File: /usr/src/linux/scripts/lxdialog/lxdialog.c
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 #ifdef TRACE
67 trace(TRACE_CALLS|TRACE_UPDATE);
68 #endif
69 if (argc < 2) {
70 Usage (argv[0]);
71 exit (-1);
72 }
73
74 while (offset < argc - 1 && !end_common_opts) { /* Common options */
75 if (!strcmp (argv[offset + 1], "--title")) {
76 if (argc - offset < 3 || title != NULL) {
77 Usage (argv[0]);
78 exit (-1);
79 } else {
80 title = argv[offset + 2];
81 offset += 2;
82 }
83 } else if (!strcmp (argv[offset + 1], "--backtitle")) {
84 if (backtitle != NULL) {
85 Usage (argv[0]);
86 exit (-1);
87 } else {
88 backtitle = argv[offset + 2];
89 offset += 2;
90 }
91 } else if (!strcmp (argv[offset + 1], "--clear")) {
92 if (clear_screen) { /* Hey, "--clear" can't appear twice! */
93 Usage (argv[0]);
94 exit (-1);
95 } else if (argc == 2) { /* we only want to clear the screen */
96 init_dialog ();
97 refresh (); /* init_dialog() will clear the screen for us */
98 end_dialog ();
99 return 0;
100 } else {
101 clear_screen = 1;
102 offset++;
103 }
104 } else /* no more common options */
105 end_common_opts = 1;
106 }
107
108 if (argc - 1 == offset) { /* no more options */
109 Usage (argv[0]);
110 exit (-1);
111 }
112 /* use a table to look for the requested mode, to avoid code duplication */
113
114 for (modePtr = modes; modePtr->name; modePtr++) /* look for the mode */
115 if (!strcmp (argv[offset + 1], modePtr->name))
116 break;
117
118 if (!modePtr->name)
119 Usage (argv[0]);
120 if (argc - offset < modePtr->argmin)
121 Usage (argv[0]);
122 if (modePtr->argmax && argc - offset > modePtr->argmax)
123 Usage (argv[0]);
124
125
126
127 init_dialog ();
128 retval = (*(modePtr->jumper)) (title, argc - offset, argv + offset);
129
130 if (clear_screen) { /* clear screen before exit */
131 attr_clear (stdscr, LINES, COLS, screen_attr);
132 refresh ();
133 }
134 end_dialog();
135
136 exit (retval);
137 }
138
139 /*
140 * Print program usage
141 */
142 static void
143 Usage (const char *name)
144 {
145 fprintf (stderr, "\
146 \ndialog, by Savio Lam (lam836@cs.cuhk.hk).\
147 \n patched by Stuart Herbert (S.Herbert@shef.ac.uk)\
148 \n modified/gutted for use as a Linux kernel config tool by \
149 \n William Roadcap (roadcapw@cfw.com)\
150 \n\
151 \n* Display dialog boxes from shell scripts *\
152 \n\
153 \nUsage: %s --clear\
154 \n %s [--title <title>] [--backtitle <backtitle>] --clear <Box options>\
155 \n\
156 \nBox options:\
157 \n\
158 \n --menu <text> <height> <width> <menu height> <tag1> <item1>...\
159 \n --checklist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
160 \n --radiolist <text> <height> <width> <list height> <tag1> <item1> <status1>...\
161 \n --textbox <file> <height> <width>\
162 \n --inputbox <text> <height> <width> [<init>]\
163 \n --yesno <text> <height> <width>\
164 \n", name, name);
165 exit (-1);
166 }
167
168 /*
169 * These are the program jumpers
170 */
171
172 int
173 j_menu (const char *t, int ac, const char * const * av)
174 {
175 return dialog_menu (t, av[2], atoi (av[3]), atoi (av[4]),
176 atoi (av[5]), av[6], (ac - 6) / 2, av + 7);
177 }
178
179 int
180 j_checklist (const char *t, int ac, const char * const * av)
181 {
182 return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),
183 atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_CHECK);
184 }
185
186 int
187 j_radiolist (const char *t, int ac, const char * const * av)
188 {
189 return dialog_checklist (t, av[2], atoi (av[3]), atoi (av[4]),
190 atoi (av[5]), (ac - 6) / 3, av + 6, FLAG_RADIO);
191 }
192
193 int
194 j_textbox (const char *t, int ac, const char * const * av)
195 {
196 return dialog_textbox (t, av[2], atoi (av[3]), atoi (av[4]));
197 }
198
199 int
200 j_yesno (const char *t, int ac, const char * const * av)
201 {
202 return dialog_yesno (t, av[2], atoi (av[3]), atoi (av[4]));
203 }
204
205 int
206 j_inputbox (const char *t, int ac, const char * const * av)
207 {
208 int ret = dialog_inputbox (t, av[2], atoi (av[3]), atoi (av[4]),
209 ac == 6 ? av[5] : (char *) NULL);
210 if (ret == 0)
211 fprintf(stderr, dialog_input_result);
212 return ret;
213 }
214
215 int
216 j_msgbox (const char *t, int ac, const char * const * av)
217 {
218 return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 1);
219 }
220
221 int
222 j_infobox (const char *t, int ac, const char * const * av)
223 {
224 return dialog_msgbox (t, av[2], atoi (av[3]), atoi (av[4]), 0);
225 }
226
227