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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 <sys/types.h> | |
26 | #include <stdio.h> | |
27 | #include <signal.h> | |
28 | #include <curses.h> | |
29 | #include <ctype.h> | |
30 | #include <strings.h> | |
31 | #include <varargs.h> | |
32 | #include "menu.h" | |
33 | ||
34 | #define MAX(A,B) ((A) > (B) ? (A) : (B)) | |
35 | #define MIN(A,B) ((A) < (B) ? (A) : (B)) | |
36 | #define CTL(ch) ((ch) & 037) | |
37 | ||
38 | #define MIN_INPUT 2 /* Minimum number of lines for input window */ | |
39 | ||
40 | extern char *calloc(); | |
41 | int more_flg = 1; | |
42 | ||
43 | /* Structure for holding current displayed menu */ | |
44 | struct menu_screen { | |
45 | WINDOW *ms_screen; /* Window for this menu */ | |
46 | WINDOW *ms_title; /* Title subwindow */ | |
47 | WINDOW *ms_menu; /* Menu subwindow */ | |
48 | WINDOW *ms_input; /* Input subwindow */ | |
49 | int ms_input_y; /* Input subwindow reference coordinate */ | |
50 | } *cur_ms; | |
51 | ||
52 | #define NULLMS ((struct menu_screen *) 0) | |
53 | ||
54 | Menu *top_menu; /* Root for command search */ | |
55 | ||
56 | /* | |
57 | * Start_menu takes a menu as an argument. It initializes curses u.s.w., | |
58 | * and a quit in any submenu should unwind back to here. (it might not, | |
59 | * if user functions which run their own menus don't cooperate.) | |
60 | * Start_menu should only be called once, at the start of the program. | |
61 | */ | |
62 | Start_menu(m) | |
63 | Menu *m; | |
64 | { | |
65 | struct menu_screen *make_ms(); | |
66 | ||
67 | if (initscr() == ERR) { | |
68 | fputs("Can't initialize curses!\n", stderr); | |
69 | Start_no_menu(m); | |
70 | } | |
71 | (void) raw(); /* We parse & print everything ourselves */ | |
72 | (void) noecho(); | |
73 | cur_ms = make_ms(0); /* So we always have some current */ | |
74 | /* menu_screen */ | |
75 | top_menu = m; | |
76 | /* Run the menu */ | |
77 | (void) Do_menu(m, -1, (char **) NULL); | |
78 | Cleanup_menu(); | |
79 | } | |
80 | ||
81 | Cleanup_menu() | |
82 | { | |
83 | if (cur_ms) { | |
84 | (void) wclear(cur_ms->ms_screen); | |
85 | (void) wrefresh(cur_ms->ms_screen); | |
86 | } | |
87 | endwin(); | |
88 | } | |
89 | ||
90 | ||
91 | /* Like Start_menu, except it doesn't print menus and doesn't use curses */ | |
92 | Start_no_menu(m) | |
93 | Menu *m; | |
94 | { | |
95 | cur_ms = NULLMS; | |
96 | top_menu = m; | |
97 | /* Run the menu */ | |
98 | (void) Do_menu(m, -1, (char **) NULL); | |
99 | } | |
100 | ||
101 | /* | |
102 | * Create a new menu screen template with the specified menu length | |
103 | * and return it. | |
104 | */ | |
105 | struct menu_screen * | |
106 | make_ms(length) | |
107 | int length; | |
108 | { | |
109 | struct menu_screen *ms; | |
110 | char *malloc(); | |
111 | ||
112 | if (MAX_TITLE + length + MIN_INPUT > LINES) { | |
113 | fputs("Menu too big!\n", stderr); | |
114 | exit(2); | |
115 | } | |
116 | ||
117 | ms = (struct menu_screen *) malloc(sizeof(struct menu_screen)); | |
118 | ||
119 | ms->ms_screen = newwin(0, 0, 0, 0); | |
120 | ms->ms_title = subwin(ms->ms_screen, MAX_TITLE, 0, 0, 0); | |
121 | ms->ms_menu = subwin(ms->ms_screen, | |
122 | length, 0, MAX_TITLE, 0); | |
123 | ms->ms_input = subwin(ms->ms_screen, 0, 0, | |
124 | ms->ms_input_y = MAX_TITLE + length, | |
125 | 0); | |
126 | ||
127 | scrollok(ms->ms_input, TRUE); | |
128 | (void) wmove(ms->ms_input, 0, 0); | |
129 | (void) wclear(ms->ms_screen); | |
130 | ||
131 | return (ms); | |
132 | } | |
133 | ||
134 | /* | |
135 | * This routine destroys a menu_screen. | |
136 | */ | |
137 | destroy_ms(ms) | |
138 | struct menu_screen *ms; | |
139 | { | |
140 | delwin(ms->ms_title); | |
141 | delwin(ms->ms_menu); | |
142 | delwin(ms->ms_input); | |
143 | delwin(ms->ms_screen); | |
144 | free((char *) ms); | |
145 | } | |
146 | ||
147 | /* | |
148 | * This guy actually puts up the menu | |
149 | * Note: if margc < 0, no 'r' option will be displayed (i.e., on the | |
150 | * top level menu) | |
151 | */ | |
152 | int | |
153 | Do_menu(m, margc, margv) | |
154 | Menu *m; | |
155 | int margc; | |
156 | char *margv[]; | |
157 | { | |
158 | struct menu_screen *my_ms, *old_cur_ms; | |
159 | char argvals[MAX_ARGC][MAX_ARGLEN]; /* This is where args are stored */ | |
160 | char buf[MAX_ARGC * MAX_ARGLEN]; | |
161 | char *argv[MAX_ARGC]; | |
162 | int line; | |
163 | int i; | |
164 | struct menu_line *command, *Find_command(); | |
165 | int argc; | |
166 | int quitflag, is_topmenu = (margc < 0); | |
167 | ||
168 | /* Entry function gets called with old menu_screen still current */ | |
169 | if (m->m_entry != NULLFUNC) | |
170 | if (m->m_entry(m, margc, margv) == DM_QUIT) | |
171 | return DM_NORMAL; | |
172 | ||
173 | /* The following get run only in curses mode */ | |
174 | if (cur_ms != NULLMS) { | |
175 | /* Get a menu_screen */ | |
176 | old_cur_ms = cur_ms; | |
177 | cur_ms = my_ms = make_ms(m->m_length + 1 + (is_topmenu?0:1)); | |
178 | ||
179 | /* Now print the title and the menu */ | |
180 | (void) wclear(my_ms->ms_menu); | |
181 | (void) wmove(my_ms->ms_title, 0, MAX(0, (COLS - | |
182 | strlen(m->m_title)) >> 1)); | |
183 | (void) wstandout(my_ms->ms_title); | |
184 | (void) waddstr(my_ms->ms_title, m->m_title); | |
185 | (void) wstandend(my_ms->ms_title); | |
186 | ||
187 | for (line = 0; line < m->m_length; line++) { | |
188 | (void) wmove(my_ms->ms_menu, line, 0); | |
189 | (void) wprintw(my_ms->ms_menu, "%2d. (%-12s) %s.", line + 1, | |
190 | m->m_lines[line].ml_command, | |
191 | m->m_lines[line].ml_doc); | |
192 | } | |
193 | (void) wmove(my_ms->ms_menu, line++, 0); | |
194 | if (!is_topmenu) { | |
195 | (void) waddstr(my_ms->ms_menu, | |
196 | " r. (return ) Return to previous menu."); | |
197 | (void) wmove(my_ms->ms_menu, line, 0); | |
198 | } | |
199 | (void) waddstr(my_ms->ms_menu, " q. (quit ) Quit."); | |
200 | ||
201 | } | |
202 | ||
203 | for (;;) { | |
204 | /* This will be set by a return val from func or submenu */ | |
205 | quitflag = DM_NORMAL; | |
206 | /* This is here because we may be coming from another menu */ | |
207 | if (cur_ms != NULL) | |
208 | touchwin(my_ms->ms_screen); | |
209 | /* Get a command */ | |
210 | if (!Prompt_input("Command: ", buf, sizeof(buf))) | |
211 | continue; | |
212 | /* Parse it into the argument list */ | |
213 | /* If there's nothing there, try again */ | |
214 | /* Initialize argv */ | |
215 | for (argc = 0; argc < MAX_ARGC; argc++) | |
216 | argv[argc] = argvals[argc]; | |
217 | ||
218 | if ((argc = Parse_words(buf, argv, MAX_ARGLEN)) == 0) | |
219 | continue; | |
220 | if ((line = atoi(argv[0])) > 0 && line <= m->m_length) { | |
221 | command = &m->m_lines[line - 1]; | |
222 | } | |
223 | else if ((!is_topmenu && | |
224 | (!strcmp(argv[0], "r") | |
225 | || !strcmp(argv[0], "return"))) | |
226 | || !strcmp(argv[0], "q") | |
227 | || !strcmp(argv[0], "quit")) { | |
228 | /* here if it's either return or quit */ | |
229 | if (cur_ms != NULLMS) { | |
230 | cur_ms = old_cur_ms; | |
231 | destroy_ms(my_ms); | |
232 | } | |
233 | if (m->m_exit != NULLFUNC) | |
234 | m->m_exit(m); | |
235 | return (*argv[0] == 'r' ? DM_NORMAL : DM_QUIT); | |
236 | /* finally, try to find it using Find_command */ | |
237 | } | |
238 | else if ((command = Find_command(argvals[0])) == | |
239 | (struct menu_line *) 0) { | |
240 | Put_message("Command not recognized"); | |
241 | continue; | |
242 | } | |
243 | /* If we got to here, command is a valid menu_line */ | |
244 | /* Send the offical command name into the argv */ | |
245 | (void) strcpy(argvals[0], command->ml_command); | |
246 | /* Show that we're working on it */ | |
247 | Put_message(command->ml_doc); | |
248 | /* Print args that we've already got */ | |
249 | for (i = 1; i < argc; i++) { | |
250 | if (command->ml_args[i].ma_prompt == NULL) | |
251 | break; | |
252 | (void) sprintf(buf, "%s%s", command->ml_args[i].ma_prompt, | |
253 | argv[i]); | |
254 | Put_message(buf); | |
255 | } | |
256 | /* Get remaining arguments, if any */ | |
257 | for (; argc < command->ml_argc; argc++) { | |
258 | if (!Prompt_input(command->ml_args[argc].ma_prompt, | |
259 | argvals[argc], sizeof(argvals[argc]))) | |
260 | goto punt_command; | |
261 | } | |
262 | if (command->ml_function != NULLFUNC) { | |
263 | /* If it's got a function, call it */ | |
264 | quitflag = command->ml_function(argc, argv); | |
265 | } | |
266 | else if (command->ml_submenu != NULLMENU) { | |
267 | /* Else see if it is a submenu */ | |
268 | quitflag = Do_menu(command->ml_submenu, argc, argv); | |
269 | } | |
270 | else { | |
271 | /* If it's got neither, something is wrong */ | |
272 | Put_message("*INTERNAL ERROR: NO FUNCTION OR MENU FOR LINE*"); | |
273 | } | |
274 | if (quitflag == DM_QUIT) { | |
275 | if (cur_ms != NULLMS) { | |
276 | cur_ms = old_cur_ms; | |
277 | destroy_ms(my_ms); | |
278 | } | |
279 | if (m->m_exit != NULLFUNC) | |
280 | m->m_exit(m); | |
281 | return (DM_QUIT); | |
282 | } | |
283 | punt_command: | |
284 | ; | |
285 | } | |
286 | } | |
287 | ||
288 | /* Prompt the user for input in the input window of cur_ms */ | |
289 | int Prompt_input(prompt, buf, buflen) | |
290 | char *prompt; | |
291 | char *buf; | |
292 | int buflen; | |
293 | { | |
294 | int c; | |
295 | char *p; | |
296 | int y, x, oldx; | |
297 | ||
298 | if (cur_ms != NULLMS) { | |
299 | more_flg = 1; | |
300 | getyx(cur_ms->ms_input, y, x); | |
301 | (void) wmove(cur_ms->ms_input, y, 0); | |
302 | ||
303 | touchwin(cur_ms->ms_screen); | |
304 | refresh_ms(cur_ms); | |
305 | (void) waddstr(cur_ms->ms_input, prompt); | |
306 | getyx(cur_ms->ms_input, y, x); | |
307 | ||
308 | oldx = x; | |
309 | p = buf; | |
310 | while(1) { | |
311 | /* for (p = buf; p - buf < buflen;) { */ | |
312 | (void) wmove(cur_ms->ms_input, y, x); | |
313 | (void) wclrtoeol(cur_ms->ms_input); | |
314 | refresh_ms(cur_ms); | |
315 | c = getchar(); | |
316 | switch (c) { | |
317 | case CTL('C'): | |
318 | return 0; | |
319 | case CTL('Z'): | |
320 | (void) kill(getpid(), SIGTSTP); | |
321 | touchwin(curscr); | |
322 | break; | |
323 | case CTL('L'): | |
324 | (void) wclear(cur_ms->ms_input); | |
325 | (void) waddstr(cur_ms->ms_input, prompt); | |
326 | (void) wrefresh(curscr); | |
327 | getyx(cur_ms->ms_input, y, x); | |
328 | break; | |
329 | case '\n': | |
330 | case '\r': | |
331 | goto end_input; | |
332 | case '\b': | |
333 | case '\177': | |
334 | if (p > buf) { | |
335 | p--; | |
336 | x--; | |
337 | } | |
338 | break; | |
339 | case CTL('U'): | |
340 | case CTL('G'): | |
341 | case CTL('['): | |
342 | x = oldx; | |
343 | p = buf; | |
344 | break; | |
345 | default: | |
346 | if (isprint(c) && (p - buf < buflen)) { | |
347 | (void) waddch(cur_ms->ms_input, c); | |
348 | *p++ = c; | |
349 | x++; | |
350 | } else | |
351 | putchar(CTL('G')); | |
352 | break; | |
353 | } | |
354 | } | |
355 | end_input: | |
356 | (void) waddch(cur_ms->ms_input, '\n'); | |
357 | (void) waddch(cur_ms->ms_input, '\r'); | |
358 | ||
359 | (void) wclrtoeol(cur_ms->ms_input); | |
360 | refresh_ms(cur_ms); | |
361 | *p = '\0'; | |
362 | Start_paging(); | |
363 | return 1; | |
364 | } else { | |
365 | printf("%s", prompt); | |
366 | if (gets(buf) == NULL) | |
367 | return 0; | |
368 | Start_paging(); | |
369 | return 1; | |
370 | } | |
371 | } | |
372 | ||
373 | /* Prompt the user for input in the input window of cur_ms, but don't echo | |
374 | and allow some control characters */ | |
375 | int Password_input(prompt, buf, buflen) | |
376 | char *prompt; | |
377 | char *buf; | |
378 | int buflen; | |
379 | { | |
380 | int c; | |
381 | char *p; | |
382 | int y, x, oldx; | |
383 | ||
384 | if (cur_ms != NULLMS) { | |
385 | more_flg = 1; | |
386 | getyx(cur_ms->ms_input, y, x); | |
387 | (void) wmove(cur_ms->ms_input, y, 0); | |
388 | ||
389 | touchwin(cur_ms->ms_screen); | |
390 | refresh_ms(cur_ms); | |
391 | (void) waddstr(cur_ms->ms_input, prompt); | |
392 | getyx(cur_ms->ms_input, y, x); | |
393 | ||
394 | oldx = x; | |
395 | for (p = buf; p - buf < buflen;) { | |
396 | (void) wmove(cur_ms->ms_input, y, x); | |
397 | (void) wclrtoeol(cur_ms->ms_input); | |
398 | refresh_ms(cur_ms); | |
399 | c = getchar(); | |
400 | switch (c) { | |
401 | case CTL('C'): | |
402 | return 0; | |
403 | case CTL('Z'): | |
404 | (void) kill(getpid(), SIGTSTP); | |
405 | touchwin(curscr); | |
406 | break; | |
407 | case CTL('L'): | |
408 | (void) wclear(cur_ms->ms_input); | |
409 | (void) waddstr(cur_ms->ms_input, prompt); | |
410 | (void) wrefresh(curscr); | |
411 | getyx(cur_ms->ms_input, y, x); | |
412 | break; | |
413 | case '\n': | |
414 | case '\r': | |
415 | (void) waddch(cur_ms->ms_input, '\n'); | |
416 | (void) waddch(cur_ms->ms_input, '\r'); | |
417 | ||
418 | (void) wclrtoeol(cur_ms->ms_input); | |
419 | refresh_ms(cur_ms); | |
420 | *p = '\0'; | |
421 | Start_paging(); | |
422 | return 1; | |
423 | case '\b': | |
424 | case '\177': | |
425 | if (p > buf) { | |
426 | p--; | |
427 | x--; | |
428 | } | |
429 | break; | |
430 | case CTL('U'): | |
431 | x = oldx; | |
432 | p = buf; | |
433 | break; | |
434 | default: | |
435 | *p++ = c; | |
436 | break; | |
437 | } | |
438 | } | |
439 | } | |
440 | else { | |
441 | struct sgttyb ttybuf, nttybuf; | |
442 | printf("%s", prompt); | |
443 | /* turn off echoing */ | |
444 | (void) ioctl(0, TIOCGETP, (char *)&ttybuf); | |
445 | nttybuf = ttybuf; | |
446 | nttybuf.sg_flags &= ~ECHO; | |
447 | (void)ioctl(0, TIOCSETP, (char *)&nttybuf); | |
448 | if (gets(buf) == NULL) { | |
449 | (void) ioctl(0, TIOCSETP, (char *)&ttybuf); | |
450 | putchar('\n'); | |
451 | return 0; | |
452 | } | |
453 | putchar('\n'); | |
454 | (void) ioctl(0, TIOCSETP, (char *)&ttybuf); | |
455 | Start_paging(); | |
456 | return 1; | |
457 | } | |
458 | return 0; | |
459 | } | |
460 | ||
461 | int lines_left; | |
462 | ||
463 | /* Start paging */ | |
464 | /* This routine will cause the most recently put message to be the | |
465 | one at the top of the screen when a ---More--- prompt is displayed */ | |
466 | Start_paging() | |
467 | { | |
468 | if (cur_ms != NULLMS) { | |
469 | lines_left = LINES - cur_ms->ms_input_y - 1; | |
470 | } | |
471 | else { | |
472 | lines_left = 23; | |
473 | } | |
474 | } | |
475 | ||
476 | /* Turn off paging */ | |
477 | Stop_paging() | |
478 | { | |
479 | lines_left = -1; | |
480 | } | |
481 | ||
482 | /* Print a message in the input window of cur_ms. */ | |
483 | Put_message(msg) | |
484 | char *msg; | |
485 | { | |
486 | char *copy, *line, *s; | |
487 | ||
488 | copy = (char *) malloc((u_int)COLS); | |
489 | s = line = msg; | |
490 | while(*s++) { | |
491 | if (s - line >= COLS-1) { | |
492 | (void) strncpy(copy, line, COLS-1); | |
493 | line += COLS-1; | |
494 | } else if (*s == '\n') { | |
495 | *s = '\0'; | |
496 | (void) strcpy(copy, line); | |
497 | line = ++s; | |
498 | } else | |
499 | continue; | |
500 | Put_line(copy); | |
501 | } | |
502 | Put_line(line); | |
503 | free(copy); | |
504 | } | |
505 | ||
506 | /* Will be truncated to COLS characters. */ | |
507 | Put_line(msg) | |
508 | char *msg; | |
509 | { | |
510 | int y, x, i; | |
511 | char *msg1, chr; | |
512 | ||
513 | if (!more_flg) | |
514 | return; | |
515 | ||
516 | if (lines_left >= 0) { | |
517 | if (--lines_left == 0) { | |
518 | /* Give the user a more prompt */ | |
519 | if (cur_ms != NULLMS) { | |
520 | (void) wstandout(cur_ms->ms_input); | |
521 | (void) wprintw(cur_ms->ms_input, "---More---"); | |
522 | (void) wstandend(cur_ms->ms_input); | |
523 | refresh_ms(cur_ms); | |
524 | chr = getchar();/* We do care what it is */ | |
525 | if (chr == 'q' || chr == 'Q') { | |
526 | more_flg = 0; | |
527 | return; | |
528 | } | |
529 | getyx(cur_ms->ms_input, y, x); | |
530 | /* x is a bitbucket; avoid lint problems */ | |
531 | x=x; | |
532 | (void) wmove(cur_ms->ms_input, y, 0); | |
533 | (void) wclrtoeol(cur_ms->ms_input); | |
534 | } | |
535 | else { | |
536 | printf("---More (hit return)---"); | |
537 | (void) getchar(); | |
538 | } | |
539 | Start_paging(); /* Reset lines_left */ | |
540 | } | |
541 | } | |
542 | ||
543 | if (cur_ms != NULLMS) { | |
544 | msg1 = (char *) calloc((u_int)COLS, 1); | |
545 | (void) strncpy(msg1, msg, COLS-1); | |
546 | for (i = strlen(msg1); i < COLS - 1; i++) | |
547 | msg1[i] = ' '; | |
548 | (void) wprintw(cur_ms->ms_input, "%s\n", msg1); | |
549 | /* refresh_ms(cur_ms); */ | |
550 | } | |
551 | else { | |
552 | puts(msg); | |
553 | } | |
554 | } | |
555 | ||
556 | /* Refresh a menu_screen onto the real screen */ | |
557 | refresh_ms(ms) | |
558 | struct menu_screen *ms; | |
559 | { | |
560 | int y, x; | |
561 | ||
562 | getyx(ms->ms_input, y, x); | |
563 | (void) wmove(ms->ms_screen, y + ms->ms_input_y, x); | |
564 | (void) wrefresh(ms->ms_screen); | |
565 | } | |
566 | ||
567 | /* Parse buf into a list of words, which will be placed in strings specified by | |
568 | argv. Space for these strings must have already been allocated. | |
569 | Only the first n characters of each word will be copied */ | |
570 | Parse_words(buf, argv, n) | |
571 | char *buf; | |
572 | char *argv[]; | |
573 | int n; | |
574 | ||
575 | { | |
576 | char *start, *end; /* For sausage machine */ | |
577 | int argc; | |
578 | ||
579 | start = buf; | |
580 | for (argc = 0; argc < MAX_ARGC; argc++) { | |
581 | while (isspace(*start)) | |
582 | start++; /* Kill whitespace */ | |
583 | if (*start == '\0') | |
584 | break; /* Nothing left */ | |
585 | /* Now find the end of the word */ | |
586 | for (end = start; *end != '\0' && !isspace(*end); end++); | |
587 | (void) strncpy(argv[argc], start, MIN(end - start, n)); /* Copy it */ | |
588 | argv[argc][MIN(end - start, n - 1)] = '\0'; /* Terminate */ | |
589 | start = end; | |
590 | } | |
591 | return (argc); | |
592 | } | |
593 | ||
594 | /* This is the internal form of Find_command, which recursively searches | |
595 | for a menu_line with command command in the specified menu */ | |
596 | /* It will search to a maximum depth of d */ | |
597 | struct menu_line * | |
598 | find_command_from(c, m, d) | |
599 | char *c; | |
600 | struct menu *m; | |
601 | int d; | |
602 | { | |
603 | int line; | |
604 | struct menu_line *maybe; | |
605 | ||
606 | if (d < 0) | |
607 | return ((struct menu_line *) 0); /* Too deep! */ | |
608 | for (line = 0; line < m->m_length; line++) { | |
609 | if (!strcmp(c, m->m_lines[line].ml_command)) { | |
610 | return (&m->m_lines[line]); | |
611 | } | |
612 | else if (m->m_lines[line].ml_submenu != NULLMENU | |
613 | && (maybe = | |
614 | find_command_from(c, m->m_lines[line].ml_submenu, d - 1)) | |
615 | != (struct menu_line *) 0) { | |
616 | return (maybe); | |
617 | } | |
618 | } | |
619 | /* If we got to here, nothing works */ | |
620 | return ((struct menu_line *) 0); | |
621 | } | |
622 | ||
623 | /* Find_command searches down the current menu tree */ | |
624 | /* And returns a pointer to a menu_line with the specified command name */ | |
625 | /* It returns (struct menu_line *) 0 if none is found */ | |
626 | struct menu_line * | |
627 | Find_command(command) | |
628 | char *command; | |
629 | { | |
630 | if (top_menu == NULLMENU) { | |
631 | return ((struct menu_line *) 0); | |
632 | } | |
633 | else { | |
634 | return (find_command_from(command, top_menu, MAX_MENU_DEPTH)); | |
635 | } | |
636 | } | |
637 | ||
638 | void | |
639 | sms_com_err_hook(who, code, fmt, args) | |
640 | char *who; | |
641 | int code; | |
642 | char *fmt; | |
643 | va_list args; | |
644 | { | |
645 | char buf[BUFSIZ], *cp; | |
646 | ||
647 | FILE _strbuf; | |
648 | ||
649 | (void) strcpy(buf, who); | |
650 | for (cp = buf; *cp; cp++); | |
651 | *cp++ = ':'; | |
652 | *cp++ = ' '; | |
653 | if (code) { | |
654 | (void) strcpy(cp, error_message(code)); | |
655 | while (*cp) | |
656 | cp++; | |
657 | } | |
658 | _strbuf._flag = _IOWRT + _IOSTRG; | |
659 | _strbuf._ptr = cp; | |
660 | _strbuf._cnt = BUFSIZ - (cp - buf); | |
661 | _doprnt(fmt, args, &_strbuf); | |
662 | (void) putc('\0', &_strbuf); | |
663 | Put_message(buf); | |
664 | } | |
665 | ||
666 | /* | |
667 | * Local Variables: | |
668 | * mode: c | |
669 | * c-indent-level: 4 | |
670 | * c-continued-statement-offset: 4 | |
671 | * c-brace-offset: -4 | |
672 | * c-argdecl-indent: 4 | |
673 | * c-label-offset: -4 | |
674 | * End: | |
675 | */ |