Configure tsocks with a simple heuristic.
Consider the proxy has to be in a 'local' network. It means it is directly
reachable by the local machine, even if the local machine has to hop through
one or more gates to reach the proxy (often the case in enterprise networks
where class A 10.0.0.0/8 is in fact sub-divided into smaller networks, each
one of them in a different location, eg. 10.1.0.0/16 in a place, while
10.2.0.0/16 would be on the other side of the world). Not being in the same
subnet does not mean the proxy is not available.
So we will build a mask with at most high bits set, which defines a network
that has both the local machine and the proxy. Because a machine may have
more than one interface, build a mask for each of them, removing 127.0.0.1
which is added automagically by tsocks, and removing duplicate masks.
If all of this does not work, then it means the local machine can NOT in fact
reach the proxy, which in turn means the user mis-configured something (most
probably a typo...).
/trunk/scripts/crosstool.sh | 61 52 9 0 +++++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 52 insertions(+), 9 deletions(-)
2 * inputbox.c -- implements the input box
4 * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
5 * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
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.
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.
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.
24 char dialog_input_result[MAX_LEN + 1];
27 * Print the termination buttons
29 static void print_buttons(WINDOW * dialog, int height, int width, int selected)
31 int x = width / 2 - 11;
34 print_button(dialog, " Ok ", y, x, selected == 0);
35 print_button(dialog, " Help ", y, x + 14, selected == 1);
37 wmove(dialog, y, x + 1 + 14 * selected);
42 * Display a dialog box for inputing a string
44 int dialog_inputbox(const char *title, const char *prompt, int height, int width,
47 int i, x, y, box_y, box_x, box_width;
48 int input_x = 0, scroll = 0, key = 0, button = -1;
49 char *instr = dialog_input_result;
58 if (getmaxy(stdscr) <= (height - 2))
59 return -ERRDISPLAYTOOSMALL;
60 if (getmaxx(stdscr) <= (width - 2))
61 return -ERRDISPLAYTOOSMALL;
63 /* center dialog box on screen */
64 x = (COLS - width) / 2;
65 y = (LINES - height) / 2;
67 draw_shadow(stdscr, y, x, height, width);
69 dialog = newwin(height, width, y, x);
72 draw_box(dialog, 0, 0, height, width,
73 dlg.dialog.atr, dlg.border.atr);
74 wattrset(dialog, dlg.border.atr);
75 mvwaddch(dialog, height - 3, 0, ACS_LTEE);
76 for (i = 0; i < width - 2; i++)
77 waddch(dialog, ACS_HLINE);
78 wattrset(dialog, dlg.dialog.atr);
79 waddch(dialog, ACS_RTEE);
81 print_title(dialog, title, width);
83 wattrset(dialog, dlg.dialog.atr);
84 print_autowrap(dialog, prompt, width - 2, 1, 3);
86 /* Draw the input field box */
87 box_width = width - 6;
90 box_x = (width - box_width) / 2;
91 draw_box(dialog, y + 1, box_x - 1, 3, box_width + 2,
92 dlg.border.atr, dlg.dialog.atr);
94 print_buttons(dialog, height, width, 0);
96 /* Set up the initial value */
97 wmove(dialog, box_y, box_x);
98 wattrset(dialog, dlg.inputbox.atr);
100 input_x = strlen(instr);
102 if (input_x >= box_width) {
103 scroll = input_x - box_width + 1;
104 input_x = box_width - 1;
105 for (i = 0; i < box_width - 1; i++)
106 waddch(dialog, instr[scroll + i]);
108 waddstr(dialog, instr);
111 wmove(dialog, box_y, box_x + input_x);
115 while (key != KEY_ESC) {
116 key = wgetch(dialog);
118 if (button == -1) { /* Input box selected */
130 if (input_x || scroll) {
131 wattrset(dialog, dlg.inputbox.atr);
133 scroll = scroll < box_width - 1 ? 0 : scroll - (box_width - 1);
134 wmove(dialog, box_y, box_x);
135 for (i = 0; i < box_width; i++)
137 instr[scroll + input_x + i] ?
138 instr[scroll + input_x + i] : ' ');
139 input_x = strlen(instr) - scroll;
142 instr[scroll + input_x] = '\0';
143 mvwaddch(dialog, box_y, input_x + box_x, ' ');
144 wmove(dialog, box_y, input_x + box_x);
149 if (key < 0x100 && isprint(key)) {
150 if (scroll + input_x < MAX_LEN) {
151 wattrset(dialog, dlg.inputbox.atr);
152 instr[scroll + input_x] = key;
153 instr[scroll + input_x + 1] = '\0';
154 if (input_x == box_width - 1) {
156 wmove(dialog, box_y, box_x);
157 for (i = 0; i < box_width - 1; i++)
158 waddch(dialog, instr [scroll + i]);
160 wmove(dialog, box_y, input_x++ + box_x);
165 flash(); /* Alarm user about overflow */
183 button = 1; /* Indicates "Cancel" button is selected */
184 print_buttons(dialog, height, width, 1);
187 button = -1; /* Indicates input box is selected */
188 print_buttons(dialog, height, width, 0);
189 wmove(dialog, box_y, box_x + input_x);
193 button = 0; /* Indicates "OK" button is selected */
194 print_buttons(dialog, height, width, 0);
203 button = 0; /* Indicates "OK" button is selected */
204 print_buttons(dialog, height, width, 0);
207 button = 1; /* Indicates "Cancel" button is selected */
208 print_buttons(dialog, height, width, 1);
211 button = -1; /* Indicates input box is selected */
212 print_buttons(dialog, height, width, 0);
213 wmove(dialog, box_y, box_x + input_x);
221 return (button == -1 ? 0 : button);
227 key = on_key_esc(dialog);
237 return KEY_ESC; /* ESC pressed */