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1 | /* | |
2 | * Copyright 1987 by the Massachusetts Institute of Technology. | |
3 | * For copying and distribution information, see the file | |
4 | * "mit-copyright.h". | |
5 | * | |
6 | * $Source$ | |
7 | * $Author$ | |
8 | * $Header$ | |
9 | * | |
10 | * Generic menu system module. | |
11 | * | |
12 | * Basically, we define an enormous tree structure which represents the | |
13 | * menu. Some extra pieces (ml_command, ma_doc) get thrown in so we can | |
14 | * also use the structure for a command-based system. | |
15 | * | |
16 | * By making the menu descriptions so general, we can ease porting to just | |
17 | * about anything. | |
18 | */ | |
19 | ||
20 | #ifndef lint | |
21 | static char rcsid_menu_c[] = "$Header$"; | |
22 | ||
23 | #endif lint | |
24 | ||
25 | #include <mit-copyright.h> | |
26 | #include <sys/types.h> | |
27 | #include <stdio.h> | |
28 | #include <signal.h> | |
29 | #include <curses.h> | |
30 | #ifdef _AUX_SOURCE | |
31 | #include <sys/termio.h> | |
32 | #include <sys/ttychars.h> | |
33 | #endif /* _AUX_SOURCE */ | |
34 | #include <ctype.h> | |
35 | #include <strings.h> | |
36 | #include <varargs.h> | |
37 | #include <com_err.h> | |
38 | #include "menu.h" | |
39 | ||
40 | #ifndef __STDC__ | |
41 | #define const | |
42 | #endif | |
43 | ||
44 | #define MAX(A,B) ((A) > (B) ? (A) : (B)) | |
45 | #define MIN(A,B) ((A) < (B) ? (A) : (B)) | |
46 | #define CTL(ch) ((ch) & 037) | |
47 | ||
48 | #define MIN_INPUT 2 /* Minimum number of lines for input window */ | |
49 | ||
50 | extern int interrupt; /* will be set if ^C is received */ | |
51 | extern FILE *fdopen(); | |
52 | extern int getpid(); | |
53 | extern char *calloc(); | |
54 | extern char *whoami; | |
55 | ||
56 | FILE *log_file = (FILE *) NULL; /* file stream of log file */ | |
57 | int more_flg = 1; | |
58 | ||
59 | /* Structure for holding current displayed menu */ | |
60 | struct menu_screen { | |
61 | WINDOW *ms_screen; /* Window for this menu */ | |
62 | WINDOW *ms_title; /* Title subwindow */ | |
63 | WINDOW *ms_menu; /* Menu subwindow */ | |
64 | WINDOW *ms_input; /* Input subwindow */ | |
65 | int ms_input_y; /* Input subwindow reference coordinate */ | |
66 | } *cur_ms; | |
67 | ||
68 | #define NULLMS ((struct menu_screen *) 0) | |
69 | ||
70 | Menu *top_menu; /* Root for command search */ | |
71 | int parsed_argc; /* used by extern routines to get additional */ | |
72 | char **parsed_argv; /* comand line input */ | |
73 | ||
74 | /* | |
75 | * Hook function to cause error messages to be printed through | |
76 | * curses instead of around it. Takes at most 5 args to the | |
77 | * printf string (crock...) | |
78 | */ | |
79 | ||
80 | void | |
81 | menu_com_err_hook(who, code, fmt, arg1, arg2, arg3, arg4, arg5) | |
82 | const char *who; | |
83 | long code; | |
84 | const char *fmt; | |
85 | caddr_t arg1, arg2, arg3, arg4, arg5; | |
86 | { | |
87 | char buf[BUFSIZ], *cp; | |
88 | ||
89 | (void) strcpy(buf, who); | |
90 | for (cp = buf; *cp; cp++); | |
91 | *cp++ = ':'; | |
92 | *cp++ = ' '; | |
93 | if (code) { | |
94 | (void) strcpy(cp, error_message(code)); | |
95 | while (*cp) | |
96 | cp++; | |
97 | } | |
98 | sprintf(cp, fmt, arg1, arg2, arg3, arg4, arg5); | |
99 | Put_message(buf); | |
100 | } | |
101 | ||
102 | /* | |
103 | * Start_menu takes a menu as an argument. It initializes curses u.s.w., | |
104 | * and a quit in any submenu should unwind back to here. (it might not, | |
105 | * if user functions which run their own menus don't cooperate.) | |
106 | * Start_menu should only be called once, at the start of the program. | |
107 | */ | |
108 | Start_menu(m) | |
109 | Menu *m; | |
110 | { | |
111 | struct menu_screen *make_ms(); | |
112 | #ifdef __STDC__ | |
113 | register void (*old_hook)(const char *, long, const char *, va_list) = set_com_err_hook(menu_com_err_hook); | |
114 | #else | |
115 | register void (*old_hook)() = set_com_err_hook(menu_com_err_hook); | |
116 | #endif | |
117 | ||
118 | if (initscr() == (WINDOW *)ERR) { | |
119 | fputs("Can't initialize curses!\n", stderr); | |
120 | Start_no_menu(m); | |
121 | } else { | |
122 | (void) raw(); /* We parse & print everything ourselves */ | |
123 | (void) noecho(); | |
124 | cur_ms = make_ms(0); /* So we always have some current */ | |
125 | /* menu_screen */ | |
126 | /* Run the menu */ | |
127 | (void) Do_menu(m, -1, (char **) NULL); | |
128 | } | |
129 | (void) set_com_err_hook(old_hook); | |
130 | Cleanup_menu(); | |
131 | } | |
132 | ||
133 | Cleanup_menu() | |
134 | { | |
135 | if (cur_ms) { | |
136 | (void) wclear(cur_ms->ms_screen); | |
137 | (void) wrefresh(cur_ms->ms_screen); | |
138 | } | |
139 | endwin(); | |
140 | } | |
141 | ||
142 | ||
143 | /* Like Start_menu, except it doesn't print menus and doesn't use curses */ | |
144 | Start_no_menu(m) | |
145 | Menu *m; | |
146 | { | |
147 | cur_ms = NULLMS; | |
148 | COLS = 80; | |
149 | /* Run the menu */ | |
150 | (void) Do_menu(m, -1, (char **) NULL); | |
151 | } | |
152 | ||
153 | /* | |
154 | * Create a new menu screen template with the specified menu length | |
155 | * and return it. | |
156 | */ | |
157 | struct menu_screen * | |
158 | make_ms(length) | |
159 | int length; | |
160 | { | |
161 | struct menu_screen *ms; | |
162 | char *malloc(); | |
163 | ||
164 | if (MAX_TITLE + length + MIN_INPUT > LINES) { | |
165 | fputs("Menu too big!\n", stderr); | |
166 | exit(2); | |
167 | } | |
168 | ||
169 | ms = (struct menu_screen *) malloc(sizeof(struct menu_screen)); | |
170 | ||
171 | ms->ms_screen = newwin(0, 0, 0, 0); | |
172 | ms->ms_title = subwin(ms->ms_screen, MAX_TITLE, 0, 0, 0); | |
173 | ms->ms_menu = subwin(ms->ms_screen, | |
174 | length, 0, MAX_TITLE, 0); | |
175 | ms->ms_input = subwin(ms->ms_screen, 0, 0, | |
176 | ms->ms_input_y = MAX_TITLE + length, | |
177 | 0); | |
178 | ||
179 | scrollok(ms->ms_input, TRUE); | |
180 | (void) wmove(ms->ms_input, 0, 0); | |
181 | (void) wclear(ms->ms_screen); | |
182 | ||
183 | return (ms); | |
184 | } | |
185 | ||
186 | /* | |
187 | * This routine destroys a menu_screen. | |
188 | */ | |
189 | destroy_ms(ms) | |
190 | struct menu_screen *ms; | |
191 | { | |
192 | delwin(ms->ms_title); | |
193 | delwin(ms->ms_menu); | |
194 | delwin(ms->ms_input); | |
195 | delwin(ms->ms_screen); | |
196 | free((char *) ms); | |
197 | } | |
198 | ||
199 | /* | |
200 | * This guy actually puts up the menu | |
201 | * Note: if margc < 0, no 'r' option will be displayed (i.e., on the | |
202 | * top level menu) | |
203 | */ | |
204 | int | |
205 | Do_menu(m, margc, margv) | |
206 | Menu *m; | |
207 | int margc; | |
208 | char *margv[]; | |
209 | { | |
210 | struct menu_screen *my_ms = NULLMS, *old_cur_ms = NULLMS; | |
211 | char argvals[MAX_ARGC][MAX_ARGLEN]; /* This is where args are stored */ | |
212 | char buf[MAX_ARGC * MAX_ARGLEN]; | |
213 | char *argv[MAX_ARGC]; | |
214 | int line; | |
215 | int i; | |
216 | struct menu_line *command, *Find_command(); | |
217 | int argc; | |
218 | int quitflag, is_topmenu = (margc < 0); | |
219 | int toggle_logging(); | |
220 | ||
221 | /* Entry function gets called with old menu_screen still current */ | |
222 | if (m->m_entry != NULLFUNC) { | |
223 | if (m->m_entry(m, margc, margv) == DM_QUIT) | |
224 | return DM_NORMAL; | |
225 | if (parsed_argc > 0) { | |
226 | margc = parsed_argc + 1; | |
227 | margv = --parsed_argv; | |
228 | } else { | |
229 | margc--; | |
230 | margv++; | |
231 | } | |
232 | } | |
233 | ||
234 | parsed_argc = 0; | |
235 | ||
236 | /* The following get run only in curses mode */ | |
237 | if (cur_ms != NULLMS) { | |
238 | /* Get a menu_screen */ | |
239 | old_cur_ms = cur_ms; | |
240 | /* 2 is for the 2 obligatory lines; quit and toggle */ | |
241 | cur_ms = my_ms = make_ms(m->m_length + 2 + (is_topmenu ? 0 : 1)); | |
242 | ||
243 | /* Now print the title and the menu */ | |
244 | (void) wclear(my_ms->ms_menu); | |
245 | (void) wmove(my_ms->ms_title, 0, MAX(0, (COLS - | |
246 | strlen(m->m_title)) >> 1)); | |
247 | (void) wstandout(my_ms->ms_title); | |
248 | (void) waddstr(my_ms->ms_title, m->m_title); | |
249 | (void) wstandend(my_ms->ms_title); | |
250 | ||
251 | for (line = 0; line < m->m_length; line++) { | |
252 | int len = strlen(m->m_lines[line].ml_command); | |
253 | if (len > 12) len=12; | |
254 | ||
255 | (void) wmove(my_ms->ms_menu, line, 0); | |
256 | ||
257 | (void) wprintw(my_ms->ms_menu, "%2d. (%s)%*s %s.", line + 1, | |
258 | m->m_lines[line].ml_command, | |
259 | 12-len, "", | |
260 | m->m_lines[line].ml_doc); | |
261 | } | |
262 | (void) wmove(my_ms->ms_menu, line++, 0); | |
263 | if (!is_topmenu) { | |
264 | (void) waddstr(my_ms->ms_menu, | |
265 | " r. (return) Return to previous menu."); | |
266 | (void) wmove(my_ms->ms_menu, line++, 0); | |
267 | } | |
268 | (void) waddstr(my_ms->ms_menu, | |
269 | " t. (toggle) Toggle logging on and off."); | |
270 | (void) wmove(my_ms->ms_menu, line, 0); | |
271 | (void) waddstr(my_ms->ms_menu, " q. (quit) Quit."); | |
272 | } else { | |
273 | Put_message(m->m_title); | |
274 | for (line = 0; line < m->m_length; line++) { | |
275 | sprintf(buf, "%2d. (%s)%*s %s.", line + 1, | |
276 | m->m_lines[line].ml_command, | |
277 | 12 - strlen(m->m_lines[line].ml_command), "", | |
278 | m->m_lines[line].ml_doc); | |
279 | Put_message(buf); | |
280 | } | |
281 | if (!is_topmenu) | |
282 | Put_message(" r. (return) Return to previous menu."); | |
283 | Put_message(" t. (toggle) Toggle logging on and off."); | |
284 | Put_message(" q. (quit) Quit."); | |
285 | Put_message(" ?. Print this information."); | |
286 | } | |
287 | ||
288 | for (;;) { | |
289 | /* This will be set by a return val from func or submenu */ | |
290 | quitflag = DM_NORMAL; | |
291 | /* This is here because we may be coming from another menu */ | |
292 | if (cur_ms != NULL) | |
293 | touchwin(my_ms->ms_screen); | |
294 | if (margc > 1) { | |
295 | /* Initialize argv */ | |
296 | for (argc = 0; argc < MAX_ARGC; argc++) | |
297 | argv[argc] = argvals[argc]; | |
298 | argc = margc - 1; | |
299 | for (i = 1; i < margc; i++) | |
300 | strcpy(argvals[i - 1], margv[i]); | |
301 | margc = 0; | |
302 | } else { | |
303 | /* Get a command */ | |
304 | if (!Prompt_input("Command: ", buf, sizeof(buf))) { | |
305 | if (cur_ms == NULLMS && | |
306 | feof(stdin)) | |
307 | sprintf(buf, "quit"); | |
308 | else | |
309 | continue; | |
310 | } | |
311 | /* Parse it into the argument list */ | |
312 | /* If there's nothing there, try again */ | |
313 | /* Initialize argv */ | |
314 | for (argc = 0; argc < MAX_ARGC; argc++) | |
315 | argv[argc] = argvals[argc]; | |
316 | ||
317 | if ((argc = Parse_words(buf, argv, MAX_ARGLEN)) == 0) | |
318 | continue; | |
319 | } | |
320 | if ((line = atoi(argv[0])) > 0 && line <= m->m_length) { | |
321 | command = &m->m_lines[line - 1]; | |
322 | } | |
323 | else if ((!is_topmenu && | |
324 | (!strcmp(argv[0], "r") || !strcmp(argv[0], "return"))) | |
325 | || !strcmp(argv[0], "q") || !strcmp(argv[0], "quit")) { | |
326 | ||
327 | /* here if it's either return or quit */ | |
328 | if (cur_ms != NULLMS) { | |
329 | cur_ms = old_cur_ms; | |
330 | destroy_ms(my_ms); | |
331 | } | |
332 | if (m->m_exit != NULLFUNC) | |
333 | m->m_exit(m); | |
334 | return (*argv[0] == 'r' ? DM_NORMAL : DM_QUIT); | |
335 | } | |
336 | else if (argv[0][0] == '?') { | |
337 | for (line = 0; line < m->m_length; line++) { | |
338 | sprintf(buf, "%2d. (%s)%*s %s.", line + 1, | |
339 | m->m_lines[line].ml_command, | |
340 | 12 - strlen(m->m_lines[line].ml_command), "", | |
341 | m->m_lines[line].ml_doc); | |
342 | Put_message(buf); | |
343 | } | |
344 | if (!is_topmenu) | |
345 | Put_message(" r. (return) Return to previous menu."); | |
346 | Put_message(" t. (toggle) Toggle logging on and off."); | |
347 | Put_message(" q. (quit) Quit."); | |
348 | continue; | |
349 | } | |
350 | else if (!strcmp(argv[0], "t") || !strcmp(argv[0], "toggle")) { | |
351 | toggle_logging(argc, argv); | |
352 | continue; | |
353 | } | |
354 | /* finally, try to find it using Find_command */ | |
355 | else if ((command = Find_command(m, argvals[0])) == | |
356 | (struct menu_line *) 0) { | |
357 | sprintf(buf, "Command not recognized: %s\n", argvals[0]); | |
358 | Put_message(buf); | |
359 | continue; | |
360 | } | |
361 | /* If we got to here, command is a valid menu_line */ | |
362 | /* Send the offical command name into the argv */ | |
363 | (void) strcpy(argvals[0], command->ml_command); | |
364 | /* Show that we're working on it */ | |
365 | Put_message(command->ml_doc); | |
366 | /* Print args that we've already got */ | |
367 | for (i = 1; i < argc; i++) { | |
368 | if (command->ml_args[i].ma_prompt == NULL) | |
369 | break; | |
370 | (void) sprintf(buf, "%s%s", command->ml_args[i].ma_prompt, | |
371 | argv[i]); | |
372 | Put_message(buf); | |
373 | } | |
374 | /* Get remaining arguments, if any */ | |
375 | for (; argc < command->ml_argc; argc++) { | |
376 | if (!Prompt_input(command->ml_args[argc].ma_prompt, | |
377 | argvals[argc], sizeof(argvals[argc]))) | |
378 | goto punt_command; | |
379 | } | |
380 | parsed_argc = argc - command->ml_argc; | |
381 | parsed_argv = &(argv[command->ml_argc]); | |
382 | if (command->ml_function != NULLFUNC) { | |
383 | /* If it's got a function, call it */ | |
384 | quitflag = command->ml_function(argc, argv); | |
385 | } | |
386 | else if (command->ml_submenu != NULLMENU) { | |
387 | /* Else see if it is a submenu */ | |
388 | quitflag = Do_menu(command->ml_submenu, argc, argv); | |
389 | } | |
390 | else { | |
391 | /* If it's got neither, something is wrong */ | |
392 | Put_message("*INTERNAL ERROR: NO FUNCTION OR MENU FOR LINE*"); | |
393 | } | |
394 | if (quitflag == DM_QUIT) { | |
395 | if (cur_ms != NULLMS) { | |
396 | cur_ms = old_cur_ms; | |
397 | destroy_ms(my_ms); | |
398 | } | |
399 | if (m->m_exit != NULLFUNC) | |
400 | m->m_exit(m); | |
401 | parsed_argc = 0; | |
402 | return (DM_QUIT); | |
403 | } | |
404 | punt_command: | |
405 | parsed_argc = 0; | |
406 | } | |
407 | } | |
408 | ||
409 | refresh_screen() | |
410 | { | |
411 | if (cur_ms != NULLMS) { | |
412 | touchwin(cur_ms->ms_screen); | |
413 | refresh_ms(cur_ms); | |
414 | } | |
415 | } | |
416 | ||
417 | ||
418 | /* Prompt the user for input in the input window of cur_ms */ | |
419 | int Prompt_input(prompt, buf, buflen) | |
420 | char *prompt; | |
421 | char *buf; | |
422 | int buflen; | |
423 | { | |
424 | int c; | |
425 | char *p; | |
426 | int y, x, oldx, oldy; | |
427 | ||
428 | if (cur_ms != NULLMS) { | |
429 | more_flg = 1; | |
430 | getyx(cur_ms->ms_input, y, x); | |
431 | (void) wmove(cur_ms->ms_input, y, 0); | |
432 | ||
433 | refresh_screen(); | |
434 | (void) waddstr(cur_ms->ms_input, prompt); | |
435 | getyx(cur_ms->ms_input, y, x); | |
436 | ||
437 | oldx = x; | |
438 | oldy = y; | |
439 | p = buf; | |
440 | while(1) { | |
441 | (void) wmove(cur_ms->ms_input, y, x); | |
442 | (void) touchwin(cur_ms->ms_screen); | |
443 | (void) wclrtoeol(cur_ms->ms_input); | |
444 | (void) wrefresh(cur_ms->ms_input); | |
445 | c = getchar() & 0x7f; | |
446 | switch (c) { | |
447 | case CTL('C'): | |
448 | *p = '\0'; | |
449 | return 0; | |
450 | case CTL('Z'): | |
451 | (void) kill(getpid(), SIGTSTP); | |
452 | touchwin(curscr); | |
453 | break; | |
454 | case CTL('L'): | |
455 | (void) wclear(cur_ms->ms_input); | |
456 | (void) waddstr(cur_ms->ms_input, prompt); | |
457 | (void) touchwin(cur_ms->ms_input); | |
458 | (void) mvcur(0, COLS - 1, LINES - 1, 0); | |
459 | (void) wrefresh(curscr); | |
460 | getyx(cur_ms->ms_input, y, x); | |
461 | oldy = y; | |
462 | oldx = x; | |
463 | p = buf; | |
464 | break; | |
465 | ||
466 | case '\n': | |
467 | case '\r': | |
468 | goto end_input; | |
469 | /* these should be obtained by doing ioctl() on tty */ | |
470 | case '\b': | |
471 | case '\177': | |
472 | if (p > buf) { | |
473 | p--; | |
474 | x--; | |
475 | if (x < 0) { | |
476 | (void) wmove(cur_ms->ms_input, y, 0); | |
477 | (void) wclrtoeol(cur_ms->ms_input); | |
478 | y--; | |
479 | x = cur_ms->ms_input->_maxx-1; | |
480 | } | |
481 | } | |
482 | break; | |
483 | case CTL('U'): | |
484 | case CTL('G'): | |
485 | case CTL('['): | |
486 | x = oldx; | |
487 | y = oldy; | |
488 | p = buf; | |
489 | break; | |
490 | default: | |
491 | /* (buflen - 1) leaves room for the \0 */ | |
492 | if (isprint(c) && (p - buf < buflen - 1)) { | |
493 | (void) waddch(cur_ms->ms_input, c); | |
494 | *p++ = c; | |
495 | x++; | |
496 | if (x >= cur_ms->ms_input->_maxx) { | |
497 | x = 0; | |
498 | y++; | |
499 | } | |
500 | } else | |
501 | putchar(CTL('G')); | |
502 | break; | |
503 | } | |
504 | } | |
505 | end_input: | |
506 | (void) waddch(cur_ms->ms_input, '\n'); | |
507 | (void) waddch(cur_ms->ms_input, '\r'); | |
508 | ||
509 | (void) wclrtoeol(cur_ms->ms_input); | |
510 | refresh_ms(cur_ms); | |
511 | *p = '\0'; | |
512 | Start_paging(); | |
513 | goto gotit; | |
514 | } else { | |
515 | printf("%s", prompt); | |
516 | if (gets(buf) == NULL) | |
517 | return 0; | |
518 | if (interrupt) { | |
519 | interrupt = 0; | |
520 | return 0; | |
521 | } | |
522 | Start_paging(); | |
523 | goto gotit; | |
524 | } | |
525 | gotit: | |
526 | strcpy(buf, strtrim(buf)); | |
527 | return 1; | |
528 | } | |
529 | ||
530 | /* Prompt the user for input in the input window of cur_ms, but don't echo | |
531 | and allow some control characters */ | |
532 | int Password_input(prompt, buf, buflen) | |
533 | char *prompt; | |
534 | char *buf; | |
535 | int buflen; | |
536 | { | |
537 | int c; | |
538 | char *p; | |
539 | int y, x, oldx; | |
540 | ||
541 | if (cur_ms != NULLMS) { | |
542 | more_flg = 1; | |
543 | getyx(cur_ms->ms_input, y, x); | |
544 | (void) wmove(cur_ms->ms_input, y, 0); | |
545 | ||
546 | touchwin(cur_ms->ms_screen); | |
547 | refresh_ms(cur_ms); | |
548 | (void) waddstr(cur_ms->ms_input, prompt); | |
549 | getyx(cur_ms->ms_input, y, x); | |
550 | ||
551 | oldx = x; | |
552 | for (p = buf; p - buf < buflen;) { | |
553 | (void) wmove(cur_ms->ms_input, y, x); | |
554 | (void) wclrtoeol(cur_ms->ms_input); | |
555 | refresh_ms(cur_ms); | |
556 | c = getchar() & 0x7f; | |
557 | switch (c) { | |
558 | case CTL('C'): | |
559 | return 0; | |
560 | case CTL('Z'): | |
561 | (void) kill(getpid(), SIGTSTP); | |
562 | touchwin(curscr); | |
563 | break; | |
564 | case CTL('L'): | |
565 | (void) wclear(cur_ms->ms_input); | |
566 | (void) waddstr(cur_ms->ms_input, prompt); | |
567 | refresh_ms(cur_ms); | |
568 | (void) mvcur(0, COLS - 1, LINES - 1, 0); | |
569 | (void) wrefresh(curscr); | |
570 | getyx(cur_ms->ms_input, y, x); | |
571 | break; | |
572 | case '\n': | |
573 | case '\r': | |
574 | (void) waddch(cur_ms->ms_input, '\n'); | |
575 | (void) waddch(cur_ms->ms_input, '\r'); | |
576 | ||
577 | (void) wclrtoeol(cur_ms->ms_input); | |
578 | refresh_ms(cur_ms); | |
579 | *p = '\0'; | |
580 | Start_paging(); | |
581 | return 1; | |
582 | case '\b': | |
583 | case '\177': | |
584 | if (p > buf) { | |
585 | p--; | |
586 | x--; | |
587 | } | |
588 | break; | |
589 | case CTL('U'): | |
590 | x = oldx; | |
591 | p = buf; | |
592 | break; | |
593 | default: | |
594 | *p++ = c; | |
595 | break; | |
596 | } | |
597 | } | |
598 | } | |
599 | else { | |
600 | #ifdef _AUX_SOURCE | |
601 | struct termio ttybuf, nttybuf; | |
602 | #else | |
603 | struct sgttyb ttybuf, nttybuf; | |
604 | #endif /* _AUX_SOURCE */ | |
605 | printf("%s", prompt); | |
606 | /* turn off echoing */ | |
607 | #ifdef _AUX_SOURCE | |
608 | (void) ioctl(0, TCGETA, (char *)&ttybuf); | |
609 | nttybuf = ttybuf; | |
610 | nttybuf.c_lflag &= ~ECHO; | |
611 | (void)ioctl(0, TCSETA, (char *)&nttybuf); | |
612 | if (gets(buf) == NULL) { | |
613 | (void) ioctl(0, TCSETA, (char *)&ttybuf); | |
614 | putchar('\n'); | |
615 | return 0; | |
616 | } | |
617 | putchar('\n'); | |
618 | (void) ioctl(0, TCSETA, (char *)&ttybuf); | |
619 | #else | |
620 | (void) ioctl(0, TIOCGETP, (char *)&ttybuf); | |
621 | nttybuf = ttybuf; | |
622 | nttybuf.sg_flags &= ~ECHO; | |
623 | (void)ioctl(0, TIOCSETP, (char *)&nttybuf); | |
624 | if (gets(buf) == NULL) { | |
625 | (void) ioctl(0, TIOCSETP, (char *)&ttybuf); | |
626 | putchar('\n'); | |
627 | return 0; | |
628 | } | |
629 | putchar('\n'); | |
630 | (void) ioctl(0, TIOCSETP, (char *)&ttybuf); | |
631 | #endif /* _AUX_SOURCE */ | |
632 | Start_paging(); | |
633 | return 1; | |
634 | } | |
635 | return 0; | |
636 | } | |
637 | ||
638 | int lines_left; | |
639 | ||
640 | /* Start paging */ | |
641 | /* This routine will cause the most recently put message to be the | |
642 | one at the top of the screen when a ---More--- prompt is displayed */ | |
643 | Start_paging() | |
644 | { | |
645 | if (cur_ms != NULLMS) { | |
646 | lines_left = LINES - cur_ms->ms_input_y - 1; | |
647 | } | |
648 | else { | |
649 | lines_left = 23; | |
650 | } | |
651 | } | |
652 | ||
653 | /* Turn off paging */ | |
654 | Stop_paging() | |
655 | { | |
656 | lines_left = -1; | |
657 | } | |
658 | ||
659 | /* Print a message in the input window of cur_ms. */ | |
660 | Put_message(msg) | |
661 | char *msg; | |
662 | { | |
663 | char *copy, *line, *s; | |
664 | ||
665 | copy = (char *) malloc((u_int)COLS); | |
666 | s = line = msg; | |
667 | if (log_file) { /* if we're doing logging; we assume that the */ | |
668 | /* file has already been opened. */ | |
669 | (void) fprintf(log_file, "%s\n", msg); | |
670 | fflush(log_file); | |
671 | } | |
672 | ||
673 | while(*s++) { | |
674 | if (s - line >= COLS-1) { | |
675 | (void) strncpy(copy, line, COLS-1); | |
676 | line += COLS-1; | |
677 | } else if (*s == '\n') { | |
678 | *s = '\0'; | |
679 | (void) strcpy(copy, line); | |
680 | line = ++s; | |
681 | } else | |
682 | continue; | |
683 | Put_line(copy); | |
684 | } | |
685 | Put_line(line); | |
686 | free(copy); | |
687 | } | |
688 | ||
689 | /* Will be truncated to COLS characters. */ | |
690 | Put_line(msg) | |
691 | char *msg; | |
692 | { | |
693 | int y, x, i; | |
694 | char *msg1, chr; | |
695 | ||
696 | if (!more_flg) | |
697 | return; | |
698 | ||
699 | if (lines_left >= 0) { | |
700 | if (--lines_left == 0) { | |
701 | /* Give the user a more prompt */ | |
702 | if (cur_ms != NULLMS) { | |
703 | (void) wstandout(cur_ms->ms_input); | |
704 | (void) wprintw(cur_ms->ms_input, "---More---"); | |
705 | (void) wstandend(cur_ms->ms_input); | |
706 | refresh_ms(cur_ms); | |
707 | chr = getchar() & 0x7f;/* We do care what it is */ | |
708 | if (chr == 'q' || chr == 'Q' || chr == 3 /* ^C */) { | |
709 | more_flg = 0; | |
710 | return; | |
711 | } | |
712 | getyx(cur_ms->ms_input, y, x); | |
713 | /* x is a bitbucket; avoid lint problems */ | |
714 | x=x; | |
715 | (void) wmove(cur_ms->ms_input, y, 0); | |
716 | (void) wclrtoeol(cur_ms->ms_input); | |
717 | } | |
718 | else { | |
719 | printf("---More (hit return)---"); | |
720 | getchar(); | |
721 | } | |
722 | Start_paging(); /* Reset lines_left */ | |
723 | } | |
724 | } | |
725 | ||
726 | if (cur_ms != NULLMS) { | |
727 | msg1 = (char *) calloc((u_int)COLS, 1); | |
728 | (void) strncpy(msg1, msg, COLS-1); | |
729 | for (i = strlen(msg1); i < COLS - 1; i++) | |
730 | msg1[i] = ' '; | |
731 | (void) wprintw(cur_ms->ms_input, "%s\n", msg1); | |
732 | } | |
733 | else { | |
734 | puts(msg); | |
735 | } | |
736 | } | |
737 | ||
738 | /* Refresh a menu_screen onto the real screen */ | |
739 | refresh_ms(ms) | |
740 | struct menu_screen *ms; | |
741 | { | |
742 | (void) wrefresh(ms->ms_title); | |
743 | (void) wrefresh(ms->ms_menu); | |
744 | (void) wrefresh(ms->ms_input); | |
745 | } | |
746 | ||
747 | /* Parse buf into a list of words, which will be placed in strings specified by | |
748 | argv. Space for these strings must have already been allocated. | |
749 | Only the first n characters of each word will be copied */ | |
750 | Parse_words(buf, argv, n) | |
751 | char *buf; | |
752 | char *argv[]; | |
753 | int n; | |
754 | ||
755 | { | |
756 | char *start, *end; /* For sausage machine */ | |
757 | int argc; | |
758 | ||
759 | start = buf; | |
760 | for (argc = 0; argc < MAX_ARGC; argc++) { | |
761 | while (isspace(*start)) | |
762 | start++; /* Kill whitespace */ | |
763 | if (*start == '\0') | |
764 | break; /* Nothing left */ | |
765 | /* Now find the end of the word */ | |
766 | for (end = start; *end != '\0' && !isspace(*end); end++); | |
767 | (void) strncpy(argv[argc], start, MIN(end - start, n)); /* Copy it */ | |
768 | argv[argc][MIN(end - start, n - 1)] = '\0'; /* Terminate */ | |
769 | start = end; | |
770 | } | |
771 | return (argc); | |
772 | } | |
773 | ||
774 | /* This is the internal form of Find_command, which recursively searches | |
775 | for a menu_line with command command in the specified menu */ | |
776 | /* It will search to a maximum depth of d */ | |
777 | struct menu_line * | |
778 | find_command_from(c, m, d) | |
779 | char *c; | |
780 | struct menu *m; | |
781 | int d; | |
782 | { | |
783 | int line; | |
784 | struct menu_line *maybe; | |
785 | ||
786 | if (d < 0) | |
787 | return ((struct menu_line *) 0); /* Too deep! */ | |
788 | for (line = 0; line < m->m_length; line++) { | |
789 | if (!strcmp(c, m->m_lines[line].ml_command)) { | |
790 | return (&m->m_lines[line]); | |
791 | } | |
792 | } | |
793 | for (line = 0; line < m->m_length; line++) { | |
794 | if (m->m_lines[line].ml_submenu != NULLMENU && | |
795 | (maybe = find_command_from(c, m->m_lines[line].ml_submenu, d - 1)) | |
796 | != (struct menu_line *) 0) { | |
797 | return (maybe); | |
798 | } | |
799 | } | |
800 | /* If we got to here, nothing works */ | |
801 | return ((struct menu_line *) 0); | |
802 | } | |
803 | ||
804 | /* Find_command searches down the current menu tree */ | |
805 | /* And returns a pointer to a menu_line with the specified command name */ | |
806 | /* It returns (struct menu_line *) 0 if none is found */ | |
807 | struct menu_line * | |
808 | Find_command(m, command) | |
809 | Menu *m; | |
810 | char *command; | |
811 | { | |
812 | if (m == NULLMENU) { | |
813 | return ((struct menu_line *) 0); | |
814 | } | |
815 | else { | |
816 | return (find_command_from(command, m, MAX_MENU_DEPTH)); | |
817 | } | |
818 | } | |
819 | ||
820 | /*ARGSUSED*/ | |
821 | int | |
822 | toggle_logging(argc, argv) | |
823 | int argc; | |
824 | char *argv[]; | |
825 | { | |
826 | int pid; | |
827 | char buf[BUFSIZ]; | |
828 | ||
829 | if (log_file == (FILE *) NULL) { | |
830 | pid = getpid(); | |
831 | if (!whoami) { | |
832 | Put_message("I've lost my SENSE of DIRECTION! I have no IDEA who I AM!"); | |
833 | Put_message("My God... You've turned him into a DEMOCRAT!!"); | |
834 | Put_message(" -- Doonesbury"); | |
835 | Put_message(""); | |
836 | Put_message("translation: your log file can be found in \"/usr/tmp/a.out.pid\"."); | |
837 | whoami = "a.out"; | |
838 | (void) sprintf(buf, "/usr/tmp/%s-log.%d", whoami, pid); | |
839 | } | |
840 | else | |
841 | (void) sprintf(buf, "/usr/tmp/%s-log.%d", whoami, pid); | |
842 | ||
843 | /* open the file */ | |
844 | log_file = fopen(buf,"a"); | |
845 | ||
846 | if (log_file == (FILE *) NULL) | |
847 | Put_message("Open of log file failed. Logging is not on."); | |
848 | else | |
849 | Put_message("Log file successfully opened."); | |
850 | } | |
851 | else { /* log_file is a valid pointer; turn off logging. */ | |
852 | (void) fflush(log_file); | |
853 | (void) fclose(log_file); | |
854 | log_file = (FILE *) NULL; | |
855 | Put_message("Logging off."); | |
856 | } | |
857 | return(DM_NORMAL); | |
858 | } |