contrib/ncurses-5.4/tack/init.c

   1 /*
   2 ** Copyright (C) 1991, 1997 Free Software Foundation, Inc.
   3 **
   4 ** This file is part of TACK.
   5 **
   6 ** TACK is free software; you can redistribute it and/or modify
   7 ** it under the terms of the GNU General Public License as published by
   8 ** the Free Software Foundation; either version 2, or (at your option)
   9 ** any later version.
  10 **
  11 ** TACK is distributed in the hope that it will be useful,
  12 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 ** GNU General Public License for more details.
  15 **
  16 ** You should have received a copy of the GNU General Public License
  17 ** along with TACK; see the file COPYING.  If not, write to
  18 ** the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 ** Boston, MA 02111-1307, USA.
  20 */
  21 /* initialization and wrapup code */
  22
  23 #include <tack.h>
  24
  25 MODULE_ID("$Id: init.c,v 1.4 2003/09/20 19:40:57 tom Exp $")
  26
  27 #if NCURSES_VERSION_MAJOR >= 5 || NCURSES_VERSION_PATCH >= 981219
  28 #define _nc_get_curterm(p) _nc_get_tty_mode(p)
  29 #endif
  30
  31 FILE *debug_fp;
  32 char temp[1024];
  33 char tty_basename[64];
  34
  35 void
  36 put_name(const char *cap, const char *name)
  37 {                               /* send the cap name followed by the cap */
  38         if (cap) {
  39                 ptext(name);
  40                 tc_putp(cap);
  41         }
  42 }
  43
  44 static void
  45 report_cap(const char *tag, const char *s)
  46 {                               /* expand the cap or print *** missing *** */
  47         int i;
  48
  49         ptext(tag);
  50         for (i = char_count; i < 13; i++) {
  51                 putchp(' ');
  52         }
  53         put_str(" = ");
  54         if (s) {
  55                 putln(expand(s));
  56         } else {
  57                 putln("*** missing ***");
  58         }
  59 }
  60
  61
  62 void
  63 reset_init(void)
  64 {                               /* send the reset and init strings */
  65         int i;
  66
  67         ptext("Terminal reset");
  68         i = char_count;
  69         put_name(reset_1string, " (rs1)");
  70         put_name(reset_2string, " (rs2)");
  71         /* run the reset file */
  72         if (reset_file && reset_file[0]) {
  73                 FILE *fp;
  74                 int ch;
  75
  76                 can_test("rf", FLAG_TESTED);
  77                 if ((fp = fopen(reset_file, "r"))) {    /* send the reset file */
  78                         sprintf(temp, " (rf) %s", reset_file);
  79                         ptextln(temp);
  80                         while (1) {
  81                                 ch = getc(fp);
  82                                 if (ch == EOF)
  83                                         break;
  84                                 put_this(ch);
  85                         }
  86                         fclose(fp);
  87                 } else {
  88                         sprintf(temp, "\nCannot open reset file (rf) %s", reset_file);
  89                         ptextln(temp);
  90                 }
  91         }
  92         put_name(reset_3string, " (rs3)");
  93         if (i != char_count) {
  94                 put_crlf();
  95         }
  96         ptext(" init");
  97         put_name(init_1string, " (is1)");
  98         put_name(init_2string, " (is2)");
  99         if (set_tab && clear_all_tabs && init_tabs != 8) {
 100                 put_crlf();
 101                 tc_putp(clear_all_tabs);
 102                 for (char_count = 0; char_count < columns; char_count++) {
 103                         put_this(' ');
 104                         if ((char_count & 7) == 7) {
 105                                 tc_putp(set_tab);
 106                         }
 107                 }
 108                 put_cr();
 109         }
 110         /* run the initialization file */
 111         if (init_file && init_file[0]) {
 112                 FILE *fp;
 113                 int ch;
 114
 115                 can_test("if", FLAG_TESTED);
 116                 if ((fp = fopen(init_file, "r"))) {     /* send the init file */
 117                         sprintf(temp, " (if) %s", init_file);
 118                         ptextln(temp);
 119                         while (1) {
 120                                 ch = getc(fp);
 121                                 if (ch == EOF)
 122                                         break;
 123                                 put_this(ch);
 124                         }
 125                         fclose(fp);
 126                 } else {
 127                         sprintf(temp, "\nCannot open init file (if) %s", init_file);
 128                         ptextln(temp);
 129                 }
 130         }
 131         if (init_prog) {
 132                 can_test("iprog", FLAG_TESTED);
 133                 (void) system(init_prog);
 134         }
 135         put_name(init_3string, " (is3)");
 136
 137         fflush(stdout);
 138 }
 139
 140 /*
 141 **      display_basic()
 142 **
 143 **      display the basic terminal definitions
 144 */
 145 void
 146 display_basic(void)
 147 {
 148         put_str("Name: ");
 149         putln(ttytype);
 150
 151         report_cap("\\r ^M (cr)", carriage_return);
 152         report_cap("\\n ^J (ind)", scroll_forward);
 153         report_cap("\\b ^H (cub1)", cursor_left);
 154         report_cap("\\t ^I (ht)", tab);
 155 /*      report_cap("\\f ^L (ff)", form_feed);   */
 156         if (newline) {
 157                 /* OK if missing */
 158                 report_cap("      (nel)", newline);
 159         }
 160         report_cap("      (clear)", clear_screen);
 161         if (!cursor_home && cursor_address) {
 162                 report_cap("(cup) (home)", tparm(cursor_address, 0, 0));
 163         } else {
 164                 report_cap("      (home)", cursor_home);
 165         }
 166 #ifdef user9
 167         report_cap("ENQ   (u9)", user9);
 168 #endif
 169 #ifdef user8
 170         report_cap("ACK   (u8)", user8);
 171 #endif
 172
 173         sprintf(temp, "\nTerminal size: %d x %d.  Baud rate: %ld.  Frame size: %d.%d", columns, lines, tty_baud_rate, tty_frame_size >> 1, (tty_frame_size & 1) * 5);
 174         putln(temp);
 175 }
 176
 177 /*
 178 **      curses_setup(exec_name)
 179 **
 180 **      Startup ncurses
 181 */
 182 void
 183 curses_setup(
 184         char *exec_name)
 185 {
 186         int status;
 187         static TERMTYPE term;
 188         char tty_filename[2048];
 189
 190         tty_init();
 191
 192         /**
 193            See if the terminal is in the terminfo data base.  This call has
 194         two useful benefits, 1) it returns the filename of the terminfo entry,
 195         and 2) it searches only terminfo's.  This allows us to abort before
 196         ncurses starts scanning the termcap file.
 197         **/
 198         if ((status = _nc_read_entry(tty_basename, tty_filename, &term)) == 0) {
 199                 const TERMTYPE *fallback = _nc_fallback(tty_basename);
 200
 201                 if (fallback) {
 202                     term = *fallback;
 203                     sprintf(tty_filename, "(fallback)%s", tty_basename);
 204                     status = 1;
 205                 } else {
 206                     fprintf(stderr, "Terminal not found: TERM=%s\n", tty_basename);
 207                     show_usage(exec_name);
 208                     exit(1);
 209                 }
 210         }
 211         if (status == -1) {
 212                 fprintf(stderr, "Terminfo database is inaccessible\n");
 213                 exit(1);
 214         }
 215
 216         /**
 217            This call will load the terminfo data base and set the cur-term
 218         variable.  Only terminals that actually exist will get here so its
 219         OK to ignore errors.  This is a good thing since ncurses does not
 220         permit (os) or (gn) to be set.
 221         **/
 222         setupterm(tty_basename, 1, &status);
 223
 224         /**
 225            Get the current terminal definitions.  This must be done before
 226         getting the baudrate.
 227         **/
 228         _nc_get_curterm(&cur_term->Nttyb);
 229         tty_baud_rate = baudrate();
 230         tty_cps = (tty_baud_rate << 1) / tty_frame_size;
 231
 232         /* set up the defaults */
 233         replace_mode = TRUE;
 234         scan_mode = 0;
 235         char_count = 0;
 236         select_delay_type = debug_level = 0;
 237         char_mask = (meta_on && meta_on[0] == '\0') ? ALLOW_PARITY : STRIP_PARITY;
 238         /* Don't change the XON/XOFF modes yet. */
 239         select_xon_xoff = initial_stty_query(TTY_XON_XOFF) ? 1 : needs_xon_xoff;
 240
 241         fflush(stdout); /* flush any output */
 242         tty_set();
 243
 244         go_home();      /* set can_go_home */
 245         put_clear();    /* set can_clear_screen */
 246
 247         if (send_reset_init) {
 248                 reset_init();
 249         }
 250
 251         /*
 252            I assume that the reset and init strings may not have the correct
 253            pads.  (Because that part of the test comes much later.)  Because
 254            of this, I allow the terminal some time to catch up.
 255         */
 256         fflush(stdout); /* waste some time */
 257         sleep(1);       /* waste more time */
 258         charset_can_test();
 259         can_test("lines cols cr nxon rf if iprog rmp smcup rmcup", FLAG_CAN_TEST);
 260         edit_init();                    /* initialize the edit data base */
 261
 262         if (send_reset_init && enter_ca_mode) {
 263                 tc_putp(enter_ca_mode);
 264                 put_clear();    /* just in case we switched pages */
 265         }
 266         put_crlf();
 267         ptext("Using terminfo from: ");
 268         ptextln(tty_filename);
 269         put_crlf();
 270
 271         if (tty_can_sync == SYNC_NEEDED) {
 272                 verify_time();
 273         }
 274
 275         display_basic();
 276 }
 277
 278 /*
 279 **      bye_kids(exit-condition)
 280 **
 281 **      Shutdown the terminal, clear the signals, and exit
 282 */
 283 void
 284 bye_kids(int n)
 285 {                               /* reset the tty and exit */
 286         ignoresig();
 287         if (send_reset_init) {
 288                 if (exit_ca_mode) {
 289                         tc_putp(exit_ca_mode);
 290                 }
 291                 if (initial_stty_query(TTY_XON_XOFF)) {
 292                         if (enter_xon_mode) {
 293                                 tc_putp(enter_xon_mode);
 294                         }
 295                 } else if (exit_xon_mode) {
 296                         tc_putp(exit_xon_mode);
 297                 }
 298         }
 299         if (debug_fp) {
 300                 fclose(debug_fp);
 301         }
 302         if (log_fp) {
 303                 fclose(log_fp);
 304         }
 305         tty_reset();
 306         fclose(stdin);
 307         fclose(stdout);
 308         fclose(stderr);
 309         if (not_a_tty)
 310                 sleep(1);
 311         exit(n);
 312 }