socket编程客户端代码（vc++6 怎么编写SOCKET的服务器和客户端最好都具体步骤）

：暂无数据 2026-08-20 20:00:05 ：0

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本文目录

vc++6 怎么编写SOCKET的服务器和客户端最好都具体步骤
采用tcp协议,使用socket编程,编写程序完成客户端发送消息给服务端,服务端接到消息后，再发
在做java的socket编程的时候碰到了问题，就是实现简单的客户端和服务器端相互发送文件的例子，具体如下
linux下socket 网络编程(客户端向服务器端发送文件) 求源代码大哥大姐帮帮忙 ,谢谢
求C++，socket聊天程序的代码，最好是实现了两个客户端之间经由服务器的信息互发，聊天功能要完整些

vc++6 怎么编写SOCKET的服务器和客户端最好都具体步骤

1.简单服务器//#include//#pragmacomment(lib,"WS2_32.lib")WSADATAwsd;staticUINTport=%%1;UINTListen(LPVOIDpParam){SOCKETsServer,sClient;charbuf;staticUINTport=%%2;BOOLlistenerRun=TRUE;UINTListen(LPVOIDpParam){addrServ.sin_family=AF_INET;addrServ.sin_port=htons((UINT)pParam);addrServ.sin_addr.s_addr=INADDR_ANY;retVal=bind(sServer,(LPSOCKADDR)&addrServ,sizeof(SOCKADDR_IN));if(SOCKET_ERROR==retVal){closesocket(sServer);WSACleanup();return-1;//绑定套接字失败}retVal=listen(sServer,1);if(SOCKET_ERROR==retVal){closesocket(sServer);WSACleanup();return-1;//开始监听失败}intaddrClientlen=sizeof(addrClient);sClient=accept(sServer,(sockaddrFAR*)&addrClient,&addClientlen);if(INVALID_SOCKET==sClient){closesocket(sServer);WSACleanup();return-1;//接收客户端请求失败}while(listenerRun){ZeroMemory(buf,sizeof(buf));retVal=recv(sClient,buf,sizeof(buf));if(SOCKET_ERROR==retVal){closesocket(sServer);closesocket(sClient);WSACleanup();return-1;//接收客户端数据失败}CString%%4(buf);}}if(WSAStartup(MAKEWORD(2,2),&wsd)!=0){return-1;//失败}sServer=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);if(INVALID_SOCKET==sServer){WSACleanup();return-1;//创建套接字失败}CWinThread*pThread=AfxBeginThread(Listen,&port);sHost=socket(AF_INET,SOCK_STREAM,IPPROTO_TCP);if(INVALID_SOCKET==sHost){WSACleanup();return-1;//创建套接字失败}servAddr2.sin_family=AF_INET;servAddr2.sin_addr.s_addr=inet_addr(%%1);servAddr.sin_port=htons((short)%%3);intnServerAddrlen=sizeof(servAddr2);retVal=connect(sHost,(LPSOCKADDR)&servAddr2,sizeof(servAddr2));if(SOCKET_ERROR==retVal){closesocket(sHost);WSACleanup();return-1;//连接失败}zeroMemory(buf,sizeof(buf));strcpy(buf,%%5);retVal=send(sHost,buf,sizeof(buf),0);if(SOCKET_ERROR==retVal){closesocket(sHost);WSACleanup();return-1;//向发送数据失败}listenerRun=FALSE;DWORDdwExitCode;::GetExitCodeThread(pThread-》m_hThread,&dwExitCode);pThread=null;closesocket(sServer);closesocket(sClient);closesocket(sHost);WSACleanup();

采用tcp协议,使用socket编程,编写程序完成客户端发送消息给服务端,服务端接到消息后，再发

服务端代码：
/*server.c*/

#include 《sys/types.h》
#include 《sys/socket.h》
#include 《stdio.h》
#include 《stdlib.h》
#include 《string.h》
#include 《sys/ioctl.h》
#include 《unistd.h》
#include 《netinet/in.h》

#define PORT 4321
#define BUFFER_SIZE 1024
#define MAX_QUE_CONN_NM 5

int main()
{
struct sockaddr_in server_sockaddr, client_sockaddr;
int sin_size, recvbytes;
int sockfd, client_fd;
char buf;

/*建立socket连接*/
if ((sockfd = socket(AF_INET,SOCK_STREAM,0))== -1)
{
perror("socket");
exit(1);
}
printf("Socket id = %d\n",sockfd);

/*设置sockaddr_in 结构体中相关参数*/
server_sockaddr.sin_family = AF_INET;
server_sockaddr.sin_port = htons(PORT);
server_sockaddr.sin_addr.s_addr = INADDR_ANY;
bzero(&(server_sockaddr.sin_zero), 8);

int i = 1;/* 使得重复使用本地地址与套接字进行绑定 */
setsockopt(sockfd, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));

/*绑定函数bind*/
if (bind(sockfd, (struct sockaddr *)&server_sockaddr, sizeof(struct sockaddr))== -1)
{
perror("bind");
exit(1);
}
printf("Bind success!\n");

/*调用listen函数*/
if (listen(sockfd, MAX_QUE_CONN_NM) == -1)
{
perror("listen");
exit(1);
}
printf("Listening....\n");

/*调用accept函数，等待客户端的连接*/
if ((client_fd = accept(sockfd, (struct sockaddr *)&client_sockaddr, &sin_size)) == -1)
{
perror("accept");
exit(1);
}

/*调用recv函数接收客户端的请求*/
memset(buf , 0, sizeof(buf));
if ((recvbytes = recv(client_fd, buf, BUFFER_SIZE, 0)) == -1)
{
perror("recv");
exit(1);
}
printf("Received a message: %s\n", buf);
if ((sendbytes = send(sockfd, buf, strlen(buf), 0)) == -1)
{
perror("send");
exit(1);
}
close(sockfd);
exit(0);
}
客户端：
/*client.c*/

#include 《sys/types.h》
#include 《sys/socket.h》
#include 《stdio.h》
#include 《stdlib.h》
#include 《string.h》
#include 《sys/ioctl.h》
#include 《unistd.h》
#include 《netdb.h》
#include 《netinet/in.h》

#define PORT 4321
#define BUFFER_SIZE 1024

int main(int argc, char *argv)
{
int sockfd, sendbytes;
char buf;
struct hostent *host;
struct sockaddr_in serv_addr;

if(argc 《 3)
{
fprintf(stderr,"USAGE: ./client Hostname(or ip address) Text\n");
exit(1);
}

/*地址解析函数*/
if ((host = gethostbyname(argv)) == NULL)
{
perror("gethostbyname");
exit(1);
}

memset(buf, 0, sizeof(buf));
sprintf(buf, "%s", argv);

/*创建socket*/
if ((sockfd = socket(AF_INET,SOCK_STREAM,0)) == -1)
{
perror("socket");
exit(1);
}

/*设置sockaddr_in 结构体中相关参数*/
serv_addr.sin_family = AF_INET;
serv_addr.sin_port = htons(PORT);
serv_addr.sin_addr = *((struct in_addr *)host-》h_addr);
bzero(&(serv_addr.sin_zero), 8);

/*调用connect函数主动发起对服务器端的连接*/
if(connect(sockfd,(struct sockaddr *)&serv_addr, sizeof(struct sockaddr))== -1)
{
perror("connect");
exit(1);
}

/*发送消息给服务器端*/
if ((sendbytes = send(sockfd, buf, strlen(buf), 0)) == -1)
{
perror("send");
exit(1);
}
if ((recvbytes = recv(sockfd, buf, BUFFER_SIZE, 0)) == -1)
{
perror("recv");
exit(1);
}
close(sockfd);
exit(0);
}

在做java的socket编程的时候碰到了问题，就是实现简单的客户端和服务器端相互发送文件的例子，具体如下

// server,同时注意socket的close
server=new ServerSocket(PORT);
client=server.accept();
// client 写法如下
String host = "127.0.0.1"; // 要连接的服务端IP地址
int port = 8899; // 要连接的服务端对应的监听端口
// 与服务端建立连接
Socket client = new Socket(host, port);
//建立连接后就可以往服务端写数据了
Writer writer = new OutputStreamWriter(client.getOutputStream());
writer.write("Hello Server.");
writer.flush();// 写完后要记得flush
writer.close();
client.close();

linux下socket 网络编程(客户端向服务器端发送文件) 求源代码大哥大姐帮帮忙 ,谢谢

源代码奉上，流程图。。。这个太简单了，你自己看看。。。。。。。
//TCP
//服务器端程序
#include《 stdio.h 》
#include《 stdlib.h 》
#include《 windows.h 》
#include《 winsock.h 》
#include《 string.h 》
#pragma comment( lib, "ws2_32.lib" )
#define PORT 2046
#define BACKLOG 10
#define TRUE 1
void main( void )
{
int iServerSock;
int iClientSock;
char *buf = "hello, world!\n";
struct sockaddr_in ServerAddr;
struct sockaddr_in ClientAddr;
int sin_size;
WSADATA WSAData;
if( WSAStartup( MAKEWORD( 1, 1 ), &WSAData ) )//初始化
{
printf( "initializationing error!\n" );
WSACleanup( );
exit( 0 );
}
if( ( iServerSock = socket( AF_INET, SOCK_STREAM, 0 ) ) == INVALID_SOCKET )
{
printf( "创建套接字失败!\n" );
WSACleanup( );
exit( 0 );
}
ServerAddr.sin_family = AF_INET;
ServerAddr.sin_port = htons( PORT );//监视的端口号
ServerAddr.sin_addr.s_addr = INADDR_ANY;//本地IP
memset( & ( ServerAddr.sin_zero ), 0, sizeof( ServerAddr.sin_zero ) );
if( bind( iServerSock, ( struct sockaddr * )&ServerAddr, sizeof( struct sockaddr ) ) == -1 )
{
printf( "bind调用失败!\n" );
WSACleanup( );
exit( 0 );
}
if( listen( iServerSock, BACKLOG ) == -1 )
{
printf( "listen调用失败!\n" );
WSACleanup( );
exit( 0 );
}
while( TRUE )
{
sin_size = sizeof( struct sockaddr_in );
iClientSock = accept( iServerSock, ( struct sockaddr * )&ClientAddr, &sin_size );
if( iClientSock == -1 )
{
printf( "accept调用失败!\n" );
WSACleanup( );
exit( 0 );
}
printf( "服务器连接到%s\n", inet_ntoa( ClientAddr.sin_addr ) );
if( send( iClientSock, buf, strlen( buf ), 0 ) == -1 )
{
printf( "send调用失败!" );
closesocket( iClientSock );
WSACleanup( );
exit( 0 );
}
}
}
/////客户端程序
#include《 stdio.h 》
#include《 stdlib.h 》
#include《 windows.h 》
#include《 winsock.h 》
#include《 string.h 》
#pragma comment( lib, "ws2_32.lib" )
#define PORT 2046
#define BACKLOG 10
#define TRUE 1
#define MAXDATASIZE 100
void main( void )
{
int iClientSock;
char buf;
struct sockaddr_in ServerAddr;
int numbytes;
// struct hostent *he;
WSADATA WSAData;
// int sin_size;
/* if( ( he = gethostbyname( "liuys" ) ) == NULL )
{
printf( "gethostbyname调用失败!" );
WSACleanup( );
exit( 0 );
}
*/
if( WSAStartup( MAKEWORD( 1, 1 ), &WSAData ) )//初始化
{
printf( "initializationing error!\n" );
WSACleanup( );
exit( 0 );
}
if( ( iClientSock = socket( AF_INET, SOCK_STREAM, 0 ) ) == INVALID_SOCKET )
{
printf( "创建套接字失败!\n" );
WSACleanup( );
exit( 0 );
}
ServerAddr.sin_family = AF_INET;
ServerAddr.sin_port = htons( PORT );
// ServerAddr.sin_addr = *( ( struct in_addr * )he-》h_addr );
ServerAddr.sin_addr.s_addr = inet_addr( "192.168.2.194" );//记得换IP
memset( &( ServerAddr.sin_zero ), 0, sizeof( ServerAddr.sin_zero ) );
if( connect( iClientSock, ( struct sockaddr * ) & ServerAddr, sizeof( struct sockaddr ) ) == -1 )
{
printf( "connect失败!" );
WSACleanup( );
exit( 0 );
}
numbytes = recv( iClientSock, buf, MAXDATASIZE, 0 );
if( numbytes == -1 )
{
printf( "recv失败!" );
WSACleanup( );
exit( 0 );
}
buf = ’\0’;
printf( "Received: %s", buf );
closesocket( iClientSock );
WSACleanup( );
}
/////UDP
//服务器
#include《 stdio.h 》
#include《 string.h 》
#include《 winsock.h 》
#include《 windows.h 》
#pragma comment( lib, "ws2_32.lib" )
#define PORT 2046
#define BACKLOG 10
#define TRUE 1
#define MAXDATASIZE 1000
void main( void )
{
int iServerSock;
// int iClientSock;
int addr_len;
int numbytes;
char buf;
struct sockaddr_in ServerAddr;
struct sockaddr_in ClientAddr;
WSADATA WSAData;
if( WSAStartup( MAKEWORD( 1, 1 ), &WSAData ) )
{
printf( "initializationing error!\n" );
WSACleanup( );
exit( 0 );
}
iServerSock = socket( AF_INET, SOCK_DGRAM, 0 );
if( iServerSock == INVALID_SOCKET )
{
printf( "创建套接字失败!\n" );
WSACleanup( );
exit( 0 );
}
ServerAddr.sin_family = AF_INET;
ServerAddr.sin_port = htons( PORT );//监视的端口号
ServerAddr.sin_addr.s_addr = INADDR_ANY;//本地IP
memset( & ( ServerAddr.sin_zero ), 0, sizeof( ServerAddr.sin_zero ) );
if( bind( iServerSock, ( struct sockaddr * )&ServerAddr, sizeof( struct sockaddr ) ) == -1 )
{
printf( "bind调用失败!\n" );
WSACleanup( );
exit( 0 );
}
addr_len = sizeof( struct sockaddr );
numbytes = recvfrom( iServerSock, buf, MAXDATASIZE, 0, ( struct sockaddr * ) & ClientAddr, &addr_len );
if( numbytes == -1 )
{
printf( "recvfrom调用失败!\n" );
WSACleanup( );
exit( 0 );
}
printf( "got packet from %s\n", inet_ntoa( ClientAddr.sin_addr ) );
printf( "packet is %d bytes long\n", numbytes );
buf = ’\0’;
printf( "packet contains \"%s\"\n", buf );
closesocket( iServerSock );
WSACleanup( );
}
//客户端
#include《 stdio.h 》
#include《 stdlib.h 》
#include《 windows.h 》
#include《 winsock.h 》
#include《 string.h 》
#pragma comment( lib, "ws2_32.lib" )
#define PORT 2046
#define MAXDATASIZE 100
void main( void )
{
int iClientSock;
struct sockaddr_in ServerAddr;
int numbytes;
char buf = { 0 };
WSADATA WSAData;
if( WSAStartup( MAKEWORD( 1, 1 ), &WSAData ) )
{
printf( "initializationing error!\n" );
WSACleanup( );
exit( 0 );
}
if( ( iClientSock = socket( AF_INET, SOCK_DGRAM, 0 ) ) == -1 )
{
printf( "创建套接字失败!\n" );
WSACleanup( );
exit( 0 );
}
ServerAddr.sin_family = AF_INET;
ServerAddr.sin_port = htons( PORT );
ServerAddr.sin_addr.s_addr = inet_addr( "192.168.2.194" );//记得换IP
memset( &( ServerAddr.sin_zero ), 0, sizeof( ServerAddr.sin_zero ) );
numbytes = sendto( iClientSock, buf, strlen( buf ), 0, ( struct sockaddr * ) & ServerAddr, sizeof( struct sockaddr ) );
if( numbytes == -1 )
{
printf( "sendto调用失败!\n" );
WSACleanup( );
exit( 0 );
}
printf( "sent %d bytes to %s\n", numbytes, inet_ntoa( ServerAddr.sin_addr ) );
closesocket( iClientSock );
WSACleanup( );
}

求C++，socket聊天程序的代码，最好是实现了两个客户端之间经由服务器的信息互发，聊天功能要完整些

#include 《stdio.h》
#include 《winsock2.h》
#define MAX_SIZE 200
void main(void) {
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
return;
}
/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return;
}
SOCKET sockSrv = socket(AF_INET, SOCK_DGRAM, 0);
SOCKADDR_IN addrSrv;
addrSrv.sin_addr.S_un.S_addr = htonl(INADDR_ANY);
addrSrv.sin_family = AF_INET;
addrSrv.sin_port = htons(6000);
bind(sockSrv, (SOCKADDR *)&addrSrv, sizeof(SOCKADDR));
SOCKADDR addrClient;
char recvBuffer;
memset(recvBuffer, 0, sizeof(recvBuffer));
int len = sizeof(SOCKADDR);
recvfrom(sockSrv, recvBuffer, sizeof(recvBuffer), 0, (SOCKADDR *)&addrClient, &len);
printf("%s\n", recvBuffer);
closesocket(sockSrv);
}
#include 《stdio.h》
#include 《winsock2.h》
void main(void) {
WORD wVersionRequested;
WSADATA wsaData;
int err;
wVersionRequested = MAKEWORD( 1, 1 );
err = WSAStartup( wVersionRequested, &wsaData );
if ( err != 0 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
return;
}
/* Confirm that the WinSock DLL supports 2.2.*/
/* Note that if the DLL supports versions greater */
/* than 2.2 in addition to 2.2, it will still return */
/* 2.2 in wVersion since that is the version we */
/* requested. */
if ( LOBYTE( wsaData.wVersion ) != 1 ||
HIBYTE( wsaData.wVersion ) != 1 ) {
/* Tell the user that we could not find a usable */
/* WinSock DLL. */
WSACleanup( );
return;
}
/* The WinSock DLL is acceptable. Proceed. */
SOCKET sockClient = socket(AF_INET, SOCK_DGRAM, 0);
SOCKADDR_IN addrClient;
addrClient.sin_addr.S_un.S_addr = inet_addr("127.0.0.1");
addrClient.sin_family = AF_INET;
addrClient.sin_port = htons(6000);
sendto(sockClient, "你若此生若只如一瞬", strlen("你若此生若只如一瞬"), 0, (SOCKADDR *)&addrClient, sizeof(SOCKADDR));
closesocket(sockClient);
WSACleanup();
}