基于linux或windows平台上的c/s简单通信
linux:
tcpclient.cpp
- #include<iostream>
- #include<unistd.h>
- #include<sys/types.h>
- #include<sys/socket.h>
- #include<netdb.h>
- #include<arpa/inet.h>
- #include<cstring>
- #include<sstream>
- using namespace std;
- #define BUFSIZE 512
- // #define SERVERIP "192.168.41.32"
- // #define SERVERPORT 4140
- /*error report*/
- static void bail(const char *on_what){
- fputs(strerror(errno), stderr);
- fputs(": ", stderr);
- fputs(on_what, stderr);
- fputc('\n', stderr);
- exit();
- }
- void getarg(int argc,char* argv[],const char** SERVERIP,int* SERVERPORT)
- {
- for(int i=;i<argc;i++)
- {
- istringstream iss(argv[i]);
- string str;
- iss>>str;
- if(str=="ip")
- {
- *SERVERIP=argv[i+];
- }
- else if(str=="port")
- {
- istringstream sts(argv[i+]);
- string s_port;
- sts>>s_port;
- *SERVERPORT=stoi(s_port);
- }
- else
- {
- }
- }
- }
- int main(int argc,char *argv[])
- {
- const char* SERVERIP="192.168.43.230";
- int SERVERPORT=;
- getarg(argc,argv,&SERVERIP,&SERVERPORT);
- int sockfd;
- struct sockaddr_in server_addr;
- const char* sendbuf = (char*)"hello,this is client";
- char recvbuf[BUFSIZE];
- //create socket
- if ((sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) <)//创建套接字
- {
- fprintf(stderr,"Socket error %s\n",strerror(errno));
- exit(-);
- }
- memset(&server_addr,, sizeof(server_addr));
- server_addr.sin_family = AF_INET;
- server_addr.sin_port = htons(SERVERPORT);
- server_addr.sin_addr.s_addr = inet_addr(SERVERIP);
- if ((connect(sockfd, (struct sockaddr*) & server_addr, sizeof(struct sockaddr))) < )//连接远程对等实体
- {
- fprintf(stderr,"connect error %s\n",strerror(errno));
- exit(-);
- }
- if ((send(sockfd, sendbuf, strlen(sendbuf), )) != strlen(sendbuf))//发送数据
- {
- fprintf(stderr,"send error %s\n",strerror(errno));
- exit(-);
- }
- memset(recvbuf, '\0',sizeof(recvbuf));
- while (true)
- {
- int num = recv(sockfd, recvbuf, sizeof(recvbuf), );//接受数据
- if (num < )
- {
- fprintf(stderr,"recv error %s\n",strerror(errno));
- exit(-);
- }
- else
- {
- cout << recvbuf << endl;
- break;
- }
- }
- cout<<"exit..."<<endl;
- close(sockfd);//终止通信并释放套接字描述符
- return ;
- }
tcpserv.cpp
- #include<iostream>
- #include<string.h>
- #include <unistd.h>
- #include<sys/types.h>
- #include<sys/socket.h>
- #include<netdb.h>
- #include<arpa/inet.h>
- #define BUFSIZE 512
- #define PORT 4140
- #define MAXLISTEN 128
- /*error report*/
- static void bail(const char *on_what){
- fputs(strerror(errno), stderr);
- fputs(": ", stderr);
- fputs(on_what, stderr);
- fputc('\n', stderr);
- exit();
- }
- int main()
- {
- int sockfd;//server fd
- // int port;
- int newfd;//connect fd
- struct sockaddr_in server_addr;
- struct sockaddr_in client_addr;
- char reqbuf[BUFSIZE];
- /*create server socket*/
- if((sockfd=socket(AF_INET,SOCK_STREAM,))<)//创建套接字
- {
- fprintf(stderr,"Socket error %s\n",strerror(errno));
- exit(-);
- }
- /*ready for server addr*/
- memset(&server_addr,,sizeof(server_addr));
- server_addr.sin_family=AF_INET;
- server_addr.sin_addr.s_addr=htonl(INADDR_ANY);
- server_addr.sin_port=htons(PORT);
- /*bind socket addr*/
- int tmp=bind(sockfd,(struct sockaddr*)&server_addr,sizeof(server_addr));//将ip和port绑定到套接字上
- if(tmp<)
- {
- fprintf(stderr,"Bind error %s\n",strerror(errno));
- exit(-);
- }
- /*listen*/
- if((listen(sockfd,MAXLISTEN))<)//将套接字设置为被动模式
- {
- fprintf(stderr,"Listen error %s\n",strerror(errno));
- exit(-);
- }
- std::cout<<"waiting for client ..."<<std::endl;
- /*server main while*/
- // while(true)
- // {
- socklen_t size;
- size=sizeof(struct sockaddr_in);
- /*accept client & create new fd*/
- if((newfd=accept(sockfd,(struct sockaddr*)&client_addr,&size))<)//接受传入连接请求
- {
- fprintf(stderr,"Accept error %s\n",strerror(errno));
- exit(-);
- }
- std::cout<<"Server got connect from "<<inet_ntoa(client_addr.sin_addr)<<std::endl;
- /*recv data from client*/
- if((recv(newfd,reqbuf,sizeof(reqbuf),))<)//获取数据
- {
- fprintf(stderr,"Recv error %s\n",strerror(errno));
- exit(-);
- }
- std::cout<<reqbuf<<std::endl;
- /*send data to client*/
- char *sendbuf=(char*)"hello,this is server.";
- if((send(newfd,sendbuf,strlen(sendbuf),))!=strlen(sendbuf))//发送数据
- {
- fprintf(stderr,"Send error %s\n",strerror(errno));
- exit(-);
- }
- /*close new fd*/
- close(newfd);//终止通信并释放套接字描述符
- // }
- /*close server fd*/
- close(sockfd);//释放套接字描述符
- std::cout<<"exit"<<std::endl;
- return ;
- }
udpclient.cpp
- #include<iostream>
- #include <unistd.h>
- #include<sys/types.h>
- #include<sys/socket.h>
- #include<netdb.h>
- #include<arpa/inet.h>
- #include<cstring>
- #include<sstream>
- using namespace std;
- #define BUFSIZE 512
- // #define SERVERIP "192.168.2.169"
- // #define SERVERPORT 4140
- /*error report*/
- static void bail(const char *on_what){
- fputs(strerror(errno), stderr);
- fputs(": ", stderr);
- fputs(on_what, stderr);
- fputc('\n', stderr);
- exit();
- }
- void getarg(int argc,char* argv[],const char** SERVERIP,int* SERVERPORT)
- {
- for(int i=;i<argc;i++)
- {
- istringstream iss(argv[i]);
- string str;
- iss>>str;
- if(str=="ip")
- {
- *SERVERIP=argv[i+];
- }
- else if(str=="port")
- {
- istringstream sts(argv[i+]);
- string s_port;
- sts>>s_port;
- *SERVERPORT=stoi(s_port);
- }
- else
- {
- }
- }
- }
- int main(int argc,char* argv[])
- {
- const char* SERVERIP="192.168.41.32";
- int SERVERPORT=;
- getarg(argc,argv,&SERVERIP,&SERVERPORT);
- int sockfd;
- struct sockaddr_in server_addr;
- struct sockaddr_in client_addr;
- char* sendbuf = (char*)"hello,this is client";
- char recvbuf[BUFSIZE];
- //create socket
- if ((sockfd = socket(AF_INET, SOCK_DGRAM,)) <)//创建套接字描述符
- {
- fprintf(stderr,"socket error %s\n",strerror(errno));
- exit(-);
- }
- memset(&server_addr, ,sizeof(server_addr));
- server_addr.sin_family = AF_INET;
- server_addr.sin_port = htons(SERVERPORT);
- server_addr.sin_addr.s_addr = inet_addr(SERVERIP);
- // if ((connect(sockfd, (struct sockaddr*) & server_addr, sizeof(struct sockaddr))) < 0)
- // {
- // cout << "Connect Error::" << GetLastError() << endl;
- // return -1;
- // }
- if ((sendto(sockfd, sendbuf, strlen(sendbuf), ,(struct sockaddr*)&server_addr,sizeof(struct sockaddr_in))) != strlen(sendbuf))//发送数据
- {
- fprintf(stderr,"sendto error %s\n",strerror(errno));
- exit(-);;
- }
- memset(&client_addr,,sizeof(client_addr));
- memset(recvbuf, '\0',sizeof(recvbuf));
- while (true)
- {
- socklen_t len=sizeof(struct sockaddr_in);
- int num = recvfrom(sockfd, recvbuf, sizeof(recvbuf), ,(struct sockaddr*)&client_addr,&len);//获取数据
- if (num < )
- {
- fprintf(stderr,"Socket error %s\n",strerror(errno));
- exit(-);
- }
- else
- {
- cout << recvbuf << endl;
- break;
- }
- }
- close(sockfd);//终止通信并释放套接字描述符
- return ;
- }
udpserv.cpp
- #include<iostream>
- #include<string.h>
- #include <unistd.h>
- #include<sys/types.h>
- #include<sys/socket.h>
- #include<netdb.h>
- #include<arpa/inet.h>
- // #include<signal.h>
- #define BUFSIZE 512
- #define PORT 4140
- #define MAXLISTEN 128
- /*error report*/
- static void bail(const char *on_what){
- fputs(strerror(errno), stderr);
- fputs(": ", stderr);
- fputs(on_what, stderr);
- fputc('\n', stderr);
- exit();
- }
- int main()
- {
- int sockfd;//server fd
- // int port;
- int newfd;//connect fd
- struct sockaddr_in server_addr;
- struct sockaddr_in client_addr;
- char reqbuf[BUFSIZE];
- /*create server socket*/
- if((sockfd=socket(AF_INET,SOCK_DGRAM,))<)//创建套接字描述符
- {
- fprintf(stderr,"Socket error %s\n",strerror(errno));
- exit(-);
- }
- /*ready for server addr*/
- memset(&server_addr,,sizeof(server_addr));
- server_addr.sin_family=AF_INET;
- server_addr.sin_addr.s_addr=htonl(INADDR_ANY);
- server_addr.sin_port=htons(PORT);
- /*bind socket addr*/
- if((bind(sockfd,(struct sockaddr*)&server_addr,sizeof(server_addr)))<)//将ip和port绑定到套接字上
- {
- fprintf(stderr,"Bind error %s\n",strerror(errno));
- exit(-);
- }
- /*server main while*/
- // while(true)
- // {
- socklen_t size;
- size=sizeof(struct sockaddr_in);
- memset(&client_addr,,sizeof(client_addr));
- /*recv data from client*/
- if((recvfrom(sockfd,reqbuf,sizeof(reqbuf),,(struct sockaddr*)&client_addr,&size))<)//获取数据
- {
- fprintf(stderr,"Recvfrom error %s\n",strerror(errno));
- exit(-);
- }
- std::cout<<reqbuf<<std::endl;
- /*send data to client*/
- char *sendbuf=(char*)"hello,this is server.";
- if((sendto(sockfd,sendbuf,strlen(sendbuf),,(struct sockaddr*)&client_addr,size))!=strlen(sendbuf))//发送数据
- {
- fprintf(stderr,"Sendto error %s\n",strerror(errno));
- exit(-);
- }
- // }
- /*close server fd*/
- close(sockfd);//终止通信并释放套接字描述符
- std::cout<<"exit"<<std::endl;
- return ;
- }
windows:
tcpclient.cpp
- #include<iostream>
- #include<WinSock2.h>
- #include<cstring>
- #include<sstream>
- #pragma comment(lib, "ws2_32")
- using namespace std;
- // #define SERVERIP "192.168.41.32"
- // #define SERVERPORT 4140
- void getarg(int argc,char* argv[],const char** SERVERIP,int* SERVERPORT)
- {
- for(int i=;i<argc;i++)
- {
- istringstream iss(argv[i]);
- string str;
- iss>>str;
- if(str=="ip")
- {
- *SERVERIP=argv[i+];
- }
- else if(str=="port")
- {
- istringstream sts(argv[i+]);
- string s_port;
- sts>>s_port;
- *SERVERPORT=stoi(s_port);
- }
- else
- {
- }
- }
- }
- int main(int argc,char *argv[])
- {
- const char* SERVERIP="192.168.41.32";
- int SERVERPORT=;
- getarg(argc,argv,&SERVERIP,&SERVERPORT);
- SOCKET sockfd;
- struct sockaddr_in server_addr;
- WSADATA ws;
- const char* sendbuf = (char*)"hello,this is client";
- char recvbuf[MAX_PATH];
- //init windows socket
- if (WSAStartup(MAKEWORD(, ), &ws) != )
- {
- cout << "Init Windows Socket Failed::" << GetLastError() << endl;
- return -;
- }
- //create socket
- if ((sockfd = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) == INVALID_SOCKET)//创建套接字描述符
- {
- cout << "Create Socket Failed::" << GetLastError() << endl;
- return -;
- }
- ZeroMemory(&server_addr, sizeof(server_addr));
- server_addr.sin_family = AF_INET;
- server_addr.sin_port = htons(SERVERPORT);
- server_addr.sin_addr.S_un.S_addr = inet_addr(SERVERIP);
- if ((connect(sockfd, (struct sockaddr*) & server_addr, sizeof(struct sockaddr))) < )//连接远程对等实体
- {
- cout << "Connect Error::" << GetLastError() << endl;
- return -;
- }
- if ((send(sockfd, sendbuf, strlen(sendbuf), )) != strlen(sendbuf))//发送数据
- {
- cout << "Send Error::" << GetLastError() << endl;
- return -;
- }
- ZeroMemory(recvbuf, sizeof(recvbuf));
- while (true)
- {
- int num = recv(sockfd, recvbuf, sizeof(recvbuf), );//获取数据
- if (num < )
- {
- cout << "Recv Error::" << GetLastError() << endl;
- return -;
- }
- else
- {
- cout << recvbuf << endl;
- break;
- }
- }
- cout<<"exit..."<<endl;
- closesocket(sockfd);//终止通信并释放套接字
- WSACleanup();
- system("pause");
- return ;
- }
tcpserver.cpp
- #include<iostream>
- #include<WinSock2.h>
- // #include<cstring>
- // #include<unistd.h>
- #pragma comment(lib, "ws2_32")
- using namespace std;
- #define BUFSIZE 512
- #define PORT 4140
- #define MAXLISTEN 128
- /*error report*/
- static void bail(const char *on_what){
- fputs(strerror(errno), stderr);
- fputs(": ", stderr);
- fputs(on_what, stderr);
- fputc('\n', stderr);
- exit();
- }
- int main()
- {
- SOCKET sockfd;//server fd
- // int port;
- SOCKET newfd;//connect fd
- struct sockaddr_in server_addr;
- struct sockaddr_in client_addr;
- WSADATA ws;
- char reqbuf[BUFSIZE];
- //init windows socket
- if(WSAStartup(MAKEWORD(,),&ws)!=)
- {
- cout << "Init Windows Socket Failed::" << GetLastError() << endl;
- exit(-);
- }
- /*create server socket*/
- if((sockfd=socket(AF_INET,SOCK_STREAM,))==INVALID_SOCKET)//创建套接字描述符
- {
- fprintf(stderr,"Socket error %s\n",strerror(errno));
- exit(-);
- }
- /*ready for server addr*/
- ZeroMemory(&server_addr,sizeof(server_addr));
- ZeroMemory(&reqbuf,sizeof(reqbuf));
- server_addr.sin_family=AF_INET;
- server_addr.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
- server_addr.sin_port=htons(PORT);
- /*bind socket addr*/
- int tmp=bind(sockfd,(struct sockaddr*)&server_addr,sizeof(server_addr));//将ip和port绑定到套接字上
- if(tmp<)
- {
- fprintf(stderr,"Bind error %s\n",strerror(errno));
- exit(-);
- }
- /*listen*/
- if((listen(sockfd,MAXLISTEN))<)//设置为被动模式
- {
- fprintf(stderr,"Listen error %s\n",strerror(errno));
- exit(-);
- }
- cout<<"waiting for client ..."<<endl;
- /*server main while*/
- // while(true)
- // {
- int size;
- size=sizeof(struct sockaddr_in);
- /*accept client & create new fd*/
- if((newfd=accept(sockfd,(struct sockaddr*)&client_addr,&size))<)//接受传入请求
- {
- fprintf(stderr,"Accept error %s\n",strerror(errno));
- exit(-);
- }
- cout<<"Server got connect from "<<inet_ntoa(client_addr.sin_addr)<<endl;
- /*recv data from client*/
- if((recv(newfd,reqbuf,sizeof(reqbuf),))<)//获取数据
- {
- fprintf(stderr,"Recv error %s\n",strerror(errno));
- exit(-);
- }
- cout<<reqbuf<<endl;
- /*send data to client*/
- char *sendbuf=(char*)"hello,this is server.";
- if((send(newfd,sendbuf,strlen(sendbuf),))!=strlen(sendbuf))//发送数据
- {
- fprintf(stderr,"Send error %s\n",strerror(errno));
- exit(-);
- }
- /*close new fd*/
- closesocket(newfd);//终止通信并释放套接字
- // }
- /*close server fd*/
- closesocket(sockfd);//释放套接字
- WSACleanup();
- cout<<"exit"<<endl;
- return ;
- }
udpclient.cpp
- #include<iostream>
- #include<WinSock2.h>
- #include<sstream>
- #pragma comment(lib, "ws2_32")
- using namespace std;
- // #define SERVERIP "192.168.2.169"
- // #define SERVERPORT 4140
- void getarg(int argc,char* argv[],const char** SERVERIP,int* SERVERPORT)
- {
- for(int i=;i<argc;i++)
- {
- istringstream iss(argv[i]);
- string str;
- iss>>str;
- if(str=="ip")
- {
- *SERVERIP=argv[i+];
- }
- else if(str=="port")
- {
- istringstream sts(argv[i+]);
- string s_port;
- sts>>s_port;
- *SERVERPORT=stoi(s_port);
- }
- else
- {
- }
- }
- }
- int main(int argc,char* argv[])
- {
- const char* SERVERIP="192.168.41.32";
- int SERVERPORT=;
- getarg(argc,argv,&SERVERIP,&SERVERPORT);
- SOCKET sockfd;
- struct sockaddr_in server_addr;
- struct sockaddr_in client_addr;
- WSADATA ws;
- char* sendbuf = (char*)"hello,this is client";
- char recvbuf[MAX_PATH];
- //init windows socket
- if (WSAStartup(MAKEWORD(, ), &ws) != )
- {
- cout << "Init Windows Socket Failed::" << GetLastError() << endl;
- return -;
- }
- //create socket
- if ((sockfd = socket(AF_INET, SOCK_DGRAM,)) == INVALID_SOCKET)//创建套接字描述符
- {
- cout << "Create Socket Failed::" << GetLastError() << endl;
- return -;
- }
- ZeroMemory(&server_addr, sizeof(server_addr));
- server_addr.sin_family = AF_INET;
- server_addr.sin_port = htons(SERVERPORT);
- server_addr.sin_addr.S_un.S_addr = inet_addr(SERVERIP);
- // if ((connect(sockfd, (struct sockaddr*) & server_addr, sizeof(struct sockaddr))) < 0)
- // {
- // cout << "Connect Error::" << GetLastError() << endl;
- // return -1;
- // }
- if ((sendto(sockfd, sendbuf, strlen(sendbuf), ,(struct sockaddr*)&server_addr,sizeof(struct sockaddr_in))) != strlen(sendbuf))//发送数据
- {
- cout << "Send Error::" << GetLastError() << endl;
- return -;
- }
- ZeroMemory(&client_addr,sizeof(client_addr));
- ZeroMemory(recvbuf, sizeof(recvbuf));
- while (true)
- {
- int len=sizeof(struct sockaddr_in);
- int num = recvfrom(sockfd, recvbuf, sizeof(recvbuf), ,(struct sockaddr*)&client_addr,&len);//获取数据
- if (num < )
- {
- cout << "Recv Error::" << GetLastError() << endl;
- return -;
- }
- else
- {
- cout << recvbuf << endl;
- break;
- }
- }
- closesocket(sockfd);//终止通信并释放套接字
- WSACleanup();
- system("pause");
- return ;
- }
udpserver.cpp
- #include<iostream>
- #include<winsock2.h>
- // #include<string.h>
- // #include<unistd.h>
- #pragma comment(lib, "ws2_32")
- using namespace std;
- #define BUFSIZE 512
- #define PORT 4140
- #define MAXLISTEN 128
- /*error report*/
- static void bail(const char *on_what){
- fputs(strerror(errno), stderr);
- fputs(": ", stderr);
- fputs(on_what, stderr);
- fputc('\n', stderr);
- exit();
- }
- int main()
- {
- int sockfd;//server fd
- // int port;
- int newfd;//connect fd
- WSADATA ws;
- struct sockaddr_in server_addr;
- struct sockaddr_in client_addr;
- char reqbuf[BUFSIZE];
- // signal(SIGINT,my_handler);
- //init windows socket
- if(WSAStartup(MAKEWORD(,),&ws)!=)
- {
- cout << "Init Windows Socket Failed::" << GetLastError() << endl;
- exit(-);
- }
- /*create server socket*/
- if((sockfd=socket(AF_INET,SOCK_DGRAM,))<)//创建套接字描述符
- {
- fprintf(stderr,"Socket error %s\n",strerror(errno));
- exit(-);
- }
- /*ready for server addr*/
- ZeroMemory(&server_addr,sizeof(server_addr));
- server_addr.sin_family=AF_INET;
- server_addr.sin_addr.S_un.S_addr=htonl(INADDR_ANY);
- server_addr.sin_port=htons(PORT);
- /*bind socket addr*/
- if((bind(sockfd,(struct sockaddr*)&server_addr,sizeof(server_addr)))==INVALID_SOCKET)//将ip和port绑定到套接字上
- {
- fprintf(stderr,"Bind error %s\n",strerror(errno));
- exit(-);
- }
- /*server main while*/
- // while(true)
- // {
- int size;
- size=sizeof(struct sockaddr_in);
- memset(&client_addr,,sizeof(client_addr));
- /*recv data from client*/
- if((recvfrom(sockfd,reqbuf,sizeof(reqbuf),,(struct sockaddr*)&client_addr,&size))<)//获取数据
- {
- fprintf(stderr,"Recvfrom error %s\n",strerror(errno));
- exit(-);
- }
- cout<<reqbuf<<endl;
- /*send data to client*/
- char *sendbuf=(char*)"hello,this is server.";
- if((sendto(sockfd,sendbuf,strlen(sendbuf),,(struct sockaddr*)&client_addr,size))!=strlen(sendbuf))//发送数据
- {
- fprintf(stderr,"Sendto error %s\n",strerror(errno));
- exit(-);
- }
- // }
- /*close server fd*/
- closesocket(sockfd);//终止通信并释放套接字
- WSACleanup();
- cout<<"exit"<<endl;
- return ;
- }
参考:
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