lbbs/src/net_server.c

/***************************************************************************
                                                  net_server.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.                                   *
 *                                                                         *
 ***************************************************************************/

#define _XOPEN_SOURCE 500
#define _POSIX_C_SOURCE 200809L
#define _GNU_SOURCE

#include "net_server.h"
#include "common.h"
#include "log.h"
#include "io.h"
#include "init.h"
#include "fork.h"
#include "menu.h"
#include "file_loader.h"
#include "section_list_loader.h"
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>
#include <sys/syscall.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <sys/epoll.h>
#include <arpa/inet.h>
#include <systemd/sd-daemon.h>

struct process_sockaddr_t
{
        pid_t pid;
        in_addr_t s_addr;
};
typedef struct process_sockaddr_t PROCESS_SOCKADDR;

static PROCESS_SOCKADDR process_sockaddr_pool[MAX_CLIENTS_LIMIT];

int net_server(const char *hostaddr, in_port_t port)
{
        unsigned int namelen;
        int ret;
        int flags;
        struct sockaddr_in sin;
        struct epoll_event ev, events[MAX_EVENTS];
        int nfds, epollfd;
        siginfo_t siginfo;
        int sd_notify_stopping = 0;
        MENU_SET *p_bbs_menu_new;
        int i, j;
        pid_t pid;

        socket_server = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);

        if (socket_server < 0)
        {
                log_error("Create socket failed\n");
                return -1;
        }

        sin.sin_family = AF_INET;
        sin.sin_addr.s_addr = (hostaddr[0] != '\0' ? inet_addr(hostaddr) : INADDR_ANY);
        sin.sin_port = htons(port);

        // Reuse address and port
        flags = 1;
        if (setsockopt(socket_server, SOL_SOCKET, SO_REUSEADDR, &flags, sizeof(flags)) < 0)
        {
                log_error("setsockopt SO_REUSEADDR error (%d)\n", errno);
        }
        if (setsockopt(socket_server, SOL_SOCKET, SO_REUSEPORT, &flags, sizeof(flags)) < 0)
        {
                log_error("setsockopt SO_REUSEPORT error (%d)\n", errno);
        }

        if (bind(socket_server, (struct sockaddr *)&sin, sizeof(sin)) < 0)
        {
                log_error("Bind address %s:%u failed (%d)\n",
                                  inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), errno);
                return -1;
        }

        if (listen(socket_server, 10) < 0)
        {
                log_error("Socket listen failed (%d)\n", errno);
                return -1;
        }

        strncpy(hostaddr_server, inet_ntoa(sin.sin_addr), sizeof(hostaddr_server) - 1);
        hostaddr_server[sizeof(hostaddr_server) - 1] = '\0';

        port_server = ntohs(sin.sin_port);
        namelen = sizeof(sin);

        log_std("Listening at %s:%d\n", hostaddr_server, port_server);

        epollfd = epoll_create1(0);
        if (epollfd < 0)
        {
                log_error("epoll_create1() error (%d)\n", errno);
                return -1;
        }

        ev.events = EPOLLIN;
        ev.data.fd = socket_server;
        if (epoll_ctl(epollfd, EPOLL_CTL_ADD, socket_server, &ev) == -1)
        {
                log_error("epoll_ctl(socket_server) error (%d)\n", errno);
                if (close(epollfd) < 0)
                {
                        log_error("close(epoll) error (%d)\n");
                }
                return -1;
        }

        flags = fcntl(socket_server, F_GETFL, 0);
        fcntl(socket_server, F_SETFL, flags | O_NONBLOCK);

        // Startup complete
        sd_notifyf(0, "READY=1\n"
                                  "STATUS=Listening at %s:%d\n"
                                  "MAINPID=%d",
                           hostaddr_server, port_server, getpid());

        while (!SYS_server_exit || SYS_child_process_count > 0)
        {
                if (SYS_server_exit && !sd_notify_stopping)
                {
                        sd_notify(0, "STOPPING=1");
                        sd_notify_stopping = 1;
                }

                while ((SYS_child_exit || SYS_server_exit) && SYS_child_process_count > 0)
                {
                        SYS_child_exit = 0;

                        siginfo.si_pid = 0;
                        ret = waitid(P_ALL, 0, &siginfo, WEXITED | WNOHANG);
                        if (ret == 0 && siginfo.si_pid > 0)
                        {
                                SYS_child_exit = 1; // Retry waitid

                                SYS_child_process_count--;
                                log_std("Child process (%d) exited\n", siginfo.si_pid);

                                i = 0;
                                for (; i < BBS_max_client; i++)
                                {
                                        if (process_sockaddr_pool[i].pid == siginfo.si_pid)
                                        {
                                                process_sockaddr_pool[i].pid = 0;
                                                break;
                                        }
                                }
                                if (i >= BBS_max_client)
                                {
                                        log_error("Child process (%d) not found in process sockaddr pool\n", siginfo.si_pid);
                                }
                        }
                        else if (ret == 0)
                        {
                                break;
                        }
                        else if (ret < 0)
                        {
                                log_error("Error in waitid: %d\n", errno);
                                break;
                        }
                }

                if (SYS_server_exit && !SYS_child_exit && SYS_child_process_count > 0)
                {
                        log_std("Notify %d child process to exit\n", SYS_child_process_count);
                        if (kill(0, SIGTERM) < 0)
                        {
                                log_error("Send SIGTERM signal failed (%d)\n", errno);
                        }

                        sd_notifyf(0, "STATUS=Waiting for %d child process to exit", SYS_child_process_count);
                }

                if (SYS_conf_reload && !SYS_server_exit)
                {
                        SYS_conf_reload = 0;
                        sd_notify(0, "RELOADING=1");

                        // Reload configuration
                        if (load_conf(CONF_BBSD) < 0)
                        {
                                log_error("Reload conf failed\n");
                        }

                        p_bbs_menu_new = calloc(1, sizeof(MENU_SET));
                        if (p_bbs_menu_new == NULL)
                        {
                                log_error("OOM: calloc(MENU_SET)\n");
                        }
                        else if (load_menu(p_bbs_menu_new, CONF_MENU) < 0)
                        {
                                unload_menu(p_bbs_menu_new);
                                free(p_bbs_menu_new);
                                p_bbs_menu_new = NULL;

                                log_error("Reload menu failed\n");
                        }
                        else
                        {
                                unload_menu(p_bbs_menu);
                                free(p_bbs_menu);

                                p_bbs_menu = p_bbs_menu_new;
                                p_bbs_menu_new = NULL;

                                log_std("Reload menu successfully\n");
                        }

                        sd_notify(0, "READY=1");
                }

                if (SYS_data_file_reload && !SYS_server_exit)
                {
                        SYS_data_file_reload = 0;
                        sd_notify(0, "RELOADING=1");

                        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]);
                                }
                        }

                        log_std("Reload data files successfully\n");
                        sd_notify(0, "READY=1");
                }

                if (SYS_section_list_reload && !SYS_server_exit)
                {
                        SYS_section_list_reload = 0;

                        if (section_list_loader_reload() < 0)
                        {
                                log_error("ksection_list_loader_reload() failed\n");
                        }
                }

                nfds = epoll_wait(epollfd, events, MAX_EVENTS, 100); // 0.1 second

                if (nfds < 0)
                {
                        if (errno != EINTR)
                        {
                                log_error("epoll_wait() error (%d)\n", errno);
                                break;
                        }
                        continue;
                }

                // Stop accept new connection on exit
                if (SYS_server_exit)
                {
                        continue;
                }

                for (int i = 0; i < nfds; i++)
                {
                        if (events[i].data.fd == socket_server)
                        {
                                while (!SYS_server_exit) // Accept all incoming connections until error
                                {
                                        socket_client = accept(socket_server, (struct sockaddr *)&sin, &namelen);
                                        if (socket_client < 0)
                                        {
                                                if (errno == EAGAIN || errno == EWOULDBLOCK)
                                                {
                                                        break;
                                                }
                                                else if (errno == EINTR)
                                                {
                                                        continue;
                                                }
                                                else
                                                {
                                                        log_error("accept(socket_server) error (%d)\n", errno);
                                                        break;
                                                }
                                        }

                                        strncpy(hostaddr_client, inet_ntoa(sin.sin_addr), sizeof(hostaddr_client) - 1);
                                        hostaddr_client[sizeof(hostaddr_client) - 1] = '\0';

                                        port_client = ntohs(sin.sin_port);

                                        log_std("Accept connection from %s:%d\n", hostaddr_client, port_client);

                                        if (SYS_child_process_count - 1 < BBS_max_client)
                                        {
                                                j = 0;
                                                for (i = 0; i < BBS_max_client; i++)
                                                {
                                                        if (process_sockaddr_pool[i].pid != 0 && process_sockaddr_pool[i].s_addr == sin.sin_addr.s_addr)
                                                        {
                                                                j++;
                                                                if (j >= BBS_max_client_per_ip)
                                                                {
                                                                        log_error("Too many client connections (%d) from %s\n", j, hostaddr_client);
                                                                        break;
                                                                }
                                                        }
                                                }

                                                if (j < BBS_max_client_per_ip)
                                                {
                                                        if ((pid = fork_server()) < 0)
                                                        {
                                                                log_error("fork_server() error\n");
                                                        }
                                                        else if (pid > 0)
                                                        {
                                                                i = 0;
                                                                for (; i < BBS_max_client; i++)
                                                                {
                                                                        if (process_sockaddr_pool[i].pid == 0)
                                                                        {
                                                                                break;
                                                                        }
                                                                }

                                                                if (i >= BBS_max_client)
                                                                {
                                                                        log_error("Process sockaddr pool depleted\n");
                                                                }
                                                                else
                                                                {
                                                                        process_sockaddr_pool[i].pid = pid;
                                                                        process_sockaddr_pool[i].s_addr = sin.sin_addr.s_addr;
                                                                }
                                                        }
                                                }
                                        }
                                        else
                                        {
                                                log_error("Rejected client connection over limit (%d)\n", SYS_child_process_count - 1);
                                        }

                                        if (close(socket_client) == -1)
                                        {
                                                log_error("close(socket_lient) error (%d)\n", errno);
                                        }
                                }
                        }
                }
        }

        if (close(epollfd) < 0)
        {
                log_error("close(epoll) error (%d)\n");
        }

        fcntl(socket_server, F_SETFL, flags);

        if (close(socket_server) == -1)
        {
                log_error("Close server socket failed\n");
        }

        return 0;
}
1	sysadm	1.1	/***************************************************************************
2	sysadm	1.13	net_server.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	1.19	#define _XOPEN_SOURCE 500
18			#define _POSIX_C_SOURCE 200809L
19			#define _GNU_SOURCE
20
21	sysadm	1.14	#include "net_server.h"
22	sysadm	1.1	#include "common.h"
23	sysadm	1.14	#include "log.h"
24	sysadm	1.7	#include "io.h"
25	sysadm	1.44	#include "init.h"
26	sysadm	1.14	#include "fork.h"
27	sysadm	1.19	#include "menu.h"
28	sysadm	1.35	#include "file_loader.h"
29	sysadm	1.42	#include "section_list_loader.h"
30	sysadm	1.20	#include <errno.h>
31			#include <fcntl.h>
32			#include <string.h>
33	sysadm	1.19	#include <signal.h>
34	sysadm	1.20	#include <stdlib.h>
35	sysadm	1.19	#include <unistd.h>
36			#include <sys/syscall.h>
37	sysadm	1.7	#include <sys/socket.h>
38	sysadm	1.19	#include <sys/wait.h>
39	sysadm	1.25	#include <sys/epoll.h>
40	sysadm	1.9	#include <arpa/inet.h>
41	sysadm	1.31	#include <systemd/sd-daemon.h>
42	sysadm	1.3
43	sysadm	1.44	struct process_sockaddr_t
44			{
45			pid_t pid;
46			in_addr_t s_addr;
47			};
48			typedef struct process_sockaddr_t PROCESS_SOCKADDR;
49
50			static PROCESS_SOCKADDR process_sockaddr_pool[MAX_CLIENTS_LIMIT];
51
52	sysadm	1.17	int net_server(const char *hostaddr, in_port_t port)
53	sysadm	1.1	{
54	sysadm	1.15	unsigned int namelen;
55	sysadm	1.19	int ret;
56	sysadm	1.15	int flags;
57	sysadm	1.13	struct sockaddr_in sin;
58	sysadm	1.25	struct epoll_event ev, events[MAX_EVENTS];
59			int nfds, epollfd;
60	sysadm	1.19	siginfo_t siginfo;
61	sysadm	1.31	int sd_notify_stopping = 0;
62	sysadm	1.34	MENU_SET *p_bbs_menu_new;
63	sysadm	1.44	int i, j;
64			pid_t pid;
65	sysadm	1.10
66	sysadm	1.13	socket_server = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
67	sysadm	1.10
68	sysadm	1.13	if (socket_server < 0)
69			{
70			log_error("Create socket failed\n");
71	sysadm	1.27	return -1;
72	sysadm	1.13	}
73	sysadm	1.10
74	sysadm	1.13	sin.sin_family = AF_INET;
75	sysadm	1.23	sin.sin_addr.s_addr = (hostaddr[0] != '\0' ? inet_addr(hostaddr) : INADDR_ANY);
76	sysadm	1.13	sin.sin_port = htons(port);
77
78	sysadm	1.23	// Reuse address and port
79			flags = 1;
80			if (setsockopt(socket_server, SOL_SOCKET, SO_REUSEADDR, &flags, sizeof(flags)) < 0)
81			{
82			log_error("setsockopt SO_REUSEADDR error (%d)\n", errno);
83			}
84			if (setsockopt(socket_server, SOL_SOCKET, SO_REUSEPORT, &flags, sizeof(flags)) < 0)
85			{
86			log_error("setsockopt SO_REUSEPORT error (%d)\n", errno);
87			}
88
89	sysadm	1.13	if (bind(socket_server, (struct sockaddr *)&sin, sizeof(sin)) < 0)
90	sysadm	1.10	{
91	sysadm	1.23	log_error("Bind address %s:%u failed (%d)\n",
92			inet_ntoa(sin.sin_addr), ntohs(sin.sin_port), errno);
93	sysadm	1.27	return -1;
94	sysadm	1.10	}
95
96	sysadm	1.13	if (listen(socket_server, 10) < 0)
97	sysadm	1.10	{
98	sysadm	1.23	log_error("Socket listen failed (%d)\n", errno);
99	sysadm	1.27	return -1;
100	sysadm	1.10	}
101	sysadm	1.1
102	sysadm	1.16	strncpy(hostaddr_server, inet_ntoa(sin.sin_addr), sizeof(hostaddr_server) - 1);
103			hostaddr_server[sizeof(hostaddr_server) - 1] = '\0';
104
105	sysadm	1.13	port_server = ntohs(sin.sin_port);
106	sysadm	1.19	namelen = sizeof(sin);
107	sysadm	1.13
108			log_std("Listening at %s:%d\n", hostaddr_server, port_server);
109
110	sysadm	1.25	epollfd = epoll_create1(0);
111			if (epollfd < 0)
112			{
113			log_error("epoll_create1() error (%d)\n", errno);
114			return -1;
115			}
116
117	sysadm	1.28	ev.events = EPOLLIN;
118	sysadm	1.25	ev.data.fd = socket_server;
119			if (epoll_ctl(epollfd, EPOLL_CTL_ADD, socket_server, &ev) == -1)
120			{
121			log_error("epoll_ctl(socket_server) error (%d)\n", errno);
122	sysadm	1.30	if (close(epollfd) < 0)
123			{
124			log_error("close(epoll) error (%d)\n");
125			}
126	sysadm	1.25	return -1;
127			}
128
129			flags = fcntl(socket_server, F_GETFL, 0);
130			fcntl(socket_server, F_SETFL, flags \| O_NONBLOCK);
131
132	sysadm	1.31	// Startup complete
133			sd_notifyf(0, "READY=1\n"
134	sysadm	1.32	"STATUS=Listening at %s:%d\n"
135	sysadm	1.31	"MAINPID=%d",
136	sysadm	1.32	hostaddr_server, port_server, getpid());
137	sysadm	1.31
138	sysadm	1.19	while (!SYS_server_exit \|\| SYS_child_process_count > 0)
139	sysadm	1.13	{
140	sysadm	1.31	if (SYS_server_exit && !sd_notify_stopping)
141			{
142			sd_notify(0, "STOPPING=1");
143			sd_notify_stopping = 1;
144			}
145	sysadm	1.37
146	sysadm	1.22	while ((SYS_child_exit \|\| SYS_server_exit) && SYS_child_process_count > 0)
147	sysadm	1.19	{
148	sysadm	1.30	SYS_child_exit = 0;
149
150	sysadm	1.19	siginfo.si_pid = 0;
151			ret = waitid(P_ALL, 0, &siginfo, WEXITED \| WNOHANG);
152			if (ret == 0 && siginfo.si_pid > 0)
153			{
154	sysadm	1.30	SYS_child_exit = 1; // Retry waitid
155
156	sysadm	1.19	SYS_child_process_count--;
157			log_std("Child process (%d) exited\n", siginfo.si_pid);
158	sysadm	1.44
159			i = 0;
160			for (; i < BBS_max_client; i++)
161			{
162			if (process_sockaddr_pool[i].pid == siginfo.si_pid)
163			{
164			process_sockaddr_pool[i].pid = 0;
165			break;
166			}
167			}
168			if (i >= BBS_max_client)
169			{
170			log_error("Child process (%d) not found in process sockaddr pool\n", siginfo.si_pid);
171			}
172	sysadm	1.19	}
173			else if (ret == 0)
174			{
175			break;
176			}
177			else if (ret < 0)
178			{
179			log_error("Error in waitid: %d\n", errno);
180			break;
181			}
182			}
183
184	sysadm	1.22	if (SYS_server_exit && !SYS_child_exit && SYS_child_process_count > 0)
185	sysadm	1.21	{
186	sysadm	1.22	log_std("Notify %d child process to exit\n", SYS_child_process_count);
187	sysadm	1.21	if (kill(0, SIGTERM) < 0)
188			{
189			log_error("Send SIGTERM signal failed (%d)\n", errno);
190			}
191	sysadm	1.31
192			sd_notifyf(0, "STATUS=Waiting for %d child process to exit", SYS_child_process_count);
193	sysadm	1.21	}
194
195	sysadm	1.44	if (SYS_conf_reload && !SYS_server_exit)
196	sysadm	1.19	{
197	sysadm	1.44	SYS_conf_reload = 0;
198	sysadm	1.37	sd_notify(0, "RELOADING=1");
199	sysadm	1.30
200	sysadm	1.44	// Reload configuration
201			if (load_conf(CONF_BBSD) < 0)
202			{
203			log_error("Reload conf failed\n");
204			}
205
206	sysadm	1.34	p_bbs_menu_new = calloc(1, sizeof(MENU_SET));
207			if (p_bbs_menu_new == NULL)
208			{
209			log_error("OOM: calloc(MENU_SET)\n");
210			}
211			else if (load_menu(p_bbs_menu_new, CONF_MENU) < 0)
212			{
213			unload_menu(p_bbs_menu_new);
214			free(p_bbs_menu_new);
215	sysadm	1.38	p_bbs_menu_new = NULL;
216	sysadm	1.33
217	sysadm	1.19	log_error("Reload menu failed\n");
218			}
219			else
220			{
221	sysadm	1.34	unload_menu(p_bbs_menu);
222			free(p_bbs_menu);
223
224			p_bbs_menu = p_bbs_menu_new;
225			p_bbs_menu_new = NULL;
226
227	sysadm	1.19	log_std("Reload menu successfully\n");
228			}
229	sysadm	1.37
230			sd_notify(0, "READY=1");
231	sysadm	1.19	}
232
233	sysadm	1.35	if (SYS_data_file_reload && !SYS_server_exit)
234			{
235			SYS_data_file_reload = 0;
236	sysadm	1.37	sd_notify(0, "RELOADING=1");
237	sysadm	1.35
238			for (int i = 0; i < data_files_load_startup_count; i++)
239			{
240	sysadm	1.39	if (load_file(data_files_load_startup[i]) < 0)
241	sysadm	1.35	{
242			log_error("load_file_mmap(%s) error\n", data_files_load_startup[i]);
243			}
244			}
245
246			log_std("Reload data files successfully\n");
247	sysadm	1.37	sd_notify(0, "READY=1");
248	sysadm	1.35	}
249
250	sysadm	1.42	if (SYS_section_list_reload && !SYS_server_exit)
251			{
252			SYS_section_list_reload = 0;
253
254			if (section_list_loader_reload() < 0)
255			{
256			log_error("ksection_list_loader_reload() failed\n");
257			}
258			}
259
260	sysadm	1.25	nfds = epoll_wait(epollfd, events, MAX_EVENTS, 100); // 0.1 second
261	sysadm	1.22
262	sysadm	1.25	if (nfds < 0)
263	sysadm	1.19	{
264			if (errno != EINTR)
265			{
266	sysadm	1.25	log_error("epoll_wait() error (%d)\n", errno);
267			break;
268	sysadm	1.19	}
269			continue;
270			}
271	sysadm	1.13
272	sysadm	1.19	// Stop accept new connection on exit
273			if (SYS_server_exit)
274	sysadm	1.13	{
275			continue;
276			}
277
278	sysadm	1.25	for (int i = 0; i < nfds; i++)
279	sysadm	1.13	{
280	sysadm	1.25	if (events[i].data.fd == socket_server)
281	sysadm	1.13	{
282	sysadm	1.29	while (!SYS_server_exit) // Accept all incoming connections until error
283	sysadm	1.13	{
284	sysadm	1.25	socket_client = accept(socket_server, (struct sockaddr *)&sin, &namelen);
285			if (socket_client < 0)
286			{
287	sysadm	1.28	if (errno == EAGAIN \|\| errno == EWOULDBLOCK)
288			{
289			break;
290			}
291			else if (errno == EINTR)
292			{
293			continue;
294			}
295			else
296	sysadm	1.25	{
297			log_error("accept(socket_server) error (%d)\n", errno);
298	sysadm	1.28	break;
299	sysadm	1.25	}
300			}
301
302			strncpy(hostaddr_client, inet_ntoa(sin.sin_addr), sizeof(hostaddr_client) - 1);
303			hostaddr_client[sizeof(hostaddr_client) - 1] = '\0';
304
305			port_client = ntohs(sin.sin_port);
306
307			log_std("Accept connection from %s:%d\n", hostaddr_client, port_client);
308
309	sysadm	1.43	if (SYS_child_process_count - 1 < BBS_max_client)
310	sysadm	1.25	{
311	sysadm	1.44	j = 0;
312			for (i = 0; i < BBS_max_client; i++)
313			{
314			if (process_sockaddr_pool[i].pid != 0 && process_sockaddr_pool[i].s_addr == sin.sin_addr.s_addr)
315			{
316			j++;
317			if (j >= BBS_max_client_per_ip)
318			{
319			log_error("Too many client connections (%d) from %s\n", j, hostaddr_client);
320			break;
321			}
322			}
323			}
324
325			if (j < BBS_max_client_per_ip)
326	sysadm	1.43	{
327	sysadm	1.44	if ((pid = fork_server()) < 0)
328			{
329			log_error("fork_server() error\n");
330			}
331			else if (pid > 0)
332			{
333			i = 0;
334			for (; i < BBS_max_client; i++)
335			{
336			if (process_sockaddr_pool[i].pid == 0)
337			{
338			break;
339			}
340			}
341
342			if (i >= BBS_max_client)
343			{
344			log_error("Process sockaddr pool depleted\n");
345			}
346			else
347			{
348			process_sockaddr_pool[i].pid = pid;
349			process_sockaddr_pool[i].s_addr = sin.sin_addr.s_addr;
350			}
351			}
352	sysadm	1.43	}
353			}
354			else
355			{
356			log_error("Rejected client connection over limit (%d)\n", SYS_child_process_count - 1);
357	sysadm	1.25	}
358
359			if (close(socket_client) == -1)
360			{
361			log_error("close(socket_lient) error (%d)\n", errno);
362			}
363	sysadm	1.13	}
364			}
365			}
366	sysadm	1.25	}
367	sysadm	1.13
368	sysadm	1.30	if (close(epollfd) < 0)
369			{
370			log_error("close(epoll) error (%d)\n");
371			}
372
373	sysadm	1.25	fcntl(socket_server, F_SETFL, flags);
374	sysadm	1.13
375			if (close(socket_server) == -1)
376			{
377			log_error("Close server socket failed\n");
378			}
379	sysadm	1.7
380	sysadm	1.13	return 0;
381	sysadm	1.1	}
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