDARG }, + { "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 }, +}; + +static int +c_key(const void *a, const void *b) +{ + + return (strcmp(((const struct key *)a)->name, ((const struct key *)b)->name)); +} + +int +ksearch(char ***argvp, struct info *ip) +{ + char *name; + struct key *kp, tmp; + + 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) { + warnx("illegal option -- -%s", name); + usage(); + } + if (kp->flags & F_NEEDARG && !(ip->arg = *++*argvp)) { + warnx("option requires an argument -- %s", name); + usage(); + } + kp->f(ip); + return (1); +} + +void +f_all(struct info *ip) +{ + print(&ip->t, &ip->win, ip->ldisc, BSD); +} + +void +f_cbreak(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(struct info *ip) +{ + + ip->win.ws_col = atoi(ip->arg); + ip->wset = 1; +} + +void +f_dec(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_ek(struct info *ip) +{ + + ip->t.c_cc[VERASE] = CERASE; + ip->t.c_cc[VKILL] = CKILL; + ip->set = 1; +} + +void +f_everything(struct info *ip) +{ + + print(&ip->t, &ip->win, ip->ldisc, BSD); +} + +void +f_extproc(struct info *ip) +{ + + if (ip->off) { + int tmp = 0; + (void)ioctl(ip->fd, TIOCEXT, &tmp); + } else { + int tmp = 1; + (void)ioctl(ip->fd, TIOCEXT, &tmp); + } +} + +void +f_ispeed(struct info *ip) +{ + + cfsetispeed(&ip->t, (speed_t)atoi(ip->arg)); + ip->set = 1; +} + +void +f_nl(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(struct info *ip) +{ + + cfsetospeed(&ip->t, (speed_t)atoi(ip->arg)); + ip->set = 1; +} + +void +f_raw(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(struct info *ip) +{ + + ip->win.ws_row = atoi(ip->arg); + ip->wset = 1; +} + +void +f_sane(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(struct info *ip) +{ + + (void)printf("%d %d\n", ip->win.ws_row, ip->win.ws_col); +} + +void +f_speed(struct info *ip) +{ + + (void)printf("%lu\n", (u_long)cfgetospeed(&ip->t)); +} + +void +f_tty(struct info *ip) +{ + int tmp; + + tmp = TTYDISC; + if (ioctl(ip->fd, TIOCSETD, &tmp) < 0) + err(1, "TIOCSETD"); +} |