/[LeafOK_CVS]/lbbs/src/menu.c
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Annotation of /lbbs/src/menu.c

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Revision 1.79 - (hide annotations)
Sun Nov 2 08:14:48 2025 UTC (4 months, 2 weeks ago) by sysadm
Branch: MAIN
Changes since 1.78: +1 -1 lines
Content type: text/x-csrc 
Increase MENU_SHMGET_RETRY_LIMIT to 10
1 sysadm 1.1 /***************************************************************************
2 sysadm 1.21 menu.c - description
3     -------------------
4 sysadm 1.30 Copyright : (C) 2004-2025 by Leaflet
5     Email : leaflet@leafok.com
6 sysadm 1.1 ***************************************************************************/
7    
8     /***************************************************************************
9     * *
10     * This program is free software; you can redistribute it and/or modify *
11     * it under the terms of the GNU General Public License as published by *
12 sysadm 1.30 * the Free Software Foundation; either version 3 of the License, or *
13 sysadm 1.1 * (at your option) any later version. *
14     * *
15     ***************************************************************************/
16    
17 sysadm 1.3 #include "bbs.h"
18 sysadm 1.17 #include "bbs_cmd.h"
19 sysadm 1.22 #include "bbs_cmd.h"
20 sysadm 1.67 #include "common.h"
21     #include "io.h"
22     #include "log.h"
23 sysadm 1.1 #include "menu.h"
24 sysadm 1.22 #include "screen.h"
25 sysadm 1.67 #include "user_priv.h"
26     #include <ctype.h>
27     #include <errno.h>
28 sysadm 1.1 #include <stdio.h>
29 sysadm 1.6 #include <stdlib.h>
30 sysadm 1.67 #include <string.h>
31 sysadm 1.40 #include <unistd.h>
32 sysadm 1.67 #include <sys/ipc.h>
33 sysadm 1.40 #include <sys/shm.h>
34 sysadm 1.1
35 sysadm 1.31 #define MENU_SCREEN_PATH_PREFIX "var/MENU_SCR_"
36     #define MENU_CONF_DELIM_WITH_SPACE " ,\t\r\n"
37     #define MENU_CONF_DELIM_WITHOUT_SPACE "\r\n"
38 sysadm 1.25
39 sysadm 1.40 #define MENU_SET_RESERVED_LENGTH (sizeof(int16_t) * 4)
40    
41 sysadm 1.79 #define MENU_SHMGET_RETRY_LIMIT 10
42 sysadm 1.77
43 sysadm 1.69 MENU_SET bbs_menu;
44 sysadm 1.73 MENU_SET top10_menu;
45 sysadm 1.1
46 sysadm 1.21 int load_menu(MENU_SET *p_menu_set, const char *conf_file)
47 sysadm 1.1 {
48 sysadm 1.40 FILE *fin;
49 sysadm 1.31 int fin_line = 0;
50 sysadm 1.23 char buffer[LINE_BUFFER_LEN];
51 sysadm 1.33 char temp[LINE_BUFFER_LEN];
52 sysadm 1.31 char *p = NULL;
53     char *q = NULL;
54 sysadm 1.48 char *r = NULL;
55 sysadm 1.31 char *saveptr = NULL;
56     MENU *p_menu = NULL;
57 sysadm 1.40 MENU_ITEM *p_menu_item = NULL;
58     MENU_SCREEN *p_screen = NULL;
59     MENU_ID menu_id;
60     MENU_ITEM_ID menu_item_id;
61     MENU_SCREEN_ID screen_id;
62     int proj_id;
63     key_t key;
64     size_t size;
65 sysadm 1.77 int retry_cnt;
66 sysadm 1.31
67 sysadm 1.69 // Initialize the data structure
68     memset(p_menu_set, 0, sizeof(*p_menu_set));
69    
70 sysadm 1.40 // Use trie_dict to search menu_id by menu name
71 sysadm 1.39 p_menu_set->p_menu_name_dict = trie_dict_create();
72 sysadm 1.40 if (p_menu_set->p_menu_name_dict == NULL)
73     {
74     log_error("trie_dict_create() error\n");
75     return -3;
76     }
77    
78     // Use trie_dict to search screen_id by menu screen name
79     p_menu_set->p_menu_screen_dict = trie_dict_create();
80     if (p_menu_set->p_menu_screen_dict == NULL)
81     {
82     log_error("trie_dict_create() error\n");
83     return -3;
84     }
85 sysadm 1.21
86     if ((fin = fopen(conf_file, "r")) == NULL)
87     {
88 sysadm 1.68 log_error("Open %s failed\n", conf_file);
89 sysadm 1.31 return -2;
90 sysadm 1.21 }
91    
92 sysadm 1.40 // Allocate shared memory
93     size = MENU_SET_RESERVED_LENGTH +
94     sizeof(MENU) * MAX_MENUS +
95     sizeof(MENU_ITEM) * MAX_MENUITEMS +
96     sizeof(MENU_SCREEN) * MAX_MENUS +
97     MAX_MENU_SCR_BUF_LENGTH * MAX_MENUS;
98 sysadm 1.77
99     proj_id = (int)(time(NULL) % getpid());
100     retry_cnt = 0;
101    
102     do
103 sysadm 1.40 {
104 sysadm 1.77 key = ftok(conf_file, proj_id + retry_cnt);
105     if (key == -1)
106     {
107     log_error("ftok(%s %d) error (%d)\n", conf_file, proj_id, errno);
108     return -2;
109     }
110    
111     p_menu_set->shmid = shmget(key, size, IPC_CREAT | IPC_EXCL | 0600);
112    
113     if (p_menu_set->shmid == -1)
114     {
115     if (errno != EEXIST || retry_cnt + 1 >= MENU_SHMGET_RETRY_LIMIT)
116     {
117     log_error("shmget(conf_file=%s, size=%d) error (%d) %d times\n",
118     conf_file, size, errno, retry_cnt + 1);
119     break;
120     }
121     log_error("shmget(conf_file=%s, proj_id=%d, key=0x%x, size=%d) error (%d), retry ...\n",
122     conf_file, proj_id + retry_cnt, key, size, errno);
123     retry_cnt++;
124     }
125     } while (p_menu_set->shmid == -1);
126    
127 sysadm 1.40 p_menu_set->p_reserved = shmat(p_menu_set->shmid, NULL, 0);
128     if (p_menu_set->p_reserved == (void *)-1)
129     {
130     log_error("shmat() error (%d)\n", errno);
131     return -3;
132     }
133 sysadm 1.77
134 sysadm 1.75 p_menu_set->p_menu_pool = (char *)(p_menu_set->p_reserved) + MENU_SET_RESERVED_LENGTH;
135     p_menu_set->p_menu_item_pool = (char *)(p_menu_set->p_menu_pool) + sizeof(MENU) * MAX_MENUS;
136     p_menu_set->p_menu_screen_pool = (char *)(p_menu_set->p_menu_item_pool) + sizeof(MENU_ITEM) * MAX_MENUITEMS;
137     p_menu_set->p_menu_screen_buf = (char *)(p_menu_set->p_menu_screen_pool) + sizeof(MENU_SCREEN) * MAX_MENUS;
138 sysadm 1.40 p_menu_set->p_menu_screen_buf_free = p_menu_set->p_menu_screen_buf;
139    
140     p_menu_set->menu_count = 0;
141     p_menu_set->menu_item_count = 0;
142     p_menu_set->menu_screen_count = 0;
143     p_menu_set->choose_step = 0;
144     p_menu_set->menu_id_path[0] = 0;
145 sysadm 1.69 p_menu_set->menu_item_pos[0] = 0;
146 sysadm 1.68 p_menu_set->allow_exit = 0;
147 sysadm 1.21
148 sysadm 1.23 while (fgets(buffer, sizeof(buffer), fin))
149 sysadm 1.3 {
150 sysadm 1.31 fin_line++;
151    
152     p = strtok_r(buffer, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
153     if (p == NULL) // Blank line
154 sysadm 1.21 {
155 sysadm 1.31 continue;
156     }
157    
158     if (*p == '#' || *p == '\r' || *p == '\n') // Comment or blank line
159     {
160     continue;
161     }
162    
163     if (*p == '%')
164     {
165     p++;
166    
167     if (strcmp(p, "menu") == 0) // BEGIN of sub-menu
168 sysadm 1.21 {
169 sysadm 1.31 if (p_menu != NULL)
170     {
171 sysadm 1.33 log_error("Incomplete menu definition in menu config line %d\n", fin_line);
172 sysadm 1.31 return -1;
173     }
174 sysadm 1.40
175     if (p_menu_set->menu_count >= MAX_MENUS)
176 sysadm 1.31 {
177 sysadm 1.40 log_error("Menu count (%d) exceed limit (%d)\n", p_menu_set->menu_count, MAX_MENUS);
178 sysadm 1.31 return -3;
179     }
180 sysadm 1.40 menu_id = (MENU_ID)p_menu_set->menu_count;
181     p_menu_set->menu_count++;
182    
183     p_menu = get_menu_by_id(p_menu_set, menu_id);
184 sysadm 1.21
185 sysadm 1.31 p_menu->item_count = 0;
186     p_menu->title.show = 0;
187 sysadm 1.40 p_menu->screen_show = 0;
188 sysadm 1.51 p_menu->page_item_limit = 0;
189 sysadm 1.62 p_menu->use_filter = 0;
190     p_menu->filter_handler = NULL;
191 sysadm 1.31
192     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
193     if (q == NULL)
194     {
195     log_error("Error menu name in menu config line %d\n", fin_line);
196     return -1;
197     }
198     p = q;
199 sysadm 1.48 while (isalnum(*q) || *q == '_' || *q == '-')
200 sysadm 1.31 {
201     q++;
202     }
203     if (*q != '\0')
204 sysadm 1.21 {
205 sysadm 1.31 log_error("Error menu name in menu config line %d\n", fin_line);
206     return -1;
207 sysadm 1.21 }
208    
209 sysadm 1.31 if (q - p > sizeof(p_menu->name) - 1)
210 sysadm 1.21 {
211 sysadm 1.31 log_error("Too longer menu name in menu config line %d\n", fin_line);
212     return -1;
213 sysadm 1.21 }
214 sysadm 1.31 strncpy(p_menu->name, p, sizeof(p_menu->name) - 1);
215     p_menu->name[sizeof(p_menu->name) - 1] = '\0';
216 sysadm 1.40
217     if (trie_dict_set(p_menu_set->p_menu_name_dict, p_menu->name, (int64_t)menu_id) != 1)
218 sysadm 1.39 {
219     log_error("Error set menu dict [%s]\n", p_menu->name);
220     }
221 sysadm 1.21
222 sysadm 1.31 // Check syntax
223     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
224     if (q != NULL)
225     {
226     log_error("Unknown extra content in menu config line %d\n", fin_line);
227     return -1;
228     }
229 sysadm 1.21
230 sysadm 1.31 while (fgets(buffer, sizeof(buffer), fin))
231     {
232     fin_line++;
233 sysadm 1.21
234 sysadm 1.31 p = strtok_r(buffer, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
235     if (p == NULL) // Blank line
236     {
237     continue;
238     }
239 sysadm 1.21
240 sysadm 1.31 if (*p == '#' || *p == '\r' || *p == '\n') // Comment or blank line
241 sysadm 1.21 {
242     continue;
243     }
244 sysadm 1.31
245     if (*p == '%') // END of sub-menu
246 sysadm 1.21 {
247 sysadm 1.31 p_menu = NULL;
248 sysadm 1.21 break;
249     }
250 sysadm 1.31 else if (*p == '!' || *p == '@')
251 sysadm 1.21 {
252 sysadm 1.31 // BEGIN of menu item
253 sysadm 1.40 if (p_menu->item_count >= MAX_ITEMS_PER_MENU)
254     {
255     log_error("Menuitem count per menu (%d) exceed limit (%d)\n", p_menu->item_count, MAX_ITEMS_PER_MENU);
256     return -1;
257     }
258     if (p_menu_set->menu_item_count >= MAX_MENUITEMS)
259 sysadm 1.31 {
260 sysadm 1.40 log_error("Menuitem count (%d) exceed limit (%d)\n", p_menu_set->menu_item_count, MAX_MENUITEMS);
261 sysadm 1.31 return -3;
262     }
263 sysadm 1.40 menu_item_id = (MENU_ITEM_ID)p_menu_set->menu_item_count;
264     p_menu_set->menu_item_count++;
265 sysadm 1.31
266 sysadm 1.40 p_menu->items[p_menu->item_count] = menu_item_id;
267     p_menu->item_count++;
268    
269     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
270    
271     p_menu_item->submenu = (*p == '!' ? 1 : 0);
272 sysadm 1.31
273     // Menu item action
274     p++;
275     if (strcmp(p, "..") == 0) // Return to parent menu
276     {
277     q = p + 2; // strlen("..")
278     }
279     else
280     {
281     q = p;
282 sysadm 1.48 while (isalnum(*q) || *q == '_' || *q == '-')
283 sysadm 1.31 {
284     q++;
285     }
286     if (*q != '\0')
287     {
288     log_error("Error menu item action in menu config line %d\n", fin_line);
289     return -1;
290     }
291     }
292    
293 sysadm 1.40 if (q - p > sizeof(p_menu_item->action) - 1)
294 sysadm 1.31 {
295     log_error("Too longer menu action in menu config line %d\n", fin_line);
296     return -1;
297     }
298 sysadm 1.40 strncpy(p_menu_item->action, p, sizeof(p_menu_item->action) - 1);
299     p_menu_item->action[sizeof(p_menu_item->action) - 1] = '\0';
300 sysadm 1.31
301     // Menu item row
302     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
303     if (q == NULL)
304     {
305     log_error("Error menu item row in menu config line %d\n", fin_line);
306     return -1;
307     }
308     p = q;
309     while (isdigit(*q))
310     {
311     q++;
312     }
313     if (*q != '\0')
314     {
315     log_error("Error menu item row in menu config line %d\n", fin_line);
316     return -1;
317     }
318 sysadm 1.40 p_menu_item->row = (int16_t)atoi(p);
319 sysadm 1.31
320     // Menu item col
321     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
322     if (q == NULL)
323     {
324     log_error("Error menu item col in menu config line %d\n", fin_line);
325     return -1;
326     }
327     p = q;
328     while (isdigit(*q))
329     {
330     q++;
331     }
332     if (*q != '\0')
333     {
334     log_error("Error menu item col in menu config line %d\n", fin_line);
335     return -1;
336     }
337 sysadm 1.40 p_menu_item->col = (int16_t)atoi(p);
338 sysadm 1.31
339     // Menu item priv
340     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
341     if (q == NULL)
342     {
343     log_error("Error menu item priv in menu config line %d\n", fin_line);
344     return -1;
345     }
346     p = q;
347     while (isdigit(*q))
348     {
349     q++;
350     }
351     if (*q != '\0')
352     {
353     log_error("Error menu item priv in menu config line %d\n", fin_line);
354     return -1;
355     }
356 sysadm 1.40 p_menu_item->priv = atoi(p);
357 sysadm 1.31
358     // Menu item level
359     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
360     if (q == NULL)
361     {
362     log_error("Error menu item level in menu config line %d\n", fin_line);
363     return -1;
364     }
365     p = q;
366     while (isdigit(*q))
367     {
368     q++;
369     }
370     if (*q != '\0')
371     {
372     log_error("Error menu item level in menu config line %d\n", fin_line);
373     return -1;
374     }
375 sysadm 1.40 p_menu_item->level = atoi(p);
376 sysadm 1.31
377     // Menu item name
378     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
379     if (q == NULL || *q != '\"')
380     {
381     log_error("Error menu item name in menu config line %d\n", fin_line);
382     return -1;
383     }
384     q++;
385     p = q;
386     while (*q != '\0' && *q != '\"')
387     {
388 sysadm 1.48 if (*q == '\\')
389     {
390     r = q;
391     while (*r != '\0')
392     {
393     *r = *(r + 1);
394     r++;
395     }
396     }
397 sysadm 1.31 q++;
398     }
399     if (*q != '\"' || *(q + 1) != '\0')
400     {
401     log_error("Error menu item name in menu config line %d\n", fin_line);
402     return -1;
403     }
404     *q = '\0';
405    
406 sysadm 1.40 if (q - p > sizeof(p_menu_item->name) - 1)
407 sysadm 1.31 {
408     log_error("Too longer menu name in menu config line %d\n", fin_line);
409     return -1;
410     }
411 sysadm 1.40 strncpy(p_menu_item->name, p, sizeof(p_menu_item->name) - 1);
412     p_menu_item->name[sizeof(p_menu_item->name) - 1] = '\0';
413 sysadm 1.31
414     // Menu item text
415     q = strtok_r(NULL, MENU_CONF_DELIM_WITHOUT_SPACE, &saveptr);
416     if (q == NULL || (q = strchr(q, '\"')) == NULL)
417     {
418 sysadm 1.32 log_error("Error menu item text in menu config line %d\n", fin_line);
419 sysadm 1.31 return -1;
420     }
421     q++;
422     p = q;
423     while (*q != '\0' && *q != '\"')
424     {
425 sysadm 1.48 if (*q == '\\')
426     {
427     r = q;
428     while (*r != '\0')
429     {
430     *r = *(r + 1);
431     r++;
432     }
433     }
434 sysadm 1.31 q++;
435     }
436     if (*q != '\"')
437     {
438     log_error("Error menu item text in menu config line %d\n", fin_line);
439     return -1;
440     }
441     *q = '\0';
442    
443 sysadm 1.40 if (q - p > sizeof(p_menu_item->text) - 1)
444 sysadm 1.31 {
445     log_error("Too longer menu item text in menu config line %d\n", fin_line);
446     return -1;
447     }
448 sysadm 1.40 strncpy(p_menu_item->text, p, sizeof(p_menu_item->text) - 1);
449     p_menu_item->text[sizeof(p_menu_item->text) - 1] = '\0';
450 sysadm 1.31
451     // Check syntax
452     q = strtok_r(q + 1, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
453     if (q != NULL)
454     {
455     log_error("Unknown extra content in menu config line %d\n", fin_line);
456     return -1;
457     }
458     }
459     else if (strcmp(p, "title") == 0)
460     {
461     p_menu->title.show = 1;
462    
463     // Menu title row
464     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
465     if (q == NULL)
466     {
467     log_error("Error menu title row in menu config line %d\n", fin_line);
468     return -1;
469     }
470     p = q;
471     while (isdigit(*q))
472     {
473     q++;
474     }
475     if (*q != '\0')
476     {
477     log_error("Error menu title row in menu config line %d\n", fin_line);
478     return -1;
479     }
480 sysadm 1.40 p_menu->title.row = (int16_t)atoi(p);
481 sysadm 1.31
482     // Menu title col
483     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
484     if (q == NULL)
485     {
486     log_error("Error menu title col in menu config line %d\n", fin_line);
487     return -1;
488     }
489     p = q;
490     while (isdigit(*q))
491     {
492     q++;
493     }
494     if (*q != '\0')
495     {
496     log_error("Error menu title col in menu config line %d\n", fin_line);
497     return -1;
498     }
499 sysadm 1.40 p_menu->title.col = (int16_t)atoi(p);
500 sysadm 1.31
501     // Menu title text
502     q = strtok_r(NULL, MENU_CONF_DELIM_WITHOUT_SPACE, &saveptr);
503     if (q == NULL || (q = strchr(q, '\"')) == NULL)
504     {
505     log_error("Error menu title text in menu config line %d\n", fin_line);
506     return -1;
507     }
508     q++;
509     p = q;
510     while (*q != '\0' && *q != '\"')
511     {
512 sysadm 1.48 if (*q == '\\')
513     {
514     r = q;
515     while (*r != '\0')
516     {
517     *r = *(r + 1);
518     r++;
519     }
520     }
521 sysadm 1.31 q++;
522     }
523     if (*q != '\"')
524     {
525     log_error("Error menu title text in menu config line %d\n", fin_line);
526     return -1;
527     }
528     *q = '\0';
529    
530 sysadm 1.48 if (q - p > sizeof(p_menu->title.text) - 1)
531 sysadm 1.31 {
532     log_error("Too longer menu title text in menu config line %d\n", fin_line);
533     return -1;
534     }
535     strncpy(p_menu->title.text, p, sizeof(p_menu->title.text) - 1);
536     p_menu->title.text[sizeof(p_menu->title.text) - 1] = '\0';
537    
538     // Check syntax
539     q = strtok_r(q + 1, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
540     if (q != NULL)
541     {
542     log_error("Unknown extra content in menu config line %d\n", fin_line);
543     return -1;
544     }
545 sysadm 1.21 }
546 sysadm 1.31 else if (strcmp(p, "screen") == 0)
547 sysadm 1.21 {
548 sysadm 1.40 p_menu->screen_show = 1;
549 sysadm 1.31
550     // Menu screen row
551     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
552     if (q == NULL)
553     {
554     log_error("Error menu screen row in menu config line %d\n", fin_line);
555     return -1;
556     }
557     p = q;
558     while (isdigit(*q))
559     {
560     q++;
561     }
562     if (*q != '\0')
563     {
564     log_error("Error menu screen row in menu config line %d\n", fin_line);
565     return -1;
566     }
567 sysadm 1.40 p_menu->screen_row = (int16_t)atoi(p);
568 sysadm 1.31
569     // Menu screen col
570     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
571     if (q == NULL)
572     {
573     log_error("Error menu screen col in menu config line %d\n", fin_line);
574     return -1;
575     }
576     p = q;
577     while (isdigit(*q))
578     {
579     q++;
580     }
581     if (*q != '\0')
582     {
583     log_error("Error menu screen col in menu config line %d\n", fin_line);
584     return -1;
585     }
586 sysadm 1.40 p_menu->screen_col = (int16_t)atoi(p);
587 sysadm 1.31
588     // Menu screen name
589     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
590     if (q == NULL)
591     {
592     log_error("Error menu screen name in menu config line %d\n", fin_line);
593     return -1;
594     }
595     p = q;
596 sysadm 1.48 while (isalnum(*q) || *q == '_' || *q == '-')
597 sysadm 1.31 {
598     q++;
599     }
600     if (*q != '\0')
601     {
602     log_error("Error menu screen name in menu config line %d\n", fin_line);
603     return -1;
604     }
605 sysadm 1.47 strncpy(p_menu->screen_name, p, sizeof(p_menu->screen_name) - 1);
606     p_menu->screen_name[sizeof(p_menu->screen_name) - 1] = '\0';
607 sysadm 1.31
608     // Check syntax
609     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
610     if (q != NULL)
611     {
612     log_error("Unknown extra content in menu config line %d\n", fin_line);
613     return -1;
614     }
615 sysadm 1.21 }
616 sysadm 1.51 else if (strcmp(p, "page") == 0)
617     {
618     // Menu page row
619     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
620     if (q == NULL)
621     {
622     log_error("Error menu page row in menu config line %d\n", fin_line);
623     return -1;
624     }
625     p = q;
626     while (isdigit(*q))
627     {
628     q++;
629     }
630     if (*q != '\0')
631     {
632     log_error("Error menu page row in menu config line %d\n", fin_line);
633     return -1;
634     }
635     p_menu->page_row = (int16_t)atoi(p);
636    
637     // Menu page col
638     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
639     if (q == NULL)
640     {
641     log_error("Error menu page col in menu config line %d\n", fin_line);
642     return -1;
643     }
644     p = q;
645     while (isdigit(*q))
646     {
647     q++;
648     }
649     if (*q != '\0')
650     {
651     log_error("Error menu page col in menu config line %d\n", fin_line);
652     return -1;
653     }
654     p_menu->page_col = (int16_t)atoi(p);
655    
656     // Menu page item limit
657     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
658     if (q == NULL)
659     {
660     log_error("Error menu page item limit in menu config line %d\n", fin_line);
661     return -1;
662     }
663     p = q;
664     while (isdigit(*q))
665     {
666     q++;
667     }
668     if (*q != '\0')
669     {
670     log_error("Error menu page item limit in menu config line %d\n", fin_line);
671     return -1;
672     }
673     p_menu->page_item_limit = (int16_t)atoi(p);
674    
675     // Check syntax
676     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
677     if (q != NULL)
678     {
679     log_error("Unknown extra content in menu config line %d\n", fin_line);
680     return -1;
681     }
682     }
683 sysadm 1.62 else if (strcmp(p, "use_filter") == 0)
684     {
685     p_menu->use_filter = 1;
686    
687     // Check syntax
688     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
689     if (q != NULL)
690     {
691     log_error("Unknown extra content in menu config line %d\n", fin_line);
692     return -1;
693     }
694     }
695 sysadm 1.31 }
696     }
697     else // BEGIN of menu screen
698     {
699 sysadm 1.40 if (p_menu_set->menu_item_count >= MAX_MENUS)
700     {
701     log_error("Menu screen count (%d) exceed limit (%d)\n", p_menu_set->menu_screen_count, MAX_MENUS);
702     return -3;
703     }
704     screen_id = (MENU_SCREEN_ID)p_menu_set->menu_screen_count;
705     p_menu_set->menu_screen_count++;
706    
707     p_screen = get_menu_screen_by_id(p_menu_set, screen_id);
708    
709 sysadm 1.31 q = p;
710 sysadm 1.48 while (isalnum(*q) || *q == '_' || *q == '-')
711 sysadm 1.31 {
712     q++;
713     }
714     if (*q != '\0')
715     {
716     log_error("Error menu screen name in menu config line %d\n", fin_line);
717     return -1;
718     }
719 sysadm 1.40 strncpy(p_screen->name, p, sizeof(p_screen->name) - 1);
720     p_screen->name[sizeof(p_screen->name) - 1] = '\0';
721 sysadm 1.31
722 sysadm 1.40 if (trie_dict_set(p_menu_set->p_menu_screen_dict, p_screen->name, (int64_t)screen_id) != 1)
723     {
724     log_error("Error set menu screen dict [%s]\n", p_screen->name);
725     }
726 sysadm 1.31
727     // Check syntax
728     q = strtok_r(NULL, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
729     if (q != NULL)
730     {
731     log_error("Unknown extra content in menu config line %d\n", fin_line);
732     return -1;
733     }
734    
735 sysadm 1.40 p_screen->buf_offset = p_menu_set->p_menu_screen_buf_free - p_menu_set->p_menu_screen_buf;
736     p_screen->buf_length = -1;
737    
738     // safety appending boundary
739     q = p_menu_set->p_menu_screen_buf + MAX_MENU_SCR_BUF_LENGTH * MAX_MENUS - 1;
740 sysadm 1.31
741     while (fgets(buffer, sizeof(buffer), fin))
742     {
743     fin_line++;
744    
745 sysadm 1.40 strncpy(temp, buffer, sizeof(temp) - 1); // Duplicate line for strtok_r
746     temp[sizeof(temp) - 1] = '\0';
747 sysadm 1.33 p = strtok_r(temp, MENU_CONF_DELIM_WITH_SPACE, &saveptr);
748 sysadm 1.31 if (p != NULL && *p == '%') // END of menu screen
749 sysadm 1.21 {
750 sysadm 1.40 if (p_menu_set->p_menu_screen_buf_free + 1 > q)
751     {
752     log_error("Menu screen buffer depleted (%p + 1 > %p)\n", p_menu_set->p_menu_screen_buf_free, q);
753     return -3;
754     }
755    
756     *(p_menu_set->p_menu_screen_buf_free) = '\0';
757     p_menu_set->p_menu_screen_buf_free++;
758     p_screen->buf_length = p_menu_set->p_menu_screen_buf_free - p_menu_set->p_menu_screen_buf - p_screen->buf_offset;
759 sysadm 1.31 break;
760 sysadm 1.21 }
761 sysadm 1.31
762 sysadm 1.47 // Clear line
763     if (p_menu_set->p_menu_screen_buf_free + strlen(CTRL_SEQ_CLR_LINE) > q)
764     {
765     log_error("Menu screen buffer depleted (%p + %d > %p)\n", p_menu_set->p_menu_screen_buf_free, q, strlen(CTRL_SEQ_CLR_LINE));
766     return -3;
767     }
768     p_menu_set->p_menu_screen_buf_free = stpcpy(p_menu_set->p_menu_screen_buf_free, CTRL_SEQ_CLR_LINE);
769    
770 sysadm 1.40 p = buffer;
771     while (*p != '\0')
772 sysadm 1.21 {
773 sysadm 1.40 if (p_menu_set->p_menu_screen_buf_free + 2 > q)
774     {
775     log_error("Menu screen buffer depleted (%p + 2 > %p)\n", p_menu_set->p_menu_screen_buf_free, q);
776     return -3;
777     }
778    
779     if (*p == '\n' && p > buffer && *(p - 1) != '\r')
780     {
781     *(p_menu_set->p_menu_screen_buf_free) = '\r';
782     p_menu_set->p_menu_screen_buf_free++;
783     }
784    
785     *(p_menu_set->p_menu_screen_buf_free) = *p;
786     p++;
787     p_menu_set->p_menu_screen_buf_free++;
788 sysadm 1.21 }
789     }
790 sysadm 1.31
791 sysadm 1.40 if (p_screen->buf_length == -1)
792     {
793     log_error("End of menu screen [%s] not found\n", p_screen->name);
794     }
795 sysadm 1.21 }
796 sysadm 1.31 }
797     else // Invalid prefix
798     {
799     log_error("Error in menu config line %d\n", fin_line);
800     return -1;
801 sysadm 1.10 }
802 sysadm 1.3 }
803 sysadm 1.21 fclose(fin);
804 sysadm 1.3
805 sysadm 1.47 for (menu_id = 0; menu_id < p_menu_set->menu_count; menu_id++)
806     {
807     p_menu = get_menu_by_id(p_menu_set, menu_id);
808    
809     if (trie_dict_get(p_menu_set->p_menu_screen_dict, p_menu->screen_name, (int64_t *)(&(p_menu->screen_id))) != 1)
810     {
811     log_error("Undefined menu screen [%s]\n", p);
812     return -1;
813     }
814 sysadm 1.62
815     // Set menu->filter_handler of each menu pointing to filter
816     if (p_menu->use_filter == 1)
817     {
818     if ((p_menu->filter_handler = get_cmd_handler(p_menu->name)) == NULL)
819     {
820     log_error("Undefined menu filter handler [%s]\n", p_menu->name);
821     return -1;
822     }
823     }
824 sysadm 1.47 }
825    
826 sysadm 1.40 for (menu_item_id = 0; menu_item_id < p_menu_set->menu_item_count; menu_item_id++)
827     {
828     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
829 sysadm 1.44
830     // Set menu_item->action_cmd_handler of each menu item pointing to bbs_cmd
831     if (p_menu_item->submenu == 0)
832     {
833     if ((p_menu_item->action_cmd_handler = get_cmd_handler(p_menu_item->action)) == NULL)
834     {
835     log_error("Undefined menu action cmd handler [%s]\n", p_menu_item->action);
836     return -1;
837     }
838     }
839     // Set menu_item->action_menu_id of each menu item pointing to a submenu to the menu_id of the corresponding submenu
840     else if (strcmp(p_menu_item->action, "..") != 0)
841 sysadm 1.40 {
842     if (trie_dict_get(p_menu_set->p_menu_name_dict, p_menu_item->action, (int64_t *)&menu_id) != 1)
843     {
844 sysadm 1.48 log_error("Undefined sub menu id [%s]\n", p_menu_item->action);
845 sysadm 1.40 return -1;
846     }
847     p_menu_item->action_menu_id = menu_id;
848     }
849     }
850    
851     // Save status varaibles into reserved memory area
852     *((int16_t *)p_menu_set->p_reserved) = p_menu_set->menu_count;
853     *(((int16_t *)p_menu_set->p_reserved) + 1) = p_menu_set->menu_item_count;
854     *(((int16_t *)p_menu_set->p_reserved) + 2) = p_menu_set->menu_screen_count;
855 sysadm 1.2
856 sysadm 1.21 return 0;
857 sysadm 1.1 }
858    
859 sysadm 1.61 int display_menu_cursor(MENU_SET *p_menu_set, int show)
860 sysadm 1.3 {
861 sysadm 1.40 MENU_ID menu_id;
862     MENU_ITEM_ID menu_item_id;
863     MENU *p_menu;
864     MENU_ITEM *p_menu_item;
865     int16_t menu_item_pos;
866 sysadm 1.39
867 sysadm 1.40 menu_id = p_menu_set->menu_id_path[p_menu_set->choose_step];
868     p_menu = get_menu_by_id(p_menu_set, menu_id);
869     if (p_menu == NULL)
870     {
871     log_error("get_menu_by_id(%d) return NULL pointer\n", menu_id);
872     return -1;
873     }
874 sysadm 1.5
875 sysadm 1.40 menu_item_pos = p_menu_set->menu_item_pos[p_menu_set->choose_step];
876     menu_item_id = p_menu->items[menu_item_pos];
877     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
878     if (p_menu_item == NULL)
879 sysadm 1.10 {
880 sysadm 1.40 log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
881     return -1;
882 sysadm 1.10 }
883 sysadm 1.5
884 sysadm 1.41 moveto(p_menu_set->menu_item_r_row[menu_item_pos], p_menu_set->menu_item_r_col[menu_item_pos] - 2);
885 sysadm 1.26 outc(show ? '>' : ' ');
886 sysadm 1.40
887     return 0;
888 sysadm 1.1 }
889    
890 sysadm 1.51 static int display_menu_current_page(MENU_SET *p_menu_set)
891 sysadm 1.1 {
892 sysadm 1.40 int16_t row = 0;
893     int16_t col = 0;
894     MENU_ID menu_id;
895     MENU_ITEM_ID menu_item_id;
896     MENU *p_menu;
897     MENU_ITEM *p_menu_item;
898 sysadm 1.51 int16_t menu_item_pos;
899     int16_t page_id = 0;
900 sysadm 1.40 MENU_SCREEN *p_menu_screen;
901 sysadm 1.3
902 sysadm 1.40 menu_id = p_menu_set->menu_id_path[p_menu_set->choose_step];
903     p_menu = get_menu_by_id(p_menu_set, menu_id);
904 sysadm 1.21 if (p_menu == NULL)
905 sysadm 1.26 {
906 sysadm 1.40 log_error("get_menu_by_id(%d) return NULL pointer\n", menu_id);
907 sysadm 1.21 return -1;
908 sysadm 1.26 }
909 sysadm 1.5
910 sysadm 1.51 clrline(p_menu->page_row, p_menu->page_row + p_menu->page_item_limit - 1);
911 sysadm 1.35
912 sysadm 1.21 if (p_menu->title.show)
913 sysadm 1.26 {
914 sysadm 1.48 if (p_menu->title.row == 0 && p_menu->title.col == 0)
915     {
916 sysadm 1.59 show_top(p_menu->title.text, BBS_name, "");
917 sysadm 1.48 }
918     else
919     {
920     moveto(p_menu->title.row, p_menu->title.col);
921     prints("%s", p_menu->title.text);
922     }
923 sysadm 1.26 }
924 sysadm 1.3
925 sysadm 1.40 if (p_menu->screen_show)
926 sysadm 1.10 {
927 sysadm 1.40 p_menu_screen = get_menu_screen_by_id(p_menu_set, p_menu->screen_id);
928     if (p_menu_screen == NULL)
929 sysadm 1.26 {
930 sysadm 1.40 log_error("get_menu_screen_by_id(%d) return NULL pointer\n", p_menu->screen_id);
931     return -1;
932 sysadm 1.26 }
933 sysadm 1.40
934 sysadm 1.48 row = p_menu->screen_row;
935     col = p_menu->screen_col;
936    
937     moveto(row, col);
938 sysadm 1.40 prints("%s", p_menu_set->p_menu_screen_buf + p_menu_screen->buf_offset);
939 sysadm 1.10 }
940 sysadm 1.21
941 sysadm 1.51 menu_item_pos = p_menu_set->menu_item_pos[p_menu_set->choose_step];
942     page_id = p_menu_set->menu_item_page_id[menu_item_pos];
943    
944     while (menu_item_pos >= 0)
945     {
946     if (p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
947     {
948     menu_item_pos++;
949     break;
950     }
951    
952     if (menu_item_pos == 0)
953     {
954     break;
955     }
956    
957     menu_item_pos--;
958     }
959    
960     for (; menu_item_pos < p_menu->item_count; menu_item_pos++)
961     {
962     if (p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
963     {
964     break;
965     }
966    
967     menu_item_id = p_menu->items[menu_item_pos];
968     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
969    
970     if (p_menu_set->menu_item_display[menu_item_pos] == 0)
971     {
972     continue;
973     }
974    
975     row = p_menu_set->menu_item_r_row[menu_item_pos];
976     col = p_menu_set->menu_item_r_col[menu_item_pos];
977    
978     moveto(row, col);
979     prints("%s", p_menu_item->text);
980     }
981    
982     return 0;
983     }
984    
985     int display_menu(MENU_SET *p_menu_set)
986     {
987     int16_t row = 0;
988     int16_t col = 0;
989     int menu_selectable = 0;
990     MENU_ID menu_id;
991     MENU_ITEM_ID menu_item_id;
992     MENU *p_menu;
993     MENU_ITEM *p_menu_item;
994     int16_t menu_item_pos;
995     int16_t page_id = 0;
996     int page_item_count = 0;
997    
998     menu_id = p_menu_set->menu_id_path[p_menu_set->choose_step];
999     p_menu = get_menu_by_id(p_menu_set, menu_id);
1000     if (p_menu == NULL)
1001     {
1002     log_error("get_menu_by_id(%d) return NULL pointer\n", menu_id);
1003 sysadm 1.53 if (p_menu_set->choose_step > 0)
1004     {
1005     p_menu_set->choose_step--;
1006     return REDRAW;
1007     }
1008 sysadm 1.68 return EXITMENU;
1009 sysadm 1.51 }
1010    
1011 sysadm 1.75 if (p_menu->item_count <= 0) // empty menu
1012 sysadm 1.70 {
1013     moveto(p_menu->screen_row, p_menu->screen_col);
1014     clrtoeol();
1015 sysadm 1.71 prints("没有可选项");
1016 sysadm 1.70 press_any_key();
1017     return -1;
1018     }
1019    
1020 sysadm 1.51 menu_item_pos = p_menu_set->menu_item_pos[p_menu_set->choose_step];
1021     menu_item_id = p_menu->items[menu_item_pos];
1022     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1023     if (p_menu_item == NULL)
1024     {
1025     log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
1026 sysadm 1.68 return EXITMENU;
1027 sysadm 1.51 }
1028    
1029     if (menu_item_pos > 0 &&
1030 sysadm 1.62 !(p_menu->use_filter ? (p_menu->filter_handler((void *)p_menu_item) == 0)
1031     : (checkpriv(&BBS_priv, 0, p_menu_item->priv) == 0 ||
1032     checklevel2(&BBS_priv, p_menu_item->level) == 0)))
1033 sysadm 1.51 {
1034     menu_selectable = 1;
1035     }
1036    
1037 sysadm 1.41 for (menu_item_pos = 0; menu_item_pos < p_menu->item_count; menu_item_pos++)
1038 sysadm 1.26 {
1039 sysadm 1.41 menu_item_id = p_menu->items[menu_item_pos];
1040 sysadm 1.40 p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1041    
1042     if (p_menu_item->row != 0)
1043 sysadm 1.26 {
1044 sysadm 1.40 row = p_menu_item->row;
1045 sysadm 1.26 }
1046 sysadm 1.40 if (p_menu_item->col != 0)
1047 sysadm 1.26 {
1048 sysadm 1.40 col = p_menu_item->col;
1049 sysadm 1.26 }
1050 sysadm 1.21
1051 sysadm 1.51 p_menu_set->menu_item_page_id[menu_item_pos] = page_id;
1052    
1053 sysadm 1.62 if (p_menu->use_filter ? (p_menu->filter_handler((void *)p_menu_item) == 0)
1054     : (checkpriv(&BBS_priv, 0, p_menu_item->priv) == 0 ||
1055     checklevel2(&BBS_priv, p_menu_item->level) == 0))
1056 sysadm 1.21 {
1057 sysadm 1.41 p_menu_set->menu_item_display[menu_item_pos] = 0;
1058     p_menu_set->menu_item_r_row[menu_item_pos] = 0;
1059     p_menu_set->menu_item_r_col[menu_item_pos] = 0;
1060 sysadm 1.21 }
1061     else
1062     {
1063 sysadm 1.41 p_menu_set->menu_item_display[menu_item_pos] = 1;
1064 sysadm 1.10
1065 sysadm 1.26 if (!menu_selectable)
1066     {
1067 sysadm 1.41 p_menu_set->menu_item_pos[p_menu_set->choose_step] = menu_item_pos;
1068 sysadm 1.26 menu_selectable = 1;
1069     }
1070 sysadm 1.3
1071 sysadm 1.41 p_menu_set->menu_item_r_row[menu_item_pos] = row;
1072     p_menu_set->menu_item_r_col[menu_item_pos] = col;
1073 sysadm 1.26
1074 sysadm 1.51 row++;
1075 sysadm 1.26
1076 sysadm 1.51 page_item_count++;
1077     if (p_menu->page_item_limit > 0 && page_item_count >= p_menu->page_item_limit)
1078     {
1079     page_id++;
1080     page_item_count = 0;
1081     row = p_menu->page_row;
1082     col = p_menu->page_col;
1083     }
1084 sysadm 1.21 }
1085 sysadm 1.10 }
1086    
1087 sysadm 1.21 if (!menu_selectable)
1088 sysadm 1.26 {
1089 sysadm 1.63 moveto(p_menu->screen_row, p_menu->screen_col);
1090 sysadm 1.66 clrtoeol();
1091 sysadm 1.71 prints("没有可选项");
1092 sysadm 1.63 press_any_key();
1093 sysadm 1.21 return -1;
1094 sysadm 1.26 }
1095 sysadm 1.3
1096 sysadm 1.53 if (display_menu_current_page(p_menu_set) != 0)
1097     {
1098     return -1;
1099     }
1100 sysadm 1.51
1101 sysadm 1.40 display_menu_cursor(p_menu_set, 1);
1102 sysadm 1.1
1103 sysadm 1.21 return 0;
1104 sysadm 1.1 }
1105    
1106 sysadm 1.40 int menu_control(MENU_SET *p_menu_set, int key)
1107 sysadm 1.12 {
1108 sysadm 1.40 MENU_ID menu_id;
1109     MENU_ITEM_ID menu_item_id;
1110 sysadm 1.21 MENU *p_menu;
1111 sysadm 1.40 MENU_ITEM *p_menu_item;
1112     int16_t menu_item_pos;
1113 sysadm 1.51 int16_t page_id;
1114     int require_page_change = 0;
1115 sysadm 1.12
1116 sysadm 1.40 if (p_menu_set->menu_count == 0)
1117     {
1118 sysadm 1.53 log_error("Empty menu set\n");
1119     return EXITBBS;
1120 sysadm 1.40 }
1121 sysadm 1.12
1122 sysadm 1.40 menu_id = p_menu_set->menu_id_path[p_menu_set->choose_step];
1123     p_menu = get_menu_by_id(p_menu_set, menu_id);
1124     if (p_menu == NULL)
1125     {
1126     log_error("get_menu_by_id(%d) return NULL pointer\n", menu_id);
1127 sysadm 1.53 if (p_menu_set->choose_step > 0)
1128     {
1129     p_menu_set->choose_step--;
1130     return REDRAW;
1131     }
1132     return EXITBBS;
1133 sysadm 1.40 }
1134 sysadm 1.12
1135 sysadm 1.40 if (p_menu->item_count == 0)
1136 sysadm 1.26 {
1137 sysadm 1.68 #ifdef _DEBUG
1138 sysadm 1.53 log_error("Empty menu (%s)\n", p_menu->name);
1139 sysadm 1.68 #endif
1140 sysadm 1.53 if (p_menu_set->choose_step > 0)
1141     {
1142     p_menu_set->choose_step--;
1143     return REDRAW;
1144     }
1145     return EXITBBS;
1146 sysadm 1.26 }
1147 sysadm 1.3
1148 sysadm 1.40 menu_item_pos = p_menu_set->menu_item_pos[p_menu_set->choose_step];
1149 sysadm 1.51 page_id = p_menu_set->menu_item_page_id[menu_item_pos];
1150    
1151 sysadm 1.40 menu_item_id = p_menu->items[menu_item_pos];
1152     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1153     if (p_menu_item == NULL)
1154     {
1155     log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
1156 sysadm 1.53 p_menu_set->menu_item_pos[p_menu_set->choose_step] = 0;
1157     return REDRAW;
1158 sysadm 1.40 }
1159 sysadm 1.3
1160 sysadm 1.21 switch (key)
1161 sysadm 1.10 {
1162 sysadm 1.21 case CR:
1163     case KEY_RIGHT:
1164 sysadm 1.40 if (p_menu_item->submenu)
1165 sysadm 1.21 {
1166 sysadm 1.40 if (strcmp(p_menu_item->action, "..") == 0)
1167 sysadm 1.26 {
1168 sysadm 1.21 return menu_control(p_menu_set, KEY_LEFT);
1169 sysadm 1.26 }
1170 sysadm 1.40 p_menu_set->choose_step++;
1171     p_menu_set->menu_id_path[p_menu_set->choose_step] = p_menu_item->action_menu_id;
1172     p_menu_set->menu_item_pos[p_menu_set->choose_step] = 0;
1173 sysadm 1.26
1174 sysadm 1.40 if (display_menu(p_menu_set) != 0)
1175 sysadm 1.26 {
1176 sysadm 1.21 return menu_control(p_menu_set, KEY_LEFT);
1177 sysadm 1.26 }
1178 sysadm 1.21 }
1179     else
1180     {
1181 sysadm 1.44 return ((*(p_menu_item->action_cmd_handler))((void *)(p_menu_item->name)));
1182 sysadm 1.21 }
1183 sysadm 1.38 break;
1184 sysadm 1.60 case KEY_ESC:
1185 sysadm 1.21 case KEY_LEFT:
1186 sysadm 1.40 if (p_menu_set->choose_step > 0)
1187 sysadm 1.21 {
1188 sysadm 1.40 p_menu_set->choose_step--;
1189 sysadm 1.72 return REDRAW;
1190 sysadm 1.21 }
1191     else
1192     {
1193 sysadm 1.68 if (p_menu_set->allow_exit)
1194     {
1195     return EXITMENU;
1196     }
1197    
1198 sysadm 1.40 display_menu_cursor(p_menu_set, 0);
1199     menu_item_pos = p_menu->item_count - 1;
1200     while (menu_item_pos >= 0)
1201 sysadm 1.26 {
1202 sysadm 1.40 menu_item_id = p_menu->items[menu_item_pos];
1203     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1204     if (p_menu_item == NULL)
1205     {
1206     log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
1207     return -1;
1208     }
1209    
1210 sysadm 1.41 if (!p_menu_set->menu_item_display[menu_item_pos] || p_menu_item->priv != 0 || p_menu_item->level != 0)
1211 sysadm 1.40 {
1212     menu_item_pos--;
1213     }
1214     else
1215     {
1216     break;
1217     }
1218 sysadm 1.26 }
1219 sysadm 1.40 p_menu_set->menu_item_pos[p_menu_set->choose_step] = menu_item_pos;
1220     display_menu_cursor(p_menu_set, 1);
1221 sysadm 1.21 }
1222 sysadm 1.38 break;
1223 sysadm 1.51 case KEY_PGUP:
1224     require_page_change = 1;
1225 sysadm 1.21 case KEY_UP:
1226 sysadm 1.40 display_menu_cursor(p_menu_set, 0);
1227 sysadm 1.21 do
1228     {
1229 sysadm 1.40 menu_item_pos--;
1230     if (menu_item_pos < 0)
1231     {
1232     menu_item_pos = p_menu->item_count - 1;
1233 sysadm 1.51 require_page_change = 0;
1234 sysadm 1.40 }
1235     menu_item_id = p_menu->items[menu_item_pos];
1236     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1237     if (p_menu_item == NULL)
1238 sysadm 1.26 {
1239 sysadm 1.40 log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
1240     return -1;
1241 sysadm 1.26 }
1242 sysadm 1.51 if (require_page_change && p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
1243     {
1244     require_page_change = 0;
1245     }
1246     } while (require_page_change || !p_menu_set->menu_item_display[menu_item_pos]);
1247 sysadm 1.40 p_menu_set->menu_item_pos[p_menu_set->choose_step] = menu_item_pos;
1248 sysadm 1.51 if (p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
1249     {
1250     display_menu_current_page(p_menu_set);
1251     }
1252 sysadm 1.40 display_menu_cursor(p_menu_set, 1);
1253 sysadm 1.21 break;
1254 sysadm 1.51 case KEY_PGDN:
1255     require_page_change = 1;
1256 sysadm 1.21 case KEY_DOWN:
1257 sysadm 1.40 display_menu_cursor(p_menu_set, 0);
1258 sysadm 1.21 do
1259     {
1260 sysadm 1.40 menu_item_pos++;
1261     if (menu_item_pos >= p_menu->item_count)
1262     {
1263     menu_item_pos = 0;
1264 sysadm 1.51 require_page_change = 0;
1265 sysadm 1.40 }
1266     menu_item_id = p_menu->items[menu_item_pos];
1267     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1268     if (p_menu_item == NULL)
1269 sysadm 1.26 {
1270 sysadm 1.40 log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
1271     return -1;
1272 sysadm 1.26 }
1273 sysadm 1.51 if (require_page_change && p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
1274     {
1275     require_page_change = 0;
1276     }
1277     } while (require_page_change || !p_menu_set->menu_item_display[menu_item_pos]);
1278 sysadm 1.40 p_menu_set->menu_item_pos[p_menu_set->choose_step] = menu_item_pos;
1279 sysadm 1.51 if (p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
1280     {
1281     display_menu_current_page(p_menu_set);
1282     }
1283 sysadm 1.40 display_menu_cursor(p_menu_set, 1);
1284 sysadm 1.21 break;
1285 sysadm 1.43 case KEY_HOME:
1286 sysadm 1.42 display_menu_cursor(p_menu_set, 0);
1287     menu_item_pos = 0;
1288     while (menu_item_pos < p_menu->item_count - 1)
1289     {
1290     menu_item_id = p_menu->items[menu_item_pos];
1291     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1292     if (p_menu_item == NULL)
1293     {
1294     log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
1295     return -1;
1296     }
1297    
1298     if (p_menu_set->menu_item_display[menu_item_pos])
1299     {
1300     break;
1301     }
1302    
1303     menu_item_pos++;
1304     }
1305     p_menu_set->menu_item_pos[p_menu_set->choose_step] = menu_item_pos;
1306 sysadm 1.51 if (p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
1307     {
1308     display_menu_current_page(p_menu_set);
1309     }
1310 sysadm 1.42 display_menu_cursor(p_menu_set, 1);
1311     break;
1312 sysadm 1.43 case KEY_END:
1313 sysadm 1.42 display_menu_cursor(p_menu_set, 0);
1314     menu_item_pos = p_menu->item_count - 1;
1315     while (menu_item_pos > 0)
1316     {
1317     menu_item_id = p_menu->items[menu_item_pos];
1318     p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1319     if (p_menu_item == NULL)
1320     {
1321     log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
1322     return -1;
1323     }
1324    
1325     if (p_menu_set->menu_item_display[menu_item_pos])
1326     {
1327     break;
1328     }
1329    
1330     menu_item_pos--;
1331     }
1332     p_menu_set->menu_item_pos[p_menu_set->choose_step] = menu_item_pos;
1333 sysadm 1.51 if (p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
1334     {
1335     display_menu_current_page(p_menu_set);
1336     }
1337 sysadm 1.42 display_menu_cursor(p_menu_set, 1);
1338     break;
1339 sysadm 1.21 default:
1340 sysadm 1.31 if (isalnum(key))
1341 sysadm 1.21 {
1342 sysadm 1.41 for (menu_item_pos = 0; menu_item_pos < p_menu->item_count; menu_item_pos++)
1343 sysadm 1.21 {
1344 sysadm 1.41 menu_item_id = p_menu->items[menu_item_pos];
1345 sysadm 1.40 p_menu_item = get_menu_item_by_id(p_menu_set, menu_item_id);
1346     if (p_menu_item == NULL)
1347     {
1348     log_error("get_menu_item_by_id(%d) return NULL pointer\n", menu_item_id);
1349     return -1;
1350     }
1351    
1352 sysadm 1.41 if (toupper(key) == toupper(p_menu_item->name[0]) && p_menu_set->menu_item_display[menu_item_pos])
1353 sysadm 1.21 {
1354 sysadm 1.40 display_menu_cursor(p_menu_set, 0);
1355 sysadm 1.41 p_menu_set->menu_item_pos[p_menu_set->choose_step] = menu_item_pos;
1356 sysadm 1.51 if (p_menu_set->menu_item_page_id[menu_item_pos] != page_id)
1357     {
1358     display_menu_current_page(p_menu_set);
1359     }
1360 sysadm 1.40 display_menu_cursor(p_menu_set, 1);
1361 sysadm 1.51 break;
1362 sysadm 1.21 }
1363     }
1364 sysadm 1.16 }
1365 sysadm 1.38 break;
1366 sysadm 1.3 }
1367 sysadm 1.1
1368 sysadm 1.48 return NOREDRAW;
1369 sysadm 1.1 }
1370 sysadm 1.15
1371 sysadm 1.40 int unload_menu(MENU_SET *p_menu_set)
1372 sysadm 1.15 {
1373 sysadm 1.57 int shmid;
1374    
1375 sysadm 1.60 if (p_menu_set == NULL)
1376     {
1377     return -1;
1378     }
1379    
1380 sysadm 1.39 if (p_menu_set->p_menu_name_dict != NULL)
1381     {
1382     trie_dict_destroy(p_menu_set->p_menu_name_dict);
1383 sysadm 1.46 p_menu_set->p_menu_name_dict = NULL;
1384 sysadm 1.39 }
1385    
1386 sysadm 1.40 if (p_menu_set->p_menu_screen_dict != NULL)
1387     {
1388     trie_dict_destroy(p_menu_set->p_menu_screen_dict);
1389 sysadm 1.46 p_menu_set->p_menu_screen_dict = NULL;
1390 sysadm 1.40 }
1391    
1392 sysadm 1.57 shmid = p_menu_set->shmid;
1393    
1394 sysadm 1.56 detach_menu_shm(p_menu_set);
1395 sysadm 1.40
1396 sysadm 1.57 if (shmctl(shmid, IPC_RMID, NULL) == -1)
1397 sysadm 1.40 {
1398 sysadm 1.57 log_error("shmctl(shmid=%d, IPC_RMID) error (%d)\n", shmid, errno);
1399 sysadm 1.40 return -1;
1400     }
1401    
1402     return 0;
1403     }
1404    
1405 sysadm 1.68 int get_menu_shm_readonly(MENU_SET *p_menu_set)
1406     {
1407     void *p_shm;
1408    
1409     p_shm = shmat(p_menu_set->shmid, NULL, SHM_RDONLY);
1410     if (p_shm == (void *)-1)
1411     {
1412     log_error("shmat(menu_shm shmid = %d) error (%d)\n", p_menu_set->shmid, errno);
1413     return -1;
1414     }
1415    
1416     p_menu_set->p_reserved = p_shm;
1417 sysadm 1.75 p_menu_set->p_menu_pool = (char *)(p_menu_set->p_reserved) + MENU_SET_RESERVED_LENGTH;
1418     p_menu_set->p_menu_item_pool = (char *)(p_menu_set->p_menu_pool) + sizeof(MENU) * MAX_MENUS;
1419     p_menu_set->p_menu_screen_pool = (char *)(p_menu_set->p_menu_item_pool) + sizeof(MENU_ITEM) * MAX_MENUITEMS;
1420     p_menu_set->p_menu_screen_buf = (char *)(p_menu_set->p_menu_screen_pool) + sizeof(MENU_SCREEN) * MAX_MENUS;
1421 sysadm 1.68 p_menu_set->p_menu_screen_buf_free = p_menu_set->p_menu_screen_buf;
1422    
1423 sysadm 1.69 p_menu_set->choose_step = 0;
1424     p_menu_set->menu_id_path[0] = 0;
1425     p_menu_set->menu_item_pos[0] = 0;
1426    
1427 sysadm 1.68 return 0;
1428     }
1429    
1430 sysadm 1.56 int set_menu_shm_readonly(MENU_SET *p_menu_set)
1431 sysadm 1.40 {
1432 sysadm 1.54 void *p_shm;
1433    
1434 sysadm 1.55 // Remap shared memory in read-only mode
1435     p_shm = shmat(p_menu_set->shmid, p_menu_set->p_reserved, SHM_RDONLY | SHM_REMAP);
1436 sysadm 1.54 if (p_shm == (void *)-1)
1437 sysadm 1.41 {
1438 sysadm 1.57 log_error("shmat(menu_shm shmid = %d) error (%d)\n", p_menu_set->shmid, errno);
1439 sysadm 1.54 return -1;
1440     }
1441 sysadm 1.62
1442 sysadm 1.54 p_menu_set->p_reserved = p_shm;
1443 sysadm 1.41
1444 sysadm 1.40 return 0;
1445 sysadm 1.15 }
1446 sysadm 1.18
1447 sysadm 1.56 int detach_menu_shm(MENU_SET *p_menu_set)
1448 sysadm 1.18 {
1449 sysadm 1.40 p_menu_set->menu_count = 0;
1450     p_menu_set->menu_item_count = 0;
1451     p_menu_set->menu_screen_count = 0;
1452     p_menu_set->choose_step = 0;
1453    
1454     p_menu_set->p_menu_pool = NULL;
1455     p_menu_set->p_menu_item_pool = NULL;
1456     p_menu_set->p_menu_screen_pool = NULL;
1457     p_menu_set->p_menu_screen_buf = NULL;
1458     p_menu_set->p_menu_screen_buf_free = NULL;
1459 sysadm 1.21
1460 sysadm 1.56 p_menu_set->p_menu_name_dict = NULL;
1461     p_menu_set->p_menu_screen_dict = NULL;
1462    
1463 sysadm 1.41 if (p_menu_set->p_reserved != NULL && shmdt(p_menu_set->p_reserved) == -1)
1464 sysadm 1.40 {
1465     log_error("shmdt() error (%d)\n", errno);
1466     return -1;
1467     }
1468 sysadm 1.56
1469 sysadm 1.40 p_menu_set->p_reserved = NULL;
1470 sysadm 1.18
1471 sysadm 1.40 return 0;
1472 sysadm 1.18 }
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