2 * Copyright (c) 1983, 1993
3 * The Regents of the University of California. All rights reserved.
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. All advertising materials mentioning features or use of this software
14 * must display the following acknowledgement:
15 * This product includes software developed by the University of
16 * California, Berkeley and its contributors.
17 * 4. Neither the name of the University nor the names of its contributors
18 * may be used to endorse or promote products derived from this software
19 * without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * @(#)from: subr.c 8.1 (Berkeley) 6/4/93
34 * $FreeBSD: src/libexec/getty/subr.c,v 1.16.2.1 2001/05/12 10:16:51 kris Exp $
35 * $DragonFly: src/libexec/getty/subr.c,v 1.4 2004/03/26 00:30:12 cpressey Exp $
49 #include <sys/ioctl.h>
50 #include <sys/param.h>
55 #include "pathnames.h"
60 static void compatflags (long);
67 gettable(const char *name, char *buf)
71 struct gettyflags *fp;
78 static int firsttime = 1;
80 dba[0] = _PATH_GETTYTAB;
85 * we need to strdup() anything in the strings array
86 * initially in order to simplify things later
88 for (sp = gettystrs; sp->field; sp++)
89 if (sp->value != NULL) {
90 /* handle these ones more carefully */
91 if (sp >= &gettystrs[4] && sp <= &gettystrs[6])
94 l = strlen(sp->value) + 1;
95 if ((p = malloc(l)) != NULL) {
96 strncpy(p, sp->value, l);
100 * replace, even if NULL, else we'll
101 * have problems with free()ing static mem
108 switch (cgetent(&buf, (char **)dba, (char *)name)) {
110 msg = "%s: couldn't resolve 'tc=' in gettytab '%s'";
114 msg = "%s: unknown gettytab entry '%s'";
117 msg = "%s: retrieving gettytab entry '%s': %m";
120 msg = "%s: recursive 'tc=' reference gettytab entry '%s'";
123 msg = "%s: unexpected cgetent() error for entry '%s'";
128 syslog(LOG_ERR, msg, "getty", name);
132 for (sp = gettystrs; sp->field; sp++) {
133 if ((l = cgetstr(buf, (char*)sp->field, &p)) >= 0) {
135 /* prefer existing value */
136 if (strcmp(p, sp->value) != 0)
144 } else if (l == -1) {
150 for (np = gettynums; np->field; np++) {
151 if (cgetnum(buf, (char*)np->field, &n) == -1)
159 for (fp = gettyflags; fp->field; fp++) {
160 if (cgetcap(buf, (char *)fp->field, ':') == NULL)
164 fp->value = 1 ^ fp->invrt;
169 printf("name=\"%s\", buf=\"%s\"\r\n", name, buf);
170 for (sp = gettystrs; sp->field; sp++)
171 printf("cgetstr: %s=%s\r\n", sp->field, sp->value);
172 for (np = gettynums; np->field; np++)
173 printf("cgetnum: %s=%d\r\n", np->field, np->value);
174 for (fp = gettyflags; fp->field; fp++)
175 printf("cgetflags: %s='%c' set='%c'\r\n", fp->field,
176 fp->value + '0', fp->set + '0');
183 struct gettystrs *sp;
184 struct gettynums *np;
185 struct gettyflags *fp;
187 for (sp = gettystrs; sp->field; sp++)
189 sp->defalt = strdup(sp->value);
190 for (np = gettynums; np->field; np++)
192 np->defalt = np->value;
193 for (fp = gettyflags; fp->field; fp++)
195 fp->defalt = fp->value;
197 fp->defalt = fp->invrt;
203 struct gettystrs *sp;
204 struct gettynums *np;
205 struct gettyflags *fp;
207 for (sp = gettystrs; sp->field; sp++)
209 sp->value = !sp->defalt ? sp->defalt
210 : strdup(sp->defalt);
211 for (np = gettynums; np->field; np++)
213 np->value = np->defalt;
214 for (fp = gettyflags; fp->field; fp++)
216 fp->value = fp->defalt;
221 &ER, &KL, &IN, &QU, &XN, &XF, &ET, &BK,
222 &SU, &DS, &RP, &FL, &WE, &LN, 0
227 &tmode.c_cc[VERASE], &tmode.c_cc[VKILL], &tmode.c_cc[VINTR],
228 &tmode.c_cc[VQUIT], &tmode.c_cc[VSTART], &tmode.c_cc[VSTOP],
229 &tmode.c_cc[VEOF], &tmode.c_cc[VEOL], &tmode.c_cc[VSUSP],
230 &tmode.c_cc[VDSUSP], &tmode.c_cc[VREPRINT], &tmode.c_cc[VDISCARD],
231 &tmode.c_cc[VWERASE], &tmode.c_cc[VLNEXT], 0
240 for (i = 0; charnames[i]; i++) {
245 *charvars[i] = _POSIX_VDISABLE;
249 /* Macros to clear/set/test flags. */
250 #define SET(t, f) (t) |= (f)
251 #define CLR(t, f) (t) &= ~(f)
252 #define ISSET(t, f) ((t) & (f))
257 tcflag_t iflag, oflag, cflag, lflag;
284 if (C0set && I0set && L0set && O0set) {
293 if (C1set && I1set && L1set && O1set) {
302 if (C2set && I2set && L2set && O2set) {
312 iflag = omode.c_iflag;
313 oflag = omode.c_oflag;
314 cflag = omode.c_cflag;
315 lflag = omode.c_lflag;
318 CLR(cflag, CSIZE|PARENB);
320 CLR(iflag, ISTRIP|INPCK|IGNPAR);
321 } else if (AP || EP || OP) {
323 SET(cflag, CS7|PARENB);
326 SET(iflag, INPCK|IGNPAR);
330 } else if (EP && !OP) {
331 SET(iflag, INPCK|IGNPAR);
335 } else if (AP || (EP && OP)) {
336 CLR(iflag, INPCK|IGNPAR);
339 } /* else, leave as is */
363 SET(oflag, ONLCR|OPOST);
370 SET(oflag, OXTABS|OPOST);
378 if (n == 1) { /* read mode flags */
382 CLR(cflag, CSIZE|PARENB);
430 tmode.c_iflag = iflag;
431 tmode.c_oflag = oflag;
432 tmode.c_cflag = cflag;
433 tmode.c_lflag = lflag;
438 * Old TTY => termios, snatched from <sys/kern/tty_compat.c>
441 compatflags(long flags)
443 tcflag_t iflag, oflag, cflag, lflag;
445 iflag = BRKINT|ICRNL|IMAXBEL|IXON|IXANY;
446 oflag = OPOST|ONLCR|OXTABS;
448 lflag = ICANON|ISIG|IEXTEN;
450 if (ISSET(flags, TANDEM))
454 if (ISSET(flags, ECHO))
458 if (ISSET(flags, CRMOD)) {
465 if (ISSET(flags, XTABS))
471 if (ISSET(flags, RAW)) {
473 CLR(lflag, ISIG|ICANON|IEXTEN);
476 SET(iflag, BRKINT|IXON|IMAXBEL);
477 SET(lflag, ISIG|IEXTEN);
478 if (ISSET(flags, CBREAK))
482 switch (ISSET(flags, ANYP)) {
503 /* Nothing we can do with CRTBS. */
504 if (ISSET(flags, PRTERA))
508 if (ISSET(flags, CRTERA))
512 /* Nothing we can do with TILDE. */
513 if (ISSET(flags, MDMBUF))
517 if (ISSET(flags, NOHANG))
521 if (ISSET(flags, CRTKIL))
525 if (ISSET(flags, CTLECH))
529 if (!ISSET(flags, DECCTQ))
533 CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH);
534 SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
536 if (ISSET(flags, RAW|LITOUT|PASS8)) {
539 if (!ISSET(flags, RAW|PASS8))
543 if (!ISSET(flags, RAW|LITOUT))
554 tmode.c_iflag = iflag;
555 tmode.c_oflag = oflag;
556 tmode.c_cflag = cflag;
557 tmode.c_lflag = lflag;
563 unsigned delay; /* delay in ms */
568 * below are random guesses, I can't be bothered checking
571 struct delayval crdelay[] = {
580 struct delayval nldelay[] = {
581 { 1, NL1 }, /* special, calculated */
588 struct delayval bsdelay[] = {
593 struct delayval ffdelay[] = {
599 struct delayval tbdelay[] = {
602 { 3, XTABS }, /* this is expand tabs */
612 f = adelay(CD, crdelay);
613 f |= adelay(ND, nldelay);
614 f |= adelay(FD, ffdelay);
615 f |= adelay(TD, tbdelay);
616 f |= adelay(BD, bsdelay);
621 adelay(int ms, struct delayval *dp)
625 while (dp->delay && ms > dp->delay)
631 char editedhost[MAXHOSTNAMELEN];
634 edithost(const char *pat)
636 const char *host = HN;
637 char *res = editedhost;
659 if (res == &editedhost[sizeof editedhost - 1]) {
666 strncpy(res, host, sizeof editedhost - (res - editedhost) - 1);
669 editedhost[sizeof editedhost - 1] = '\0';
672 static struct speedtab {
690 { 19, EXTA }, /* for people who say 19.2K */
693 { 7200, EXTB }, /* alternative */
708 for (sp = speedtab; sp->speed; sp++)
709 if (sp->speed == val)
712 return (B300); /* default in impossible cases */
718 static char termbuf[128] = "TERM=";
724 strlcat(termbuf, TT, sizeof(termbuf));
729 while ((q = strchr(q, ','))) {
741 * This speed select mechanism is written for the Develcon DATASWITCH.
742 * The Develcon sends a string of the form "B{speed}\n" at a predefined
743 * baud rate. This string indicates the user's actual speed.
744 * The routine below returns the terminal type mapped from derived speed.
750 { "B110", "std.110" },
751 { "B134", "std.134" },
752 { "B150", "std.150" },
753 { "B300", "std.300" },
754 { "B600", "std.600" },
755 { "B1200", "std.1200" },
756 { "B2400", "std.2400" },
757 { "B4800", "std.4800" },
758 { "B9600", "std.9600" },
759 { "B19200", "std.19200" },
767 const char *type = "default";
768 struct portselect *ps;
772 for (len = 0; len < sizeof (baud) - 1; len++) {
773 if (read(STDIN_FILENO, &c, 1) <= 0)
776 if (c == '\n' || c == '\r')
779 len = 0; /* in case of leading garbage */
783 for (ps = portspeeds; ps->ps_baud; ps++)
784 if (strcmp(ps->ps_baud, baud) == 0) {
788 sleep(2); /* wait for connection to complete */
793 * This auto-baud speed select mechanism is written for the Micom 600
794 * portselector. Selection is done by looking at how the character '\r'
795 * is garbled at the different speeds.
801 struct timeval timeout;
803 const char *type = "9600-baud";
805 (void)tcflush(0, TCIOFLUSH);
809 if (select(32, (fd_set *)&rfds, NULL, NULL, &timeout) <= 0)
811 if (read(STDIN_FILENO, &c, sizeof(char)) != sizeof(char))
814 timeout.tv_usec = 20;
815 (void) select(32, NULL, NULL, NULL, &timeout);
816 (void)tcflush(0, TCIOFLUSH);
819 case 0200: /* 300-baud */
823 case 0346: /* 1200-baud */
827 case 015: /* 2400-baud */
832 default: /* 4800-baud */
836 case 0377: /* 9600-baud */