void dino_process_request(dino_http_site_t *dino_site, int socket) {
dino_handle_t dhandle;
init_request(&dhandle);
if (-1 == socket) {
log_error("accept", __FUNCTION__, __LINE__);
}
else {
dhandle.http.socket = socket;
accept_request(dino_site, &dhandle);
}
// Clear the cache memory...
// This assumes that there is no memory allocations
// that will be presisted across calls.
//
memory_cache_clear();
// Free DHANDLE
//
free_request(&dhandle);
// Close Socket
//
close(socket);
}
int main(void)
{
int server_sock = -1;
u_short port = 0;
int client_sock = -1;
//sockaddr_in 是 IPV4的套接字地址结构。定义在<netinet/in.h>,参读《TLPI》P1202
struct sockaddr_in client_name;
int client_name_len = sizeof(client_name);
//pthread_t newthread;
server_sock = startup(&port);
printf("httpd running on port %d\n", port);
while (1)
{
//阻塞等待客户端的连接，参读《TLPI》P1157
client_sock = accept(server_sock,
(struct sockaddr *)&client_name,
&client_name_len);
if (client_sock == -1)
error_die("accept");
accept_request(client_sock);
/*if (pthread_create(&newthread , NULL, accept_request, client_sock) != 0)
perror("pthread_create");*/
}
close(server_sock);
return(0);
}
int main(int argc, char *argv[]){
int listenfd = socket_initialization();
if(listenfd == -1){
return -1;
}
while(1){
int connfd;
struct sockaddr_in clientaddr;
int clientaddr_size = sizeof(clientaddr);
memset(&clientaddr, 0, sizeof(clientaddr));
connfd = accept(listenfd, (struct sockaddr *)&clientaddr, &clientaddr_size);
if(connfd == -1){
continue;
}
char ip_printable[INET_ADDRSTRLEN];
printf("Receive connection from %s:%d\n", inet_ntop(AF_INET, &clientaddr.sin_addr, ip_printable, INET_ADDRSTRLEN),
ntohs(clientaddr.sin_port));
if(fork() == 0){
close(listenfd);
struct connection_s conn;
accept_request(connfd);
return 0;
}
close(connfd);
}
close(listenfd);
return 0;
}
int main(void)
{
int server_sock = -1;
u_short port = 0;
int client_sock = -1;
struct sockaddr_in client_name;
int client_name_len = sizeof(client_name);
//pthread_t newthread;
server_sock = startup(&port);
printf("httpd running on port %d\n", port);
while (1)
{
client_sock = accept(server_sock,
(struct sockaddr *)&client_name,
&client_name_len);
if (client_sock == -1)
error_die("accept");
accept_request(client_sock);
//if (pthread_create(&newthread , NULL, accept_request, client_sock) != 0)
//perror("pthread_create");
}
close(server_sock);
return(0);
}
int CM2PM_server_start(PORT_NUM serv_port)
{
int listenfd = 0, connfd = 0;
int action_label;
listenfd = init_socket();
if (listenfd < 0)
return -1;
if (init_server(serv_port, listenfd) < 0)
return -1;
while (TRUE)
{
connfd = accept_request(listenfd);
if (read_data(connfd, &action_label, sizeof(action_label)) < 0)
{
printf("Read Data Error\n");
return -1;
}
do_action(action_label);
close(connfd);
}
//Success
return 0;
}
int main(int argc, char **argv)
{
int sock;
int new_sock;
pid_t pid = 0;
int opt = 1;
parse_options(argc, argv);
sock = create_sock();
while (1) {
new_sock = accept_request(sock);
if (new_sock < 1) {
break;
}
if ((setsockopt(new_sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt))) < 0) {
perror("setsockopt");
}
pid = client_fork();
if (pid == 0) {
printf("Client spawned\n");
manage_client(new_sock, "A_PASS_HERE", "ENC_TYPE_HERE");
close(new_sock);
}
}
return 0;
}
void friendrequest::on_listWidget_doubleClicked(const QModelIndex &index)
{
QMessageBox::StandardButton reply;
reply = QMessageBox::question(this, "Accept Friend Request", "Accept the Friend Request from "+ui->listWidget->currentItem()->text()+" ?",
QMessageBox::Yes|QMessageBox::No);
if (reply == QMessageBox::Yes) {
emit accept_request(ui->listWidget->currentItem()->text());
on_pushButton_clicked();
} else {
}
}
int listenOnPort(int port)
{
int keepalive = 1, client_fd, status;
// sockaddr: structure to contain an internet address.
struct sockaddr_in svr_addr, cli_addr;
socklen_t sin_len = sizeof(cli_addr);
// create endpoint for comm, AF_INET (IPv4 Internet Protocol),
// SOCK_STREAM (Provides sequenced, reliable, two-way, connection-based byte streams),
int sock = socket(AF_INET, SOCK_STREAM, 0); // returns file descriptor for new socket
if (sock < 0)
fprintf(stderr, "Can't open socket\n");
// (int socket SOL_SOCKET to set options at socket level, allows reuse of local addresses,
// option value, size of socket)
setsockopt(sock, SOL_SOCKET, SO_KEEPALIVE, &keepalive, sizeof(keepalive));
svr_addr.sin_family = AF_INET;
svr_addr.sin_addr.s_addr = inet_addr("127.0.0.1");
svr_addr.sin_port = htons(port); // host to network short (htons)
// Start server
if (bind(sock, (struct sockaddr *) &svr_addr, sizeof(svr_addr)) == -1) {
close(sock);
fprintf(stderr, "Can't bind socket.\n");
// err(1, "Can't bind");
}
listen(sock, 5); // 5 is backlog - limits amount of connections in socket listen queue
printf("listening on localhost with port %d\n", port);
while (1)
{
client_fd = accept(sock, (struct sockaddr *)&cli_addr, &sin_len);
printf("Got connection.\n");
if(fork() == 0){
/* Perform the client’s request in the child process. */
accept_request(client_fd);
exit(0);
}
close(client_fd);
waitpid(-1, &status, WNOHANG);
}
close(sock);
}
void on_draw_game (int fd, struct message *msg)
{
printf ("on_draw_game\n");
msg->type = DRAW_GAME_FEEDBACK;
if (accept_request ("对方请求和棋\n是否同意"))
{
sprintf (msg->buff, "%s 1", get_room_number ());
/* 同意和棋 */
game_draw ();
}
else
{
sprintf (msg->buff, "%s 0", get_room_number ());
}
send_message (msg);
}
int main(void)
{
int server_sock = -1;
u_short port = 0;
int client_sock = -1;
struct sockaddr_in client_name;
int client_name_len = sizeof(client_name);
pid_t pid;
//pthread_t newthread;
//服务器启动，在指定端口或随机选取端口绑定 httpd 服务。
server_sock = startup(&port);
printf("httpd running on port %d\n", port);
while (1)
{
//accept返回的是全新的描述符，代表与所返回客户的TCP连接。
//server_sock是监听套接字，仅一个，服务器的生命期内一直存在
client_sock = accept(server_sock,
(struct sockaddr *)&client_name,
&client_name_len);
if (client_sock == -1)
error_die("accept");
printf("Receive a request from %s:%d\n" , inet_ntoa(client_name.sin_addr) , client_name.sin_port);
if((pid = fork()) == 0)
{
//因子进程也有指向server_sock文件的表项，且它不关心服务器套接字，它只处理客户套接字，因此close它
//下面的父进程close client_sock也是同一个道理
close(server_sock);
accept_request(client_sock);
close(client_sock);
exit(0);
}
int status = 0;
pid_t pid2 = wait(&status);
printf("My pid is %d\n", pid2);
close(client_sock);
//收到一个 HTTP 请求时（其实就是 listen 的端口 accpet 的时候），派生一个线程运行 accept_request 函数。
// if (pthread_create(&newthread , NULL, accept_request, client_sock) != 0)
// perror("pthread_create");
}
return(0);
}
void on_regret (int fd, struct message *msg)
{
printf ("on_regret\n");
msg->type = REGRET_FEEDBACK;
if (accept_request ("对方请求悔棋\n是否同意"))
{
sprintf (msg->buff, "%s 1", get_room_number ());
/* 同意悔棋了，所以要把棋盘恢复到上一步的局面 */
unset_turn ();
restore_chessbord ();
set_regret_flag (FALSE);
min_step ();
}
else
{
sprintf (msg->buff, "%s 0", get_room_number ());
}
send_message (msg);
}
void main(){
int listenSock, connSock;
struct sockaddr_in serv_addr, client_addr;
int clientAddrLenght;
User user[100];
char tmp[100];
int max_user;
char mesg[LEN];
char mesg2[LEN];
char buff[LEN]="11|";
int t,n;
int recvBytes,sentBytes;
fd_set readfds,allset;
int i, maxi,sockfd;
int rv;
struct pollfd client[30];
serv_addr.sin_family = AF_INET;
serv_addr.sin_addr.s_addr = INADDR_ANY;
serv_addr.sin_port = htons(5556);
if((listenSock = socket(AF_INET, SOCK_STREAM, 0)) == -1){
printf("\nTao socket loi!!\n");
return;
}
if(bind(listenSock, (struct sockaddr *) &serv_addr,sizeof(serv_addr))<0) {
printf("\nBind loi!!\n");
return;
}
if(listen(listenSock, 10) == -1) {
printf("\nListen loi!!\n");
return;
}
for ( i = 1; i < 30; i++){
client[i].fd=-1;
}
client[0].fd = listenSock;
client[0].events = POLLRDNORM;
max_user= take_user(user);
while(1){
rv = poll(client, 30,3); //Number of client = 30, time out=3
if(client[0].revents & POLLRDNORM){
clientAddrLenght=sizeof(client_addr);
connSock = accept(listenSock, (struct sockaddr *) &client_addr, (socklen_t*)&clientAddrLenght);
for(i=1;i < 30;i++){
if(client[i].fd < 0){
client[i].fd = connSock;
break;
}
}//end for
client[i].events = POLLRDNORM;
if(--rv <= 0) //no more readable descriptor. Decrement before return
continue;
}//end if
for(i=1;i<30;i++){
if((sockfd = client[i].fd) <0)
continue;
if(client[i].revents & (POLLRDNORM | POLLERR)){
strcpy(mesg,"");
n=recv(sockfd, mesg, LEN, 0);
printf("\nXau nhan tu Client: %s",mesg );
mesg[n]='\0';
if((n)==0){
close(sockfd);
client[i].fd = -1;
for ( i = 0; i < max_user; i++){
if(user[i].sockfd==sockfd){
user[i].status=0;
break;
}
}
}else{
// printf("\nXau nhan tu Client: %s",mesg );
t=check_mark(mesg);
if(t == 0) max_user = sign_up(sockfd,mesg,user,max_user);
if(t == 1) {
login(sockfd,mesg,user,max_user);
}
if(t == 2) show_user_list(sockfd,user,max_user);
if(t == 3) play_request(sockfd,mesg,user,max_user);
if(t == 4) accept_request(sockfd,mesg,user,max_user);
if(t == 5) not_accept_request(sockfd,mesg,user,max_user);
if(t == 6) playing(sockfd,mesg,user,max_user);
if(t == 7) stop_play(sockfd,mesg,user,max_user);
if(t == 8) log_out(sockfd,user,max_user);
}
if(--rv <= 0)
break;
}
}
}//end while
}
int
main(int argc, char *argv[])
{
int client_sock = -1;
int client_name_len = sizeof (client_name);
int request=0;
struct nunetwork_headerstruct *header_buf;
header_buf = (struct nunetwork_headerstruct*)malloc( sizeof(*header_buf) );
/********************
* Don't forget to make pointer to variable cast (*pointer)
* When using sizeof(). Otherwise it may cost you a week of
* debug time.
*******************/
if (geteuid()) {
printf("Netustad must be run as root.\n");
exit(1);
}
conffile = (char *)strdup(default_conf_file);
/*setlocale (LC_ALL, "");*/
bindtextdomain (PACKAGE, PACKAGE_LOCALE_DIR);
textdomain ( PACKAGE );
/*******************/
/* Check Arguments */
/*******************/
if (argc==2) {
if (strcmp(argv[1], "-h") == 0 ||
strcmp(argv[1], "--help") == 0) {
printf( gettext("\nnetUstad: Network Ustadi (Network Master)\n"));
printf( gettext("Copyright (C) 2004 by Ozkan KIRIK\n"));
printf( gettext("Usage: netustad [options]\n"));
printf( gettext("\n"));
printf( "%s:\n", gettext("Options"));
printf( gettext("\t-h\tShow this help screen\n"));
printf( gettext("\t-v\tShow version\n"));
printf
(gettext("\t-c\tUse following parameter as configuration file"));
printf("\n");
exit(0);
} else if (strcmp(argv[1], "-v") == 0 ||
strcmp(argv[1], "--version") == 0) {
printf(gettext("\nnetUstad: Network Ustadi (Network Master)\n"));
printf(gettext("Copyright (C) 2004 by Ozkan KIRIK\n\n"));
printf(gettext("Version: %s\n\n"), NUVERSION);
exit(0);
}
} else if (argc == 3 && strcmp(argv[1], "-c") == 0) {
conffile = strdup(argv[2]);
} else if (argc!=1) {
if (strcmp(argv[1], "-c") == 0) {
printf (gettext("\nnetUstad: Invalid Number Of Arguments\n\n"));
} else {
printf(gettext("\nnetUstad: Invalid Argument\n\n"));
}
exit(1);
}
/**********************/
/* Start Main Program */
/**********************/
readconfig(conffile);
if (setlocale (LC_ALL, (const char*) lc_all) == NULL) {
log_msg(mainlogfile, gettext("setlocale failed\n"), 1);
printf(gettext("setlocale failed\n"));
}
bindtextdomain (PACKAGE, PACKAGE_LOCALE_DIR);
textdomain ( PACKAGE );
nameoftty = ttyname(0);
daemonize();
#ifndef WITHOUT_SSL
ssl = nunetwork_init_ssl( nunetwork_init_ctx( cert_file, key_file) );
#endif
server_sock = startup(&port); /* Open Socket & Listen */
log_msg(mainlogfile, "<<<<<<<<<<<<<<<<<<<<<<>>>>>>>>>>>>>>>>>>>>>>\n", 0);
snprintf(log_msg_text, sizeof(log_msg_text)-1, "netUstad-%s\n", NUVERSION);
log_msg(mainlogfile, log_msg_text, 0);
snprintf(log_msg_text, sizeof (log_msg_text)-1, "%s",
gettext("netUstad is started\n"));
log_msg(mainlogfile, log_msg_text, 1);
snprintf(log_msg_text, sizeof (log_msg_text)-1, gettext("\nListening port %d\n"), port);
log_msg(mainlogfile, log_msg_text, 0);
log_msg(mainlogfile, gettext("Ready for requests...\n\n"), 0);
snprintf(log_msg_text, sizeof(log_msg_text)-1, "netUstad-%s\n", NUVERSION);
log_msg(nameoftty, log_msg_text, 0);
snprintf(log_msg_text, sizeof (log_msg_text)-1,
gettext("\nnetUstad is started\nListening port %d\n"), port);
log_msg(nameoftty, log_msg_text, 0);
while (1) {
client_sock = accept(server_sock,
(struct sockaddr *) &client_name,
(socklen_t *)&client_name_len);
if (client_sock == -1)
continue;
#ifndef WITHOUT_SSL
SSL_set_fd(ssl, client_sock);
sslerror = SSL_accept(ssl);
if ( sslerror <= 0 ) {
sslerror= SSL_get_error(ssl, sslerror);
ERR_error_string(sslerror, log_msg_text);
log_msg(mainlogfile, log_msg_text, 1);
log_msg(mainlogfile, "\n",0);
SSL_shutdown(ssl);
SSL_free(ssl);
close(client_sock);
ssl = nunetwork_init_ssl(ctx);
continue;
}
request = nunetwork_getheaders(ssl, header_buf, nu_acceptedheaders);
if (request > 0)
accept_request(ssl, header_buf);
else if (request==-2 || request==0)
bad_request(ssl);
nunetwork_close(ssl);
#else
request = nunetwork_getheaders(client_sock, header_buf, nu_acceptedheaders);
if (request > 0)
accept_request(client_sock, header_buf);
else if (request==-2 || request==0 )
bad_request(ssl);
nunetwork_close(client_sock);
#endif
}
#ifndef WITHOUT_SSL
SSL_shutdown(ssl);
SSL_free(ssl);
SSL_CTX_free(ctx);
#else
close(server_sock);
#endif
return (0);
}
int main(int argc,char* argv[])
{
if(argc!=3)
{
usage(argv[0]);
return 1;
}
char* ip=argv[1];
int port=atoi(argv[2]);
int listen_sock=startup(ip,port);
struct sockaddr_in client;
socklen_t len=sizeof(client);
int epo_fd=epoll_create(256);
if(epo_fd<0)//success:not 0 fd/error:-1
{
printLog(strerror(errno),__FUNCTION__,__LINE__);
return -1;
}
bf_p fd_bf=(bf_p)malloc(sizeof(bf_t));
memset(fd_bf->_buf,'\0',sizeof(fd_bf->_buf));
fd_bf->_fd=listen_sock;
struct epoll_event ev;
ev.events=EPOLLIN;
ev.data.fd=listen_sock;
if(epoll_ctl(epo_fd,EPOLL_CTL_ADD,listen_sock,&ev)<0)//success:0 fail:-1
{
printLog(strerror(errno),__FUNCTION__,__LINE__);
return -1;
}
struct epoll_event evfds[_SIZE_];//_SIZE_ 1024
int _timeout=5000;
int ret=-1;
int i=0;
while(1)
{
switch((ret=epoll_wait(epo_fd,evfds,_SIZE_,_timeout)))
{
case -1://error
printLog(strerror(errno),__FUNCTION__,__LINE__);
break;
case 0://time out
printf("time out...\n");
break;
default://normal
{
for(i=0;i<ret;++i)
{
if(evfds[i].data.fd==listen_sock&&evfds[i].events&EPOLLIN)
{
int new_sock=accept(listen_sock,(struct sockaddr*)&client,&len);
if(new_sock<0)
{
printLog(strerror(errno),__FUNCTION__,__LINE__);
continue;
}
bf_p _bf=(bf_p)malloc(sizeof( bf_t));
memset(_bf->_buf,'\0',sizeof(_bf->_buf));
_bf->_fd=new_sock;
ev.events=EPOLLIN;
ev.data.ptr=_bf;
epoll_ctl(epo_fd,EPOLL_CTL_ADD,new_sock,&ev);
}
else if(((bf_p)(evfds[i].data.ptr))->_fd>0&&evfds[i].events&EPOLLIN)
{
accept_request(evfds[i].data.ptr);
ev.events=EPOLLOUT;
ev.data.ptr=evfds[i].data.ptr;
epoll_ctl(epo_fd,EPOLL_CTL_MOD,((bf_p)(evfds[i].data.ptr))->_fd,&ev);
}
else if(((bf_p)(evfds[i].data.ptr))->_fd>0&&evfds[i].events&EPOLLOUT)
{
bf_p _bf=(bf_p)evfds[i].data.ptr;
if(_bf->_err)
{
send(_bf->_fd,_bf->_buf,strlen(_bf->_buf),0);
}
else if(_bf->_cgi)//cgi=1
{
send(_bf->_fd,_bf->_buf,strlen(_bf->_buf),0);
}
else
{
char* path=_bf->_path;
int fd=open(path,O_RDONLY);
if(fd<0)
{
printLog(strerror(errno),__FUNCTION__,__LINE__);
exit(1);
}
send(_bf->_fd,_bf->_buf,strlen(_bf->_buf),0);
if(sendfile(_bf->_fd,fd,NULL,_bf->_st_size)<0)
{
printf("error");
}
close(fd);
}
epoll_ctl(epo_fd,EPOLL_CTL_DEL,_bf->_fd,NULL);
close(_bf->_fd);
free(_bf);
}
}
break;
}
}
}
return 0;
}
