Implement simple chat room functions in C language for your reference. The specific content is as follows
Server side
#define _CRT_SECURE_NO_WARNINGS #include<> #include<> #pragma comment(lib, "ws2_32.lib") #define L 256 int main() { char SendBuf[L]; char ReceiveBuf[L]; int SendLen; int ReceiveLen; int Length; SOCKET socket_server; SOCKET socket_receive; SOCKADDR_IN ServerAdd; SOCKADDR_IN ClientAdd; WORD wVR; WSADATA WsaData; int error; //++++++++++++++++++++++++++++++++++++++++++++++++ wVR = MAKEWORD(2, 2); error = WSAStartup(wVR, &WsaData); if (error != 0) { printf("Loading socket failed!"); return 0; } if (LOBYTE() != 2 || HIBYTE() != 2) { printf("The version does not match!"); WSACleanup(); return 0; } //++++++++++++++++++++++++++++++++++++++++++++++++ ServerAdd.sin_family = AF_INET; ServerAdd.sin_addr.S_un.S_addr = htonl(INADDR_ANY); ServerAdd.sin_port = htons(5000); //++++++++++++++++++++++++++++++++++++++++++++++++ socket_server = socket(AF_INET, SOCK_STREAM, 0); //++++++++++++++++++++++++++++++++++++++++++++++++ if (bind(socket_server, (SOCKADDR*)&ServerAdd, sizeof(SOCKADDR)) == SOCKET_ERROR) { printf("Binding failed!\n"); } //++++++++++++++++++++++++++++++++++++++++++++++++ if (listen(socket_server, 5) < 0) { printf("Supervisor failed!\n"); } Length = sizeof(SOCKADDR); socket_receive = accept(socket_server, (SOCKADDR*)&ClientAdd, &Length); if (socket_receive == SOCKET_ERROR) { printf("Accepting the connection failed!\n"); } while (1) { ReceiveLen = recv(socket_receive, ReceiveBuf, L, 0); if (ReceiveLen < 0) { printf("Accept failed\nProgram exit!\n"); break; } else { printf("client say:%s\n", ReceiveBuf); } //++++++++++++++++++++++++++++++++++++++++++++++++ printf("please enter message:"); scanf("%s", SendBuf); SendLen = send(socket_receive, SendBuf, L, 0); if (SendLen < 0) { printf("Send failed\n"); } } closesocket(socket_receive); closesocket(socket_server); return 0; }
Client
#define _CRT_SECURE_NO_WARNINGS #include<> #include<> #pragma comment(lib, "ws2_32.lib") #define L 256 int main() { char SendBuf[L]; char ReceiveBuf[L]; int SendLen; int ReceiveLen; int Length; SOCKET socket_send; SOCKADDR_IN ServerAdd; WORD wVR; WSADATA WsaData; int error; //++++++++++++++++++++++++++++++++++++++++++++++++ wVR = MAKEWORD(2, 2); error = WSAStartup(wVR, &WsaData); if (error != 0) { printf("Loading socket failed!"); return 0; } if (LOBYTE() != 2 || HIBYTE() != 2) { printf("The version does not match!"); WSACleanup(); return 0; } //++++++++++++++++++++++++++++++++++++++++++++++++ ServerAdd.sin_family = AF_INET; ServerAdd.sin_addr.S_un.S_addr = inet_addr("192.168.190.1"); ServerAdd.sin_port = htons(5000); //++++++++++++++++++++++++++++++++++++++++++++++++ socket_send = socket(AF_INET, SOCK_STREAM, 0); if (connect(socket_send, (SOCKADDR*)&ServerAdd, sizeof(SOCKADDR)) == SOCKET_ERROR) { printf("Connection failed!\n"); } //++++++++++++++++++++++++++++++++++++++++++++++++ while (1) { printf("please enter message:"); scanf("%s", SendBuf); SendLen = send(socket_send, SendBuf, L,0); if (SendLen < 0) { printf("Send failed!\n"); } //++++++++++++++++++++++++++++++++++++++++++++++++ ReceiveLen = recv(socket_send, ReceiveBuf, L, 0); if (ReceiveLen < 0) { printf("Accept failed!\nProgram Exit\n"); break; } else { printf("Server say:%s\n", ReceiveBuf); } } closesocket(socket_send); WSACleanup(); return 0; }
The above is all the content of this article. I hope it will be helpful to everyone's study and I hope everyone will support me more.