/* $NetBSD: setterm.c,v 1.19 2000/04/22 13:29:02 blymn 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 #ifndef lint #if 0 static char sccsid[] = "@(#)setterm.c 8.8 (Berkeley) 10/25/94"; #else __RCSID("$NetBSD: setterm.c,v 1.19 2000/04/22 13:29:02 blymn Exp $"); #endif #endif /* not lint */ #include /* TIOCGWINSZ on old systems. */ #include #include #include #include #include "curses.h" #include "curses_private.h" static int zap(struct tinfo *tinfo); struct tinfo *_cursesi_genbuf; static char *sflags[] = { /* am be bs cc da eo hc hl */ &AM, &BE, &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; 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)); 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 = "ambebsccdaeohchlinmimsncnsosulxbxnxtxsxx"; 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)); }