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Commit | Line | Data |
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7ac48069 | 1 | /* $Id $ |
7189310c | 2 | * |
7ac48069 | 3 | * Display function for userreg client |
4 | * | |
5 | * Copyright (C) 1988-1998 by the Massachusetts Institute of Technology. | |
6 | * For copying and distribution information, please see the file | |
7 | * <mit-copyright.h>. | |
989a2c2c | 8 | */ |
9 | ||
7189310c | 10 | #include <mit-copyright.h> |
7ac48069 | 11 | #include <moira.h> |
12 | ||
989a2c2c | 13 | #include <curses.h> |
7ac48069 | 14 | #include <stdio.h> |
15 | #include <time.h> | |
16 | #include <unistd.h> | |
17 | ||
989a2c2c | 18 | #include "userreg.h" |
19 | ||
7ac48069 | 20 | RCSID("$Header$"); |
21 | ||
22 | void make_border(int l); | |
23 | void query_user(char *prompt, char *buf, int maxsize, int timeout, | |
24 | int echop, int emptyok, int valuep); | |
25 | ||
989a2c2c | 26 | #define DESC_WIDTH 18 |
a2b4a2ee | 27 | #define HEADER "*** Athena User Account Registration ***" |
a2b4a2ee | 28 | #define HELP " Press backspace to delete a character. Press Ctrl-C to start over." |
989a2c2c | 29 | #define BORDER_CHAR '-' |
30 | #define MIN_COLS 80 | |
31 | #define MIN_LINES 24 | |
32 | ||
7ac48069 | 33 | WINDOW *displayw, *queryw; |
34 | WINDOW *dataw, *helpw; | |
35 | WINDOW *fnamew, *midw, *lnamew, *idw, *loginw; | |
7ff930df | 36 | extern char typed_mit_id[100]; |
989a2c2c | 37 | |
38 | /* Set up the windows and subwindows on the display */ | |
7ac48069 | 39 | void setup_display(void) |
5eaef520 | 40 | { |
5eaef520 | 41 | initscr(); /* Start up curses */ |
989a2c2c | 42 | |
5eaef520 | 43 | if (COLS < MIN_COLS || LINES < MIN_LINES) |
44 | { | |
45 | fprintf(stderr, "Screen must be at least %d x %d\n", | |
46 | MIN_LINES, MIN_COLS); | |
47 | exit(1); | |
48 | } | |
94464a85 | 49 | |
5eaef520 | 50 | noecho(); /* And the tty input */ |
51 | raw(); | |
52 | freopen("/dev/null", "w", stderr);/* Toss the standard error output */ | |
989a2c2c | 53 | |
5eaef520 | 54 | /* Make sure the place is clean */ |
55 | clear(); | |
989a2c2c | 56 | |
5eaef520 | 57 | /* Set up the top-level windows */ |
58 | /* First line is the header */ | |
59 | displayw = subwin(stdscr, 12, 0, 2, 0);/* Lines 2-13 */ | |
60 | scrollok(displayw, TRUE); | |
989a2c2c | 61 | |
5eaef520 | 62 | queryw = subwin(stdscr, 1, 0, 15, 0);/* Line 15 */ |
63 | scrollok(queryw, TRUE); | |
989a2c2c | 64 | |
5eaef520 | 65 | dataw = subwin(stdscr, 5, 0, 17, 0);/* Lines 17-21 */ |
989a2c2c | 66 | |
5eaef520 | 67 | /* Set up the data windows */ |
68 | fnamew = subwin(stdscr, 1, 0, 17, DESC_WIDTH); | |
69 | midw = subwin(stdscr, 1, 0, 18, DESC_WIDTH); | |
70 | lnamew = subwin(stdscr, 1, 0, 19, DESC_WIDTH); | |
71 | idw = subwin(stdscr, 1, 0, 20, DESC_WIDTH); | |
72 | loginw = subwin(stdscr, 1, 0, 21, DESC_WIDTH); | |
989a2c2c | 73 | } |
74 | ||
75 | /* Clear and restore the display */ | |
7ac48069 | 76 | void reset_display(void) |
5eaef520 | 77 | { |
78 | clear(); | |
79 | ||
80 | /* Put back the borders */ | |
81 | make_border(1); | |
82 | make_border(14); | |
83 | make_border(16); | |
84 | make_border(22); | |
85 | ||
86 | /* Put in the window dressing */ | |
87 | wmove(dataw, 0, 0); | |
88 | waddstr(dataw, "First Name:\n"); | |
89 | waddstr(dataw, "Middle Initial:\n"); | |
90 | waddstr(dataw, "Family Name:\n"); | |
91 | waddstr(dataw, "MIT ID #:\n\n"); | |
92 | waddstr(dataw, "Username:\n"); | |
93 | wclrtoeol(dataw); | |
94 | ||
95 | /* Set up the header */ | |
96 | mvaddstr(0, (COLS - strlen (HEADER)) / 2, HEADER); | |
97 | mvaddstr(23, 0, HELP); | |
98 | ||
99 | /* Put it all up */ | |
100 | refresh(); | |
989a2c2c | 101 | } |
102 | ||
103 | ||
104 | /* Make a one-line border on line l of stdscr */ | |
7ac48069 | 105 | void make_border(int l) |
989a2c2c | 106 | { |
5eaef520 | 107 | int i; |
989a2c2c | 108 | |
5eaef520 | 109 | move(l, 0); |
110 | for(i = 0; i < COLS - 1; i++) | |
111 | addch(BORDER_CHAR); | |
989a2c2c | 112 | } |
113 | ||
114 | /* This replaces several "useful" display functions in the old userreg */ | |
7ac48069 | 115 | void redisp(void) |
5eaef520 | 116 | { |
117 | mvwprintw(fnamew, 0, 0, "%-24s", user.u_first); | |
e6b3a349 | 118 | wrefresh(fnamew); |
5eaef520 | 119 | mvwprintw(midw, 0, 0, "%-24s", user.u_mid_init); |
e6b3a349 | 120 | wrefresh(midw); |
5eaef520 | 121 | mvwprintw(lnamew, 0, 0, "%-24s", user.u_last); |
e6b3a349 | 122 | wrefresh(lnamew); |
5eaef520 | 123 | mvwprintw(idw, 0, 0, "%-24s", typed_mit_id); |
e6b3a349 | 124 | wrefresh(idw); |
5eaef520 | 125 | mvwprintw(loginw, 0, 0, "%-24s", user.u_login); |
e6b3a349 | 126 | wrefresh(loginw); |
989a2c2c | 127 | } |
128 | ||
129 | ||
130 | /* Input and input_no_echo exist only to save on retyping */ | |
7ac48069 | 131 | void input(char *prompt, char *buf, int maxsize, int timeout, int emptyok) |
989a2c2c | 132 | { |
5eaef520 | 133 | query_user(prompt, buf, maxsize, timeout, TRUE, emptyok, TRUE); |
989a2c2c | 134 | } |
135 | ||
7ac48069 | 136 | void input_no_echo(char *prompt, char *buf, int maxsize, int timeout) |
989a2c2c | 137 | { |
5eaef520 | 138 | query_user(prompt, buf, maxsize, timeout, FALSE, FALSE, TRUE); |
989a2c2c | 139 | } |
140 | ||
141 | ||
4127ae1e | 142 | /* make the user press any key to continue */ |
7ac48069 | 143 | void wait_for_user(void) |
4127ae1e | 144 | { |
5eaef520 | 145 | char buf[BUFSIZ]; |
4127ae1e | 146 | |
5eaef520 | 147 | redisp(); |
148 | query_user("Press RETURN or ENTER to continue", buf, 1, | |
149 | 15 * 60, FALSE, TRUE, FALSE); | |
4127ae1e | 150 | } |
151 | ||
989a2c2c | 152 | |
153 | /* Gets input through the query buffer */ | |
154 | /* Exit(1)'s on read errors */ | |
155 | /* Signals SIGALRM after 'timeout' seconds */ | |
7ac48069 | 156 | void query_user(char *prompt, char *buf, int maxsize, int timeout, |
157 | int echop, int emptyok, int valuep) | |
989a2c2c | 158 | { |
5eaef520 | 159 | int c; |
160 | int i; | |
989a2c2c | 161 | struct itimerval it; |
162 | ||
163 | retry: | |
164 | /* Set up interval timer */ | |
165 | it.it_interval.tv_sec = 0; | |
166 | it.it_interval.tv_usec = 0; | |
167 | it.it_value.tv_sec = timeout; | |
168 | it.it_value.tv_usec = 0; | |
5eaef520 | 169 | setitimer(ITIMER_REAL, &it, NULL); |
989a2c2c | 170 | |
171 | /* Erase the query window and put up a prompt */ | |
5eaef520 | 172 | werase(queryw); |
173 | mvwaddstr(queryw, 0, 0, prompt); | |
174 | waddch(queryw, ' '); /* Put in a space, as Blox does */ | |
175 | wrefresh(queryw); | |
989a2c2c | 176 | |
177 | i = 0; | |
5eaef520 | 178 | while ((c = getchar()) != '\r' && c != '\n') |
179 | { | |
180 | switch (c) | |
181 | { | |
182 | case '\025': /* Ctl-U */ | |
183 | goto retry; | |
184 | case EOF: | |
185 | /* We're in raw mode, so EOF means disaster */ | |
186 | exit(1); | |
187 | break; | |
188 | delchar: | |
189 | case '\177': /* Delete */ | |
190 | case '\010': /* Backspace */ | |
191 | if (i) | |
192 | { | |
193 | i--; | |
194 | if (echop) | |
195 | { | |
196 | int x, y; | |
197 | getyx(queryw, y, x); | |
198 | wmove(queryw, y, x - 1); | |
199 | wclrtoeol(queryw); | |
200 | wrefresh(queryw); | |
201 | } | |
202 | } | |
203 | break; | |
204 | case '\003': /* Ctrl-C */ | |
205 | clear(); | |
206 | restore_display(); | |
207 | exit(0); | |
208 | break; | |
209 | default: | |
210 | if (c >= ' ') /* Ignore all other control chars */ | |
211 | { | |
212 | buf[i++] = c; | |
213 | if (echop) | |
214 | { | |
215 | waddch(queryw, c); | |
216 | wrefresh(queryw); | |
217 | } | |
218 | } | |
219 | break; | |
989a2c2c | 220 | } |
5eaef520 | 221 | if (valuep && i >= maxsize) |
222 | { | |
223 | wfeep(); | |
224 | wprintw(displayw, "You are not allowed to type more than %d " | |
225 | "characters for this answer.\n", maxsize - 1); | |
226 | wrefresh(displayw); | |
227 | goto delchar; | |
989a2c2c | 228 | } |
989a2c2c | 229 | } |
989a2c2c | 230 | |
5eaef520 | 231 | if (i == 0) |
232 | { | |
4127ae1e | 233 | if (emptyok && valuep && |
234 | (askyn("Do you really want this field left blank (y/n)? ") == NO)) | |
235 | goto retry; | |
5eaef520 | 236 | if (!emptyok) |
237 | { | |
4127ae1e | 238 | wprintw(displayw, "You must enter something here.\n"); |
239 | wrefresh(displayw); | |
240 | goto retry; | |
5eaef520 | 241 | } |
242 | } | |
243 | ||
989a2c2c | 244 | |
245 | /* Input is complete so disable interval timer. */ | |
246 | it.it_interval.tv_sec = 0; | |
247 | it.it_interval.tv_usec = 0; | |
248 | it.it_value.tv_sec = 0; | |
249 | it.it_value.tv_usec = 0; | |
5eaef520 | 250 | setitimer(ITIMER_REAL, &it, NULL); |
989a2c2c | 251 | |
252 | buf[i] = '\0'; /* Put a null on the end */ | |
253 | ||
5eaef520 | 254 | werase(queryw); /* Clean up the query window */ |
255 | wrefresh(queryw); | |
989a2c2c | 256 | |
257 | return; /* And get out of here. */ | |
258 | } | |
259 | ||
5eaef520 | 260 | int askyn(char *prompt) |
989a2c2c | 261 | { |
262 | int ypos, xpos; | |
263 | int answer; | |
264 | struct itimerval it; | |
8b2d95d4 | 265 | int c; |
989a2c2c | 266 | |
5eaef520 | 267 | start: |
268 | werase(queryw); | |
269 | mvwaddstr(queryw, 0, 0, prompt); | |
270 | wrefresh(queryw); | |
989a2c2c | 271 | |
7ff930df | 272 | getyx(queryw, ypos, xpos); |
989a2c2c | 273 | answer = 2; /* No answer. */ |
5eaef520 | 274 | |
989a2c2c | 275 | /* Reset interval timer for y/n question. */ |
276 | it.it_interval.tv_sec = 0; | |
277 | it.it_interval.tv_usec = 0; | |
278 | it.it_value.tv_sec = YN_TIMEOUT; | |
279 | it.it_value.tv_usec = 0; | |
5eaef520 | 280 | setitimer(ITIMER_REAL, &it, NULL); |
281 | ||
282 | while ((c = getchar ()) != '\r' && c != '\n') /* Wait for CR. */ | |
283 | { | |
284 | switch (c) | |
285 | { | |
286 | case 'n': /* No. */ | |
287 | case 'N': | |
288 | wmove(queryw, ypos, xpos); | |
289 | wclrtoeol(queryw); | |
290 | waddstr(queryw, "no"); | |
291 | wrefresh(queryw); | |
292 | answer = NO; | |
293 | continue; | |
294 | case 'y': /* Yes. */ | |
295 | case 'Y': | |
296 | wmove(queryw, ypos, xpos); | |
297 | wclrtoeol(queryw); | |
298 | waddstr(queryw, "yes"); | |
299 | wrefresh(queryw); | |
300 | answer = YES; | |
301 | continue; | |
302 | case '\177': /* Delete */ | |
303 | case '\010': /* Backspace */ | |
304 | case '\025': /* Ctl-U */ | |
305 | wmove(queryw, ypos, xpos); | |
306 | wclrtoeol(queryw); | |
307 | wrefresh(queryw); | |
308 | answer = 2; /* No answer. */ | |
309 | break; | |
310 | case EOF: | |
311 | /* We're in raw mode, so EOF means disaster */ | |
312 | exit(1); | |
313 | break; | |
314 | case '\003': /* Ctrl-C */ | |
315 | clear(); | |
316 | restore_display(); | |
317 | exit(0); | |
318 | break; | |
319 | default: /* Ignore everything else. */ | |
320 | break; | |
321 | } | |
989a2c2c | 322 | } |
323 | ||
324 | if (answer == 2) /* No answer. */ | |
5eaef520 | 325 | { |
326 | display_text_line(0); | |
989a2c2c | 327 | display_text_line("Please answer y or n."); |
328 | goto start; | |
329 | } | |
5eaef520 | 330 | |
331 | return answer; | |
989a2c2c | 332 | } |
333 | ||
334 | /* Display_text_line puts up a line of text in the display window */ | |
335 | /* Special case: if line is 0, clear the display area */ | |
7ac48069 | 336 | void display_text_line(char *line) |
989a2c2c | 337 | { |
5eaef520 | 338 | if (line) |
339 | { | |
340 | waddstr(displayw, line); | |
341 | waddch(displayw, '\n'); | |
342 | } | |
343 | else | |
344 | werase(displayw); | |
345 | wrefresh(displayw); | |
989a2c2c | 346 | } |
347 | ||
a2b4a2ee | 348 | /* Display_text displays a canned message from a file. The string |
349 | * will get imbedded in any %s's in the text. | |
350 | */ | |
7ac48069 | 351 | void display_text(char *filename, char *string) |
989a2c2c | 352 | { |
353 | FILE * fp; | |
5eaef520 | 354 | char buf[100], buf1[110]; |
989a2c2c | 355 | |
5eaef520 | 356 | werase(displayw); |
357 | if (!(fp = fopen (filename, "r"))) | |
358 | { | |
359 | wprintw (displayw, "Can't open file %s for reading.\n", filename); | |
360 | return; | |
361 | } | |
989a2c2c | 362 | |
5eaef520 | 363 | while (fgets (buf, 100, fp)) |
364 | { | |
a2b4a2ee | 365 | /* get rid of the newline */ |
5eaef520 | 366 | buf[strlen(buf) - 1] = '\0'; |
a2b4a2ee | 367 | sprintf(buf1, buf, string); |
368 | waddstr(displayw, buf1); | |
369 | waddch(displayw, '\n'); | |
5eaef520 | 370 | } |
989a2c2c | 371 | |
a2b4a2ee | 372 | wrefresh(displayw); |
5eaef520 | 373 | fclose(fp); |
989a2c2c | 374 | } |
375 | ||
376 | /* Clear_display wipes the display and turns off curses */ | |
7ac48069 | 377 | void restore_display(void) |
989a2c2c | 378 | { |
379 | clear(); | |
380 | refresh(); | |
381 | noraw(); | |
382 | echo(); | |
383 | endwin(); | |
384 | } | |
385 | ||
7ac48069 | 386 | void timer_on(void) |
989a2c2c | 387 | { |
388 | struct itimerval it; | |
389 | ||
390 | it.it_interval.tv_sec = 0; | |
391 | it.it_interval.tv_usec = 0; | |
392 | it.it_value.tv_sec = TIMER_TIMEOUT; | |
393 | it.it_value.tv_usec = 0; | |
5eaef520 | 394 | setitimer(ITIMER_REAL, &it, NULL); |
989a2c2c | 395 | } |
396 | ||
7ac48069 | 397 | void timer_off(void) |
989a2c2c | 398 | { |
399 | struct itimerval it; | |
400 | ||
401 | it.it_interval.tv_sec = 0; | |
402 | it.it_interval.tv_usec = 0; | |
403 | it.it_value.tv_sec = 0; | |
404 | it.it_value.tv_usec = 0; | |
5eaef520 | 405 | setitimer(ITIMER_REAL, &it, NULL); |
989a2c2c | 406 | } |
407 | ||
4127ae1e | 408 | |
7ac48069 | 409 | void wfeep(void) |
4127ae1e | 410 | { |
5eaef520 | 411 | char buf = '\007'; |
412 | write(1, &buf, 1); | |
4127ae1e | 413 | } |