1/**************************************************************************** 2 * Copyright (c) 1998-2004,2005 Free Software Foundation, Inc. * 3 * * 4 * Permission is hereby granted, free of charge, to any person obtaining a * 5 * copy of this software and associated documentation files (the * 6 * "Software"), to deal in the Software without restriction, including * 7 * without limitation the rights to use, copy, modify, merge, publish, * 8 * distribute, distribute with modifications, sublicense, and/or sell * 9 * copies of the Software, and to permit persons to whom the Software is * 10 * furnished to do so, subject to the following conditions: * 11 * * 12 * The above copyright notice and this permission notice shall be included * 13 * in all copies or substantial portions of the Software. * 14 * * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 16 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 18 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 21 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 22 * * 23 * Except as contained in this notice, the name(s) of the above copyright * 24 * holders shall not be used in advertising or otherwise to promote the * 25 * sale, use or other dealings in this Software without prior written * 26 * authorization. * 27 ****************************************************************************/ 28 29/**************************************************************************** 30 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 31 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 32 * and: Thomas E. Dickey 1996-on * 33 * * 34 * some of the code in here was contributed by: * 35 * Magnus Bengtsson, d6mbeng@dtek.chalmers.se (Nov'93) * 36 ****************************************************************************/ 37 38#define __INTERNAL_CAPS_VISIBLE 39#include <curses.priv.h> 40 41#include <termcap.h> 42#include <tic.h> 43#include <ctype.h> 44 45#include <term_entry.h> 46 47MODULE_ID("$Id: lib_termcap.c,v 1.51 2005/07/16 23:12:51 tom Exp $") 48 49NCURSES_EXPORT_VAR(char *) UP = 0; 50NCURSES_EXPORT_VAR(char *) BC = 0; 51 52static char *fix_me = 0; /* this holds the filtered sgr0 string */ 53 54/*************************************************************************** 55 * 56 * tgetent(bufp, term) 57 * 58 * In termcap, this function reads in the entry for terminal `term' into the 59 * buffer pointed to by bufp. It must be called before any of the functions 60 * below are called. 61 * In this terminfo emulation, tgetent() simply calls setupterm() (which 62 * does a bit more than tgetent() in termcap does), and returns its return 63 * value (1 if successful, 0 if no terminal with the given name could be 64 * found, or -1 if no terminal descriptions have been installed on the 65 * system). The bufp argument is ignored. 66 * 67 ***************************************************************************/ 68 69NCURSES_EXPORT(int) 70tgetent(char *bufp GCC_UNUSED, const char *name) 71{ 72 int errcode; 73 74 START_TRACE(); 75 T((T_CALLED("tgetent()"))); 76 77 _nc_setupterm((NCURSES_CONST char *) name, STDOUT_FILENO, &errcode, TRUE); 78 79 PC = 0; 80 UP = 0; 81 BC = 0; 82 fix_me = 0; /* don't free it - application may still use */ 83 84 if (errcode == 1) { 85 86 if (cursor_left) 87 if ((backspaces_with_bs = !strcmp(cursor_left, "\b")) == 0) 88 backspace_if_not_bs = cursor_left; 89 90 /* we're required to export these */ 91 if (pad_char != NULL) 92 PC = pad_char[0]; 93 if (cursor_up != NULL) 94 UP = cursor_up; 95 if (backspace_if_not_bs != NULL) 96 BC = backspace_if_not_bs; 97 98 FreeIfNeeded(fix_me); 99 if ((fix_me = _nc_trim_sgr0(&(cur_term->type))) != 0) { 100 if (!strcmp(fix_me, exit_attribute_mode)) { 101 if (fix_me != exit_attribute_mode) { 102 free(fix_me); 103 } 104 fix_me = 0; 105 } 106 } 107 108 (void) baudrate(); /* sets ospeed as a side-effect */ 109 110/* LINT_PREPRO 111#if 0*/ 112#include <capdefaults.c> 113/* LINT_PREPRO 114#endif*/ 115 116 } 117 returnCode(errcode); 118} 119 120/*************************************************************************** 121 * 122 * tgetflag(str) 123 * 124 * Look up boolean termcap capability str and return its value (TRUE=1 if 125 * present, FALSE=0 if not). 126 * 127 ***************************************************************************/ 128 129NCURSES_EXPORT(int) 130tgetflag(NCURSES_CONST char *id) 131{ 132 unsigned i; 133 134 T((T_CALLED("tgetflag(%s)"), id)); 135 if (cur_term != 0) { 136 TERMTYPE *tp = &(cur_term->type); 137 for_each_boolean(i, tp) { 138 const char *capname = ExtBoolname(tp, i, boolcodes); 139 if (!strncmp(id, capname, 2)) { 140 /* setupterm forces invalid booleans to false */ 141 returnCode(tp->Booleans[i]); 142 } 143 } 144 } 145 returnCode(0); /* Solaris does this */ 146} 147 148/*************************************************************************** 149 * 150 * tgetnum(str) 151 * 152 * Look up numeric termcap capability str and return its value, or -1 if 153 * not given. 154 * 155 ***************************************************************************/ 156 157NCURSES_EXPORT(int) 158tgetnum(NCURSES_CONST char *id) 159{ 160 unsigned i; 161 162 T((T_CALLED("tgetnum(%s)"), id)); 163 if (cur_term != 0) { 164 TERMTYPE *tp = &(cur_term->type); 165 for_each_number(i, tp) { 166 const char *capname = ExtNumname(tp, i, numcodes); 167 if (!strncmp(id, capname, 2)) { 168 if (!VALID_NUMERIC(tp->Numbers[i])) 169 returnCode(ABSENT_NUMERIC); 170 returnCode(tp->Numbers[i]); 171 } 172 } 173 } 174 returnCode(ABSENT_NUMERIC); 175} 176 177/*************************************************************************** 178 * 179 * tgetstr(str, area) 180 * 181 * Look up string termcap capability str and return a pointer to its value, 182 * or NULL if not given. 183 * 184 ***************************************************************************/ 185 186NCURSES_EXPORT(char *) 187tgetstr(NCURSES_CONST char *id, char **area) 188{ 189 unsigned i; 190 char *result = NULL; 191 192 T((T_CALLED("tgetstr(%s,%p)"), id, area)); 193 if (cur_term != 0) { 194 TERMTYPE *tp = &(cur_term->type); 195 for_each_string(i, tp) { 196 const char *capname = ExtStrname(tp, i, strcodes); 197 if (!strncmp(id, capname, 2)) { 198 result = tp->Strings[i]; 199 TR(TRACE_DATABASE, ("found match : %s", _nc_visbuf(result))); 200 /* setupterm forces canceled strings to null */ 201 if (VALID_STRING(result)) { 202 if (result == exit_attribute_mode 203 && fix_me != 0) { 204 result = fix_me; 205 TR(TRACE_DATABASE, ("altered to : %s", _nc_visbuf(result))); 206 } 207 if (area != 0 208 && *area != 0) { 209 (void) strcpy(*area, result); 210 *area += strlen(*area) + 1; 211 } 212 } 213 break; 214 } 215 } 216 } 217 returnPtr(result); 218} 219