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authorKiyoshi Aman <kiyoshi.aman+adelie@gmail.com>2019-02-01 22:55:37 +0000
committerKiyoshi Aman <kiyoshi.aman+adelie@gmail.com>2019-02-03 18:22:05 -0600
commit5b57d28ffb6e1ef86b50f7d05d977826eae89bfe (patch)
tree154a22fe556b49e6927197336f8bf91b12eacd5e /bin/stty/key.c
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Diffstat (limited to 'bin/stty/key.c')
-rw-r--r--bin/stty/key.c332
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diff --git a/bin/stty/key.c b/bin/stty/key.c
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--- /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");
+}