356 lines
9.5 KiB
C
356 lines
9.5 KiB
C
/* $NetBSD: setterm.c,v 1.22 2000/04/29 00:50:05 mycroft Exp $ */
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)setterm.c 8.8 (Berkeley) 10/25/94";
|
|
#else
|
|
__RCSID("$NetBSD: setterm.c,v 1.22 2000/04/29 00:50:05 mycroft Exp $");
|
|
#endif
|
|
#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"
|
|
#include "curses_private.h"
|
|
|
|
static int zap(struct tinfo *tinfo);
|
|
|
|
struct tinfo *_cursesi_genbuf;
|
|
|
|
static char *sflags[] = {
|
|
/* am ut bs cc da eo hc hl */
|
|
&AM, &UT, &BS, &CC, &DA, &EO, &HC, &HL,
|
|
/* in mi ms nc ns os ul xb */
|
|
&IN, &MI, &MS, &NC, &NS, &OS, &UL, &XB,
|
|
/* xn xt xs xx */
|
|
&XN, &XT, &XS, &XX
|
|
};
|
|
|
|
static int *svals[] = {
|
|
/* pa Co */
|
|
&PA, &cO, &nc
|
|
};
|
|
static char *_PC,
|
|
**sstrs[] = {
|
|
/* AC AE AL AS bc bl bt cd ce */
|
|
&AC, &AE, &AL, &AS, &BC, &BL, &BT, &CD, &CE,
|
|
/* cl cm cr cs dc DL dm do eA */
|
|
&CL, &CM, &CR, &CS, &DC, &DL, &DM, &DO, &Ea,
|
|
/* ed ei k0 k1 k2 k3 k4 k5 k6 */
|
|
&ED, &EI, &K0, &K1, &K2, &K3, &K4, &K5, &K6,
|
|
/* k7 k8 k9 ho ic im ip kd ke */
|
|
&K7, &K8, &K9, &HO, &IC, &IM, &IP, &KD, &KE,
|
|
/* kh kl kr ks ku ll ma mb md */
|
|
&KH, &KL, &KR, &KS, &KU, &LL, &MA, &MB, &MD,
|
|
/* me mh mk mm mo mp mr nd nl */
|
|
&ME, &MH, &MK, &MM, &MO, &MP, &MR, &ND, &NL,
|
|
/* oc op pc rc sc se SF so sp */
|
|
&OC, &OP, &_PC, &RC, &SC, &SE, &SF, &SO, &SP,
|
|
/* SR ta te ti uc ue up us vb */
|
|
&SR, &TA, &TE, &TI, &UC, &UE, &UP, &US, &VB,
|
|
/* vi vs ve AB AF al dl Ic Ip */
|
|
&VI, &VS, &VE, &ab, &af, &al, &dl, &iC, &iP,
|
|
/* Sb Sf sf sr AL DL UP */
|
|
&sB, &sF, &sf, &sr, &AL_PARM, &DL_PARM, &UP_PARM,
|
|
/* DO LE RI */
|
|
&DOWN_PARM, &LEFT_PARM, &RIGHT_PARM,
|
|
};
|
|
|
|
static char *aoftspace; /* Address of _tspace for relocation */
|
|
static char *tspace; /* Space for capability strings */
|
|
static size_t tspace_size; /* size of tspace */
|
|
|
|
char *ttytype;
|
|
attr_t __mask_OP, __mask_ME, __mask_UE, __mask_SE;
|
|
|
|
int
|
|
setterm(char *type)
|
|
{
|
|
static char __ttytype[128], cm_buff[1024], tc[1024], *tcptr;
|
|
int unknown;
|
|
size_t limit;
|
|
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 (t_getent(&_cursesi_genbuf, type) != 1) {
|
|
unknown++;
|
|
}
|
|
#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 {
|
|
if (unknown) {
|
|
LINES = -1;
|
|
COLS = -1;
|
|
} else {
|
|
LINES = t_getnum(_cursesi_genbuf, "li");
|
|
COLS = t_getnum(_cursesi_genbuf, "co");
|
|
}
|
|
|
|
}
|
|
|
|
/* POSIX 1003.2 requires that the environment override. */
|
|
if ((p = getenv("LINES")) != NULL)
|
|
LINES = (int) strtol(p, NULL, 10);
|
|
if ((p = getenv("COLUMNS")) != NULL)
|
|
COLS = (int) 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
|
|
if (!unknown) {
|
|
if (zap(_cursesi_genbuf) == ERR) /* Get terminal description.*/
|
|
return ERR;
|
|
}
|
|
|
|
/* If we can't tab, we can't backtab, either. */
|
|
if (!GT)
|
|
BT = NULL;
|
|
|
|
/*
|
|
* Test for cursor motion capability.
|
|
*
|
|
*/
|
|
if (t_goto(_cursesi_genbuf, CM, 0, 0, cm_buff, 1023) < 0) {
|
|
CA = 0;
|
|
CM = 0;
|
|
} else
|
|
CA = 1;
|
|
|
|
PC = _PC ? _PC[0] : 0;
|
|
aoftspace = tspace;
|
|
if (unknown) {
|
|
strcpy(ttytype, "dumb");
|
|
} else {
|
|
tcptr = tc;
|
|
limit = 1023;
|
|
if (t_getterm(_cursesi_genbuf, &tcptr, &limit) < 0)
|
|
return ERR;
|
|
ttytype = __longname(tc, __ttytype);
|
|
}
|
|
|
|
/* If no scrolling commands, no quick change. */
|
|
__noqch =
|
|
(CS == NULL || HO == NULL ||
|
|
(SF == NULL && sf == NULL) || (SR == NULL && sr == NULL)) &&
|
|
((AL == NULL && al == NULL) || (DL == NULL && dl == NULL));
|
|
|
|
/* Precalculate conflict info for color/attribute end commands. */
|
|
__mask_OP = __ATTRIBUTES & ~__COLOR;
|
|
if (OP != NULL) {
|
|
if (SE != NULL && !strcmp(OP, SE))
|
|
__mask_OP &= ~__STANDOUT;
|
|
if (UE != NULL && !strcmp(OP, UE))
|
|
__mask_OP &= ~__UNDERSCORE;
|
|
if (ME != NULL && !strcmp(OP, ME))
|
|
__mask_OP &= ~__TERMATTR;
|
|
}
|
|
__mask_ME = __ATTRIBUTES & ~__TERMATTR;
|
|
if (ME != NULL) {
|
|
if (SE != NULL && !strcmp(ME, SE))
|
|
__mask_ME &= ~__STANDOUT;
|
|
if (UE != NULL && !strcmp(ME, UE))
|
|
__mask_ME &= ~__UNDERSCORE;
|
|
if (OP != NULL && !strcmp(ME, OP))
|
|
__mask_ME &= ~__COLOR;
|
|
}
|
|
__mask_UE = __ATTRIBUTES & ~__UNDERSCORE;
|
|
if (UE != NULL) {
|
|
if (SE != NULL && !strcmp(UE, SE))
|
|
__mask_UE &= ~__STANDOUT;
|
|
if (ME != NULL && !strcmp(UE, ME))
|
|
__mask_UE &= ~__TERMATTR;
|
|
if (OP != NULL && !strcmp(UE, OP))
|
|
__mask_UE &= ~__COLOR;
|
|
}
|
|
__mask_SE = __ATTRIBUTES & ~__STANDOUT;
|
|
if (SE != NULL) {
|
|
if (UE != NULL && !strcmp(SE, UE))
|
|
__mask_SE &= ~__UNDERSCORE;
|
|
if (ME != NULL && !strcmp(SE, ME))
|
|
__mask_SE &= ~__TERMATTR;
|
|
if (OP != NULL && !strcmp(SE, OP))
|
|
__mask_SE &= ~__COLOR;
|
|
}
|
|
|
|
return (unknown ? ERR : OK);
|
|
}
|
|
|
|
/*
|
|
* zap --
|
|
* Gets all the terminal flags from the termcap database.
|
|
*/
|
|
static int
|
|
zap(struct tinfo *tinfo)
|
|
{
|
|
const char *nampstr, *namp;
|
|
char ***sp;
|
|
int **vp;
|
|
char **fp;
|
|
char tmp[3];
|
|
size_t i;
|
|
#ifdef DEBUG
|
|
char *cp;
|
|
#endif
|
|
tmp[2] = '\0';
|
|
|
|
namp = "amutbsccdaeohchlinmimsncnsosulxbxnxtxsxx";
|
|
fp = sflags;
|
|
do {
|
|
*tmp = *namp;
|
|
*(tmp + 1) = *(namp + 1);
|
|
*(*fp++) = t_getflag(tinfo, tmp);
|
|
#ifdef DEBUG
|
|
__CTRACE("%2.2s = %s\n", namp, *fp[-1] ? "TRUE" : "FALSE");
|
|
#endif
|
|
namp += 2;
|
|
|
|
} while (*namp);
|
|
namp = "paCoNC";
|
|
vp = svals;
|
|
do {
|
|
*tmp = *namp;
|
|
*(tmp + 1) = *(namp + 1);
|
|
*(*vp++) = t_getnum(tinfo, tmp);
|
|
#ifdef DEBUG
|
|
__CTRACE("%2.2s = %d\n", namp, *vp[-1]);
|
|
#endif
|
|
namp += 2;
|
|
|
|
} while (*namp);
|
|
|
|
/* calculate the size of tspace.... */
|
|
nampstr = "acaeALasbcblbtcdceclcmcrcsdcDLdmdoeAedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullmambmdmemhmkmmmompmrndnlocoppcprscseSFsospSRtatetiucueupusvbvivsveABAFaldlIcIpSbSfsfsrALDLUPDOLERI";
|
|
namp = nampstr;
|
|
tspace_size = 0;
|
|
do {
|
|
*tmp = *namp;
|
|
*(tmp + 1) = *(namp + 1);
|
|
t_getstr(tinfo, tmp, NULL, &i);
|
|
tspace_size += i;
|
|
namp += 2;
|
|
} while (*namp);
|
|
|
|
if ((tspace = (char *) malloc(tspace_size)) == NULL)
|
|
return ERR;
|
|
#ifdef DEBUG
|
|
__CTRACE("Allocated %d (0x%x) size buffer for tspace\n", tspace_size,
|
|
tspace_size);
|
|
#endif
|
|
aoftspace = tspace;
|
|
|
|
namp = nampstr;
|
|
sp = sstrs;
|
|
do {
|
|
*tmp = *namp;
|
|
*(tmp + 1) = *(namp + 1);
|
|
*(*sp++) = t_getstr(tinfo, tmp, &aoftspace, NULL);
|
|
#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 (t_getnum(tinfo, "sg") > 0)
|
|
SO = NULL;
|
|
if (t_getnum(tinfo, "ug") > 0)
|
|
US = NULL;
|
|
if (!SO && US) {
|
|
SO = US;
|
|
SE = UE;
|
|
}
|
|
}
|
|
|
|
return OK;
|
|
}
|
|
|
|
/*
|
|
* getcap --
|
|
* Return a capability from termcap.
|
|
*/
|
|
char *
|
|
getcap(char *name)
|
|
{
|
|
size_t ent_size, offset;
|
|
char *new_tspace;
|
|
|
|
/* verify cap exists and grab size of it at the same time */
|
|
if (t_getstr(_cursesi_genbuf, name, NULL, &ent_size) == ERR)
|
|
return ERR;
|
|
|
|
/* grow tspace to hold the new cap */
|
|
if ((new_tspace = realloc(tspace, ent_size + tspace_size)) == NULL)
|
|
return ERR;
|
|
|
|
/* point aoftspace to the same place in the newly allocated buffer */
|
|
offset = aoftspace - tspace;
|
|
tspace = new_tspace + offset;
|
|
|
|
return (t_getstr(_cursesi_genbuf, name, &aoftspace, NULL));
|
|
}
|