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

void app_help(void)
{
        prints("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");
}

void arg_error(void)
{
        prints("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';

        chdir(dirname(file_path_temp));
        chdir("..");

        // 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_TRIE_DICT_SHM, "w")) == NULL)
        {
                log_error("fopen(%s) error\n", VAR_TRIE_DICT_SHM);
                goto cleanup;
        }
        fclose(fp);
        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 (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
        p_bbs_menu = calloc(1, sizeof(MENU_SET));
        if (p_bbs_menu == NULL)
        {
                log_error("OOM: calloc(MENU_SET)\n");
                goto cleanup;
        }
        if (load_menu(p_bbs_menu, CONF_MENU) < 0)
        {
                goto cleanup;
        }

        // 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 section config
        if (load_section_config_from_db() < 0)
        {
                log_error("load_section_config_from_db() 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(p_bbs_menu);
        free(p_bbs_menu);
        p_bbs_menu = NULL;

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

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

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

        return 0;
}
1	sysadm	1.1	/***************************************************************************
2	sysadm	1.18	main.c - description
3			-------------------
4	sysadm	1.23	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	1.23	* 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	1.4	#include "bbs.h"
18	sysadm	1.20	#include "init.h"
19	sysadm	1.1	#include "common.h"
20	sysadm	1.20	#include "net_server.h"
21			#include "log.h"
22	sysadm	1.7	#include "io.h"
23	sysadm	1.9	#include "menu.h"
24	sysadm	1.34	#include "file_loader.h"
25	sysadm	1.42	#include "section_list_loader.h"
26	sysadm	1.48	#include <errno.h>
27	sysadm	1.20	#include <stdlib.h>
28	sysadm	1.14	#include <signal.h>
29	sysadm	1.7	#include <string.h>
30	sysadm	1.20	#include <unistd.h>
31	sysadm	1.21	#include <libgen.h>
32	sysadm	1.15	#include <sys/types.h>
33	sysadm	1.20	#include <sys/stat.h>
34	sysadm	1.1
35	sysadm	1.18	void app_help(void)
36	sysadm	1.6	{
37	sysadm	1.18	prints("Usage: bbsd [-fhv] [...]\n\n"
38			"-f\t--foreground\t\tForce program run in foreground\n"
39			"-h\t--help\t\t\tDisplay this help message\n"
40			"-v\t--version\t\tDisplay version information\n"
41			"\t--display-log\t\tDisplay standard log information\n"
42			"\t--display-error-log\tDisplay error log information\n"
43			"\n If meet any bug, please report to <leaflet@leafok.com>\n\n");
44	sysadm	1.6	}
45
46	sysadm	1.18	void arg_error(void)
47	sysadm	1.6	{
48	sysadm	1.18	prints("Invalid arguments\n");
49			app_help();
50	sysadm	1.6	}
51
52	sysadm	1.18	int main(int argc, char *argv[])
53	sysadm	1.1	{
54	sysadm	1.21	char file_path_temp[FILE_PATH_LEN];
55			int daemon = 1;
56			int std_log_redir = 0;
57			int error_log_redir = 0;
58	sysadm	1.42	FILE *fp;
59	sysadm	1.47	int ret;
60			int last_aid;
61	sysadm	1.52	struct sigaction act = {0};
62	sysadm	1.18
63			// Parse args
64	sysadm	1.21	for (int i = 1; i < argc; i++)
65	sysadm	1.12	{
66	sysadm	1.18	switch (argv[i][0])
67	sysadm	1.12	{
68	sysadm	1.18	case '-':
69			if (argv[i][1] != '-')
70			{
71	sysadm	1.21	for (int j = 1; j < strlen(argv[i]); j++)
72	sysadm	1.18	{
73			switch (argv[i][j])
74			{
75			case 'f':
76			daemon = 0;
77			break;
78			case 'h':
79			app_help();
80	sysadm	1.30	return 0;
81	sysadm	1.18	case 'v':
82	sysadm	1.54	puts(APP_INFO);
83	sysadm	1.30	return 0;
84	sysadm	1.18	default:
85			arg_error();
86	sysadm	1.30	return 1;
87	sysadm	1.18	}
88			}
89			}
90			else
91			{
92			if (strcmp(argv[i] + 2, "foreground") == 0)
93			{
94			daemon = 0;
95			break;
96			}
97			if (strcmp(argv[i] + 2, "help") == 0)
98			{
99			app_help();
100	sysadm	1.30	return 0;
101	sysadm	1.18	}
102			if (strcmp(argv[i] + 2, "version") == 0)
103			{
104	sysadm	1.54	puts(APP_INFO);
105	sysadm	1.30	return 0;
106	sysadm	1.18	}
107			if (strcmp(argv[i] + 2, "display-log") == 0)
108			{
109			std_log_redir = 1;
110			}
111			if (strcmp(argv[i] + 2, "display-error-log") == 0)
112			{
113			error_log_redir = 1;
114			}
115			}
116			break;
117	sysadm	1.12	}
118			}
119
120	sysadm	1.18	// Initialize daemon
121			if (daemon)
122	sysadm	1.20	{
123	sysadm	1.31	init_daemon();
124	sysadm	1.20	}
125	sysadm	1.18
126			// Change current dir
127	sysadm	1.21	strncpy(file_path_temp, argv[0], sizeof(file_path_temp) - 1);
128	sysadm	1.22	file_path_temp[sizeof(file_path_temp) - 1] = '\0';
129
130	sysadm	1.21	chdir(dirname(file_path_temp));
131			chdir("..");
132	sysadm	1.18
133			// Initialize log
134	sysadm	1.21	if (log_begin(LOG_FILE_INFO, LOG_FILE_ERROR) < 0)
135			{
136	sysadm	1.30	return -1;
137	sysadm	1.21	}
138	sysadm	1.18
139			if ((!daemon) && std_log_redir)
140	sysadm	1.21	{
141	sysadm	1.50	log_common_redir(STDERR_FILENO);
142	sysadm	1.21	}
143	sysadm	1.18	if ((!daemon) && error_log_redir)
144	sysadm	1.21	{
145	sysadm	1.50	log_error_redir(STDERR_FILENO);
146	sysadm	1.21	}
147	sysadm	1.18
148	sysadm	1.54	log_common("Starting %s\n", APP_INFO);
149	sysadm	1.51
150	sysadm	1.18	// Load configuration
151	sysadm	1.26	if (load_conf(CONF_BBSD) < 0)
152			{
153	sysadm	1.30	return -2;
154	sysadm	1.26	}
155	sysadm	1.18
156	sysadm	1.48	// Check article cache dir
157	sysadm	1.49	ret = mkdir(VAR_ARTICLE_CACHE_DIR, 0750);
158	sysadm	1.48	if (ret == -1 && errno != EEXIST)
159			{
160			log_error("mkdir(%s) error (%d)\n", VAR_ARTICLE_CACHE_DIR, errno);
161			goto cleanup;
162			}
163
164	sysadm	1.42	// Initialize data pools
165			if ((fp = fopen(VAR_TRIE_DICT_SHM, "w")) == NULL)
166			{
167			log_error("fopen(%s) error\n", VAR_TRIE_DICT_SHM);
168	sysadm	1.43	goto cleanup;
169	sysadm	1.42	}
170			fclose(fp);
171			if ((fp = fopen(VAR_ARTICLE_BLOCK_SHM, "w")) == NULL)
172			{
173			log_error("fopen(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
174	sysadm	1.43	goto cleanup;
175	sysadm	1.42	}
176			fclose(fp);
177			if ((fp = fopen(VAR_SECTION_LIST_SHM, "w")) == NULL)
178			{
179			log_error("fopen(%s) error\n", VAR_SECTION_LIST_SHM);
180	sysadm	1.43	goto cleanup;
181	sysadm	1.42	}
182			fclose(fp);
183
184			if (trie_dict_init(VAR_TRIE_DICT_SHM, TRIE_NODE_PER_POOL) < 0)
185	sysadm	1.39	{
186			printf("trie_dict_init failed\n");
187	sysadm	1.43	goto cleanup;
188	sysadm	1.39	}
189	sysadm	1.42	if (article_block_init(VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK) < 0)
190			{
191			log_error("article_block_init(%s, %d) error\n", VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK);
192	sysadm	1.43	goto cleanup;
193	sysadm	1.42	}
194			if (section_list_init(VAR_SECTION_LIST_SHM) < 0)
195			{
196			log_error("section_list_pool_init(%s) error\n", VAR_SECTION_LIST_SHM);
197	sysadm	1.43	goto cleanup;
198	sysadm	1.42	}
199	sysadm	1.39
200	sysadm	1.36	// Load BBS cmd
201			if (load_cmd() < 0)
202			{
203	sysadm	1.43	goto cleanup;
204	sysadm	1.36	}
205
206	sysadm	1.18	// Load menus
207	sysadm	1.32	p_bbs_menu = calloc(1, sizeof(MENU_SET));
208			if (p_bbs_menu == NULL)
209	sysadm	1.26	{
210	sysadm	1.32	log_error("OOM: calloc(MENU_SET)\n");
211	sysadm	1.43	goto cleanup;
212	sysadm	1.32	}
213			if (load_menu(p_bbs_menu, CONF_MENU) < 0)
214			{
215	sysadm	1.43	goto cleanup;
216	sysadm	1.26	}
217	sysadm	1.18
218	sysadm	1.34	// Load data files
219	sysadm	1.35	if (file_loader_init() < 0)
220	sysadm	1.34	{
221			log_error("file_loader_init() error\n");
222	sysadm	1.43	goto cleanup;
223	sysadm	1.34	}
224			for (int i = 0; i < data_files_load_startup_count; i++)
225			{
226	sysadm	1.39	if (load_file(data_files_load_startup[i]) < 0)
227	sysadm	1.34	{
228			log_error("load_file_mmap(%s) error\n", data_files_load_startup[i]);
229			}
230			}
231
232	sysadm	1.42	// Load section config
233			if (load_section_config_from_db() < 0)
234			{
235			log_error("load_section_config_from_db() error\n");
236	sysadm	1.43	goto cleanup;
237	sysadm	1.42	}
238
239	sysadm	1.46	set_last_article_op_log_from_db();
240	sysadm	1.47	last_aid = 0;
241
242	sysadm	1.45	// Load section articles
243	sysadm	1.47	do
244	sysadm	1.43	{
245	sysadm	1.47	if ((ret = append_articles_from_db(last_aid + 1, 1, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
246			{
247			log_error("append_articles_from_db(0, 1, %d) error\n", LOAD_ARTICLE_COUNT_LIMIT);
248			goto cleanup;
249			}
250
251			last_aid = article_block_last_aid();
252			} while (ret == LOAD_ARTICLE_COUNT_LIMIT);
253	sysadm	1.43
254	sysadm	1.50	log_common("Initially load %d articles, last_aid = %d\n", article_block_article_count(), article_block_last_aid());
255	sysadm	1.43
256	sysadm	1.18	// Set signal handler
257	sysadm	1.52	act.sa_handler = sig_hup_handler;
258			if (sigaction(SIGHUP, &act, NULL) == -1)
259			{
260			log_error("set signal action of SIGHUP error: %d\n", errno);
261			goto cleanup;
262			}
263			act.sa_handler = sig_chld_handler;
264			if (sigaction(SIGCHLD, &act, NULL) == -1)
265			{
266			log_error("set signal action of SIGCHLD error: %d\n", errno);
267			goto cleanup;
268			}
269			act.sa_handler = sig_term_handler;
270			if (sigaction(SIGTERM, &act, NULL) == -1)
271			{
272			log_error("set signal action of SIGTERM error: %d\n", errno);
273			goto cleanup;
274			}
275	sysadm	1.18
276	sysadm	1.45	// Launch section_list_loader process
277			if (section_list_loader_launch() < 0)
278			{
279			log_error("section_list_loader_launch() error\n");
280			goto cleanup;
281			}
282
283	sysadm	1.18	// Initialize socket server
284	sysadm	1.33	net_server(BBS_address, BBS_port);
285	sysadm	1.18
286	sysadm	1.43	cleanup:
287	sysadm	1.34	// Cleanup loaded data files
288			file_loader_cleanup();
289	sysadm	1.42
290	sysadm	1.32	// Cleanup menu
291			unload_menu(p_bbs_menu);
292			free(p_bbs_menu);
293			p_bbs_menu = NULL;
294	sysadm	1.15
295	sysadm	1.42	// Cleanup data pools
296			section_list_cleanup();
297			article_block_cleanup();
298	sysadm	1.39	trie_dict_cleanup();
299
300	sysadm	1.42	if (unlink(VAR_TRIE_DICT_SHM) < 0)
301			{
302			log_error("unlink(%s) error\n", VAR_TRIE_DICT_SHM);
303			}
304			if (unlink(VAR_ARTICLE_BLOCK_SHM) < 0)
305			{
306			log_error("unlink(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
307			}
308			if (unlink(VAR_SECTION_LIST_SHM) < 0)
309			{
310			log_error("unlink(%s) error\n", VAR_SECTION_LIST_SHM);
311			}
312
313	sysadm	1.50	log_common("Main process exit normally\n");
314	sysadm	1.42
315	sysadm	1.30	return 0;
316	sysadm	1.1	}
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