1 /**************************************************************************** 2 * Copyright (c) 1998 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 1.29 1999/09/05 01:06:43 tom Exp $") 45 46 /* 47 some of the code in here was contributed by: 48 Magnus Bengtsson, d6mbeng@dtek.chalmers.se 49 */ 50 51 char *UP; 52 char *BC; 53 54 #ifdef FREEBSD_NATIVE 55 #undef GCC_UNUSED 56 #define GCC_UNUSED 57 extern char _nc_termcap[]; /* buffer to copy out */ 58 #endif 59 60 /*************************************************************************** 61 * 62 * tgetent(bufp, term) 63 * 64 * In termcap, this function reads in the entry for terminal `term' into the 65 * buffer pointed to by bufp. It must be called before any of the functions 66 * below are called. 67 * In this terminfo emulation, tgetent() simply calls setupterm() (which 68 * does a bit more than tgetent() in termcap does), and returns its return 69 * value (1 if successful, 0 if no terminal with the given name could be 70 * found, or -1 if no terminal descriptions have been installed on the 71 * system). The bufp argument is ignored. 72 * 73 ***************************************************************************/ 74 75 int tgetent(char *bufp GCC_UNUSED, const char *name) 76 { 77 int errcode; 78 79 T((T_CALLED("tgetent()"))); 80 81 setupterm((NCURSES_CONST char *)name, STDOUT_FILENO, &errcode); 82 83 if (errcode == 1) { 84 85 if (cursor_left) 86 if ((backspaces_with_bs = !strcmp(cursor_left, "\b")) == 0) 87 backspace_if_not_bs = cursor_left; 88 89 /* we're required to export these */ 90 if (pad_char != NULL) 91 PC = pad_char[0]; 92 if (cursor_up != NULL) 93 UP = cursor_up; 94 if (backspace_if_not_bs != NULL) 95 BC = backspace_if_not_bs; 96 97 (void) baudrate(); /* sets ospeed as a side-effect */ 98 99 /* LINT_PREPRO 100 #if 0*/ 101 #include <capdefaults.c> 102 /* LINT_PREPRO 103 #endif*/ 104 105 } 106 #ifdef FREEBSD_NATIVE 107 /* 108 * This is a REALLY UGLY hack. Basically, if we originate with 109 * a termcap source, try and copy it out. 110 */ 111 if (bufp && _nc_termcap[0]) 112 strncpy(bufp, _nc_termcap, 1024); 113 #endif 114 115 returnCode(errcode); 116 } 117 118 /*************************************************************************** 119 * 120 * tgetflag(str) 121 * 122 * Look up boolean termcap capability str and return its value (TRUE=1 if 123 * present, FALSE=0 if not). 124 * 125 ***************************************************************************/ 126 127 int tgetflag(NCURSES_CONST char *id) 128 { 129 int i; 130 131 T((T_CALLED("tgetflag(%s)"), id)); 132 if (cur_term != 0) { 133 TERMTYPE *tp = &(cur_term->type); 134 for_each_boolean(i, tp) { 135 const char *capname = ExtBoolname(tp, i, boolcodes); 136 if (!strncmp(id, capname, 2)) { 137 /* setupterm forces invalid booleans to false */ 138 returnCode(tp->Booleans[i]); 139 } 140 } 141 } 142 returnCode(0); /* Solaris does this */ 143 } 144 145 /*************************************************************************** 146 * 147 * tgetnum(str) 148 * 149 * Look up numeric termcap capability str and return its value, or -1 if 150 * not given. 151 * 152 ***************************************************************************/ 153 154 int tgetnum(NCURSES_CONST char *id) 155 { 156 int i; 157 158 T((T_CALLED("tgetnum(%s)"), id)); 159 if (cur_term != 0) { 160 TERMTYPE *tp = &(cur_term->type); 161 for_each_number(i, tp) { 162 const char *capname = ExtNumname(tp, i, numcodes); 163 if (!strncmp(id, capname, 2)) { 164 if (!VALID_NUMERIC(tp->Numbers[i])) 165 return -1; 166 returnCode(tp->Numbers[i]); 167 } 168 } 169 } 170 returnCode(ERR); 171 } 172 173 /*************************************************************************** 174 * 175 * tgetstr(str, area) 176 * 177 * Look up string termcap capability str and return a pointer to its value, 178 * or NULL if not given. 179 * 180 ***************************************************************************/ 181 182 char *tgetstr(NCURSES_CONST char *id, char **area) 183 { 184 int i; 185 186 T((T_CALLED("tgetstr(%s,%p)"), id, area)); 187 if (cur_term != 0) { 188 TERMTYPE *tp = &(cur_term->type); 189 for_each_string(i, tp) { 190 const char *capname = ExtStrname(tp, i, strcodes); 191 T(("trying %s", capname)); 192 if (!strncmp(id, capname, 2)) { 193 T(("found match : %s", _nc_visbuf(tp->Strings[i]))); 194 /* setupterm forces cancelled strings to null */ 195 if (area != 0 196 && *area != 0 197 && VALID_STRING(tp->Strings[i])) { 198 (void) strcpy(*area, tp->Strings[i]); 199 *area += strlen(*area) + 1; 200 } 201 returnPtr(tp->Strings[i]); 202 } 203 } 204 } 205 returnPtr(NULL); 206 } 207 208 /* 209 * char * 210 * tgoto(string, x, y) 211 * 212 * Retained solely for upward compatibility. Note the intentional 213 * reversing of the last two arguments. 214 * 215 */ 216 217 char *tgoto(const char *string, int x, int y) 218 { 219 T((T_CALLED("tgoto(%s,%d,%d)"), string, x, y)); 220 returnPtr(tparm((NCURSES_CONST char *)string, y, x)); 221 } 222