freebsd-nq/lib/libcurses/setterm.c
Andrey A. Chernov 4b05df4e20 Rename cDB to DB back like old good BSD curses always does,
check ultrix for example. Real place for fix will be vi(1),
wait for next commit.
1994-10-28 23:18:26 +00:00

269 lines
7.1 KiB
C

/*
* Copyright (c) 1981, 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. 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.
*/
#ifndef lint
static char sccsid[] = "@(#)setterm.c 8.7 (Berkeley) 7/27/94";
#endif /* not lint */
#include <sys/ioctl.h> /* TIOCGWINSZ on old systems. */
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "curses.h"
#undef ospeed
extern short ospeed;
static void zap __P((void));
static char *sflags[] = {
/* am bs da db eo hc in mi ms */
&AM, &BS, &DA, &DB, &EO, &HC, &IN, &MI, &MS,
/* nc ns os ul xb xn xt xs xx */
&NC, &NS, &OS, &UL, &XB, &XN, &XT, &XS, &XX
};
static char *_PC,
**sstrs[] = {
/* AL bc bt cd ce cl cm cr cs */
&AL, &BC, &BT, &CD, &CE, &CL, &CM, &CR, &CS,
/* dc DL dm do ed ei k0 k1 k2 */
&DC, &DL, &DM, &DO, &ED, &EI, &K0, &K1, &K2,
/* k3 k4 k5 k6 k7 k8 k9 ho ic */
&K3, &K4, &K5, &K6, &K7, &K8, &K9, &HO, &IC,
/* im ip kd ke kh kl kr ks ku */
&IM, &IP, &KD, &KE, &KH, &KL, &KR, &KS, &KU,
/* ll ma nd nl pc rc sc se SF */
&LL, &MA, &ND, &NL, &_PC, &RC, &SC, &SE, &SF,
/* so SR ta te ti uc ue up us */
&SO, &SR, &TA, &TE, &TI, &UC, &UE, &UP, &US,
/* vb vs ve al dl sf sr AL */
&VB, &VS, &VE, &al, &dl, &sf, &sr, &AL_PARM,
/* DL UP DO LE */
&DL_PARM, &UP_PARM, &DOWN_PARM, &LEFT_PARM,
/* RI */
&RIGHT_PARM,
};
static char *aoftspace; /* Address of _tspace for relocation */
static char tspace[2048]; /* Space for capability strings */
char *ttytype;
int
setterm(type)
register char *type;
{
static char genbuf[1024];
static char __ttytype[1024];
register int unknown;
struct winsize win;
char *p;
#ifdef DEBUG
__CTRACE("setterm: (\"%s\")\nLINES = %d, COLS = %d\n",
type, LINES, COLS);
#endif
if (type[0] == '\0')
type = "xx";
unknown = 0;
if (tgetent(genbuf, type) != 1) {
unknown++;
strcpy(genbuf, "xx|dumb:");
}
#ifdef DEBUG
__CTRACE("setterm: tty = %s\n", type);
#endif
/* Try TIOCGWINSZ, and, if it fails, the termcap entry. */
if (ioctl(STDERR_FILENO, TIOCGWINSZ, &win) != -1 &&
win.ws_row != 0 && win.ws_col != 0) {
LINES = win.ws_row;
COLS = win.ws_col;
} else {
LINES = tgetnum("li");
COLS = tgetnum("co");
}
/* POSIX 1003.2 requires that the environment override. */
if ((p = getenv("LINES")) != NULL)
LINES = strtol(p, NULL, 10);
if ((p = getenv("COLUMNS")) != NULL)
COLS = strtol(p, NULL, 10);
/*
* Want cols > 4, otherwise things will fail.
*/
if (COLS <= 4)
return (ERR);
#ifdef DEBUG
__CTRACE("setterm: LINES = %d, COLS = %d\n", LINES, COLS);
#endif
aoftspace = tspace;
zap(); /* Get terminal description. */
/* If we can't tab, we can't backtab, either. */
if (!GT)
BT = NULL;
/*
* Test for cursor motion capbility.
*
* XXX
* This is truly stupid -- tgoto returns "OOPS" if it can't
* do cursor motions.
*/
if (tgoto(CM, 0, 0)[0] == 'O') {
CA = 0;
CM = 0;
} else
CA = 1;
PC = _PC ? _PC[0] : 0;
switch(cfgetospeed(&__baset)) {
case B0: ospeed = 0; break;
case B50: ospeed = 1; break;
case B75: ospeed = 2; break;
case B110: ospeed = 3; break;
case B134: ospeed = 4; break;
case B150: ospeed = 5; break;
case B200: ospeed = 6; break;
case B300: ospeed = 7; break;
case B600: ospeed = 8; break;
case B1200: ospeed = 9; break;
case B1800: ospeed = 10; break;
case B2400: ospeed = 11; break;
case B4800: ospeed = 12; break;
case B9600: ospeed = 13; break;
#ifdef EXTA
case EXTA: ospeed = 14; break;
#endif
#ifdef EXTB
case EXTB: ospeed = 15; break;
#endif
#ifdef B57600
case B57600: ospeed = 16; break;
#endif
#ifdef B115200
case B115200: ospeed = 17; break;
#endif
}
aoftspace = tspace;
ttytype = longname(genbuf, __ttytype);
__usecs =
(AL == NULL && al == NULL || DL == NULL && dl == NULL) &&
!NS && (SC != NULL && RC != NULL || HO != NULL) &&
CS != NULL && (SR != NULL || sr != NULL);
/* If no scrolling commands, no quick change. */
__noqch = !__usecs &&
(AL == NULL && al == NULL || DL == NULL && dl == NULL);
return (unknown ? ERR : OK);
}
/*
* zap --
* Gets all the terminal flags from the termcap database.
*/
static void
zap()
{
register char *namp, ***sp;
register char **fp;
char tmp[3];
#ifdef DEBUG
register char *cp;
#endif
tmp[2] = '\0';
namp = "ambsdadbeohcinmimsncnsosulxbxnxtxsxx";
fp = sflags;
do {
*tmp = *namp;
*(tmp + 1) = *(namp + 1);
*(*fp++) = tgetflag(tmp);
#ifdef DEBUG
__CTRACE("2.2s = %s\n", namp, *fp[-1] ? "TRUE" : "FALSE");
#endif
namp += 2;
} while (*namp);
namp = "ALbcbtcdceclcmcrcsdcDLdmdoedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullmandnlpcrcscseSFsoSRtatetiucueupusvbvsvealdlsfsrALDLUPDOLERI";
sp = sstrs;
do {
*tmp = *namp;
*(tmp + 1) = *(namp + 1);
*(*sp++) = tgetstr(tmp, &aoftspace);
#ifdef DEBUG
__CTRACE("2.2s = %s", namp, *sp[-1] == NULL ? "NULL\n" : "\"");
if (*sp[-1] != NULL) {
for (cp = *sp[-1]; *cp; cp++)
__CTRACE("%s", unctrl(*cp));
__CTRACE("\"\n");
}
#endif
namp += 2;
} while (*namp);
if (XS)
SO = SE = NULL;
else {
if (tgetnum("sg") > 0)
SO = NULL;
if (tgetnum("ug") > 0)
US = NULL;
if (!SO && US) {
SO = US;
SE = UE;
}
}
}
/*
* getcap --
* Return a capability from termcap.
*/
char *
getcap(name)
char *name;
{
return (tgetstr(name, &aoftspace));
}