scripts/lxdialog/lxdialog.c

/* */
This source file includes following definitions.
main
Usage
j_menu
j_checklist
j_radiolist
j_textbox
j_yesno
j_inputbox
j_msgbox
j_infobox
   1 /*
   2  *  dialog - Display simple dialog boxes from shell scripts
   3  *
   4  *  ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
   5  *  MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
   6  *
   7  *  This program is free software; you can redistribute it and/or
   8  *  modify it under the terms of the GNU General Public License
   9  *  as published by the Free Software Foundation; either version 2
  10  *  of the License, or (at your option) any later version.
  11  *
  12  *  This program is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21 
  22 #include "dialog.h"
  23 
  24 static void Usage (const char *name);
  25 
  26 typedef int (jumperFn) (const char *title, int argc, const char * const * argv);
  27 
  28 struct Mode {
  29     char *name;
  30     int argmin, argmax, argmod;
  31     jumperFn *jumper;
  32 };
  33 
  34 jumperFn j_menu, j_checklist, j_radiolist, j_yesno, j_textbox, j_inputbox;
  35 jumperFn j_msgbox, j_infobox;
  36 
  37 static struct Mode modes[] =
  38 {
  39     {"--menu", 9, 0, 3, j_menu},
  40     {"--checklist", 9, 0, 3, j_checklist},
  41     {"--radiolist", 9, 0, 3, j_radiolist},
  42     {"--yesno",    5,5,1, j_yesno},
  43     {"--textbox",  5,5,1, j_textbox},
  44     {"--inputbox", 5, 6, 1, j_inputbox},
  45     {"--msgbox", 5, 5, 1, j_msgbox},
  46     {"--infobox", 5, 5, 1, j_infobox},
  47     {NULL, 0, 0, 0, NULL}
  48 };
  49 
  50 static struct Mode *modePtr;
  51 
  52 #ifdef LOCALE
  53 #include <locale.h>
  54 #endif
  55 
  56 int
  57 main (int argc, const char * const * argv)
     /*  */
  58 {
  59     int offset = 0, clear_screen = 0, end_common_opts = 0, retval;
  60     const char *title = NULL;
  61 
  62 #ifdef LOCALE
  63     (void) setlocale (LC_ALL, "");
  64 #endif
  65 
  66     if (argc < 2) {
  67         Usage (argv[0]);
  68         exit (-1);
  69     }
  70 
  71     while (offset < argc - 1 && !end_common_opts) {     /* Common options */
  72         if (!strcmp (argv[offset + 1], "--title")) {
  73             if (argc - offset < 3 || title != NULL) {
  74                 Usage (argv[0]);
  75                 exit (-1);
  76             } else {
  77                 title = argv[offset + 2];
  78                 offset += 2;
  79             }
  80         } else if (!strcmp (argv[offset + 1], "--backtitle")) {
  81             if (backtitle != NULL) {
  82                 Usage (argv[0]);
  83                 exit (-1);
  84             } else {
  85                 backtitle = argv[offset + 2];
  86                 offset += 2;
  87             }
  88         } else if (!strcmp (argv[offset + 1], "--clear")) {
  89             if (clear_screen) { /* Hey, "--clear" can't appear twice! */
  90                 Usage (argv[0]);
  91                 exit (-1);
  92             } else if (argc == 2) {     /* we only want to clear the screen */
  93                 init_dialog ();
  94                 refresh ();     /* init_dialog() will clear the screen for us */
  95                 end_dialog ();
  96                 return 0;
  97             } else {
  98                 clear_screen = 1;
  99                 offset++;
 100             }
 101         } else                  /* no more common options */
 102             end_common_opts = 1;
 103     }
 104 
 105     if (argc - 1 == offset) {   /* no more options */
 106         Usage (argv[0]);
 107         exit (-1);
 108     }
 109     /* use a table to look for the requested mode, to avoid code duplication */
 110 
 111     for (modePtr = modes; modePtr->name; modePtr++)     /* look for the mode */
 112         if (!strcmp (argv[offset + 1], modePtr->name))
 113             break;
 114 
 115     if (!modePtr->name)
 116         Usage (argv[0]);
 117     if (argc - offset < modePtr->argmin)
 118         Usage (argv[0]);
 119     if (modePtr->argmax && argc - offset > modePtr->argmax)
 120         Usage (argv[0]);
 121 
 122 
 123 
 124     init_dialog ();
 125     retval = (*(modePtr->jumper)) (title, argc - offset, argv + offset);
 126 
 127     if (clear_screen) {         /* clear screen before exit */
 128         attr_clear (stdscr, LINES, COLS, screen_attr);
 129         refresh ();
 130     }
 131     end_dialog();
 132 
 133     exit (retval);
 134 }
 135 
 136 /*
 137  * Print program usage
 138  */
 139 static void
 140 Usage (const char *name)
     /*  */
 141 {
 142     fprintf (stderr, "\
 143 \ndialog, by Savio Lam (lam836@cs.cuhk.hk).\
 144 \n  patched by Stuart Herbert (S.Herbert@shef.ac.uk)\
 145 \n  modified/gutted for use as a Linux kernel config tool by \
 146 \n  William Roadcap (roadcapw@cfw.com)\
 147 \n\
 148 \n* Display dialog boxes from shell scripts *\
 149 \n\
 150 \nUsage: %s --clear\
 151 \n       %s [--title <title>] [--backtitle <backtitle>] --clear <Box options>\
 152 \n\
 153 \nBox options:\
 154 \n\
 155 \n  --menu      <text> <height> <width> <menu height> <tag1> <item1>...\
 156 \n  --checklist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
 157 \n  --radiolist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
 158 \n  --textbox   <file> <height> <width>\
 159 \n  --inputbox  <text> <height> <width> [<init>]\
 160 \n  --yesno     <text> <height> <width>\
 161 ", name, name);
 162     exit (-1);
 163 }
 164 
 165 /*
 166  * These are the program jumpers
 167  */
 168 
 169 int
 170 j_menu (const char *t, int ac, const char * const * av)
     /*  */
 171 {
 172     return dialog_menu (t, av[2], atoi (av[3]), atoi (av[4]),
 173                         atoi (av[5]), av[6], (ac - 6) / 2, av + 7);
 174 }
 175 
 176 int
 177 j_checklist (const char *t, int ac, const char * const * av)
     /*  */
 178 {
 179     return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),
 180         atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_CHECK);
 181 }
 182 
 183 int
 184 j_radiolist (const char *t, int ac, const char * const * av)
     /*  */
 185 {
 186     return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),
 187         atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_RADIO);
 188 }
 189 
 190 int
 191 j_textbox (const char *t, int ac, const char * const * av)
     /*  */
 192 {
 193     return dialog_textbox (t, av[2], atoi (av[3]), atoi (av[4]));
 194 }
 195 
 196 int
 197 j_yesno (const char *t, int ac, const char * const * av)
     /*  */
 198 {
 199     return dialog_yesno (t, av[2], atoi (av[3]), atoi (av[4]));
 200 }
 201 
 202 int
 203 j_inputbox (const char *t, int ac, const char * const * av)
     /*  */
 204 {
 205     int ret = dialog_inputbox (t, av[2], atoi (av[3]), atoi (av[4]),
 206                             ac == 6 ? av[5] : (char *) NULL);
 207     if (ret == 0)
 208         fprintf(stderr, dialog_input_result);
 209     return ret;
 210 }
 211 
 212 int
 213 j_msgbox (const char *t, int ac, const char * const * av)
     /*  */
 214 {
 215     return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 1);
 216 }
 217 
 218 int
 219 j_infobox (const char *t, int ac, const char * const * av)
     /*  */
 220 {
 221     return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 0);
 222 }
 223
/* */
root/scripts/lxdialog/lxdialog.c

DEFINITIONS
