lbbs/src/main.c

/***************************************************************************
                                                  main.c  -  description
                                                         -------------------
        Copyright            : (C) 2004-2025 by Leaflet
        Email                : leaflet@leafok.com
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 3 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "bbs.h"
#include "common.h"
#include "file_loader.h"
#include "init.h"
#include "io.h"
#include "log.h"
#include "menu.h"
#include "net_server.h"
#include "section_list_loader.h"
#include "user_list.h"
#include <errno.h>
#include <libgen.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/types.h>

static void app_help(void)
{
        fprintf(stderr, "Usage: bbsd [-fhv] [...]\n\n"
                                        "-f\t--foreground\t\tForce program run in foreground\n"
                                        "-h\t--help\t\t\tDisplay this help message\n"
                                        "-v\t--version\t\tDisplay version information\n"
                                        "\t--display-log\t\tDisplay standard log information\n"
                                        "\t--display-error-log\tDisplay error log information\n"
                                        "\n    If meet any bug, please report to <leaflet@leafok.com>\n\n");
}

static void arg_error(void)
{
        fprintf(stderr, "Invalid arguments\n");
        app_help();
}

int main(int argc, char *argv[])
{
        char file_path_temp[FILE_PATH_LEN];
        int daemon = 1;
        int std_log_redir = 0;
        int error_log_redir = 0;
        FILE *fp;
        int ret;
        int last_aid;
        struct sigaction act = {0};

        // Parse args
        for (int i = 1; i < argc; i++)
        {
                switch (argv[i][0])
                {
                case '-':
                        if (argv[i][1] != '-')
                        {
                                for (int j = 1; j < strlen(argv[i]); j++)
                                {
                                        switch (argv[i][j])
                                        {
                                        case 'f':
                                                daemon = 0;
                                                break;
                                        case 'h':
                                                app_help();
                                                return 0;
                                        case 'v':
                                                puts(APP_INFO);
                                                return 0;
                                        default:
                                                arg_error();
                                                return 1;
                                        }
                                }
                        }
                        else
                        {
                                if (strcmp(argv[i] + 2, "foreground") == 0)
                                {
                                        daemon = 0;
                                        break;
                                }
                                if (strcmp(argv[i] + 2, "help") == 0)
                                {
                                        app_help();
                                        return 0;
                                }
                                if (strcmp(argv[i] + 2, "version") == 0)
                                {
                                        puts(APP_INFO);
                                        return 0;
                                }
                                if (strcmp(argv[i] + 2, "display-log") == 0)
                                {
                                        std_log_redir = 1;
                                }
                                if (strcmp(argv[i] + 2, "display-error-log") == 0)
                                {
                                        error_log_redir = 1;
                                }
                        }
                        break;
                }
        }

        // Initialize daemon
        if (daemon)
        {
                init_daemon();
        }

        // Change current dir
        strncpy(file_path_temp, argv[0], sizeof(file_path_temp) - 1);
        file_path_temp[sizeof(file_path_temp) - 1] = '\0';

        if (chdir(dirname(file_path_temp)) < 0)
        {
                fprintf(stderr, "chdir(%s) error: %d\n", dirname(file_path_temp), errno);
                return -1;
        }
        if (chdir("..") < 0)
        {
                fprintf(stderr, "chdir(..) error: %d\n", errno);
                return -1;
        }

        // Initialize log
        if (log_begin(LOG_FILE_INFO, LOG_FILE_ERROR) < 0)
        {
                return -1;
        }

        if ((!daemon) && std_log_redir)
        {
                log_common_redir(STDERR_FILENO);
        }
        if ((!daemon) && error_log_redir)
        {
                log_error_redir(STDERR_FILENO);
        }

        log_common("Starting %s\n", APP_INFO);

        // Load configuration
        if (load_conf(CONF_BBSD) < 0)
        {
                return -2;
        }

        // Check article cache dir
        ret = mkdir(VAR_ARTICLE_CACHE_DIR, 0750);
        if (ret == -1 && errno != EEXIST)
        {
                log_error("mkdir(%s) error (%d)\n", VAR_ARTICLE_CACHE_DIR, errno);
                goto cleanup;
        }

        // Initialize data pools
        if ((fp = fopen(VAR_ARTICLE_BLOCK_SHM, "w")) == NULL)
        {
                log_error("fopen(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
                goto cleanup;
        }
        fclose(fp);
        if ((fp = fopen(VAR_SECTION_LIST_SHM, "w")) == NULL)
        {
                log_error("fopen(%s) error\n", VAR_SECTION_LIST_SHM);
                goto cleanup;
        }
        fclose(fp);
        if ((fp = fopen(VAR_TRIE_DICT_SHM, "w")) == NULL)
        {
                log_error("fopen(%s) error\n", VAR_TRIE_DICT_SHM);
                goto cleanup;
        }
        fclose(fp);
        if ((fp = fopen(VAR_USER_LIST_SHM, "w")) == NULL)
        {
                log_error("fopen(%s) error\n", VAR_USER_LIST_SHM);
                goto cleanup;
        }
        fclose(fp);

        if (trie_dict_init(VAR_TRIE_DICT_SHM, TRIE_NODE_PER_POOL) < 0)
        {
                printf("trie_dict_init failed\n");
                goto cleanup;
        }
        if (article_block_init(VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK) < 0)
        {
                log_error("article_block_init(%s, %d) error\n", VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK);
                goto cleanup;
        }
        if (section_list_init(VAR_SECTION_LIST_SHM) < 0)
        {
                log_error("section_list_pool_init(%s) error\n", VAR_SECTION_LIST_SHM);
                goto cleanup;
        }

        // Load BBS cmd
        if (load_cmd() < 0)
        {
                goto cleanup;
        }

        // Load menus
        if (load_menu(&bbs_menu, CONF_MENU) < 0)
        {
                log_error("load_menu(%s) error\n", CONF_MENU);
                goto cleanup;
        }
        if (load_menu(&top10_menu, CONF_TOP10_MENU) < 0)
        {
                log_error("load_menu(%s) error\n", CONF_TOP10_MENU);
                goto cleanup;
        }
        top10_menu.allow_exit = 1;

        // Load data files
        if (file_loader_init() < 0)
        {
                log_error("file_loader_init() error\n");
                goto cleanup;
        }
        for (int i = 0; i < data_files_load_startup_count; i++)
        {
                if (load_file(data_files_load_startup[i]) < 0)
                {
                        log_error("load_file_mmap(%s) error\n", data_files_load_startup[i]);
                }
        }

        // Load user_list and online_user_list
        if (user_list_pool_init() < 0)
        {
                log_error("user_list_pool_init() error\n");
                goto cleanup;
        }
        if (user_list_pool_reload(0) < 0)
        {
                log_error("user_list_pool_reload(all_user) error\n");
                goto cleanup;
        }
        if (user_list_pool_reload(1) < 0)
        {
                log_error("user_list_pool_reload(online_user) error\n");
                goto cleanup;
        }

        // Load section config and gen_ex
        if (load_section_config_from_db(1) < 0)
        {
                log_error("load_section_config_from_db(0) error\n");
                goto cleanup;
        }

        set_last_article_op_log_from_db();
        last_aid = 0;

        // Load section articles
        do
        {
                if ((ret = append_articles_from_db(last_aid + 1, 1, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
                {
                        log_error("append_articles_from_db(0, 1, %d) error\n", LOAD_ARTICLE_COUNT_LIMIT);
                        goto cleanup;
                }

                last_aid = article_block_last_aid();
        } while (ret == LOAD_ARTICLE_COUNT_LIMIT);

        log_common("Initially load %d articles, last_aid = %d\n", article_block_article_count(), article_block_last_aid());

        // Set signal handler
        act.sa_handler = sig_hup_handler;
        if (sigaction(SIGHUP, &act, NULL) == -1)
        {
                log_error("set signal action of SIGHUP error: %d\n", errno);
                goto cleanup;
        }
        act.sa_handler = sig_chld_handler;
        if (sigaction(SIGCHLD, &act, NULL) == -1)
        {
                log_error("set signal action of SIGCHLD error: %d\n", errno);
                goto cleanup;
        }
        act.sa_handler = sig_term_handler;
        if (sigaction(SIGTERM, &act, NULL) == -1)
        {
                log_error("set signal action of SIGTERM error: %d\n", errno);
                goto cleanup;
        }

        // Launch section_list_loader process
        if (section_list_loader_launch() < 0)
        {
                log_error("section_list_loader_launch() error\n");
                goto cleanup;
        }

        // Initialize socket server
        net_server(BBS_address, BBS_port);

cleanup:
        // Cleanup loaded data files
        file_loader_cleanup();

        // Cleanup menu
        unload_menu(&bbs_menu);
        unload_menu(&top10_menu);

        // Cleanup data pools
        section_list_cleanup();
        article_block_cleanup();
        trie_dict_cleanup();
        user_list_pool_cleanup();

        if (unlink(VAR_ARTICLE_BLOCK_SHM) < 0)
        {
                log_error("unlink(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
        }
        if (unlink(VAR_SECTION_LIST_SHM) < 0)
        {
                log_error("unlink(%s) error\n", VAR_SECTION_LIST_SHM);
        }
        if (unlink(VAR_TRIE_DICT_SHM) < 0)
        {
                log_error("unlink(%s) error\n", VAR_TRIE_DICT_SHM);
        }
        if (unlink(VAR_USER_LIST_SHM) < 0)
        {
                log_error("unlink(%s) error\n", VAR_SECTION_LIST_SHM);
        }

        log_common("Main process exit normally\n");

        log_end();

        return 0;
}
1	/***************************************************************************
2	main.c - description
3	-------------------
4	Copyright : (C) 2004-2025 by Leaflet
5	Email : leaflet@leafok.com
6	***************************************************************************/
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	* the Free Software Foundation; either version 3 of the License, or *
13	* (at your option) any later version. *
14	* *
15	***************************************************************************/
16
17	#include "bbs.h"
18	#include "common.h"
19	#include "file_loader.h"
20	#include "init.h"
21	#include "io.h"
22	#include "log.h"
23	#include "menu.h"
24	#include "net_server.h"
25	#include "section_list_loader.h"
26	#include "user_list.h"
27	#include <errno.h>
28	#include <libgen.h>
29	#include <signal.h>
30	#include <stdio.h>
31	#include <stdlib.h>
32	#include <string.h>
33	#include <unistd.h>
34	#include <sys/stat.h>
35	#include <sys/types.h>
36
37	static void app_help(void)
38	{
39	fprintf(stderr, "Usage: bbsd [-fhv] [...]\n\n"
40	"-f\t--foreground\t\tForce program run in foreground\n"
41	"-h\t--help\t\t\tDisplay this help message\n"
42	"-v\t--version\t\tDisplay version information\n"
43	"\t--display-log\t\tDisplay standard log information\n"
44	"\t--display-error-log\tDisplay error log information\n"
45	"\n If meet any bug, please report to <leaflet@leafok.com>\n\n");
46	}
47
48	static void arg_error(void)
49	{
50	fprintf(stderr, "Invalid arguments\n");
51	app_help();
52	}
53
54	int main(int argc, char *argv[])
55	{
56	char file_path_temp[FILE_PATH_LEN];
57	int daemon = 1;
58	int std_log_redir = 0;
59	int error_log_redir = 0;
60	FILE *fp;
61	int ret;
62	int last_aid;
63	struct sigaction act = {0};
64
65	// Parse args
66	for (int i = 1; i < argc; i++)
67	{
68	switch (argv[i][0])
69	{
70	case '-':
71	if (argv[i][1] != '-')
72	{
73	for (int j = 1; j < strlen(argv[i]); j++)
74	{
75	switch (argv[i][j])
76	{
77	case 'f':
78	daemon = 0;
79	break;
80	case 'h':
81	app_help();
82	return 0;
83	case 'v':
84	puts(APP_INFO);
85	return 0;
86	default:
87	arg_error();
88	return 1;
89	}
90	}
91	}
92	else
93	{
94	if (strcmp(argv[i] + 2, "foreground") == 0)
95	{
96	daemon = 0;
97	break;
98	}
99	if (strcmp(argv[i] + 2, "help") == 0)
100	{
101	app_help();
102	return 0;
103	}
104	if (strcmp(argv[i] + 2, "version") == 0)
105	{
106	puts(APP_INFO);
107	return 0;
108	}
109	if (strcmp(argv[i] + 2, "display-log") == 0)
110	{
111	std_log_redir = 1;
112	}
113	if (strcmp(argv[i] + 2, "display-error-log") == 0)
114	{
115	error_log_redir = 1;
116	}
117	}
118	break;
119	}
120	}
121
122	// Initialize daemon
123	if (daemon)
124	{
125	init_daemon();
126	}
127
128	// Change current dir
129	strncpy(file_path_temp, argv[0], sizeof(file_path_temp) - 1);
130	file_path_temp[sizeof(file_path_temp) - 1] = '\0';
131
132	if (chdir(dirname(file_path_temp)) < 0)
133	{
134	fprintf(stderr, "chdir(%s) error: %d\n", dirname(file_path_temp), errno);
135	return -1;
136	}
137	if (chdir("..") < 0)
138	{
139	fprintf(stderr, "chdir(..) error: %d\n", errno);
140	return -1;
141	}
142
143	// Initialize log
144	if (log_begin(LOG_FILE_INFO, LOG_FILE_ERROR) < 0)
145	{
146	return -1;
147	}
148
149	if ((!daemon) && std_log_redir)
150	{
151	log_common_redir(STDERR_FILENO);
152	}
153	if ((!daemon) && error_log_redir)
154	{
155	log_error_redir(STDERR_FILENO);
156	}
157
158	log_common("Starting %s\n", APP_INFO);
159
160	// Load configuration
161	if (load_conf(CONF_BBSD) < 0)
162	{
163	return -2;
164	}
165
166	// Check article cache dir
167	ret = mkdir(VAR_ARTICLE_CACHE_DIR, 0750);
168	if (ret == -1 && errno != EEXIST)
169	{
170	log_error("mkdir(%s) error (%d)\n", VAR_ARTICLE_CACHE_DIR, errno);
171	goto cleanup;
172	}
173
174	// Initialize data pools
175	if ((fp = fopen(VAR_ARTICLE_BLOCK_SHM, "w")) == NULL)
176	{
177	log_error("fopen(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
178	goto cleanup;
179	}
180	fclose(fp);
181	if ((fp = fopen(VAR_SECTION_LIST_SHM, "w")) == NULL)
182	{
183	log_error("fopen(%s) error\n", VAR_SECTION_LIST_SHM);
184	goto cleanup;
185	}
186	fclose(fp);
187	if ((fp = fopen(VAR_TRIE_DICT_SHM, "w")) == NULL)
188	{
189	log_error("fopen(%s) error\n", VAR_TRIE_DICT_SHM);
190	goto cleanup;
191	}
192	fclose(fp);
193	if ((fp = fopen(VAR_USER_LIST_SHM, "w")) == NULL)
194	{
195	log_error("fopen(%s) error\n", VAR_USER_LIST_SHM);
196	goto cleanup;
197	}
198	fclose(fp);
199
200	if (trie_dict_init(VAR_TRIE_DICT_SHM, TRIE_NODE_PER_POOL) < 0)
201	{
202	printf("trie_dict_init failed\n");
203	goto cleanup;
204	}
205	if (article_block_init(VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK) < 0)
206	{
207	log_error("article_block_init(%s, %d) error\n", VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK);
208	goto cleanup;
209	}
210	if (section_list_init(VAR_SECTION_LIST_SHM) < 0)
211	{
212	log_error("section_list_pool_init(%s) error\n", VAR_SECTION_LIST_SHM);
213	goto cleanup;
214	}
215
216	// Load BBS cmd
217	if (load_cmd() < 0)
218	{
219	goto cleanup;
220	}
221
222	// Load menus
223	if (load_menu(&bbs_menu, CONF_MENU) < 0)
224	{
225	log_error("load_menu(%s) error\n", CONF_MENU);
226	goto cleanup;
227	}
228	if (load_menu(&top10_menu, CONF_TOP10_MENU) < 0)
229	{
230	log_error("load_menu(%s) error\n", CONF_TOP10_MENU);
231	goto cleanup;
232	}
233	top10_menu.allow_exit = 1;
234
235	// Load data files
236	if (file_loader_init() < 0)
237	{
238	log_error("file_loader_init() error\n");
239	goto cleanup;
240	}
241	for (int i = 0; i < data_files_load_startup_count; i++)
242	{
243	if (load_file(data_files_load_startup[i]) < 0)
244	{
245	log_error("load_file_mmap(%s) error\n", data_files_load_startup[i]);
246	}
247	}
248
249	// Load user_list and online_user_list
250	if (user_list_pool_init() < 0)
251	{
252	log_error("user_list_pool_init() error\n");
253	goto cleanup;
254	}
255	if (user_list_pool_reload(0) < 0)
256	{
257	log_error("user_list_pool_reload(all_user) error\n");
258	goto cleanup;
259	}
260	if (user_list_pool_reload(1) < 0)
261	{
262	log_error("user_list_pool_reload(online_user) error\n");
263	goto cleanup;
264	}
265
266	// Load section config and gen_ex
267	if (load_section_config_from_db(1) < 0)
268	{
269	log_error("load_section_config_from_db(0) error\n");
270	goto cleanup;
271	}
272
273	set_last_article_op_log_from_db();
274	last_aid = 0;
275
276	// Load section articles
277	do
278	{
279	if ((ret = append_articles_from_db(last_aid + 1, 1, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
280	{
281	log_error("append_articles_from_db(0, 1, %d) error\n", LOAD_ARTICLE_COUNT_LIMIT);
282	goto cleanup;
283	}
284
285	last_aid = article_block_last_aid();
286	} while (ret == LOAD_ARTICLE_COUNT_LIMIT);
287
288	log_common("Initially load %d articles, last_aid = %d\n", article_block_article_count(), article_block_last_aid());
289
290	// Set signal handler
291	act.sa_handler = sig_hup_handler;
292	if (sigaction(SIGHUP, &act, NULL) == -1)
293	{
294	log_error("set signal action of SIGHUP error: %d\n", errno);
295	goto cleanup;
296	}
297	act.sa_handler = sig_chld_handler;
298	if (sigaction(SIGCHLD, &act, NULL) == -1)
299	{
300	log_error("set signal action of SIGCHLD error: %d\n", errno);
301	goto cleanup;
302	}
303	act.sa_handler = sig_term_handler;
304	if (sigaction(SIGTERM, &act, NULL) == -1)
305	{
306	log_error("set signal action of SIGTERM error: %d\n", errno);
307	goto cleanup;
308	}
309
310	// Launch section_list_loader process
311	if (section_list_loader_launch() < 0)
312	{
313	log_error("section_list_loader_launch() error\n");
314	goto cleanup;
315	}
316
317	// Initialize socket server
318	net_server(BBS_address, BBS_port);
319
320	cleanup:
321	// Cleanup loaded data files
322	file_loader_cleanup();
323
324	// Cleanup menu
325	unload_menu(&bbs_menu);
326	unload_menu(&top10_menu);
327
328	// Cleanup data pools
329	section_list_cleanup();
330	article_block_cleanup();
331	trie_dict_cleanup();
332	user_list_pool_cleanup();
333
334	if (unlink(VAR_ARTICLE_BLOCK_SHM) < 0)
335	{
336	log_error("unlink(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
337	}
338	if (unlink(VAR_SECTION_LIST_SHM) < 0)
339	{
340	log_error("unlink(%s) error\n", VAR_SECTION_LIST_SHM);
341	}
342	if (unlink(VAR_TRIE_DICT_SHM) < 0)
343	{
344	log_error("unlink(%s) error\n", VAR_TRIE_DICT_SHM);
345	}
346	if (unlink(VAR_USER_LIST_SHM) < 0)
347	{
348	log_error("unlink(%s) error\n", VAR_SECTION_LIST_SHM);
349	}
350
351	log_common("Main process exit normally\n");
352
353	log_end();
354
355	return 0;
356	}
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