1 /**************************************************************************** 2 * Copyright (c) 1998,1999,2000 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 ****************************************************************************/ 33 34 /* $FreeBSD$ */ 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("$Id: 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 #ifdef FREEBSD_NATIVE 57 #undef GCC_UNUSED 58 #define GCC_UNUSED 59 extern char _nc_termcap[]; /* buffer to copy out */ 60 #endif 61 62 /*************************************************************************** 63 * 64 * tgetent(bufp, term) 65 * 66 * In termcap, this function reads in the entry for terminal `term' into the 67 * buffer pointed to by bufp. It must be called before any of the functions 68 * below are called. 69 * In this terminfo emulation, tgetent() simply calls setupterm() (which 70 * does a bit more than tgetent() in termcap does), and returns its return 71 * value (1 if successful, 0 if no terminal with the given name could be 72 * found, or -1 if no terminal descriptions have been installed on the 73 * system). The bufp argument is ignored. 74 * 75 ***************************************************************************/ 76 77 NCURSES_EXPORT(int) 78 tgetent 79 (char *bufp GCC_UNUSED, const char *name) 80 { 81 int errcode; 82 83 T((T_CALLED("tgetent()"))); 84 85 setupterm((NCURSES_CONST char *) name, STDOUT_FILENO, &errcode); 86 87 if (errcode == 1) { 88 89 if (cursor_left) 90 if ((backspaces_with_bs = !strcmp(cursor_left, "\b")) == 0) 91 backspace_if_not_bs = cursor_left; 92 93 /* we're required to export these */ 94 if (pad_char != NULL) 95 PC = pad_char[0]; 96 if (cursor_up != NULL) 97 UP = cursor_up; 98 if (backspace_if_not_bs != NULL) 99 BC = backspace_if_not_bs; 100 101 (void) baudrate(); /* sets ospeed as a side-effect */ 102 103 /* LINT_PREPRO 104 #if 0*/ 105 #include <capdefaults.c> 106 /* LINT_PREPRO 107 #endif*/ 108 109 } 110 111 #ifdef FREEBSD_NATIVE 112 /* 113 * This is a REALLY UGLY hack. Basically, if we originate with 114 * a termcap source, try and copy it out. 115 */ 116 if (bufp && _nc_termcap[0]) 117 strncpy(bufp, _nc_termcap, 1024); 118 #endif 119 120 returnCode(errcode); 121 } 122 123 /*************************************************************************** 124 * 125 * tgetflag(str) 126 * 127 * Look up boolean termcap capability str and return its value (TRUE=1 if 128 * present, FALSE=0 if not). 129 * 130 ***************************************************************************/ 131 132 NCURSES_EXPORT(int) 133 tgetflag(NCURSES_CONST char *id) 134 { 135 int i; 136 137 T((T_CALLED("tgetflag(%s)"), id)); 138 if (cur_term != 0) { 139 TERMTYPE *tp = &(cur_term->type); 140 for_each_boolean(i, tp) { 141 const char *capname = ExtBoolname(tp, i, boolcodes); 142 if (!strncmp(id, capname, 2)) { 143 /* setupterm forces invalid booleans to false */ 144 returnCode(tp->Booleans[i]); 145 } 146 } 147 } 148 returnCode(0); /* Solaris does this */ 149 } 150 151 /*************************************************************************** 152 * 153 * tgetnum(str) 154 * 155 * Look up numeric termcap capability str and return its value, or -1 if 156 * not given. 157 * 158 ***************************************************************************/ 159 160 NCURSES_EXPORT(int) 161 tgetnum(NCURSES_CONST char *id) 162 { 163 int i; 164 165 T((T_CALLED("tgetnum(%s)"), id)); 166 if (cur_term != 0) { 167 TERMTYPE *tp = &(cur_term->type); 168 for_each_number(i, tp) { 169 const char *capname = ExtNumname(tp, i, numcodes); 170 if (!strncmp(id, capname, 2)) { 171 if (!VALID_NUMERIC(tp->Numbers[i])) 172 returnCode(ABSENT_NUMERIC); 173 returnCode(tp->Numbers[i]); 174 } 175 } 176 } 177 returnCode(ABSENT_NUMERIC); 178 } 179 180 /*************************************************************************** 181 * 182 * tgetstr(str, area) 183 * 184 * Look up string termcap capability str and return a pointer to its value, 185 * or NULL if not given. 186 * 187 ***************************************************************************/ 188 189 NCURSES_EXPORT(char *) 190 tgetstr 191 (NCURSES_CONST char *id, char **area) 192 { 193 int i; 194 195 T((T_CALLED("tgetstr(%s,%p)"), id, area)); 196 if (cur_term != 0) { 197 TERMTYPE *tp = &(cur_term->type); 198 for_each_string(i, tp) { 199 const char *capname = ExtStrname(tp, i, strcodes); 200 if (!strncmp(id, capname, 2)) { 201 TR(TRACE_DATABASE, ("found match : %s", _nc_visbuf(tp->Strings[i]))); 202 /* setupterm forces canceled strings to null */ 203 if (area != 0 204 && *area != 0 205 && VALID_STRING(tp->Strings[i])) { 206 (void) strcpy(*area, tp->Strings[i]); 207 *area += strlen(*area) + 1; 208 } 209 returnPtr(tp->Strings[i]); 210 } 211 } 212 } 213 returnPtr(NULL); 214 } 215