240 lines
6.2 KiB
C
240 lines
6.2 KiB
C
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/*
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* Copyright (c) 1981 Regents of the University of California.
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* 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[] = "@(#)cr_tty.c 5.8 (Berkeley) 6/1/90";
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#endif /* not lint */
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/*
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* Terminal initialization routines.
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*
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*/
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# include "curses.ext"
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static bool *sflags[] = {
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&AM, &BS, &DA, &DB, &EO, &HC, &HZ, &IN, &MI,
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&MS, &NC, &NS, &OS, &UL, &XB, &XN, &XT, &XS,
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&XX
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};
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static char *_PC,
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**sstrs[] = {
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&AL, &BC, &BT, &CD, &CE, &CL, &CM, &CR, &CS,
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&DC, &DL, &DM, &DO, &ED, &EI, &K0, &K1, &K2,
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&K3, &K4, &K5, &K6, &K7, &K8, &K9, &HO, &IC,
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&IM, &IP, &KD, &KE, &KH, &KL, &KR, &KS, &KU,
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&LL, &MA, &ND, &NL, &_PC, &RC, &SC, &SE, &SF,
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&SO, &SR, &TA, &TE, &TI, &UC, &UE, &UP, &US,
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&VB, &VS, &VE, &AL_PARM, &DL_PARM, &UP_PARM,
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&DOWN_PARM, &LEFT_PARM, &RIGHT_PARM,
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};
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extern char *tgoto();
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char _tspace[2048]; /* Space for capability strings */
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static char *aoftspace; /* Address of _tspace for relocation */
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static int destcol, destline;
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/*
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* This routine does terminal type initialization routines, and
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* calculation of flags at entry. It is almost entirely stolen from
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* Bill Joy's ex version 2.6.
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*/
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short ospeed = -1;
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gettmode() {
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if (ioctl(_tty_ch, TIOCGETP, &_tty) < 0)
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return;
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savetty();
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if (ioctl(_tty_ch, TIOCSETP, &_tty) < 0)
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_tty.sg_flags = _res_flg;
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ospeed = _tty.sg_ospeed;
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_res_flg = _tty.sg_flags;
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UPPERCASE = (_tty.sg_flags & LCASE) != 0;
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GT = ((_tty.sg_flags & XTABS) == 0);
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NONL = ((_tty.sg_flags & CRMOD) == 0);
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_tty.sg_flags &= ~XTABS;
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ioctl(_tty_ch, TIOCSETP, &_tty);
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# ifdef DEBUG
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fprintf(outf, "GETTMODE: UPPERCASE = %s\n", UPPERCASE ? "TRUE":"FALSE");
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fprintf(outf, "GETTMODE: GT = %s\n", GT ? "TRUE" : "FALSE");
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fprintf(outf, "GETTMODE: NONL = %s\n", NONL ? "TRUE" : "FALSE");
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fprintf(outf, "GETTMODE: ospeed = %d\n", ospeed);
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# endif
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}
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setterm(type)
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reg char *type; {
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reg int unknown;
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static char genbuf[1024];
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# ifdef TIOCGWINSZ
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struct winsize win;
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# endif
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# ifdef DEBUG
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fprintf(outf, "SETTERM(\"%s\")\n", type);
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fprintf(outf, "SETTERM: LINES = %d, COLS = %d\n", 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 = FALSE;
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if (tgetent(genbuf, type) != 1) {
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unknown++;
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strcpy(genbuf, "xx|dumb:");
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}
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# ifdef DEBUG
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fprintf(outf, "SETTERM: tty = %s\n", type);
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# endif
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# ifdef TIOCGWINSZ
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if (ioctl(_tty_ch, TIOCGWINSZ, &win) >= 0) {
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if (LINES == 0)
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LINES = win.ws_row;
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if (COLS == 0)
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COLS = win.ws_col;
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}
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# endif
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if (LINES == 0)
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LINES = tgetnum("li");
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if (LINES <= 5)
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LINES = 24;
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if (COLS == 0)
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COLS = tgetnum("co");
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if (COLS <= 4)
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COLS = 80;
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# ifdef DEBUG
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fprintf(outf, "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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/*
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* Handle funny termcap capabilities
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*/
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if (CS && SC && RC) AL=DL="";
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if (AL_PARM && AL==NULL) AL="";
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if (DL_PARM && DL==NULL) DL="";
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if (IC && IM==NULL) IM="";
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if (IC && EI==NULL) EI="";
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if (!GT) BT=NULL; /* If we can't tab, we can't backtab either */
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if (tgoto(CM, destcol, destline)[0] == 'O')
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CA = FALSE, CM = 0;
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else
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CA = TRUE;
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PC = _PC ? _PC[0] : FALSE;
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aoftspace = _tspace;
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{
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/* xtype should be the same size as genbuf for longname(). */
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static char xtype[1024];
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(void)strcpy(xtype,type);
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strncpy(ttytype, longname(genbuf, xtype), sizeof(ttytype) - 1);
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}
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ttytype[sizeof(ttytype) - 1] = '\0';
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if (unknown)
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return ERR;
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return OK;
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}
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/*
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* This routine gets all the terminal flags from the termcap database
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*/
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zap()
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{
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register char *namp;
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register bool **fp;
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register char ***sp;
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#ifdef DEBUG
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register char *cp;
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#endif
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extern char *tgetstr();
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namp = "ambsdadbeohchzinmimsncnsosulxbxnxtxsxx";
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fp = sflags;
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do {
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*(*fp++) = tgetflag(namp);
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#ifdef DEBUG
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fprintf(outf, "%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 = "albcbtcdceclcmcrcsdcdldmdoedeik0k1k2k3k4k5k6k7k8k9hoicimipkdkekhklkrkskullmandnlpcrcscsesfsosrtatetiucueupusvbvsveALDLUPDOLERI";
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sp = sstrs;
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do {
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*(*sp++) = tgetstr(namp, &aoftspace);
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#ifdef DEBUG
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fprintf(outf, "%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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fprintf(outf, "%s", unctrl(*cp));
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fprintf(outf, "\"\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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* return a capability from termcap
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*/
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char *
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getcap(name)
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char *name;
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{
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char *tgetstr();
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return tgetstr(name, &aoftspace);
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}
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