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author | Kiyoshi Aman <kiyoshi.aman+adelie@gmail.com> | 2019-02-01 22:55:37 +0000 |
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committer | Kiyoshi Aman <kiyoshi.aman+adelie@gmail.com> | 2019-02-03 18:22:05 -0600 |
commit | 5b57d28ffb6e1ef86b50f7d05d977826eae89bfe (patch) | |
tree | 154a22fe556b49e6927197336f8bf91b12eacd5e /bin/stty/key.c | |
download | userland-5b57d28ffb6e1ef86b50f7d05d977826eae89bfe.tar.gz userland-5b57d28ffb6e1ef86b50f7d05d977826eae89bfe.tar.bz2 userland-5b57d28ffb6e1ef86b50f7d05d977826eae89bfe.tar.xz userland-5b57d28ffb6e1ef86b50f7d05d977826eae89bfe.zip |
initial population
Diffstat (limited to 'bin/stty/key.c')
-rw-r--r-- | bin/stty/key.c | 332 |
1 files changed, 332 insertions, 0 deletions
diff --git a/bin/stty/key.c b/bin/stty/key.c new file mode 100644 index 0000000..0094d3b --- /dev/null +++ b/bin/stty/key.c @@ -0,0 +1,332 @@ +/* $NetBSD: key.c,v 1.22 2017/01/10 20:44:05 christos Exp $ */ + +/*- + * 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. 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. + */ + +#include <sys/cdefs.h> +#ifndef lint +#if 0 +static char sccsid[] = "@(#)key.c 8.4 (Berkeley) 2/20/95"; +#else +__RCSID("$NetBSD: key.c,v 1.22 2017/01/10 20:44:05 christos Exp $"); +#endif +#endif /* not lint */ + +#include <sys/types.h> + +#include <err.h> +#include <errno.h> +#include <fcntl.h> +#include <time.h> +#include <paths.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <unistd.h> + +#include "stty.h" +#include "extern.h" + +__BEGIN_DECLS +void f_all(struct info *); +void f_cbreak(struct info *); +void f_columns(struct info *); +void f_dec(struct info *); +void f_everything(struct info *); +void f_extproc(struct info *); +void f_insane(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_ostart(struct info *); +void f_ostop(struct info *); +void f_tty(struct info *); +__END_DECLS + +static const 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 }, + { "everything", f_everything, 0 }, + { "extproc", f_extproc, F_OFFOK }, + { "insane", f_insane, 0 }, + { "ispeed", f_ispeed, F_NEEDARG }, + { "new", f_tty, 0 }, + { "nl", f_nl, F_OFFOK }, + { "old", f_tty, 0 }, + { "ospeed", f_ospeed, F_NEEDARG }, + { "ostart", f_ostart, 0 }, + { "ostop", f_ostop, 0 }, + { "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 *, const void *); + +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->queue, ip->ldisc, STTY_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_everything(struct info *ip) +{ + print(&ip->t, &ip->win, ip->queue, ip->ldisc, STTY_BSD); +} + +void +f_extproc(struct info *ip) +{ +#ifdef TIOCEXT + if (ip->off) { + int tmp = 0; + (void)ioctl(ip->fd, TIOCEXT, &tmp); + } else { + int tmp = 1; + (void)ioctl(ip->fd, TIOCEXT, &tmp); + } + ip->set = 1; +#endif +} + +void +f_insane(struct info *ip) +{ + int f, r; + + r = f = open(_PATH_URANDOM, O_RDONLY, 0); + if (f >= 0) { + r = read(f, &(ip->t), sizeof(struct termios)); + close(f); + } + if (r < 0) { + /* XXX not cryptographically secure! */ + + srandom(time(NULL)); + ip->t.c_iflag = random(); + ip->t.c_oflag = random(); + ip->t.c_cflag = random(); + ip->t.c_lflag = random(); + for (f = 0; f < NCCS; f++) { + ip->t.c_cc[f] = random() & 0xFF; + } + ip->t.c_ispeed = random(); + ip->t.c_ospeed = random(); + } + + ip->set = 1; +} + +void +f_ispeed(struct info *ip) +{ + cfsetispeed(&ip->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, 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|CRTSCTS|CDTRCTS)); + 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("%d\n", cfgetospeed(&ip->t)); +} + +/* ARGSUSED */ +void +f_tty(struct info *ip) +{ +#ifdef TTYDISC + int tmp; + + tmp = TTYDISC; + if (ioctl(0, TIOCSETD, &tmp) < 0) + err(1, "TIOCSETD"); +#endif +} + +void +f_ostart(struct info *ip) +{ + if (ioctl (0, TIOCSTART) < 0) + err(1, "TIOCSTART"); +} + +void +f_ostop(struct info *ip) +{ + if (ioctl (0, TIOCSTOP) < 0) + err(1, "TIOCSTOP"); +} |