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	sysadm	1.1	/***************************************************************************
2	sysadm	1.11	init.c - description
3			-------------------
4	sysadm	1.18	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	1.18	* 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	1.1	#include "common.h"
19	sysadm	1.28	#include "database.h"
20			#include "init.h"
21			#include "io.h"
22	sysadm	1.13	#include "log.h"
23	sysadm	1.28	#include <signal.h>
24			#include <stdlib.h>
25	sysadm	1.13	#include <string.h>
26	sysadm	1.25	#include <unistd.h>
27	sysadm	1.6	#include <sys/param.h>
28	sysadm	1.28	#include <sys/stat.h>
29	sysadm	1.6	#include <sys/types.h>
30	sysadm	1.1
31	sysadm	1.22	#define CONF_DELIM_WITH_SPACE " \t\r\n"
32
33	sysadm	1.19	int init_daemon(void)
34	sysadm	1.1	{
35	sysadm	1.11	int pid;
36	sysadm	1.1
37	sysadm	1.15	pid = fork();
38
39	sysadm	1.20	if (pid > 0) // Parent process
40	sysadm	1.15	{
41	sysadm	1.20	_exit(0);
42			}
43			else if (pid < 0) // error
44			{
45			_exit(pid);
46	sysadm	1.15	}
47	sysadm	1.1
48	sysadm	1.15	// Child process
49	sysadm	1.11	setsid();
50	sysadm	1.1
51	sysadm	1.15	pid = fork();
52
53	sysadm	1.20	if (pid > 0) // Parent process
54			{
55			_exit(0);
56			}
57			else if (pid < 0) // error
58	sysadm	1.15	{
59	sysadm	1.20	_exit(pid);
60	sysadm	1.15	}
61	sysadm	1.1
62	sysadm	1.15	// Child process
63			umask(022);
64	sysadm	1.1
65	sysadm	1.19	return 0;
66	sysadm	1.1	}
67	sysadm	1.4
68	sysadm	1.11	int load_conf(const char *conf_file)
69	sysadm	1.4	{
70	sysadm	1.22	char buffer[LINE_BUFFER_LEN];
71			char *saveptr = NULL;
72			char p, q, *r;
73			char y, m, *d;
74			FILE *fin;
75	sysadm	1.4
76	sysadm	1.11	// 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	sysadm	1.22	while (fgets(buffer, sizeof(buffer), fin) != NULL)
84	sysadm	1.11	{
85	sysadm	1.22	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	sysadm	1.11	{
107	sysadm	1.22	log_error("Skip config line with extra value %s = %s %s\n", p, q, r);
108	sysadm	1.11	continue;
109			}
110	sysadm	1.22
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	sysadm	1.11	{
123	sysadm	1.22	strncpy(BBS_server, q, sizeof(BBS_server) - 1);
124			BBS_server[sizeof(BBS_server) - 1] = '\0';
125	sysadm	1.11	}
126	sysadm	1.22	else if (strcasecmp(p, "bbs_address") == 0)
127	sysadm	1.11	{
128	sysadm	1.22	strncpy(BBS_address, q, sizeof(BBS_address) - 1);
129			BBS_address[sizeof(BBS_address) - 1] = '\0';
130	sysadm	1.11	}
131	sysadm	1.22	else if (strcasecmp(p, "bbs_port") == 0)
132	sysadm	1.11	{
133	sysadm	1.24	BBS_port[0] = (in_port_t)atoi(q);
134	sysadm	1.11	}
135	sysadm	1.24	else if (strcasecmp(p, "bbs_ssh_port") == 0)
136	sysadm	1.11	{
137	sysadm	1.24	BBS_port[1] = (in_port_t)atoi(q);
138	sysadm	1.11	}
139	sysadm	1.22	else if (strcasecmp(p, "bbs_max_client") == 0)
140	sysadm	1.11	{
141	sysadm	1.22	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	sysadm	1.11	}
148	sysadm	1.22	else if (strcasecmp(p, "bbs_max_client_per_ip") == 0)
149	sysadm	1.11	{
150	sysadm	1.22	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	sysadm	1.21	{
153	sysadm	1.22	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	sysadm	1.21	}
156			}
157	sysadm	1.22	else if (strcasecmp(p, "bbs_max_user") == 0)
158	sysadm	1.21	{
159	sysadm	1.22	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	sysadm	1.11	}
166	sysadm	1.22	else if (strcasecmp(p, "bbs_start_dt") == 0)
167	sysadm	1.11	{
168	sysadm	1.22	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	sysadm	1.29	snprintf(BBS_start_dt, sizeof(BBS_start_dt), "%4s年%2s月%2s日", y, m, d);
178	sysadm	1.11	}
179	sysadm	1.22	else if (strcasecmp(p, "db_host") == 0)
180	sysadm	1.11	{
181	sysadm	1.22	strncpy(DB_host, q, sizeof(DB_host) - 1);
182			DB_host[sizeof(DB_host) - 1] = '\0';
183	sysadm	1.11	}
184	sysadm	1.22	else if (strcasecmp(p, "db_username") == 0)
185	sysadm	1.11	{
186	sysadm	1.22	strncpy(DB_username, q, sizeof(DB_username) - 1);
187			DB_username[sizeof(DB_username) - 1] = '\0';
188	sysadm	1.11	}
189	sysadm	1.22	else if (strcasecmp(p, "db_password") == 0)
190	sysadm	1.11	{
191	sysadm	1.22	strncpy(DB_password, q, sizeof(DB_password) - 1);
192			DB_password[sizeof(DB_password) - 1] = '\0';
193	sysadm	1.11	}
194	sysadm	1.22	else if (strcasecmp(p, "db_database") == 0)
195	sysadm	1.11	{
196	sysadm	1.22	strncpy(DB_database, q, sizeof(DB_database) - 1);
197			DB_database[sizeof(DB_database) - 1] = '\0';
198	sysadm	1.11	}
199	sysadm	1.22	else if (strcasecmp(p, "db_timezone") == 0)
200	sysadm	1.11	{
201	sysadm	1.22	strncpy(DB_timezone, q, sizeof(DB_timezone) - 1);
202			DB_timezone[sizeof(DB_timezone) - 1] = '\0';
203	sysadm	1.11	}
204	sysadm	1.22	else
205	sysadm	1.12	{
206	sysadm	1.22	log_error("Unknown config %s = %s\n", p, q);
207	sysadm	1.12	}
208	sysadm	1.5	}
209	sysadm	1.4
210	sysadm	1.11	fclose(fin);
211	sysadm	1.9
212	sysadm	1.11	return 0;
213	sysadm	1.4	}
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