有没有用C编写的服务端SOCKET程序__proxy_sockfd_printf_connfd_read_set_recv_buf_

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有没有用C编写的服务端SOCKET程序

来源: 互联网发布时间：2015-09-02

本文导语: 就是本机建立服务,打开服务端口的程序.谢谢 | #include #include void main() { WSADATA wsd; SOCKET sListen,sClient; struct sockaddr_in local,client; struct hostent * host = NULL; WSAStartup(MAKEWORD(2,2),&wsd); sLis...

就是本机建立服务,打开服务端口的程序.谢谢

#include
#include

void main()
{
WSADATA wsd;
SOCKET sListen,sClient;
struct sockaddr_in local,client;
struct hostent * host = NULL;

WSAStartup(MAKEWORD(2,2),&wsd);

sListen = socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);

local.sin_addr.S_un.S_addr = htonl(INADDR_ANY);

local.sin_family = AF_INET;

local.sin_port = htons(4444);

bind(sListen,(struct sockaddr*)&local,sizeof(local));

listen(sListen,8);

int iAddrSize = sizeof(client);

sClient = accept(sListen,(struct sockaddr *)&client,&iAddrSize);

char buf[10] = "hello";
send(sClient,buf,6,0);

couth_addr);

#ifdef DEBUG
printf("ip address=%sn",inet_ntoa(proxy.sin_addr));
#endif

/* connect http server */
if(connect(proxy_sockfd,(SockAddr*)&proxy,sizeof(SockAddr))==-1){
perror("proxy connect error");
close(connfd);
free(url);
return;
}

/* send request to http server */
send(proxy_sockfd,recv_buf,num,0);

#ifdef DEBUG
printf("n================proxy request================n");
printf("%sn",recv_buf);
printf("n============================================n");
#endif

/*
FD_ZERO(&read_set);
FD_SET(connfd,&read_set);
FD_SET(proxy_sockfd,&read_set);
*/

while(1){

#ifdef DEBUG
printf("n==========while begin==============n");
#endif

FD_ZERO(&read_set);
FD_SET(connfd,&read_set);
FD_SET(proxy_sockfd,&read_set);

#ifdef DEBUG
printf("connfd=%d,proxy_sockfd=%dn",connfd,proxy_sockfd);
printf("n========select forward===============n");
#endif

num_select=select((connfd>proxy_sockfd?connfd:proxy_sockfd)+1,&read_set,NULL,NULL,NULL);

#ifdef DEBUG
printf("num_select=%dn",num_select);
printf("n========select backwork==============n");
#endif

if(FD_ISSET(connfd,&read_set)){
bzero(recv_buf,MAX_DATA_SIZE);
num=recv(connfd,recv_buf,MAX_DATA_SIZE,0);

#ifdef DEBUG
printf("n===============proxy request again====================n");
printf("%sn",recv_buf);
printf("n==================================================n");
#endif

if(num==0 || num==-1){

#ifdef DEBUG
printf("client[%d] clsoedn",connfd);
#endif

close(connfd);
close(proxy_sockfd);
break;
}

send(proxy_sockfd,recv_buf,num,0);
//FD_CLR(connfd,&read_set);
}

if(FD_ISSET(proxy_sockfd,&read_set)){
bzero(recv_buf,MAX_DATA_SIZE);
num=recv(proxy_sockfd,recv_buf,MAX_DATA_SIZE,0);

#ifdef DEBUG
printf("n================http server response========================n");
printf("%sn",recv_buf);
printf("n===========================================================n");
#endif

if(num==0 || num==-1){

#ifdef DEBUG
printf("server[%d] closedn",proxy_sockfd);
#endif

close(connfd);
close(proxy_sockfd);
break;
}

send(connfd,recv_buf,num,0);
//FD_CLR(proxy_sockfd,&read_set);
}

#ifdef DEBUG
printf("n=====================while end============================n");
#endif

} //end while

free(url);

//printf("ip=%sn",inet_ntoa(proxy.sin_addr));
}

void* start_thread(void* arg){
int connfd;
connfd=*(int*)(arg);

#ifdef DEBUG
printf("n>>>>>>>>>>>>>>>>>>>>>>>this is the %d thread>>>>>>>>>>>>>>>>>>>>>>>>>>>n",index_thread++);
#endif

handle_request(connfd);
pthread_exit(NULL);
}

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友情 UP :)))
MARK,我也想要这方面的资料,不知哪位大虾支持一下..了。.

UNP(Unix Network Porgramming). Vol1 , Page 11.

#include
int main()
{
  struct sockaddr_in conn_addr;
  int    sock_fd;
  char   buf[2048];
  if((sock_fd=socket(AF_INET,SOCK_DGRAM,0))