c语言 tcp方式的聊天室 sercer端望大家帮我看看是否有问题 - C语言论坛

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c语言 tcp方式的聊天室 sercer端望大家帮我看看是否有问题

程序代码：

#include<stdio.h>
#include<Winsock.h> 
#include<process.h>
#include<string.h>

#define PORTNUM 5000
#define MAX_PENDING_CONNECTS 4

typedef struct{
    SOCKET Winsock;
    SOCKADDR_IN local_sin,accept_sin;
}PARAMS,*PPARAMS;


SOCKADDR_IN local_sin,//the address of local socket
            accept_sin;//the address of accepted object

char szServerA[100];
SOCKET ClientSock = INVALID_SOCKET; // the socket of server and client
TCHAR szSendBUffer[100]; //share buffer pool in thread


void NetWorkThread(PVOID pvoid)
{
  int err,iReturn;
  volatile PPARAMS pparams;
  int accept_sin_len;
  pparams=(PPARAMS)pvoid;
  
  accept_sin_len=sizeof(pparams->accept_sin);
  /*make accept*/
  err=accept(pparams->Winsock,(struct sockaddr *)&(pparams->accept_sin),
                              (int *)&accept_sin_len);

  //closesocket(pparams->Winsock);

  if(err==INVALID_SOCKET) //INVALID_SOCKET=-1
    printf("Accept error\n");
for(;;)
{
  iReturn=recv(ClientSock,szServerA,sizeof(szServerA),0);
  if(iReturn == SOCKET_ERROR)
  {
      printf("receive data failed\n");
      break;
  }
  else
  {
      printf("%s",szServerA);
      break;
  }
}
/*forbid port*/
shutdown(ClientSock,0x02);

/*close ClientSock*/
closesocket(ClientSock);

WSACleanup();
}



void   main()   
{   
  WORD wVersionRequested;
  static WSADATA wsaData;
  static SOCKET Winsock=INVALID_SOCKET; //INVALID_SOCKET=-1
  static PARAMS params;
  int err;

  /*make WSAStartup for using Socket*/
  wVersionRequested = MAKEWORD( 1, 1 );
  err = WSAStartup(wVersionRequested, &wsaData );
  if(err!=0)
      printf("WSAStartup error\n");

  /*make socket*/
  Winsock=socket(AF_INET,SOCK_STREAM,0);//socket function must toLower
  if(Winsock==INVALID_SOCKET)  //INVALID_SOCKET=-1
      printf("make socket error\n");

  /*fill in the local information of socket */
  local_sin.sin_family=AF_INET;
  local_sin.sin_port = htons(PORTNUM);
  local_sin.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
  err=bind(Winsock, (struct sockaddr *)&local_sin, sizeof(local_sin));
  if(err==SOCKET_ERROR) //SOCKET_ERROR=-1
      printf("Bind error\n");

  /*make listen*/
  err=listen(Winsock,MAX_PENDING_CONNECTS); //MAX_PENDING_CONNECTS=4
  if(err==SOCKET_ERROR) //SOCKET_ERROR=-1
      printf("Listen error\n");

  params.Winsock = Winsock;
  params.accept_sin = accept_sin;
  params.local_sin = local_sin;
  _beginthread(NetWorkThread,0,&params);

  err=send(ClientSock,szSendBUffer,strlen(szSendBUffer)+1,0);
  if(err==SOCKET_ERROR)
      printf("Send error!");
}

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第 2 楼

得分:0

看不懂哈

第 3 楼

得分:0

天书，呵呵

时代万维 www.

第 4 楼

得分:0

被我更新了下:
server端
#include<stdio.h>
#include<Winsock.h>
#include<process.h>
#include<string.h>

#define PORTNUM 5000
#define MAX_PENDING_CONNECTS 4

typedef struct{
    SOCKET Winsock;
    SOCKADDR_IN local_sin,accept_sin;
}PARAMS,*PPARAMS;

SOCKADDR_IN local_sin,//the address of local socket
            accept_sin;//the address of accepted object

char szServerA[100];
SOCKET ClientSock = INVALID_SOCKET; // the socket of server and client
TCHAR szSendBuffer[100]; //share buffer pool in thread

void NetWorkThread(PVOID pvoid)
{
  int err,iReturn;
  volatile PPARAMS pparams;
  int accept_sin_len;
  pparams=(PPARAMS)pvoid;

  accept_sin_len=sizeof(pparams->accept_sin);
  /*make accept*/
  err=accept(pparams->Winsock,(struct sockaddr *)&(pparams->accept_sin),
                              (int *)&accept_sin_len);

  //closesocket(pparams->Winsock);

  if(err==INVALID_SOCKET) //INVALID_SOCKET=-1
    printf("Accept error\n");
for(;;)
{
  iReturn=recv(ClientSock,szServerA,sizeof(szServerA),0);
  if(iReturn == SOCKET_ERROR)
  {
      printf("receive data failed\n");
      break;
  }
  else
  {
      printf("%s",szServerA);
      break;
  }
}
/*forbid port*/
shutdown(ClientSock,0x02);

/*close ClientSock*/
closesocket(ClientSock);

WSACleanup();
}

void   main()
{
  WORD wVersionRequested;
  static WSADATA wsaData;
  static SOCKET Winsock=INVALID_SOCKET; //INVALID_SOCKET=-1
  static PARAMS params;
  int err;

  /*make WSAStartup for using Socket*/
  wVersionRequested = MAKEWORD( 1, 1 );
  err = WSAStartup(wVersionRequested, &wsaData );
  if(err!=0)
      printf("WSAStartup error\n");

  /*make socket*/
  Winsock=socket(AF_INET,SOCK_STREAM,0);//socket function must toLower
  if(Winsock==INVALID_SOCKET)  //INVALID_SOCKET=-1
      printf("make socket error\n");

  /*fill in the local information of socket */
  local_sin.sin_family=AF_INET;
  local_sin.sin_port = htons(PORTNUM);
  local_sin.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
  err=bind(Winsock, (struct sockaddr *)&local_sin, sizeof(local_sin));
  if(err==SOCKET_ERROR) //SOCKET_ERROR=-1
      printf("Bind error\n");

  /*make listen*/
  err=listen(Winsock,MAX_PENDING_CONNECTS); //MAX_PENDING_CONNECTS=4
  if(err==SOCKET_ERROR) //SOCKET_ERROR=-1
      printf("Listen error\n");

  params.Winsock = Winsock;
  params.accept_sin = accept_sin;
  params.local_sin = local_sin;
  _beginthread(NetWorkThread,0,&params);

  scanf("%s",szSendBuffer);
  err=send(ClientSock,szSendBuffer,strlen(szSendBuffer)+1,0);
  if(err==SOCKET_ERROR)
      printf("Send error!");
}