1 /* $OpenBSD: lib_termcap.c,v 1.9 2003/03/18 16:55:54 millert Exp $ */ 2 3 /**************************************************************************** 4 * Copyright (c) 1998,1999,2000 Free Software Foundation, Inc. * 5 * * 6 * Permission is hereby granted, free of charge, to any person obtaining a * 7 * copy of this software and associated documentation files (the * 8 * "Software"), to deal in the Software without restriction, including * 9 * without limitation the rights to use, copy, modify, merge, publish, * 10 * distribute, distribute with modifications, sublicense, and/or sell * 11 * copies of the Software, and to permit persons to whom the Software is * 12 * furnished to do so, subject to the following conditions: * 13 * * 14 * The above copyright notice and this permission notice shall be included * 15 * in all copies or substantial portions of the Software. * 16 * * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS * 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. * 20 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * 21 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * 22 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR * 23 * THE USE OR OTHER DEALINGS IN THE SOFTWARE. * 24 * * 25 * Except as contained in this notice, the name(s) of the above copyright * 26 * holders shall not be used in advertising or otherwise to promote the * 27 * sale, use or other dealings in this Software without prior written * 28 * authorization. * 29 ****************************************************************************/ 30 31 /**************************************************************************** 32 * Author: Zeyd M. Ben-Halim <zmbenhal@netcom.com> 1992,1995 * 33 * and: Eric S. Raymond <esr@snark.thyrsus.com> * 34 ****************************************************************************/ 35 36 #include <curses.priv.h> 37 38 #include <termcap.h> 39 #include <tic.h> 40 41 #define __INTERNAL_CAPS_VISIBLE 42 #include <term_entry.h> 43 44 MODULE_ID("$From: lib_termcap.c,v 1.39 2000/12/10 02:56:30 tom Exp $") 45 46 /* 47 some of the code in here was contributed by: 48 Magnus Bengtsson, d6mbeng@dtek.chalmers.se 49 */ 50 51 NCURSES_EXPORT_VAR(char *) 52 UP = 0; 53 NCURSES_EXPORT_VAR(char *) 54 BC = 0; 55 56 /*************************************************************************** 57 * 58 * tgetent(bufp, term) 59 * 60 * In termcap, this function reads in the entry for terminal `term' into the 61 * buffer pointed to by bufp. It must be called before any of the functions 62 * below are called. 63 * In this terminfo emulation, tgetent() simply calls setupterm() (which 64 * does a bit more than tgetent() in termcap does), and returns its return 65 * value (1 if successful, 0 if no terminal with the given name could be 66 * found, or -1 if no terminal descriptions have been installed on the 67 * system). The bufp argument is ignored. 68 * 69 ***************************************************************************/ 70 71 NCURSES_EXPORT(int) 72 tgetent 73 (char *bufp GCC_UNUSED, const char *name) 74 { 75 int errcode; 76 77 T((T_CALLED("tgetent()"))); 78 79 setupterm((NCURSES_CONST char *) name, STDOUT_FILENO, &errcode); 80 81 if (errcode == 1) { 82 83 if (cursor_left) 84 if ((backspaces_with_bs = !strcmp(cursor_left, "\b")) == 0) 85 backspace_if_not_bs = cursor_left; 86 87 /* we're required to export these */ 88 if (pad_char != NULL) 89 PC = pad_char[0]; 90 if (cursor_up != NULL) 91 UP = cursor_up; 92 if (backspace_if_not_bs != NULL) 93 BC = backspace_if_not_bs; 94 95 (void) baudrate(); /* sets ospeed as a side-effect */ 96 97 /* LINT_PREPRO 98 #if 0*/ 99 #include <capdefaults.c> 100 /* LINT_PREPRO 101 #endif*/ 102 103 } 104 returnCode(errcode); 105 } 106 107 /*************************************************************************** 108 * 109 * tgetflag(str) 110 * 111 * Look up boolean termcap capability str and return its value (TRUE=1 if 112 * present, FALSE=0 if not). 113 * 114 ***************************************************************************/ 115 116 NCURSES_EXPORT(int) 117 tgetflag(NCURSES_CONST char *id) 118 { 119 int i; 120 121 T((T_CALLED("tgetflag(%s)"), id)); 122 if (cur_term != 0) { 123 TERMTYPE *tp = &(cur_term->type); 124 for_each_boolean(i, tp) { 125 const char *capname = ExtBoolname(tp, i, boolcodes); 126 if (!strncmp(id, capname, 2)) { 127 /* setupterm forces invalid booleans to false */ 128 returnCode(tp->Booleans[i]); 129 } 130 } 131 } 132 returnCode(0); /* Solaris does this */ 133 } 134 135 /*************************************************************************** 136 * 137 * tgetnum(str) 138 * 139 * Look up numeric termcap capability str and return its value, or -1 if 140 * not given. 141 * 142 ***************************************************************************/ 143 144 NCURSES_EXPORT(int) 145 tgetnum(NCURSES_CONST char *id) 146 { 147 int i; 148 149 T((T_CALLED("tgetnum(%s)"), id)); 150 if (cur_term != 0) { 151 TERMTYPE *tp = &(cur_term->type); 152 for_each_number(i, tp) { 153 const char *capname = ExtNumname(tp, i, numcodes); 154 if (!strncmp(id, capname, 2)) { 155 if (!VALID_NUMERIC(tp->Numbers[i])) 156 returnCode(ABSENT_NUMERIC); 157 returnCode(tp->Numbers[i]); 158 } 159 } 160 } 161 returnCode(ABSENT_NUMERIC); 162 } 163 164 /*************************************************************************** 165 * 166 * tgetstr(str, area) 167 * 168 * Look up string termcap capability str and return a pointer to its value, 169 * or NULL if not given. 170 * 171 ***************************************************************************/ 172 173 NCURSES_EXPORT(char *) 174 tgetstr 175 (NCURSES_CONST char *id, char **area) 176 { 177 int i; 178 179 T((T_CALLED("tgetstr(%s,%p)"), id, area)); 180 if (cur_term != 0) { 181 TERMTYPE *tp = &(cur_term->type); 182 for_each_string(i, tp) { 183 const char *capname = ExtStrname(tp, i, strcodes); 184 if (!strncmp(id, capname, 2)) { 185 TR(TRACE_DATABASE, ("found match : %s", _nc_visbuf(tp->Strings[i]))); 186 /* setupterm forces canceled strings to null */ 187 if (area != 0 188 && *area != 0 189 && VALID_STRING(tp->Strings[i])) { 190 (void) strlcpy(*area, tp->Strings[i], 1024); 191 *area += strlen(*area) + 1; 192 } 193 returnPtr(tp->Strings[i]); 194 } 195 } 196 } 197 returnPtr(NULL); 198 } 199