/* $NetBSD: setterm.c,v 1.27 2000/12/19 21:34:24 jdc 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 1.27 2000/12/19 21:34:24 jdc 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 bs cc da eo */ &__tc_am, &__tc_bs, &__tc_cc, &__tc_da, &__tc_eo, /* hc hl in mi ms */ &__tc_hc, &__tc_hl, &__tc_in, &__tc_mi, &__tc_ms, /* nc ns os ul ut */ &__tc_nc, &__tc_ns, &__tc_os, &__tc_ul, &__tc_ut, /* xb xn xt xs xx */ &__tc_xb, &__tc_xn, &__tc_xt, &__tc_xs, &__tc_xx }; static int *svals[] = { /* pa Co NC */ &__tc_pa, &__tc_Co, &__tc_NC }; static char *_PC, **sstrs[] = { /* AB ac ae AF AL */ &__tc_AB, &__tc_ac, &__tc_ae, &__tc_AF, &__tc_AL, /* al as bc bl bt */ &__tc_al, &__tc_as, &__tc_bc, &__tc_bl, &__tc_bt, /* cd ce cl cm cr */ &__tc_cd, &__tc_ce, &__tc_cl, &__tc_cm, &__tc_cr, /* cs dc DL dl dm */ &__tc_cs, &__tc_dc, &__tc_DL, &__tc_dl, &__tc_dm, /* DO do eA ed ei */ &__tc_DO, &__tc_do, &__tc_eA, &__tc_ed, &__tc_ei, /* ho Ic ic im Ip */ &__tc_ho, &__tc_Ic, &__tc_ic, &__tc_im, &__tc_Ip, /* ip k0 k1 k2 k3 */ &__tc_ip, &__tc_k0, &__tc_k1, &__tc_k2, &__tc_k3, /* k4 k5 k6 k7 k8 */ &__tc_k4, &__tc_k5, &__tc_k6, &__tc_k7, &__tc_k8, /* k9 kd ke kh kl */ &__tc_k9, &__tc_kd, &__tc_ke, &__tc_kh, &__tc_kl, /* kr ks ku LE ll */ &__tc_kr, &__tc_ks, &__tc_ku, &__tc_LE, &__tc_ll, /* ma mb md me mh */ &__tc_ma, &__tc_mb, &__tc_md, &__tc_me, &__tc_mh, /* mk mm mo mp mr */ &__tc_mk, &__tc_mm, &__tc_mo, &__tc_mp, &__tc_mr, /* nd nl oc op pc */ &__tc_nd, &__tc_nl, &__tc_oc, &__tc_op, &_PC, /* rc RI sc Sb se */ &__tc_rc, &__tc_RI, &__tc_Sb, &__tc_sc, &__tc_se, /* SF Sf sf so sp */ &__tc_SF, &__tc_Sf, &__tc_sf, &__tc_so, &__tc_sp, /* SR sr ta te ti */ &__tc_SR, &__tc_sr, &__tc_ta, &__tc_te, &__tc_ti, /* uc ue UP up us */ &__tc_uc, &__tc_ue, &__tc_UP, &__tc_up, &__tc_us, /* vb ve vi vs */ &__tc_vb, &__tc_ve, &__tc_vi, &__tc_vs }; 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) __tc_bt = NULL; /* * Test for cursor motion capability. * */ if (t_goto(NULL, __tc_cm, 0, 0, cm_buff, 1023) < 0) { __CA = 0; __tc_cm = 0; } else __CA = 1; __tc_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 = (__tc_cs == NULL || __tc_ho == NULL || (__tc_SF == NULL && __tc_sf == NULL) || (__tc_SR == NULL && __tc_sr == NULL)) && ((__tc_AL == NULL && __tc_al == NULL) || (__tc_DL == NULL && __tc_dl == NULL)); /* Precalculate conflict info for color/attribute end commands. */ __mask_op = __ATTRIBUTES & ~__COLOR; if (__tc_op != NULL) { if (__tc_se != NULL && !strcmp(__tc_op, __tc_se)) __mask_op &= ~__STANDOUT; if (__tc_ue != NULL && !strcmp(__tc_op, __tc_ue)) __mask_op &= ~__UNDERSCORE; if (__tc_me != NULL && !strcmp(__tc_op, __tc_me)) __mask_op &= ~__TERMATTR; } __mask_me = __ATTRIBUTES & ~__TERMATTR; if (__tc_me != NULL) { if (__tc_se != NULL && !strcmp(__tc_me, __tc_se)) __mask_me &= ~__STANDOUT; if (__tc_ue != NULL && !strcmp(__tc_me, __tc_ue)) __mask_me &= ~__UNDERSCORE; if (__tc_op != NULL && !strcmp(__tc_me, __tc_op)) __mask_me &= ~__COLOR; } __mask_ue = __ATTRIBUTES & ~__UNDERSCORE; if (__tc_ue != NULL) { if (__tc_se != NULL && !strcmp(__tc_ue, __tc_se)) __mask_ue &= ~__STANDOUT; if (__tc_me != NULL && !strcmp(__tc_ue, __tc_me)) __mask_ue &= ~__TERMATTR; if (__tc_op != NULL && !strcmp(__tc_ue, __tc_op)) __mask_ue &= ~__COLOR; } __mask_se = __ATTRIBUTES & ~__STANDOUT; if (__tc_se != NULL) { if (__tc_ue != NULL && !strcmp(__tc_se, __tc_ue)) __mask_se &= ~__UNDERSCORE; if (__tc_me != NULL && !strcmp(__tc_se, __tc_me)) __mask_se &= ~__TERMATTR; if (__tc_op != NULL && !strcmp(__tc_se, __tc_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 = "ambsccdaeohchlinmimsncnsosulutxbxnxtxsxx"; 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 = "ABacaeAFALalasbcblbtcdceclcmcrcsdcDLdldmDOdoeAedeihoIcicimIpipk0k1k2k3k4k5k6k7k8k9kdkekhklkrkskuLEllmambmdmemhmkmmmompmrndnlocoppcrcRISbscseSFSfsfsospSRsrtatetiucueUPupusvbvevivs"; namp = nampstr; tspace_size = 0; do { *tmp = *namp; *(tmp + 1) = *(namp + 1); t_getstr(tinfo, tmp, NULL, &i); tspace_size += i + 1; 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 (__tc_xs) __tc_so = __tc_se = NULL; else { if (t_getnum(tinfo, "sg") > 0) __tc_so = NULL; if (t_getnum(tinfo, "ug") > 0) __tc_us = NULL; if (!__tc_so && __tc_us) { __tc_so = __tc_us; __tc_se = __tc_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 */ t_getstr(_cursesi_genbuf, name, NULL, &ent_size); /* grow tspace to hold the new cap */ if ((new_tspace = realloc(tspace, ent_size + tspace_size)) == NULL) return NULL; /* 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)); }