int main(int argc, char **argv)
{
struct sockaddr_in peer;
char *hostname;
char *servicename;
int peerlen;
socket_t client_socket;
socket_t server_socket;
const int on = 1;
if (argc == 2) {
hostname = NULL;
servicename = argv[1];
} else if (argc == 3) {
hostname = argv[1];
servicename = argv[2];
} else {
error(1, errno, "count of parametrs mismatch\n");
}
server_socket = tcp_server(hostname, servicename);
do {
peerlen = sizeof(peer);
client_socket =
accept(server_socket, (struct sockaddr *) &peer, &peerlen);
if (client_socket < 0)
error(1, errno, "error function accept\n");
server(client_socket, &peer);
close_socket(client_socket);
} while (1);
close_socket(server_socket);
exit(0);
}
int do_srv_epoll(unsigned short port)
{
int epfd = epoll_create(1);
printf("epfd:%d\n",epfd);
if(epfd==-1)
{
perror("kqueue");
return -1;
}
int fd = tcp_server(port);
if(fd==-1)
{
perror("tcp_server");
return 1;
}
if(reg_epoll_r(epfd,fd,11)==-1)
{
perror("kevent");
return -1;
}
printf("Server Startupt at : %d\n",port);
for(;;)
{
if(wait_event(epfd,fd)==-1)
return -1;
}
return 0;
}
int main(int argc, const char *argv[])
{
if(signal(SIGCHLD, SIG_IGN) == SIG_ERR)
ERR_EXIT("signal child");
int listenfd = tcp_server("192.168.153.131", 8976);
while(1)
{
int peerfd = accept(listenfd, NULL, NULL);
if(peerfd == -1)
ERR_EXIT("accept");
printf("%s connected\n", get_tcp_info(peerfd));
// 直接传值可能会产生问题，因此我们从堆上开辟空间
int *pfd = (int *)malloc(sizeof(int));
*pfd = peerfd;
pthread_t tid;
if(pthread_create(&tid, NULL, thread_func, pfd))
{
free(pfd); //线程启动失败，避免内存泄露
}
}
close(listenfd);
return 0;
}
void
server_main(int ac, char **av)
{
int newsock, sock;
if (ac != 2) {
fprintf(stderr, "usage: %s -s\n", av[0]);
exit(1);
}
GO_AWAY;
signal(SIGCHLD, child);
sock = tcp_server(TCP_XACT, SOCKOPT_NONE);
for (;;) {
newsock = tcp_accept(sock, SOCKOPT_NONE);
switch (fork()) {
case -1:
perror("fork");
break;
case 0:
doserver(newsock);
exit(0);
default:
close(newsock);
break;
}
}
/* NOTREACHED */
}
void
server_main()
{
int data, newdata;
GO_AWAY;
data = tcp_server(TCP_DATA, SOCKOPT_WRITE|SOCKOPT_REUSE);
if (data < 0) {
perror("server socket creation");
exit(1);
}
signal(SIGCHLD, sigchld_wait_handler);
for ( ;; ) {
newdata = tcp_accept(data, SOCKOPT_WRITE);
switch (fork()) {
case -1:
perror("fork");
break;
case 0:
source(newdata);
exit(0);
default:
close(newdata);
break;
}
}
}
int link_wait(link_t * ld, int service)
{ int rc;
int sdnew;
if (ld->fStdio) return 0;
rc = tcp_init(SF_ZOMBIES);
if (rc < 0) return (-1);
rc = tcp_socket(0);
if (rc < 0) return (-1);
ld->fd = rc;
rc = tcp_server(ld->fd, service, 8, NULL);
if (rc < 0) return (-1);
while(1)
{ do
{ sdnew = tcp_accept(ld->fd);
} while(sdnew == (-1) && errno == EINTR);
if (sdnew < 0) break;
rc = tcp_forkclient(ld->fd, sdnew);
if (rc == 0) // child
{ ld->fd = sdnew;
break;
}
}
return 0;
}
/* Main */
int main(int argc, char **argv)
{
/* Setup main */
setbuf(stdout, NULL);
signal(SIGINT, on_sigint);
parse(argc, argv);
if ((epoll = epoll_create(1)) < 0)
error("Error creating epoll");
/* Setup initial peers */
bc_client(&bc, BC_PORT);
mc_client(&mc, MC_GROUP, MC_PORT);
tcp_server(&tcp, TCP_HOST, TCP_PORT);
web_server(&web, WEB_HOST, WEB_PORT);
/* Run main loop */
while (1) {
errno = 0;
int count = epoll_wait(epoll, events, MAX_EVENTS, MAX_WAIT);
if (errno == EINTR)
continue;
if (count < 0)
error("Error waiting for event");
for (int i = 0; i < count; i++) {
poll_t *poll = events[i].data.ptr;
poll->ready(poll->data);
}
}
return 0;
}
int main(int argc,char *argv[])
{
if(argc != 5)
{
printf("Incorrect format\n");
printf("\n Usage: %s <listenportno> <ip of server> <connectportno> <protocol>\n",argv[0]);
return 1;
}
char *listenportno = argv[1];
char *connectportno = argv[3];
char *ip = argv[2];
if(strcmp(argv[3],"udp")==0)
isudpset = 1;
else
isudpset = 0;
pid_t pid;
pid = fork();
if(pid == 0)
{
if(isudpset)
udp_server(listenportno);
else
tcp_server(listenportno);
}
else if(pid > 0)
{
if(isudpset)
udp_client(ip,connectportno);
else
tcp_client(ip,connectportno);
}
return 0;
}
int main(int argc, char *argv[])
{
int listenfd, clientfd;
char ch;
int port_flag = 0;
char *port = NULL;
while ((ch = getopt(argc, argv, "p:")) != -1)
{
switch (ch)
{
case 'p':
port = optarg;
printf("port is %s\n", port);
port_flag = 1;
break;
case '?':
fprintf(stderr, "Unknown command opt: %c\n", (char)optopt);
break;
}
}
if (!port_flag)
{
fprintf(stderr, "usage: %s <port>\n", argv[0]);
exit(EXIT_FAILURE);
}
// start listen
signal(SIGCHLD, SIG_IGN);
pid_t pid;
listenfd = tcp_server(NULL, atoi(port));
while (1)
{
if ((clientfd = accept(listenfd, NULL, NULL)) < 0)
{
bug("listenfd %d clientfd %d\n", listenfd, clientfd);
err_sys("accept");
}
pid = fork();
if (pid < 0)
err_sys("fork");
if (pid == 0) // in child proces
{
close(listenfd);
doit(clientfd);
exit(EXIT_SUCCESS);
}
else if (pid > 0) // in parent process
{
close(clientfd);
}
}
exit(EXIT_SUCCESS);
}
int main(int argc, char **argv)
{
if (argc < 3 || sscanf(argv[1], "%d", &argc) != 1 || access(argv[2], F_OK) == -1) {
printf("Usage: %s [port] [sock name]\n", *argv);
return 0;
}
tcp_server(argv[1], 10, handler, argv[2], strlen(argv[2]) + 1);
return 0;
}
int
main(int ac, char **av)
{
int i, prog;
#ifdef sgi
int ncpus = sysmp(MP_NPROCS);
#endif
for (i = 1; i < ac; ++i) {
if (av[i][0] != '-') {
break;
}
switch (av[i][1]) {
case 'D': Dflg = 1; break; /* Allow directories */
case 'd': dflg = 1; break; /* debugging */
case 'f': fflg = atoi(&av[i][2]);
break; /* # of threads */
case 'l': lflg = 1; break; /* logging */
case 'n': nflg = 1; break; /* fake file i/o */
case 'z': zflg = 1; break; /* all files are 0 size */
default:
fprintf(stderr, "Barf.\n");
exit(1);
}
}
if (getenv("DOCROOT")) {
if (chdir(getenv("DOCROOT")) == -1) {
perror(getenv("DOCROOT"));
exit(1);
}
}
if (atoi(av[ac - 1]) != 0) {
prog = -atoi(av[ac - 1]);
} else {
prog = -80;
}
/*
* Steve - why is this here?
*/
signal(SIGPIPE, SIG_IGN);
data = tcp_server(prog, SOCKOPT_REUSE);
bufs[0] = valloc(XFERSIZE);
bufs[1] = valloc(XFERSIZE);
bufs[2] = valloc(XFERSIZE);
logfile = open(LOGFILE, O_CREAT|O_APPEND|O_WRONLY, 0666);
signal(SIGINT, die);
signal(SIGHUP, die);
signal(SIGTERM, die);
for (i = 1; i < fflg; ++i) {
if (fork() <= 0) {
break;
}
}
handle_scheduler(i, 0, 0);
worker();
return(0);
}
int main(int argc,char **argv)
{
struct sockaddr_in peer;
SOCKET s;
SOCKET s1;
int peerlen = sizeof(peer);
int n;
char buf[10];
INIT();
if(argc == 2)
{
s = tcp_server(NULL,argv[1]);
}
else
{
s = tcp_server(argv[1],argv[2]);
}
s1 = accept(s,(struct sockaddr*)&peer,(socklen_t *)&peerlen);
if(!isvalidsock(s1))
{
error(1,errno,"accept failed");
}
for(;;)
{
n = readvrec(s1,buf,sizeof(buf));
if(n < 0)
{
error(0,errno,"readvrec returned error");
}
else if(n == 0)
{
error(1,0,"client disconnected\n");
}
else
{
write(1,buf,n);
}
}
EXIT(0);
}
int
main(int argc, char *argv[])
{
pid_t child_pid, parent_pid;
struct sockaddr_in sin;
int listen_fd;
u_short port;
socklen_t len;
listen_fd = socket(PF_INET, SOCK_STREAM, 0);
if (listen_fd < 0)
err(-1, "socket");
/*
* We use the loopback, but let the kernel select a port for the
* server socket.
*/
bzero(&sin, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_len = sizeof(sin);
sin.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
if (bind(listen_fd, (struct sockaddr *)&sin, sizeof(sin)) < 0)
err(-1, "bind");
if (listen(listen_fd, -1) < 0)
err(-1, "listen");
/*
* Query the port so that the client can use it.
*/
bzero(&sin, sizeof(sin));
sin.sin_family = AF_INET;
sin.sin_len = sizeof(sin);
len = sizeof(sin);
if (getsockname(listen_fd, (struct sockaddr *)&sin, &len) < 0)
err(-1, "getsockname");
port = sin.sin_port;
printf("Using port %d\n", ntohs(port));
if (signal(SIGCHLD, SIG_IGN) == SIG_ERR)
err(-1, "signal");
parent_pid = getpid();
child_pid = fork();
if (child_pid < 0)
err(-1, "fork");
if (child_pid == 0) {
child_pid = getpid();
tcp_server(parent_pid, listen_fd);
} else
tcp_client(child_pid, port);
return (0);
}
void
server_main()
{
int newsock, sock;
GO_AWAY;
signal(SIGCHLD, sigchld_wait_handler);
sock = tcp_server(TCP_XACT, SOCKOPT_REUSE);
for (;;) {
newsock = tcp_accept(sock, SOCKOPT_NONE);
#ifdef CONFIG_NOMMU
switch (vfork()) {
#else
switch (fork()) {
#endif
case -1:
perror("fork");
break;
case 0:
doserver(newsock);
#ifdef CONFIG_NOMMU
_exit(0);
#else
exit(0);
#endif
default:
close(newsock);
break;
}
}
/* NOTREACHED */
}
void
doserver(int sock)
{
int n;
if (read(sock, &n, sizeof(int)) == sizeof(int)) {
int msize = ntohl(n);
char* buf = (char*)malloc(msize);
for (n = 0; read(sock, buf, msize) > 0; n++) {
write(sock, buf, msize);
}
free(buf);
} else {
/*
* A connection with no data means shut down.
*/
tcp_done(TCP_XACT);
kill(getppid(), SIGTERM);
exit(0);
}
}
int main(int argc, char const *argv[])
{
check_permission();
setup_signal_chld();
parseconf_load_file("ftpserver.conf");
print_conf();
init_hash();
//创建一个监听fd
int listenfd = tcp_server(tunable_listen_address, tunable_listen_port);
pid_t pid;
session_t sess;
session_init(&sess);
p_sess = &sess; //配置全局变量
while(1)
{
struct sockaddr_in addr;
int peerfd = accept_timeout(listenfd, &addr, tunable_accept_timeout);
if(peerfd == -1 && errno == ETIMEDOUT)
continue;
else if(peerfd == -1)
ERR_EXIT("accept_timeout");
//获取ip地址，并在hash中添加一条记录
uint32_t ip = addr.sin_addr.s_addr;
sess.ip = ip;
add_clients_to_hash(&sess, ip);
if((pid = fork()) == -1)
ERR_EXIT("fork");
else if(pid == 0)
{
close(listenfd);
sess.peerfd = peerfd;
limit_num_clients(&sess);
session_begin(&sess);
exit(EXIT_SUCCESS);
}
else
{
//pid_to_ip
add_pid_ip_to_hash(pid, ip);
close(peerfd);
}
}
return 0;
}
int main(int argc, char *argv[])
{
if (getuid()) {
fprintf(stderr, "the ftpserver must started by root\n");
exit(EXIT_FAILURE);
}
if (signal(SIGCHLD, handle_sigchld) == SIG_ERR)
ERR_EXIT("signal");
parse_load_file("ftpserver.conf");
printf("parse_load_file success\n");
// printconfig();
ip_to_clients = hash_alloc(256, hash_func);
pid_to_ip = hash_alloc(256, hash_func);
int listenfd;
listenfd = tcp_server(listen_address, listen_port);
printf("tcp_server success, listenfd = %d\n", listenfd);
int connfd;
pid_t pid;
session_t sess;
while (1) {
struct sockaddr_in addr;
connfd = accept_time_out(listenfd, &addr, accept_timeout);
if (connfd == -1) {
// printf("don't has connection in %d seconds\n", accept_timeout);
continue;
}
uint32_t ip = addr.sin_addr.s_addr;
printf("connect success\n");
session_init(&sess);
num_of_clients++;
sess.curr_clients = num_of_clients;
sess.curr_ip_clients = add_ip_to_hash(ip_to_clients, ip);
sess.ip = ip;
p_sess = &sess;
pid = fork();
if (pid == -1) {
ERR_EXIT("fork error");
} else if (pid == 0) { //子进程
close(listenfd);
sess.peerfd = connfd;
session_begin(&sess); //建立一个会话
exit(EXIT_SUCCESS);
} else { //父进程
close(connfd);
hash_add_entry(pid_to_ip, &pid, sizeof(pid), &ip, sizeof(ip));
}
}
return 0;
}
int main(int argc, char *argv[])
{
if (argc == 1) {
tcp_server();
}
tcp_client(argv[1]);
return 0;
}
int main(int argc, char *argv[])
{
threadpool_t *pool = threadpool_init(20, 40); // 20个线程，40工作
int listenfd, clientfd;
char ch;
int port_flag = 0;
char *port = NULL;
while ((ch = getopt(argc, argv, "p:")) != -1)
{
switch (ch)
{
case 'p':
port = optarg;
printf("port is %s\n", port);
port_flag = 1;
break;
case '?':
fprintf(stderr, "Unknown command opt: %c\n", (char)optopt);
break;
}
}
if (!port_flag)
{
fprintf(stderr, "usage: %s <port>\n", argv[0]);
exit(EXIT_FAILURE);
}
/* 设置信号 */
signal(SIGPIPE, SIG_IGN);
listenfd = tcp_server(NULL, atoi(port));
while (1)
{
if ((clientfd = accept(listenfd, NULL, NULL)) < 0)
{
err_sys("accept");
}
/* 用线程池来处理连接 */
int *tmp_fd = malloc(sizeof(int));
*tmp_fd = clientfd;
threadpool_add_job(pool, doit, (void *)tmp_fd);
}
// threadpool_destory(pool);
// 这里应该接收ctrl c 信号，然后调用threadpool_destory函数
exit(EXIT_SUCCESS);
}
void
server(void* cookie)
{
int pid, rc;
state_t* state = (state_t*)cookie;
pid = getpid();
state->pid = 0;
if (state->fid_f == open_file) {
/* Create a temporary file for clients to open */
sprintf(state->fname, "lat_selectXXXXXX");
state->fid = mkstemp(state->fname);
if (state->fid <= 0) {
char buf[L_tmpnam+128];
sprintf(buf, "lat_select: Could not create temp file %s", state->fname);
perror(buf);
exit(1);
}
close(state->fid);
return;
}
/* Create a socket for clients to connect to */
state->sock = tcp_server(TCP_SELECT, SOCKOPT_REUSE);
if (state->sock <= 0) {
perror("lat_select: Could not open tcp server socket");
exit(1);
}
/* Start a server process to accept client connections */
switch(state->pid = fork()) {
case 0:
/* child server process */
while (pid == getppid()) {
int newsock = tcp_accept(state->sock, SOCKOPT_NONE);
rc = read(newsock, &state->fid, 1);
if (rc < 0)
DIE_PERROR("read failed");
close(newsock);
}
exit(0);
case -1:
/* error */
perror("lat_select::server(): fork() failed");
exit(1);
default:
break;
}
}
int main()
{
pid_t pid;
pid = fork();
if (pid == 0) {
tcp_server();
} else {
udp_server();
}
return 0;
}
static void privop_pasv_listen(session_t *sess)
{
sess->pasv_listen_fd = tcp_server(tunable_listen_address, 0);
struct sockaddr_in addr;
socklen_t addrlen = sizeof(addr);
if (getsockname(sess->pasv_listen_fd, (struct sockaddr *)&addr, &addrlen) < 0)
{
priv_sock_send_result(sess->parent_fd, PRIV_SOCK_RESULT_BAD);
ERR_EXIT("getsockname");
}
priv_sock_send_result(sess->parent_fd, PRIV_SOCK_RESULT_OK);
priv_sock_send_int(sess->parent_fd, (int)addr.sin_port);
}
int main(int argc, char **argv)
{
struct tm tm;
// pid = getpid();
init_abt_log(NULL, LOG_NOTICE);
if (sqlite3_config(SQLITE_CONFIG_MULTITHREAD) != SQLITE_OK) { //多线程模式防止并发锁
log_error(LOG_ERROR, "mutile thread error");
}
if (init_ds3231() < 0) {
log_error(LOG_EMERG, "init_ds3231");
return -1;
}
getTime(&tm);
if (cache_init() < 0) {
log_error(LOG_EMERG, "cache_init");
return -1;
}
if (init_at24c02b() < 0) {
log_error(LOG_NOTICE, "init_at24c02b");
}
g_dev_version = zigdev_version();
if (zigdev_init() < 0) {
log_error(LOG_NOTICE, "zigdev_init");
return -1;
}
signal_propose();
zigdev_test();
//zigadd_dev(0x256833, 1, 1, 0, 1);
tcp_server(NULL);
cache_destroy();
close_abt_log();
return 0;
}
static void privop_pasv_listen(session_t *sess)
{
char ip[20] = {0};
getlocalip(ip);
// 服务器 bind 的必须是随机端口，因此此时可能有多个nobody 进程在listen, 这样才不会冲突
sess->pasv_listen_fd = tcp_server(ip, 0);
struct sockaddr_in localaddr;
socklen_t addrlen = sizeof(localaddr);
if (getsockname(sess->pasv_listen_fd, (struct sockaddr *)&localaddr, &addrlen) < 0)
ERR_EXIT("getsockname");
unsigned short port = ntohs(localaddr.sin_port);
priv_sock_send_int(sess->nobody_fd, (int)port);
}
int main(int argc, const char *argv[])
{
int listenfd = tcp_server("192.168.1.26", 8976);
int peerfd = accept(listenfd, NULL, NULL);
printf("%s connected\n", get_tcp_info(peerfd));
do_service(peerfd);
close(peerfd);
close(listenfd);
return 0;
}
int
main(int argc, char *argv[])
{
pid_t child_pid, parent_pid;
if (signal(SIGCHLD, SIG_IGN) == SIG_ERR)
err(-1, "signal");
parent_pid = getpid();
child_pid = fork();
if (child_pid < 0)
err(-1, "fork");
if (child_pid == 0) {
child_pid = getpid();
tcp_server(parent_pid);
return (0);
} else
tcp_client(child_pid, 0);
(void)kill(child_pid, SIGTERM);
sleep(5);
parent_pid = getpid();
child_pid = fork();
if (child_pid < 0)
err(-1, "fork");
if (child_pid == 0) {
child_pid = getpid();
tcp_server(parent_pid);
return (0);
} else
tcp_client(child_pid, 1);
(void)kill(child_pid, SIGTERM);
return (0);
}
static void privop_pasv_listen(session_t *sess)
{
char ip[16];
getlocalip(ip);
sess->pasv_listen_fd = tcp_server(ip, 0);
struct sockaddr_in addr;
socklen_t addrlen = sizeof(addr);
if(getsockname(sess->pasv_listen_fd, (struct sockaddr *)&addr, &addrlen) < 0)
{
ERR_EXIT("getsockname");
}
unsigned short port = ntohs(addr.sin_port);
priv_sock_send_int(sess->parent_fd, (int)port);
}
/*************************************************************************
* \brief main
*************************************************************************/
int main(int argc, char* argv[])
{
pid_t pid;
pid = fork();
if (pid == 0)
{
tcp_server();
}
else
{
udp_server();
}
return 0;
}
void
server_main()
{
int newsock, sock;
char c ='1';
GO_AWAY;
sock = tcp_server(TCP_CONNECT, SOCKOPT_NONE|SOCKOPT_REUSE);
for (;;) {
newsock = tcp_accept(sock, SOCKOPT_NONE);
if (read(newsock, &c, 1) > 0) {
tcp_done(TCP_CONNECT);
exit(0);
}
close(newsock);
}
/* NOTREACHED */
}
int main( int argc, char **argv )
{
char *bp;
SOCKET s;
SOCKET s1;
INIT();
init_smb( TRUE );
s = tcp_server( NULL, argv[ 1 ] );
s1 = accept( s, NULL, NULL );
if ( !isvalidsock( s1 ) )
error( 1, errno, "accept failure" );
for ( ;; )
{
bp = smbrecv( s1 );
fputs( bp, stdout );
smbfree( bp );
}
EXIT( 0 );
}
int main( int argc, char **argv )
{
SOCKET s;
SOCKET s1;
int rc;
int i = 1;
int pkt[ 3 ];
INIT();
s = tcp_server( NULL, argv[ 1 ] );
s1 = accept( s, NULL, NULL );
if ( !isvalidsock( s1 ) )
error( 1, errno, "accept failure" );
for ( ;; )
{
rc = recv( s1, ( char * )pkt, sizeof( pkt ), 0 );
if ( rc != TWOINTS && rc != THREEINTS )
error( 1, 0, "recv returned %d\n", rc );
printf( "Packet %d has %d values in %d bytes\n",
i++, ntohl( pkt[ 0 ] ), rc );
}
}