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 <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_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
        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 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();

        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");

        log_end();

        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	1.55	#include "common.h"
19			#include "file_loader.h"
20	sysadm	1.20	#include "init.h"
21	sysadm	1.55	#include "io.h"
22	sysadm	1.20	#include "log.h"
23	sysadm	1.9	#include "menu.h"
24	sysadm	1.55	#include "net_server.h"
25	sysadm	1.42	#include "section_list_loader.h"
26	sysadm	1.48	#include <errno.h>
27	sysadm	1.55	#include <libgen.h>
28			#include <signal.h>
29	sysadm	1.56	#include <stdio.h>
30	sysadm	1.20	#include <stdlib.h>
31	sysadm	1.7	#include <string.h>
32	sysadm	1.20	#include <unistd.h>
33	sysadm	1.55	#include <sys/stat.h>
34	sysadm	1.15	#include <sys/types.h>
35	sysadm	1.1
36	sysadm	1.56	static void app_help(void)
37	sysadm	1.6	{
38	sysadm	1.56	fprintf(stderr, "Usage: bbsd [-fhv] [...]\n\n"
39			"-f\t--foreground\t\tForce program run in foreground\n"
40			"-h\t--help\t\t\tDisplay this help message\n"
41			"-v\t--version\t\tDisplay version information\n"
42			"\t--display-log\t\tDisplay standard log information\n"
43			"\t--display-error-log\tDisplay error log information\n"
44			"\n If meet any bug, please report to <leaflet@leafok.com>\n\n");
45	sysadm	1.6	}
46
47	sysadm	1.56	static void arg_error(void)
48	sysadm	1.6	{
49	sysadm	1.56	fprintf(stderr, "Invalid arguments\n");
50	sysadm	1.18	app_help();
51	sysadm	1.6	}
52
53	sysadm	1.18	int main(int argc, char *argv[])
54	sysadm	1.1	{
55	sysadm	1.21	char file_path_temp[FILE_PATH_LEN];
56			int daemon = 1;
57			int std_log_redir = 0;
58			int error_log_redir = 0;
59	sysadm	1.42	FILE *fp;
60	sysadm	1.47	int ret;
61			int last_aid;
62	sysadm	1.52	struct sigaction act = {0};
63	sysadm	1.18
64			// Parse args
65	sysadm	1.21	for (int i = 1; i < argc; i++)
66	sysadm	1.12	{
67	sysadm	1.18	switch (argv[i][0])
68	sysadm	1.12	{
69	sysadm	1.18	case '-':
70			if (argv[i][1] != '-')
71			{
72	sysadm	1.21	for (int j = 1; j < strlen(argv[i]); j++)
73	sysadm	1.18	{
74			switch (argv[i][j])
75			{
76			case 'f':
77			daemon = 0;
78			break;
79			case 'h':
80			app_help();
81	sysadm	1.30	return 0;
82	sysadm	1.18	case 'v':
83	sysadm	1.54	puts(APP_INFO);
84	sysadm	1.30	return 0;
85	sysadm	1.18	default:
86			arg_error();
87	sysadm	1.30	return 1;
88	sysadm	1.18	}
89			}
90			}
91			else
92			{
93			if (strcmp(argv[i] + 2, "foreground") == 0)
94			{
95			daemon = 0;
96			break;
97			}
98			if (strcmp(argv[i] + 2, "help") == 0)
99			{
100			app_help();
101	sysadm	1.30	return 0;
102	sysadm	1.18	}
103			if (strcmp(argv[i] + 2, "version") == 0)
104			{
105	sysadm	1.54	puts(APP_INFO);
106	sysadm	1.30	return 0;
107	sysadm	1.18	}
108			if (strcmp(argv[i] + 2, "display-log") == 0)
109			{
110			std_log_redir = 1;
111			}
112			if (strcmp(argv[i] + 2, "display-error-log") == 0)
113			{
114			error_log_redir = 1;
115			}
116			}
117			break;
118	sysadm	1.12	}
119			}
120
121	sysadm	1.18	// Initialize daemon
122			if (daemon)
123	sysadm	1.20	{
124	sysadm	1.31	init_daemon();
125	sysadm	1.20	}
126	sysadm	1.18
127			// Change current dir
128	sysadm	1.21	strncpy(file_path_temp, argv[0], sizeof(file_path_temp) - 1);
129	sysadm	1.22	file_path_temp[sizeof(file_path_temp) - 1] = '\0';
130
131	sysadm	1.61	if (chdir(dirname(file_path_temp)) < 0)
132			{
133			fprintf(stderr, "chdir(%s) error: %d\n", dirname(file_path_temp), errno);
134			return -1;
135			}
136			if (chdir("..") < 0)
137			{
138			fprintf(stderr, "chdir(..) error: %d\n", errno);
139			return -1;
140			}
141	sysadm	1.18
142			// Initialize log
143	sysadm	1.21	if (log_begin(LOG_FILE_INFO, LOG_FILE_ERROR) < 0)
144			{
145	sysadm	1.30	return -1;
146	sysadm	1.21	}
147	sysadm	1.18
148			if ((!daemon) && std_log_redir)
149	sysadm	1.21	{
150	sysadm	1.50	log_common_redir(STDERR_FILENO);
151	sysadm	1.21	}
152	sysadm	1.18	if ((!daemon) && error_log_redir)
153	sysadm	1.21	{
154	sysadm	1.50	log_error_redir(STDERR_FILENO);
155	sysadm	1.21	}
156	sysadm	1.18
157	sysadm	1.54	log_common("Starting %s\n", APP_INFO);
158	sysadm	1.51
159	sysadm	1.18	// Load configuration
160	sysadm	1.26	if (load_conf(CONF_BBSD) < 0)
161			{
162	sysadm	1.30	return -2;
163	sysadm	1.26	}
164	sysadm	1.18
165	sysadm	1.48	// Check article cache dir
166	sysadm	1.49	ret = mkdir(VAR_ARTICLE_CACHE_DIR, 0750);
167	sysadm	1.48	if (ret == -1 && errno != EEXIST)
168			{
169			log_error("mkdir(%s) error (%d)\n", VAR_ARTICLE_CACHE_DIR, errno);
170			goto cleanup;
171			}
172
173	sysadm	1.42	// Initialize data pools
174			if ((fp = fopen(VAR_TRIE_DICT_SHM, "w")) == NULL)
175			{
176			log_error("fopen(%s) error\n", VAR_TRIE_DICT_SHM);
177	sysadm	1.43	goto cleanup;
178	sysadm	1.42	}
179			fclose(fp);
180			if ((fp = fopen(VAR_ARTICLE_BLOCK_SHM, "w")) == NULL)
181			{
182			log_error("fopen(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
183	sysadm	1.43	goto cleanup;
184	sysadm	1.42	}
185			fclose(fp);
186			if ((fp = fopen(VAR_SECTION_LIST_SHM, "w")) == NULL)
187			{
188			log_error("fopen(%s) error\n", VAR_SECTION_LIST_SHM);
189	sysadm	1.43	goto cleanup;
190	sysadm	1.42	}
191			fclose(fp);
192
193			if (trie_dict_init(VAR_TRIE_DICT_SHM, TRIE_NODE_PER_POOL) < 0)
194	sysadm	1.39	{
195			printf("trie_dict_init failed\n");
196	sysadm	1.43	goto cleanup;
197	sysadm	1.39	}
198	sysadm	1.42	if (article_block_init(VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK) < 0)
199			{
200			log_error("article_block_init(%s, %d) error\n", VAR_ARTICLE_BLOCK_SHM, BBS_article_limit_per_section * BBS_max_section / ARTICLE_PER_BLOCK);
201	sysadm	1.43	goto cleanup;
202	sysadm	1.42	}
203			if (section_list_init(VAR_SECTION_LIST_SHM) < 0)
204			{
205			log_error("section_list_pool_init(%s) error\n", VAR_SECTION_LIST_SHM);
206	sysadm	1.43	goto cleanup;
207	sysadm	1.42	}
208	sysadm	1.39
209	sysadm	1.36	// Load BBS cmd
210			if (load_cmd() < 0)
211			{
212	sysadm	1.43	goto cleanup;
213	sysadm	1.36	}
214
215	sysadm	1.18	// Load menus
216	sysadm	1.59	if (load_menu(&bbs_menu, CONF_MENU) < 0)
217	sysadm	1.32	{
218	sysadm	1.62	log_error("load_menu(%s) error\n", CONF_MENU);
219	sysadm	1.43	goto cleanup;
220	sysadm	1.26	}
221	sysadm	1.62	if (load_menu(&top10_menu, CONF_TOP10_MENU) < 0)
222			{
223			log_error("load_menu(%s) error\n", CONF_TOP10_MENU);
224			goto cleanup;
225			}
226			top10_menu.allow_exit = 1;
227	sysadm	1.18
228	sysadm	1.34	// Load data files
229	sysadm	1.35	if (file_loader_init() < 0)
230	sysadm	1.34	{
231			log_error("file_loader_init() error\n");
232	sysadm	1.43	goto cleanup;
233	sysadm	1.34	}
234			for (int i = 0; i < data_files_load_startup_count; i++)
235			{
236	sysadm	1.39	if (load_file(data_files_load_startup[i]) < 0)
237	sysadm	1.34	{
238			log_error("load_file_mmap(%s) error\n", data_files_load_startup[i]);
239			}
240			}
241
242	sysadm	1.60	// Load section config and gen_ex
243			if (load_section_config_from_db(1) < 0)
244	sysadm	1.42	{
245	sysadm	1.60	log_error("load_section_config_from_db(0) error\n");
246	sysadm	1.43	goto cleanup;
247	sysadm	1.42	}
248
249	sysadm	1.46	set_last_article_op_log_from_db();
250	sysadm	1.47	last_aid = 0;
251
252	sysadm	1.45	// Load section articles
253	sysadm	1.47	do
254	sysadm	1.43	{
255	sysadm	1.47	if ((ret = append_articles_from_db(last_aid + 1, 1, LOAD_ARTICLE_COUNT_LIMIT)) < 0)
256			{
257			log_error("append_articles_from_db(0, 1, %d) error\n", LOAD_ARTICLE_COUNT_LIMIT);
258			goto cleanup;
259			}
260
261			last_aid = article_block_last_aid();
262			} while (ret == LOAD_ARTICLE_COUNT_LIMIT);
263	sysadm	1.43
264	sysadm	1.50	log_common("Initially load %d articles, last_aid = %d\n", article_block_article_count(), article_block_last_aid());
265	sysadm	1.43
266	sysadm	1.18	// Set signal handler
267	sysadm	1.52	act.sa_handler = sig_hup_handler;
268			if (sigaction(SIGHUP, &act, NULL) == -1)
269			{
270			log_error("set signal action of SIGHUP error: %d\n", errno);
271			goto cleanup;
272			}
273			act.sa_handler = sig_chld_handler;
274			if (sigaction(SIGCHLD, &act, NULL) == -1)
275			{
276			log_error("set signal action of SIGCHLD error: %d\n", errno);
277			goto cleanup;
278			}
279			act.sa_handler = sig_term_handler;
280			if (sigaction(SIGTERM, &act, NULL) == -1)
281			{
282			log_error("set signal action of SIGTERM error: %d\n", errno);
283			goto cleanup;
284			}
285	sysadm	1.18
286	sysadm	1.45	// Launch section_list_loader process
287			if (section_list_loader_launch() < 0)
288			{
289			log_error("section_list_loader_launch() error\n");
290			goto cleanup;
291			}
292
293	sysadm	1.18	// Initialize socket server
294	sysadm	1.33	net_server(BBS_address, BBS_port);
295	sysadm	1.18
296	sysadm	1.43	cleanup:
297	sysadm	1.34	// Cleanup loaded data files
298			file_loader_cleanup();
299	sysadm	1.42
300	sysadm	1.32	// Cleanup menu
301	sysadm	1.59	unload_menu(&bbs_menu);
302	sysadm	1.62	unload_menu(&top10_menu);
303	sysadm	1.15
304	sysadm	1.42	// Cleanup data pools
305			section_list_cleanup();
306			article_block_cleanup();
307	sysadm	1.39	trie_dict_cleanup();
308
309	sysadm	1.42	if (unlink(VAR_TRIE_DICT_SHM) < 0)
310			{
311			log_error("unlink(%s) error\n", VAR_TRIE_DICT_SHM);
312			}
313			if (unlink(VAR_ARTICLE_BLOCK_SHM) < 0)
314			{
315			log_error("unlink(%s) error\n", VAR_ARTICLE_BLOCK_SHM);
316			}
317			if (unlink(VAR_SECTION_LIST_SHM) < 0)
318			{
319			log_error("unlink(%s) error\n", VAR_SECTION_LIST_SHM);
320			}
321
322	sysadm	1.50	log_common("Main process exit normally\n");
323	sysadm	1.42
324	sysadm	1.57	log_end();
325
326	sysadm	1.30	return 0;
327	sysadm	1.1	}
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