lbbs/src/init.c

/***************************************************************************
                                                  init.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 "database.h"
#include "init.h"
#include "io.h"
#include "log.h"
#include <signal.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/types.h>

#define CONF_DELIM_WITH_SPACE " \t\r\n"

int init_daemon(void)
{
        int pid;

        pid = fork();

        if (pid > 0) // Parent process
        {
                _exit(0);
        }
        else if (pid < 0) // error
        {
                _exit(pid);
        }

        // Child process
        setsid();

        pid = fork();

        if (pid > 0) // Parent process
        {
                _exit(0);
        }
        else if (pid < 0) // error
        {
                _exit(pid);
        }

        // Child process
        umask(022);

        return 0;
}

int load_conf(const char *conf_file)
{
        char buffer[LINE_BUFFER_LEN];
        char *saveptr = NULL;
        char *p, *q, *r;
        char *y, *m, *d;
        FILE *fin;

        // Load configuration
        if ((fin = fopen(conf_file, "r")) == NULL)
        {
                log_error("Open %s failed", conf_file);
                return -1;
        }

        while (fgets(buffer, sizeof(buffer), fin) != NULL)
        {
                p = strtok_r(buffer, CONF_DELIM_WITH_SPACE, &saveptr);
                if (p == NULL) // Blank line
                {
                        continue;
                }

                if (*p == '#' || *p == '\r' || *p == '\n') // Comment or blank line
                {
                        continue;
                }

                q = strtok_r(NULL, CONF_DELIM_WITH_SPACE, &saveptr);
                if (q == NULL) // Empty value
                {
                        log_error("Skip empty value of config item: %s\n", p);
                        continue;
                }

                // Check syntax
                r = strtok_r(NULL, CONF_DELIM_WITH_SPACE, &saveptr);
                if (r != NULL && r[0] != '#')
                {
                        log_error("Skip config line with extra value %s = %s %s\n", p, q, r);
                        continue;
                }

                if (strcasecmp(p, "bbs_id") == 0)
                {
                        strncpy(BBS_id, q, sizeof(BBS_id) - 1);
                        BBS_id[sizeof(BBS_id) - 1] = '\0';
                }
                else if (strcasecmp(p, "bbs_name") == 0)
                {
                        strncpy(BBS_name, q, sizeof(BBS_name) - 1);
                        BBS_name[sizeof(BBS_name) - 1] = '\0';
                }
                else if (strcasecmp(p, "bbs_server") == 0)
                {
                        strncpy(BBS_server, q, sizeof(BBS_server) - 1);
                        BBS_server[sizeof(BBS_server) - 1] = '\0';
                }
                else if (strcasecmp(p, "bbs_address") == 0)
                {
                        strncpy(BBS_address, q, sizeof(BBS_address) - 1);
                        BBS_address[sizeof(BBS_address) - 1] = '\0';
                }
                else if (strcasecmp(p, "bbs_port") == 0)
                {
                        BBS_port[0] = (in_port_t)atoi(q);
                }
                else if (strcasecmp(p, "bbs_ssh_port") == 0)
                {
                        BBS_port[1] = (in_port_t)atoi(q);
                }
                else if (strcasecmp(p, "bbs_max_client") == 0)
                {
                        BBS_max_client = atoi(q);
                        if (BBS_max_client <= 0 || BBS_max_client > MAX_CLIENT_LIMIT)
                        {
                                log_error("Ignore config bbs_max_client with incorrect value %d\n", BBS_max_client);
                                BBS_max_client = MAX_CLIENT_LIMIT;
                        }
                }
                else if (strcasecmp(p, "bbs_max_client_per_ip") == 0)
                {
                        BBS_max_client_per_ip = atoi(q);
                        if (BBS_max_client_per_ip <= 0 || BBS_max_client_per_ip > MAX_CLIENT_PER_IP_LIMIT)
                        {
                                log_error("Ignore config bbs_max_client with incorrect value %d\n", BBS_max_client_per_ip);
                                BBS_max_client_per_ip = MAX_CLIENT_PER_IP_LIMIT;
                        }
                }
                else if (strcasecmp(p, "bbs_max_user") == 0)
                {
                        BBS_max_user = atoi(q);
                        if (BBS_max_user <= 0 || BBS_max_user > BBS_MAX_USER_LIMIT)
                        {
                                log_error("Ignore config bbs_max_client with incorrect value %d\n", BBS_max_user);
                                BBS_max_user = BBS_MAX_USER_LIMIT;
                        }
                }
                else if (strcasecmp(p, "bbs_start_dt") == 0)
                {
                        y = strtok_r(q, "-", &saveptr);
                        m = strtok_r(NULL, "-", &saveptr);
                        d = strtok_r(NULL, "-", &saveptr);

                        if (y == NULL || m == NULL || d == NULL)
                        {
                                log_error("Ignore config bbs_start_dt with incorrect value\n");
                                continue;
                        }
                        snprintf(BBS_start_dt, sizeof(BBS_start_dt), "%4s年%2s月%2s日", y, m, d);
                }
                else if (strcasecmp(p, "db_host") == 0)
                {
                        strncpy(DB_host, q, sizeof(DB_host) - 1);
                        DB_host[sizeof(DB_host) - 1] = '\0';
                }
                else if (strcasecmp(p, "db_username") == 0)
                {
                        strncpy(DB_username, q, sizeof(DB_username) - 1);
                        DB_username[sizeof(DB_username) - 1] = '\0';
                }
                else if (strcasecmp(p, "db_password") == 0)
                {
                        strncpy(DB_password, q, sizeof(DB_password) - 1);
                        DB_password[sizeof(DB_password) - 1] = '\0';
                }
                else if (strcasecmp(p, "db_database") == 0)
                {
                        strncpy(DB_database, q, sizeof(DB_database) - 1);
                        DB_database[sizeof(DB_database) - 1] = '\0';
                }
                else if (strcasecmp(p, "db_timezone") == 0)
                {
                        strncpy(DB_timezone, q, sizeof(DB_timezone) - 1);
                        DB_timezone[sizeof(DB_timezone) - 1] = '\0';
                }
                else
                {
                        log_error("Unknown config %s = %s\n", p, q);
                }
        }

        fclose(fin);

        return 0;
}
1	/***************************************************************************
2	init.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 "database.h"
20	#include "init.h"
21	#include "io.h"
22	#include "log.h"
23	#include <signal.h>
24	#include <stdlib.h>
25	#include <string.h>
26	#include <unistd.h>
27	#include <sys/param.h>
28	#include <sys/stat.h>
29	#include <sys/types.h>
30
31	#define CONF_DELIM_WITH_SPACE " \t\r\n"
32
33	int init_daemon(void)
34	{
35	int pid;
36
37	pid = fork();
38
39	if (pid > 0) // Parent process
40	{
41	_exit(0);
42	}
43	else if (pid < 0) // error
44	{
45	_exit(pid);
46	}
47
48	// Child process
49	setsid();
50
51	pid = fork();
52
53	if (pid > 0) // Parent process
54	{
55	_exit(0);
56	}
57	else if (pid < 0) // error
58	{
59	_exit(pid);
60	}
61
62	// Child process
63	umask(022);
64
65	return 0;
66	}
67
68	int load_conf(const char *conf_file)
69	{
70	char buffer[LINE_BUFFER_LEN];
71	char *saveptr = NULL;
72	char p, q, *r;
73	char y, m, *d;
74	FILE *fin;
75
76	// Load configuration
77	if ((fin = fopen(conf_file, "r")) == NULL)
78	{
79	log_error("Open %s failed", conf_file);
80	return -1;
81	}
82
83	while (fgets(buffer, sizeof(buffer), fin) != NULL)
84	{
85	p = strtok_r(buffer, CONF_DELIM_WITH_SPACE, &saveptr);
86	if (p == NULL) // Blank line
87	{
88	continue;
89	}
90
91	if (p == '#' \|\| p == '\r' \|\| *p == '\n') // Comment or blank line
92	{
93	continue;
94	}
95
96	q = strtok_r(NULL, CONF_DELIM_WITH_SPACE, &saveptr);
97	if (q == NULL) // Empty value
98	{
99	log_error("Skip empty value of config item: %s\n", p);
100	continue;
101	}
102
103	// Check syntax
104	r = strtok_r(NULL, CONF_DELIM_WITH_SPACE, &saveptr);
105	if (r != NULL && r[0] != '#')
106	{
107	log_error("Skip config line with extra value %s = %s %s\n", p, q, r);
108	continue;
109	}
110
111	if (strcasecmp(p, "bbs_id") == 0)
112	{
113	strncpy(BBS_id, q, sizeof(BBS_id) - 1);
114	BBS_id[sizeof(BBS_id) - 1] = '\0';
115	}
116	else if (strcasecmp(p, "bbs_name") == 0)
117	{
118	strncpy(BBS_name, q, sizeof(BBS_name) - 1);
119	BBS_name[sizeof(BBS_name) - 1] = '\0';
120	}
121	else if (strcasecmp(p, "bbs_server") == 0)
122	{
123	strncpy(BBS_server, q, sizeof(BBS_server) - 1);
124	BBS_server[sizeof(BBS_server) - 1] = '\0';
125	}
126	else if (strcasecmp(p, "bbs_address") == 0)
127	{
128	strncpy(BBS_address, q, sizeof(BBS_address) - 1);
129	BBS_address[sizeof(BBS_address) - 1] = '\0';
130	}
131	else if (strcasecmp(p, "bbs_port") == 0)
132	{
133	BBS_port[0] = (in_port_t)atoi(q);
134	}
135	else if (strcasecmp(p, "bbs_ssh_port") == 0)
136	{
137	BBS_port[1] = (in_port_t)atoi(q);
138	}
139	else if (strcasecmp(p, "bbs_max_client") == 0)
140	{
141	BBS_max_client = atoi(q);
142	if (BBS_max_client <= 0 \|\| BBS_max_client > MAX_CLIENT_LIMIT)
143	{
144	log_error("Ignore config bbs_max_client with incorrect value %d\n", BBS_max_client);
145	BBS_max_client = MAX_CLIENT_LIMIT;
146	}
147	}
148	else if (strcasecmp(p, "bbs_max_client_per_ip") == 0)
149	{
150	BBS_max_client_per_ip = atoi(q);
151	if (BBS_max_client_per_ip <= 0 \|\| BBS_max_client_per_ip > MAX_CLIENT_PER_IP_LIMIT)
152	{
153	log_error("Ignore config bbs_max_client with incorrect value %d\n", BBS_max_client_per_ip);
154	BBS_max_client_per_ip = MAX_CLIENT_PER_IP_LIMIT;
155	}
156	}
157	else if (strcasecmp(p, "bbs_max_user") == 0)
158	{
159	BBS_max_user = atoi(q);
160	if (BBS_max_user <= 0 \|\| BBS_max_user > BBS_MAX_USER_LIMIT)
161	{
162	log_error("Ignore config bbs_max_client with incorrect value %d\n", BBS_max_user);
163	BBS_max_user = BBS_MAX_USER_LIMIT;
164	}
165	}
166	else if (strcasecmp(p, "bbs_start_dt") == 0)
167	{
168	y = strtok_r(q, "-", &saveptr);
169	m = strtok_r(NULL, "-", &saveptr);
170	d = strtok_r(NULL, "-", &saveptr);
171
172	if (y == NULL \|\| m == NULL \|\| d == NULL)
173	{
174	log_error("Ignore config bbs_start_dt with incorrect value\n");
175	continue;
176	}
177	snprintf(BBS_start_dt, sizeof(BBS_start_dt), "%4s年%2s月%2s日", y, m, d);
178	}
179	else if (strcasecmp(p, "db_host") == 0)
180	{
181	strncpy(DB_host, q, sizeof(DB_host) - 1);
182	DB_host[sizeof(DB_host) - 1] = '\0';
183	}
184	else if (strcasecmp(p, "db_username") == 0)
185	{
186	strncpy(DB_username, q, sizeof(DB_username) - 1);
187	DB_username[sizeof(DB_username) - 1] = '\0';
188	}
189	else if (strcasecmp(p, "db_password") == 0)
190	{
191	strncpy(DB_password, q, sizeof(DB_password) - 1);
192	DB_password[sizeof(DB_password) - 1] = '\0';
193	}
194	else if (strcasecmp(p, "db_database") == 0)
195	{
196	strncpy(DB_database, q, sizeof(DB_database) - 1);
197	DB_database[sizeof(DB_database) - 1] = '\0';
198	}
199	else if (strcasecmp(p, "db_timezone") == 0)
200	{
201	strncpy(DB_timezone, q, sizeof(DB_timezone) - 1);
202	DB_timezone[sizeof(DB_timezone) - 1] = '\0';
203	}
204	else
205	{
206	log_error("Unknown config %s = %s\n", p, q);
207	}
208	}
209
210	fclose(fin);
211
212	return 0;
213	}
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