aaf74682b9
(this is a requirement of SUSv2) - the old macro behaviour can be restored by defining _CURSES_USE_MACROS. Changed function prototypes to use ANSI style. All externally visible functions now have ANSI style declarations.
263 lines
7.1 KiB
C
263 lines
7.1 KiB
C
/* $NetBSD: setterm.c,v 1.16 2000/04/15 13:17:04 blymn Exp $ */
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/*
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* Copyright (c) 1981, 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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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)setterm.c 8.8 (Berkeley) 10/25/94";
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#else
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__RCSID("$NetBSD: setterm.c,v 1.16 2000/04/15 13:17:04 blymn Exp $");
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#endif
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#endif /* not lint */
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#include <sys/ioctl.h> /* TIOCGWINSZ on old systems. */
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#include <stdlib.h>
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#include <string.h>
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#include <termios.h>
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#include <unistd.h>
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#include "curses.h"
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#include "curses_private.h"
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static void zap __P((void));
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static char *sflags[] = {
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/* am be bs cc da eo hc hl */
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&AM, &BE, &BS, &CC, &DA, &EO, &HC, &HL,
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/* in mi ms nc ns os ul xb */
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&IN, &MI, &MS, &NC, &NS, &OS, &UL, &XB,
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/* xn xt xs xx */
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&XN, &XT, &XS, &XX
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};
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static int *svals[] = {
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/* pa Co */
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&PA, &cO, &nc
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};
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static char *_PC,
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**sstrs[] = {
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/* AC AE AL AS bc bl bt cd ce */
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&AC, &AE, &AL, &AS, &BC, &BL, &BT, &CD, &CE,
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/* cl cm cr cs dc DL dm do eA */
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&CL, &CM, &CR, &CS, &DC, &DL, &DM, &DO, &Ea,
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/* ed ei k0 k1 k2 k3 k4 k5 k6 */
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&ED, &EI, &K0, &K1, &K2, &K3, &K4, &K5, &K6,
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/* k7 k8 k9 ho ic im ip kd ke */
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&K7, &K8, &K9, &HO, &IC, &IM, &IP, &KD, &KE,
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/* kh kl kr ks ku ll ma mb md */
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&KH, &KL, &KR, &KS, &KU, &LL, &MA, &MB, &MD,
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/* me mh mk mp mr nd nl oc op */
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&ME, &MH, &MK, &MP, &MR, &ND, &NL, &OC, &OP,
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/* pc rc sc se SF so sp SR ta */
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&_PC, &RC, &SC, &SE, &SF, &SO, &SP, &SR, &TA,
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/* te ti uc ue up us vb vs ve */
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&TE, &TI, &UC, &UE, &UP, &US, &VB, &VS, &VE,
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/* AB AF al dl Ic Ip Sb Sf sf */
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&ab, &af, &al, &dl, &iC, &iP, &sB, &sF, &sf,
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/* sr AL DL UP DO */
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&sr, &AL_PARM, &DL_PARM, &UP_PARM, &DOWN_PARM,
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/* LE RI */
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&LEFT_PARM, &RIGHT_PARM,
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};
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static char *aoftspace; /* Address of _tspace for relocation */
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static char tspace[4096]; /* Space for capability strings */
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char *ttytype;
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int
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setterm(char *type)
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{
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static char genbuf[2048];
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static char __ttytype[128];
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int unknown;
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struct winsize win;
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char *p;
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#ifdef DEBUG
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__CTRACE("setterm: (\"%s\")\nLINES = %d, COLS = %d\n",
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type, LINES, COLS);
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#endif
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if (type[0] == '\0')
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type = "xx";
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unknown = 0;
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if (tgetent(genbuf, type) != 1) {
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unknown++;
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(void)strncpy(genbuf, "xx|dumb:", sizeof(genbuf) - 1);
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}
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#ifdef DEBUG
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__CTRACE("setterm: tty = %s\n", type);
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#endif
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/* Try TIOCGWINSZ, and, if it fails, the termcap entry. */
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if (ioctl(STDERR_FILENO, TIOCGWINSZ, &win) != -1 &&
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win.ws_row != 0 && win.ws_col != 0) {
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LINES = win.ws_row;
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COLS = win.ws_col;
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} else {
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LINES = tgetnum("li");
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COLS = tgetnum("co");
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}
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/* POSIX 1003.2 requires that the environment override. */
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if ((p = getenv("LINES")) != NULL)
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LINES = (int) strtol(p, NULL, 10);
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if ((p = getenv("COLUMNS")) != NULL)
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COLS = (int) strtol(p, NULL, 10);
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/*
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* Want cols > 4, otherwise things will fail.
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*/
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if (COLS <= 4)
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return (ERR);
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#ifdef DEBUG
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__CTRACE("setterm: LINES = %d, COLS = %d\n", LINES, COLS);
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#endif
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aoftspace = tspace;
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zap(); /* Get terminal description. */
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/* If we can't tab, we can't backtab, either. */
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if (!GT)
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BT = NULL;
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/*
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* Test for cursor motion capbility.
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*
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* XXX
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* This is truly stupid -- historically, tgoto returns "OOPS" if it
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* can't do cursor motions. Some systems have been fixed to return
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* a NULL pointer.
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*/
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if ((p = tgoto(CM, 0, 0)) == NULL || *p == 'O') {
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CA = 0;
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CM = 0;
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} else
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CA = 1;
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PC = _PC ? _PC[0] : 0;
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aoftspace = tspace;
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ttytype = __longname(genbuf, __ttytype);
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/* If no scrolling commands, no quick change. */
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__noqch =
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(CS == NULL || HO == NULL ||
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(SF == NULL && sf == NULL) || (SR == NULL && sr == NULL)) &&
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((AL == NULL && al == NULL) || (DL == NULL && dl == NULL));
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return (unknown ? ERR : OK);
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}
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/*
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* zap --
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* Gets all the terminal flags from the termcap database.
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*/
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static void
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zap()
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{
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char *namp, ***sp;
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int **vp;
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char **fp;
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char tmp[3];
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#ifdef DEBUG
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char *cp;
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#endif
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tmp[2] = '\0';
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namp = "ambebsccdaeohchlinmimsncnsosulxbxnxtxsxx";
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fp = sflags;
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do {
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*tmp = *namp;
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*(tmp + 1) = *(namp + 1);
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*(*fp++) = tgetflag(tmp);
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#ifdef DEBUG
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__CTRACE("%2.2s = %s\n", namp, *fp[-1] ? "TRUE" : "FALSE");
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#endif
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namp += 2;
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} while (*namp);
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namp = "paCoNC";
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vp = svals;
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do {
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*tmp = *namp;
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*(tmp + 1) = *(namp + 1);
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*(*vp++) = tgetnum(tmp);
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#ifdef DEBUG
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__CTRACE("%2.2s = %d\n", namp, *vp[-1]);
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#endif
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namp += 2;
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} while (*namp);
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namp = "acaeALasbcblbtcdceclcmcrcsdcDLdmdoeAedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullmambmdmemhmkmpmrndnlocoppcprscseSFsospSRtatetiucueupusvbvsveABAFaldlIcIpSbSfsfsrALDLUPDOLERI";
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sp = sstrs;
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do {
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*tmp = *namp;
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*(tmp + 1) = *(namp + 1);
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*(*sp++) = tgetstr(tmp, &aoftspace);
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#ifdef DEBUG
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__CTRACE("%2.2s = %s", namp, *sp[-1] == NULL ? "NULL\n" : "\"");
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if (*sp[-1] != NULL) {
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for (cp = *sp[-1]; *cp; cp++)
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__CTRACE("%s", unctrl(*cp));
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__CTRACE("\"\n");
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}
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#endif
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namp += 2;
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} while (*namp);
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if (XS)
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SO = SE = NULL;
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else {
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if (tgetnum("sg") > 0)
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SO = NULL;
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if (tgetnum("ug") > 0)
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US = NULL;
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if (!SO && US) {
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SO = US;
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SE = UE;
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}
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}
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}
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/*
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* getcap --
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* Return a capability from termcap.
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*/
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char *
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getcap(char *name)
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{
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return (tgetstr(name, &aoftspace));
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}
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