727 lines
14 KiB
C
727 lines
14 KiB
C
/*
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* Copyright (c) 1983, 1993
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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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/*static char sccsid[] = "from: @(#)subr.c 8.1 (Berkeley) 6/4/93";*/
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static char rcsid[] = "$Id: subr.c,v 1.18 1995/10/05 08:51:31 mycroft Exp $";
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#endif /* not lint */
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/*
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* Melbourne getty.
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*/
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#define COMPAT_43
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <termios.h>
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#include <sys/ioctl.h>
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#include "gettytab.h"
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#include "pathnames.h"
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#include "extern.h"
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extern struct termios tmode, omode;
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static void compatflags __P((long));
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/*
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* Get a table entry.
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*/
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void
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gettable(name, buf)
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char *name, *buf;
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{
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register struct gettystrs *sp;
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register struct gettynums *np;
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register struct gettyflags *fp;
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long n;
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char *dba[2];
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dba[0] = _PATH_GETTYTAB;
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dba[1] = 0;
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if (cgetent(&buf, dba, name) != 0)
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return;
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for (sp = gettystrs; sp->field; sp++)
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cgetstr(buf, sp->field, &sp->value);
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for (np = gettynums; np->field; np++) {
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if (cgetnum(buf, np->field, &n) == -1)
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np->set = 0;
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else {
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np->set = 1;
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np->value = n;
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}
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}
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for (fp = gettyflags; fp->field; fp++) {
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if (cgetcap(buf, fp->field, ':') == NULL)
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fp->set = 0;
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else {
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fp->set = 1;
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fp->value = 1 ^ fp->invrt;
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}
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}
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#ifdef DEBUG
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printf("name=\"%s\", buf=\"%s\"\n", name, buf);
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for (sp = gettystrs; sp->field; sp++)
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printf("cgetstr: %s=%s\n", sp->field, sp->value);
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for (np = gettynums; np->field; np++)
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printf("cgetnum: %s=%d\n", np->field, np->value);
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for (fp = gettyflags; fp->field; fp++)
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printf("cgetflags: %s='%c' set='%c'\n", fp->field,
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fp->value + '0', fp->set + '0');
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exit(1);
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#endif /* DEBUG */
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}
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void
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gendefaults()
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{
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register struct gettystrs *sp;
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register struct gettynums *np;
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register struct gettyflags *fp;
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for (sp = gettystrs; sp->field; sp++)
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if (sp->value)
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sp->defalt = sp->value;
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for (np = gettynums; np->field; np++)
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if (np->set)
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np->defalt = np->value;
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for (fp = gettyflags; fp->field; fp++)
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if (fp->set)
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fp->defalt = fp->value;
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else
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fp->defalt = fp->invrt;
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}
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void
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setdefaults()
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{
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register struct gettystrs *sp;
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register struct gettynums *np;
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register struct gettyflags *fp;
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for (sp = gettystrs; sp->field; sp++)
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if (!sp->value)
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sp->value = sp->defalt;
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for (np = gettynums; np->field; np++)
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if (!np->set)
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np->value = np->defalt;
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for (fp = gettyflags; fp->field; fp++)
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if (!fp->set)
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fp->value = fp->defalt;
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}
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static char **
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charnames[] = {
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&ER, &KL, &IN, &QU, &XN, &XF, &ET, &BK,
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&SU, &DS, &RP, &FL, &WE, &LN, 0
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};
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static char *
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charvars[] = {
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&tmode.c_cc[VERASE], &tmode.c_cc[VKILL], &tmode.c_cc[VINTR],
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&tmode.c_cc[VQUIT], &tmode.c_cc[VSTART], &tmode.c_cc[VSTOP],
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&tmode.c_cc[VEOF], &tmode.c_cc[VEOL], &tmode.c_cc[VSUSP],
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&tmode.c_cc[VDSUSP], &tmode.c_cc[VREPRINT], &tmode.c_cc[VDISCARD],
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&tmode.c_cc[VWERASE], &tmode.c_cc[VLNEXT], 0
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};
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void
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setchars()
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{
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register int i;
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register char *p;
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for (i = 0; charnames[i]; i++) {
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p = *charnames[i];
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if (p && *p)
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*charvars[i] = *p;
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else
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*charvars[i] = _POSIX_VDISABLE;
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}
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}
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/* Macros to clear/set/test flags. */
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#define SET(t, f) (t) |= (f)
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#define CLR(t, f) (t) &= ~(f)
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#define ISSET(t, f) ((t) & (f))
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void
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setflags(n)
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int n;
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{
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register tcflag_t iflag, oflag, cflag, lflag;
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#ifdef COMPAT_43
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switch (n) {
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case 0:
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if (F0set) {
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compatflags(F0);
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return;
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}
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break;
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case 1:
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if (F1set) {
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compatflags(F1);
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return;
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}
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break;
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default:
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if (F2set) {
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compatflags(F2);
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return;
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}
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break;
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}
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#endif
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switch (n) {
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case 0:
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if (C0set && I0set && L0set && O0set) {
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tmode.c_cflag = C0;
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tmode.c_iflag = I0;
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tmode.c_lflag = L0;
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tmode.c_oflag = O0;
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return;
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}
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break;
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case 1:
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if (C1set && I1set && L1set && O1set) {
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tmode.c_cflag = C1;
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tmode.c_iflag = I1;
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tmode.c_lflag = L1;
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tmode.c_oflag = O1;
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return;
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}
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break;
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default:
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if (C2set && I2set && L2set && O2set) {
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tmode.c_cflag = C2;
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tmode.c_iflag = I2;
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tmode.c_lflag = L2;
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tmode.c_oflag = O2;
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return;
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}
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break;
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}
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iflag = omode.c_iflag;
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oflag = omode.c_oflag;
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cflag = omode.c_cflag;
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lflag = omode.c_lflag;
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if (NP) {
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CLR(cflag, CSIZE|PARENB);
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SET(cflag, CS8);
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CLR(iflag, ISTRIP|INPCK|IGNPAR);
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} else if (AP || EP || OP) {
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CLR(cflag, CSIZE);
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SET(cflag, CS7|PARENB);
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SET(iflag, ISTRIP);
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if (OP && !EP) {
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SET(iflag, INPCK|IGNPAR);
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SET(cflag, PARODD);
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if (AP)
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CLR(iflag, INPCK);
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} else if (EP && !OP) {
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SET(iflag, INPCK|IGNPAR);
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CLR(cflag, PARODD);
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if (AP)
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CLR(iflag, INPCK);
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} else if (AP || EP && OP) {
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CLR(iflag, INPCK|IGNPAR);
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CLR(cflag, PARODD);
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}
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} /* else, leave as is */
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#if 0
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if (UC)
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f |= LCASE;
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#endif
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if (HC)
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SET(cflag, HUPCL);
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else
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CLR(cflag, HUPCL);
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if (MB)
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SET(cflag, MDMBUF);
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else
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CLR(cflag, MDMBUF);
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if (NL) {
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SET(iflag, ICRNL);
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SET(oflag, ONLCR|OPOST);
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} else {
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CLR(iflag, ICRNL);
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CLR(oflag, ONLCR);
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}
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if (!HT)
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SET(oflag, OXTABS|OPOST);
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else
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CLR(oflag, OXTABS);
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#ifdef XXX_DELAY
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SET(f, delaybits());
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#endif
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if (n == 1) { /* read mode flags */
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if (RW) {
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iflag = 0;
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CLR(oflag, OPOST);
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CLR(cflag, CSIZE|PARENB);
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SET(cflag, CS8);
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lflag = 0;
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} else {
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CLR(lflag, ICANON);
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}
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goto out;
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}
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if (n == 0)
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goto out;
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#if 0
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if (CB)
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SET(f, CRTBS);
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#endif
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if (CE)
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SET(lflag, ECHOE);
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else
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CLR(lflag, ECHOE);
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if (CK)
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SET(lflag, ECHOKE);
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else
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CLR(lflag, ECHOKE);
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if (PE)
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SET(lflag, ECHOPRT);
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else
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CLR(lflag, ECHOPRT);
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if (EC)
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SET(lflag, ECHO);
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else
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CLR(lflag, ECHO);
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if (XC)
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SET(lflag, ECHOCTL);
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else
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CLR(lflag, ECHOCTL);
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if (DX)
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SET(lflag, IXANY);
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else
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CLR(lflag, IXANY);
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out:
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tmode.c_iflag = iflag;
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tmode.c_oflag = oflag;
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tmode.c_cflag = cflag;
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tmode.c_lflag = lflag;
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}
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#ifdef COMPAT_43
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/*
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* Old TTY => termios, snatched from <sys/kern/tty_compat.c>
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*/
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void
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compatflags(flags)
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register long flags;
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{
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register tcflag_t iflag, oflag, cflag, lflag;
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iflag = BRKINT|ICRNL|IMAXBEL|IXON|IXANY;
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oflag = OPOST|ONLCR|OXTABS;
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cflag = CREAD;
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lflag = ICANON|ISIG|IEXTEN;
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if (ISSET(flags, TANDEM))
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SET(iflag, IXOFF);
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else
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CLR(iflag, IXOFF);
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if (ISSET(flags, ECHO))
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SET(lflag, ECHO);
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else
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CLR(lflag, ECHO);
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if (ISSET(flags, CRMOD)) {
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SET(iflag, ICRNL);
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SET(oflag, ONLCR);
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} else {
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CLR(iflag, ICRNL);
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CLR(oflag, ONLCR);
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}
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if (ISSET(flags, XTABS))
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SET(oflag, OXTABS);
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else
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CLR(oflag, OXTABS);
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if (ISSET(flags, RAW)) {
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iflag &= IXOFF;
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CLR(lflag, ISIG|ICANON|IEXTEN);
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CLR(cflag, PARENB);
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} else {
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SET(iflag, BRKINT|IXON|IMAXBEL);
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SET(lflag, ISIG|IEXTEN);
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if (ISSET(flags, CBREAK))
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CLR(lflag, ICANON);
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else
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SET(lflag, ICANON);
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switch (ISSET(flags, ANYP)) {
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case 0:
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CLR(cflag, PARENB);
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break;
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case ANYP:
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SET(cflag, PARENB);
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CLR(iflag, INPCK);
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break;
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case EVENP:
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SET(cflag, PARENB);
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SET(iflag, INPCK);
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CLR(cflag, PARODD);
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break;
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case ODDP:
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SET(cflag, PARENB);
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SET(iflag, INPCK);
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SET(cflag, PARODD);
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break;
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}
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}
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/* Nothing we can do with CRTBS. */
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if (ISSET(flags, PRTERA))
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SET(lflag, ECHOPRT);
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else
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CLR(lflag, ECHOPRT);
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if (ISSET(flags, CRTERA))
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SET(lflag, ECHOE);
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else
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CLR(lflag, ECHOE);
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/* Nothing we can do with TILDE. */
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if (ISSET(flags, MDMBUF))
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SET(cflag, MDMBUF);
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else
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CLR(cflag, MDMBUF);
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if (ISSET(flags, NOHANG))
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CLR(cflag, HUPCL);
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else
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SET(cflag, HUPCL);
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if (ISSET(flags, CRTKIL))
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SET(lflag, ECHOKE);
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else
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CLR(lflag, ECHOKE);
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if (ISSET(flags, CTLECH))
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SET(lflag, ECHOCTL);
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else
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CLR(lflag, ECHOCTL);
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if (!ISSET(flags, DECCTQ))
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SET(iflag, IXANY);
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else
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CLR(iflag, IXANY);
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CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH);
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SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
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if (ISSET(flags, RAW|LITOUT|PASS8)) {
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CLR(cflag, CSIZE);
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SET(cflag, CS8);
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if (!ISSET(flags, RAW|PASS8))
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SET(iflag, ISTRIP);
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else
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CLR(iflag, ISTRIP);
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if (!ISSET(flags, RAW|LITOUT))
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SET(oflag, OPOST);
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else
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CLR(oflag, OPOST);
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} else {
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CLR(cflag, CSIZE);
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SET(cflag, CS7);
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SET(iflag, ISTRIP);
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SET(oflag, OPOST);
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}
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tmode.c_iflag = iflag;
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tmode.c_oflag = oflag;
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tmode.c_cflag = cflag;
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tmode.c_lflag = lflag;
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}
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#endif
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#ifdef XXX_DELAY
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struct delayval {
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unsigned delay; /* delay in ms */
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int bits;
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};
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/*
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* below are random guesses, I can't be bothered checking
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*/
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struct delayval crdelay[] = {
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{ 1, CR1 },
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{ 2, CR2 },
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{ 3, CR3 },
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{ 83, CR1 },
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{ 166, CR2 },
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{ 0, CR3 },
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};
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struct delayval nldelay[] = {
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{ 1, NL1 }, /* special, calculated */
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{ 2, NL2 },
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{ 3, NL3 },
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{ 100, NL2 },
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{ 0, NL3 },
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};
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struct delayval bsdelay[] = {
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{ 1, BS1 },
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{ 0, 0 },
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};
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struct delayval ffdelay[] = {
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{ 1, FF1 },
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{ 1750, FF1 },
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{ 0, FF1 },
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};
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struct delayval tbdelay[] = {
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{ 1, TAB1 },
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{ 2, TAB2 },
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{ 3, XTABS }, /* this is expand tabs */
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{ 100, TAB1 },
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{ 0, TAB2 },
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};
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int
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delaybits()
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{
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register int f;
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f = adelay(CD, crdelay);
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f |= adelay(ND, nldelay);
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f |= adelay(FD, ffdelay);
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f |= adelay(TD, tbdelay);
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f |= adelay(BD, bsdelay);
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return (f);
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}
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int
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adelay(ms, dp)
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register ms;
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register struct delayval *dp;
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{
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if (ms == 0)
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return (0);
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while (dp->delay && ms > dp->delay)
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dp++;
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return (dp->bits);
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}
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#endif
|
|
|
|
char editedhost[32];
|
|
|
|
void
|
|
edithost(pat)
|
|
register char *pat;
|
|
{
|
|
register char *host = HN;
|
|
register char *res = editedhost;
|
|
|
|
if (!pat)
|
|
pat = "";
|
|
while (*pat) {
|
|
switch (*pat) {
|
|
|
|
case '#':
|
|
if (*host)
|
|
host++;
|
|
break;
|
|
|
|
case '@':
|
|
if (*host)
|
|
*res++ = *host++;
|
|
break;
|
|
|
|
default:
|
|
*res++ = *pat;
|
|
break;
|
|
|
|
}
|
|
if (res == &editedhost[sizeof editedhost - 1]) {
|
|
*res = '\0';
|
|
return;
|
|
}
|
|
pat++;
|
|
}
|
|
if (*host)
|
|
strncpy(res, host, sizeof editedhost - (res - editedhost) - 1);
|
|
else
|
|
*res = '\0';
|
|
editedhost[sizeof editedhost - 1] = '\0';
|
|
}
|
|
|
|
void
|
|
makeenv(env)
|
|
char *env[];
|
|
{
|
|
static char termbuf[128] = "TERM=";
|
|
register char *p, *q;
|
|
register char **ep;
|
|
|
|
ep = env;
|
|
if (TT && *TT) {
|
|
strcat(termbuf, TT);
|
|
*ep++ = termbuf;
|
|
}
|
|
if (p = EV) {
|
|
q = p;
|
|
while (q = strchr(q, ',')) {
|
|
*q++ = '\0';
|
|
*ep++ = p;
|
|
p = q;
|
|
}
|
|
if (*p)
|
|
*ep++ = p;
|
|
}
|
|
*ep = (char *)0;
|
|
}
|
|
|
|
/*
|
|
* This speed select mechanism is written for the Develcon DATASWITCH.
|
|
* The Develcon sends a string of the form "B{speed}\n" at a predefined
|
|
* baud rate. This string indicates the user's actual speed.
|
|
* The routine below returns the terminal type mapped from derived speed.
|
|
*/
|
|
struct portselect {
|
|
char *ps_baud;
|
|
char *ps_type;
|
|
} portspeeds[] = {
|
|
{ "B110", "std.110" },
|
|
{ "B134", "std.134" },
|
|
{ "B150", "std.150" },
|
|
{ "B300", "std.300" },
|
|
{ "B600", "std.600" },
|
|
{ "B1200", "std.1200" },
|
|
{ "B2400", "std.2400" },
|
|
{ "B4800", "std.4800" },
|
|
{ "B9600", "std.9600" },
|
|
{ "B19200", "std.19200" },
|
|
{ 0 }
|
|
};
|
|
|
|
char *
|
|
portselector()
|
|
{
|
|
char c, baud[20], *type = "default";
|
|
register struct portselect *ps;
|
|
int len;
|
|
|
|
alarm(5*60);
|
|
for (len = 0; len < sizeof (baud) - 1; len++) {
|
|
if (read(STDIN_FILENO, &c, 1) <= 0)
|
|
break;
|
|
c &= 0177;
|
|
if (c == '\n' || c == '\r')
|
|
break;
|
|
if (c == 'B')
|
|
len = 0; /* in case of leading garbage */
|
|
baud[len] = c;
|
|
}
|
|
baud[len] = '\0';
|
|
for (ps = portspeeds; ps->ps_baud; ps++)
|
|
if (strcmp(ps->ps_baud, baud) == 0) {
|
|
type = ps->ps_type;
|
|
break;
|
|
}
|
|
sleep(2); /* wait for connection to complete */
|
|
return (type);
|
|
}
|
|
|
|
/*
|
|
* This auto-baud speed select mechanism is written for the Micom 600
|
|
* portselector. Selection is done by looking at how the character '\r'
|
|
* is garbled at the different speeds.
|
|
*/
|
|
#include <sys/time.h>
|
|
|
|
char *
|
|
autobaud()
|
|
{
|
|
int rfds;
|
|
struct timeval timeout;
|
|
char c, *type = "9600-baud";
|
|
|
|
(void)tcflush(0, TCIOFLUSH);
|
|
rfds = 1 << 0;
|
|
timeout.tv_sec = 5;
|
|
timeout.tv_usec = 0;
|
|
if (select(32, (fd_set *)&rfds, (fd_set *)NULL,
|
|
(fd_set *)NULL, &timeout) <= 0)
|
|
return (type);
|
|
if (read(STDIN_FILENO, &c, sizeof(char)) != sizeof(char))
|
|
return (type);
|
|
timeout.tv_sec = 0;
|
|
timeout.tv_usec = 20;
|
|
(void) select(32, (fd_set *)NULL, (fd_set *)NULL,
|
|
(fd_set *)NULL, &timeout);
|
|
(void)tcflush(0, TCIOFLUSH);
|
|
switch (c & 0377) {
|
|
|
|
case 0200: /* 300-baud */
|
|
type = "300-baud";
|
|
break;
|
|
|
|
case 0346: /* 1200-baud */
|
|
type = "1200-baud";
|
|
break;
|
|
|
|
case 015: /* 2400-baud */
|
|
case 0215:
|
|
type = "2400-baud";
|
|
break;
|
|
|
|
default: /* 4800-baud */
|
|
type = "4800-baud";
|
|
break;
|
|
|
|
case 0377: /* 9600-baud */
|
|
type = "9600-baud";
|
|
break;
|
|
}
|
|
return (type);
|
|
}
|