24d1eb8e5f
comcontrol, having it in stty cause too many problems with existing drivers and tty access permissings of non-superuser. Asked-by: bde
289 lines
6.6 KiB
C
289 lines
6.6 KiB
C
/*-
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* Copyright (c) 1991, 1993, 1994
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)print.c 8.6 (Berkeley) 4/16/94";
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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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#include <sys/types.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <string.h>
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#include "stty.h"
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#include "extern.h"
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#include <sys/ioctl_compat.h> /* XXX NTTYDISC is too well hidden */
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static void binit __P((char *));
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static void bput __P((char *));
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static char *ccval __P((struct cchar *, int));
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void
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print(tp, wp, ldisc, fmt)
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struct termios *tp;
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struct winsize *wp;
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int ldisc;
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enum FMT fmt;
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{
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struct cchar *p;
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long tmp;
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u_char *cc;
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int cnt, ispeed, ospeed;
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char buf1[100], buf2[100];
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cnt = 0;
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/* Line discipline. */
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if (ldisc != TTYDISC) {
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switch(ldisc) {
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case NTTYDISC:
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cnt += printf("new tty disc; ");
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break;
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case SLIPDISC:
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cnt += printf("slip disc; ");
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break;
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case PPPDISC:
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cnt += printf("ppp disc; ");
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break;
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default:
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cnt += printf("#%d disc; ", ldisc);
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break;
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}
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}
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/* Line speed. */
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ispeed = cfgetispeed(tp);
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ospeed = cfgetospeed(tp);
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if (ispeed != ospeed)
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cnt +=
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printf("ispeed %d baud; ospeed %d baud;", ispeed, ospeed);
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else
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cnt += printf("speed %d baud;", ispeed);
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if (fmt >= BSD)
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cnt += printf(" %d rows; %d columns;", wp->ws_row, wp->ws_col);
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if (cnt)
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(void)printf("\n");
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#define on(f) ((tmp & (f)) != 0)
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#define put(n, f, d) \
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if (fmt >= BSD || on(f) != (d)) \
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bput((n) + on(f));
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/* "local" flags */
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tmp = tp->c_lflag;
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binit("lflags");
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put("-icanon", ICANON, 1);
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put("-isig", ISIG, 1);
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put("-iexten", IEXTEN, 1);
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put("-echo", ECHO, 1);
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put("-echoe", ECHOE, 0);
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put("-echok", ECHOK, 0);
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put("-echoke", ECHOKE, 0);
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put("-echonl", ECHONL, 0);
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put("-echoctl", ECHOCTL, 0);
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put("-echoprt", ECHOPRT, 0);
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put("-altwerase", ALTWERASE, 0);
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put("-noflsh", NOFLSH, 0);
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put("-tostop", TOSTOP, 0);
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put("-flusho", FLUSHO, 0);
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put("-pendin", PENDIN, 0);
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put("-nokerninfo", NOKERNINFO, 0);
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put("-extproc", EXTPROC, 0);
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/* input flags */
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tmp = tp->c_iflag;
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binit("iflags");
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put("-istrip", ISTRIP, 0);
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put("-icrnl", ICRNL, 1);
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put("-inlcr", INLCR, 0);
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put("-igncr", IGNCR, 0);
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put("-ixon", IXON, 1);
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put("-ixoff", IXOFF, 0);
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put("-ixany", IXANY, 1);
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put("-imaxbel", IMAXBEL, 1);
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put("-ignbrk", IGNBRK, 0);
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put("-brkint", BRKINT, 1);
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put("-inpck", INPCK, 0);
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put("-ignpar", IGNPAR, 0);
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put("-parmrk", PARMRK, 0);
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/* output flags */
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tmp = tp->c_oflag;
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binit("oflags");
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put("-opost", OPOST, 1);
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put("-onlcr", ONLCR, 1);
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put("-oxtabs", OXTABS, 1);
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/* control flags (hardware state) */
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tmp = tp->c_cflag;
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binit("cflags");
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put("-cread", CREAD, 1);
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switch(tmp&CSIZE) {
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case CS5:
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bput("cs5");
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break;
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case CS6:
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bput("cs6");
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break;
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case CS7:
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bput("cs7");
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break;
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case CS8:
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bput("cs8");
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break;
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}
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bput("-parenb" + on(PARENB));
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put("-parodd", PARODD, 0);
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put("-hupcl", HUPCL, 1);
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put("-clocal", CLOCAL, 0);
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put("-cstopb", CSTOPB, 0);
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switch(tmp & (CCTS_OFLOW | CRTS_IFLOW)) {
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case CCTS_OFLOW:
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bput("ctsflow");
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break;
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case CRTS_IFLOW:
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bput("rtsflow");
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break;
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default:
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put("-crtscts", CCTS_OFLOW | CRTS_IFLOW, 0);
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break;
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}
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put("-dsrflow", CDSR_OFLOW, 0);
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put("-dtrflow", CDTR_IFLOW, 0);
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put("-mdmbuf", MDMBUF, 0); /* XXX mdmbuf == dtrflow */
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/* special control characters */
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cc = tp->c_cc;
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if (fmt == POSIX) {
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binit("cchars");
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for (p = cchars1; p->name; ++p) {
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(void)snprintf(buf1, sizeof(buf1), "%s = %s;",
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p->name, ccval(p, cc[p->sub]));
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bput(buf1);
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}
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binit(NULL);
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} else {
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binit(NULL);
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for (p = cchars1, cnt = 0; p->name; ++p) {
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if (fmt != BSD && cc[p->sub] == p->def)
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continue;
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#define WD "%-8s"
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(void)snprintf(buf1 + cnt * 8, sizeof(buf1) - cnt * 8,
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WD, p->name);
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(void)snprintf(buf2 + cnt * 8, sizeof(buf2) - cnt * 8,
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WD, ccval(p, cc[p->sub]));
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if (++cnt == LINELENGTH / 8) {
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cnt = 0;
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(void)printf("%s\n", buf1);
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(void)printf("%s\n", buf2);
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}
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}
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if (cnt) {
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(void)printf("%s\n", buf1);
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(void)printf("%s\n", buf2);
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}
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}
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}
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static int col;
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static char *label;
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static void
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binit(lb)
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char *lb;
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{
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if (col) {
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(void)printf("\n");
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col = 0;
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}
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label = lb;
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}
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static void
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bput(s)
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char *s;
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{
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if (col == 0) {
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col = printf("%s: %s", label, s);
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return;
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}
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if ((col + strlen(s)) > LINELENGTH) {
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(void)printf("\n\t");
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col = printf("%s", s) + 8;
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return;
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}
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col += printf(" %s", s);
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}
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static char *
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ccval(p, c)
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struct cchar *p;
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int c;
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{
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static char buf[5];
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char *bp;
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if (p->sub == VMIN || p->sub == VTIME) {
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(void)snprintf(buf, sizeof(buf), "%d", c);
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return (buf);
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}
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if (c == _POSIX_VDISABLE)
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return ("<undef>");
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bp = buf;
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if (c & 0200) {
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*bp++ = 'M';
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*bp++ = '-';
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c &= 0177;
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}
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if (c == 0177) {
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*bp++ = '^';
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*bp++ = '?';
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}
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else if (c < 040) {
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*bp++ = '^';
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*bp++ = c + '@';
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}
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else
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*bp++ = c;
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*bp = '\0';
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return (buf);
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}
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