gnu/usr.bin/dialog/dialog.c

   1 /*
   2  *  dialog - Display simple dialog boxes from shell scripts
   3  *
   4  *  AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
   5  *
   6  *  This program is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU General Public License
   8  *  as published by the Free Software Foundation; either version 2
   9  *  of the License, or (at your option) any later version.
  10  *
  11  *  This program 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 this program; if not, write to the Free Software
  18  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19  *
  20  * $FreeBSD: src/gnu/usr.bin/dialog/dialog.c,v 1.12.6.1 2001/03/05 10:28:10 kris Exp $
  21  * $DragonFly: src/gnu/usr.bin/dialog/dialog.c,v 1.2 2003/06/17 04:25:45 dillon Exp $
  22  *
  23  *
  24  *  HISTORY:
  25  *
  26  *  17/12/93 - Version 0.1 released.
  27  *
  28  *  19/12/93 - menu will now scroll if there are more items than can fit
  29  *             on the screen.
  30  *           - added 'checklist', a dialog box with a list of options that
  31  *             can be turned on or off. A list of options that are on is
  32  *             returned on exit.
  33  *
  34  *  20/12/93 - Version 0.15 released.
  35  *
  36  *  29/12/93 - Incorporated patch from Patrick J. Volkerding
  37  *             (volkerdi@mhd1.moorhead.msus.edu) that made these changes:
  38  *             - increased MAX_LEN to 2048
  39  *             - added 'infobox', equivalent to a message box without pausing
  40  *             - added option '--clear' that will clear the screen
  41  *             - Explicit line breaking when printing prompt text can be
  42  *               invoked by real newline '\n' besides the string "\n"
  43  *           - an optional parameter '--title <string>' can be used to
  44  *             specify a title string for the dialog box
  45  *
  46  *  03/01/94 - added 'textbox', a dialog box for displaying text from a file.
  47  *           - Version 0.2 released.
  48  *
  49  *  04/01/94 - some fixes and improvements for 'textbox':
  50  *             - fixed a bug that will cause a segmentation violation when a
  51  *               line is longer than MAX_LEN characters. Lines will now be
  52  *               truncated if they are longer than MAX_LEN characters.
  53  *             - removed wrefresh() from print_line(). This will increase
  54  *               efficiency of print_page() which calls print_line().
  55  *             - display current position in the form of percentage into file.
  56  *           - Version 0.21 released.
  57  *
  58  *  05/01/94 - some changes for faster screen update.
  59  *
  60  *  07/01/94 - much more flexible color settings. Can use all 16 colors
  61  *             (8 normal, 8 highlight) of the Linux console.
  62  *
  63  *  08/01/94 - added run-time configuration using configuration file.
  64  *
  65  *  09/01/94 - some minor bug fixes and cleanups for menubox, checklist and
  66  *             textbox.
  67  *
  68  *  11/01/94 - added a man page.
  69  *
  70  *  13/01/94 - some changes for easier porting to other Unix systems (tested
  71  *             on Ultrix, SunOS and HPUX)
  72  *           - Version 0.3 released.
  73  *
  74  *  08/06/94 - Patches by Stuart Herbert - S.Herbert@shef.ac.uk
  75  *             Fixed attr_clear and the textbox stuff to work with ncurses 1.8.5
  76  *             Fixed the wordwrap routine - it'll actually wrap properly now
  77  *             Added a more 3D look to everything - having your own rc file could
  78  *               prove 'interesting' to say the least :-)
  79  *             Added radiolist option
  80  *           - Version 0.4 released.
  81  *
  82  *  09/28/98 - Patches by Anatoly A. Orehovsky - tolik@mpeks.tomsk.su
  83  *             Added ftree and tree options
  84  *
  85  */
  86
  87 #include <sys/types.h>
  88
  89 #include <stdio.h>
  90 #include <stdlib.h>
  91 #include <string.h>
  92 #include <sys/wait.h>
  93 #include <dialog.h>
  94
  95 void Usage(char *name);
  96
  97 int main(int argc, char *argv[])
  98 {
  99   int offset = 0, clear_screen = 0, end_common_opts = 0, retval;
 100   unsigned char *title = NULL;
 101   unsigned char result[MAX_LEN];
 102   char *hline = NULL, *hfile = NULL;
 103
 104   if (argc < 2) {
 105     Usage(argv[0]);
 106     exit(-1);
 107   }
 108   else if (!strcmp(argv[1], "--create-rc")) {
 109 #ifdef HAVE_NCURSES
 110     if (argc != 3) {
 111       Usage(argv[0]);
 112       exit(-1);
 113     }
 114     dialog_create_rc(argv[2]);
 115     return 0;
 116 #else
 117     fprintf(stderr, "\nThis option is currently unsupported on your system.\n");
 118     return -1;
 119 #endif
 120   }
 121
 122   while (offset < argc-1 && !end_common_opts) {    /* Common options */
 123     if (!strcmp(argv[offset+1], "--title")) {
 124       if (argc-offset < 3 || title != NULL) {    /* No two "--title" please! */
 125         Usage(argv[0]);
 126         exit(-1);
 127       }
 128       else {
 129         title = argv[offset+2];
 130         offset += 2;
 131       }
 132     }
 133     else if (!strcmp(argv[offset+1], "--hline")) {
 134       if (argc-offset < 3 || hline != NULL) {    /* No two "--hline" please! */
 135         Usage(argv[0]);
 136         exit(-1);
 137       }
 138       else {
 139         hline = argv[offset+2];
 140         use_helpline(hline);
 141         offset += 2;
 142       }
 143     }
 144     else if (!strcmp(argv[offset+1], "--hfile")) {
 145       if (argc-offset < 3 || hfile != NULL) {    /* No two "--hfile" please! */
 146         Usage(argv[0]);
 147         exit(-1);
 148       }
 149       else {
 150         hfile = argv[offset+2];
 151         use_helpfile(hfile);
 152         offset += 2;
 153       }
 154     }
 155     else if (!strcmp(argv[offset+1], "--clear")) {
 156       if (clear_screen) {    /* Hey, "--clear" can't appear twice! */
 157         Usage(argv[0]);
 158         exit(-1);
 159       }
 160       else if (argc == 2) {    /* we only want to clear the screen */
 161         init_dialog();
 162         dialog_update();    /* init_dialog() will clear the screen for us */
 163         end_dialog();
 164         return 0;
 165       }
 166       else {
 167         clear_screen = 1;
 168         offset++;
 169       }
 170     }
 171     else    /* no more common options */
 172       end_common_opts = 1;
 173   }
 174
 175   if (argc-1 == offset) {    /* no more options */
 176     Usage(argv[0]);
 177     exit(-1);
 178   }
 179
 180   /* Box options */
 181
 182   if (!strcmp(argv[offset+1], "--yesno")) {
 183     if (argc-offset != 5) {
 184       Usage(argv[0]);
 185       exit(-1);
 186     }
 187     init_dialog();
 188     retval = dialog_yesno(title, argv[offset+2], atoi(argv[offset+3]),
 189                           atoi(argv[offset+4]));
 190
 191     dialog_update();
 192     if (clear_screen)    /* clear screen before exit */
 193       dialog_clear();
 194     end_dialog();
 195     return retval;
 196   }
 197   else if (!strcmp(argv[offset+1], "--msgbox")) {
 198     if (argc-offset != 5) {
 199       Usage(argv[0]);
 200       exit(-1);
 201     }
 202     init_dialog();
 203     retval = dialog_msgbox(title, argv[offset+2], atoi(argv[offset+3]),
 204                            atoi(argv[offset+4]), 1);
 205
 206     dialog_update();
 207     if (clear_screen)   /* clear screen before exit */
 208       dialog_clear();
 209     end_dialog();
 210     return retval;
 211   }
 212   else if (!strcmp(argv[offset+1], "--prgbox")) {
 213     if (argc-offset != 5) {
 214       Usage(argv[0]);
 215       exit(-1);
 216     }
 217     init_dialog();
 218     retval = dialog_prgbox(title, argv[offset+2], atoi(argv[offset+3]),
 219                            atoi(argv[offset+4]), TRUE, TRUE);
 220
 221     dialog_update();
 222     if (clear_screen)   /* clear screen before exit */
 223       dialog_clear();
 224     end_dialog();
 225     return WEXITSTATUS(retval);
 226   }
 227   else if (!strcmp(argv[offset+1], "--infobox")) {
 228     if (argc-offset != 5) {
 229       Usage(argv[0]);
 230       exit(-1);
 231     }
 232     init_dialog();
 233     retval = dialog_msgbox(title, argv[offset+2], atoi(argv[offset+3]),
 234                            atoi(argv[offset+4]), 0);
 235
 236     dialog_update();
 237     if (clear_screen)   /* clear screen before exit */
 238       dialog_clear();
 239     end_dialog();
 240     return retval;
 241   }
 242   else if (!strcmp(argv[offset+1], "--textbox")) {
 243     if (argc-offset != 5) {
 244       Usage(argv[0]);
 245       exit(-1);
 246     }
 247     init_dialog();
 248     retval = dialog_textbox(title, argv[offset+2], atoi(argv[offset+3]),
 249                             atoi(argv[offset+4]));
 250
 251     dialog_update();
 252     if (clear_screen)   /* clear screen before exit */
 253       dialog_clear();
 254     end_dialog();
 255     return retval;
 256   }
 257   else if (!strcmp(argv[offset+1], "--menu")) {
 258     if (argc-offset < 8 || ((argc-offset) % 2)) {
 259       Usage(argv[0]);
 260       exit(-1);
 261     }
 262     init_dialog();
 263     retval = dialog_menu(title, argv[offset+2], atoi(argv[offset+3]),
 264                          atoi(argv[offset+4]), atoi(argv[offset+5]),
 265                          (argc-offset-6)/2, argv+offset + 6, result,
 266                          NULL, NULL);
 267     dialog_update();
 268     if (retval == 0)
 269         fputs(result, stderr);
 270     if (clear_screen)   /* clear screen before exit */
 271       dialog_clear();
 272     end_dialog();
 273     return retval;
 274   }
 275   else if (!strcmp(argv[offset+1], "--checklist")) {
 276     if (argc-offset < 9 || ((argc-offset-6) % 3)) {
 277       Usage(argv[0]);
 278       exit(-1);
 279     }
 280     init_dialog();
 281     retval = dialog_checklist(title, argv[offset+2], atoi(argv[offset+3]),
 282                               atoi(argv[offset+4]), atoi(argv[offset+5]),
 283                               (argc-offset-6)/3, argv+offset + 6, result);
 284
 285     dialog_update();
 286     if (retval == 0) {
 287       unsigned char *s, *h; int first;
 288
 289       h = result;
 290       first = 1;
 291       while ((s = strchr(h, '\n')) != NULL) {
 292         *s++ = '\0';
 293         if (!first)
 294           fputc(' ', stderr);
 295         else
 296           first = 0;
 297         fprintf(stderr, "\"%s\"", h);
 298         h = s;
 299       }
 300     }
 301     if (clear_screen)   /* clear screen before exit */
 302       dialog_clear();
 303     end_dialog();
 304     return retval;
 305   }
 306   else if (!strcmp(argv[offset+1], "--radiolist")) {
 307     if (argc-offset < 9 || ((argc-offset-6) % 3)) {
 308       Usage(argv[0]);
 309       exit(-1);
 310     }
 311     init_dialog();
 312     retval = dialog_radiolist(title, argv[offset+2], atoi(argv[offset+3]),
 313                               atoi(argv[offset+4]), atoi(argv[offset+5]),
 314                               (argc-offset-6)/3, argv+offset + 6, result);
 315
 316     dialog_update();
 317     if (retval == 0)
 318         fputs(result, stderr);
 319     if (clear_screen)   /* clear screen before exit */
 320       dialog_clear();
 321     end_dialog();
 322     return retval;
 323   }
 324   else if (!strcmp(argv[offset+1], "--inputbox")) {
 325     if (argc-offset != 5 && argc-offset != 6) {
 326       Usage(argv[0]);
 327       exit(-1);
 328     }
 329     if (argc-offset == 6)
 330       strcpy(result, argv[offset+5]);
 331     else
 332       *result = '\0';
 333     init_dialog();
 334     retval = dialog_inputbox(title, argv[offset+2], atoi(argv[offset+3]),
 335                              atoi(argv[offset+4]), result);
 336
 337     dialog_update();
 338     if (retval == 0)
 339         fputs(result, stderr);
 340     if (clear_screen)   /* clear screen before exit */
 341       dialog_clear();
 342     end_dialog();
 343     return retval;
 344   }
 345 /* ftree and tree options */
 346   else if (!strcmp(argv[offset+1], "--ftree")) {
 347         unsigned char *tresult;
 348     if (argc-offset != 8) {
 349       Usage(argv[0]);
 350       exit(-1);
 351     }
 352     init_dialog();
 353     retval = dialog_ftree(argv[offset+2], *argv[offset+3],
 354         title, argv[offset+4], atoi(argv[offset+5]), atoi(argv[offset+6]),
 355                             atoi(argv[offset+7]), &tresult);
 356
 357     dialog_update();
 358     if (!retval)
 359     {
 360         fputs(tresult, stderr);
 361         free(tresult);
 362     }
 363     if (clear_screen)   /* clear screen before exit */
 364       dialog_clear();
 365     end_dialog();
 366     return retval;
 367   }
 368   else if (!strcmp(argv[offset+1], "--tree")) {
 369         unsigned char *tresult;
 370     if (argc-offset < 8) {
 371       Usage(argv[0]);
 372       exit(-1);
 373     }
 374     init_dialog();
 375     retval = dialog_tree((unsigned char **)argv+offset+7, argc-offset-7,
 376         *argv[offset+2], title, argv[offset+3], atoi(argv[offset+4]),
 377         atoi(argv[offset+5]), atoi(argv[offset+6]), &tresult);
 378
 379     dialog_update();
 380     if (!retval)
 381         fputs(tresult, stderr);
 382
 383     if (clear_screen)   /* clear screen before exit */
 384       dialog_clear();
 385     end_dialog();
 386     return retval;
 387   }
 388
 389   Usage(argv[0]);
 390   exit(-1);
 391 }
 392 /* End of main() */
 393
 394
 395 /*
 396  * Print program usage
 397  */
 398 void Usage(char *name)
 399 {
 400   fprintf(stderr, "\
 401 \ndialog version 0.3, by Savio Lam (lam836@cs.cuhk.hk).\
 402 \n  patched to version %s by Stuart Herbert (S.Herbert@shef.ac.uk)\
 403 \n  Changes Copyright (C) 1995 by Andrey A. Chernov, Moscow, Russia\
 404 \n  patched by Anatoly A. Orehovsky (tolik@mpeks.tomsk.su)\
 405 \n\
 406 \n* Display dialog boxes from shell scripts *\
 407 \n\
 408 \nUsage: %s --clear\
 409 \n       %s --create-rc <file>\
 410 \n       %s [--title <title>] [--clear] [--hline <line>] [--hfile <file>]\\\
 411 \n              <Box options>\
 412 \n\
 413 \nBox options:\
 414 \n\
 415 \n  --yesno     <text> <height> <width>\
 416 \n  --msgbox    <text> <height> <width>\
 417 \n  --prgbox    \"<command line>\" <height> <width>\
 418 \n  --infobox   <text> <height> <width>\
 419 \n  --inputbox  <text> <height> <width> [<init string>]\
 420 \n  --textbox   <file> <height> <width>\
 421 \n  --menu      <text> <height> <width> <menu height> <tag1> <item1>...\
 422 \n  --checklist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
 423 \n  --radiolist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
 424 \n  --ftree     <file> <FS> <text> <height> <width> <menu height>\
 425 \n  --tree      <FS> <text> <height> <width> <menu height> <item1>...\n", VERSION, name, name, name);
 426 }
 427 /* End of Usage() */