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sudo apt-get install cmake
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mkdir MyNetworkApp && cd MyNetworkApp cmake .
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cmake_minimum_required(VERSION 3.10) project(MyNetworkApp)
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add_executable(MyNetworkApp network.cpp)
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set(CMAKE_CXX_STANDARD 11)
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target_link_libraries(MyNetworkApp ${SOME_LIBRARY})
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cmake --build .
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./MyNetworkApp
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#include <iostream> #include <sys/socket.h> #include <netinet/in.h> #include <arpa/inet.h> int main() { int server_fd, new_socket; struct sockaddr_in address; int opt = 1; int addrlen = sizeof(address); char buffer[1024] = {0}; const char* welcomeMessage = "Welcome to My Network App "; // ½¨ÉèÌ×½Ó×Ö if ((server_fd = socket(AF_INET, SOCK_STREAM, 0)) == 0) { perror("socket failed"); exit(EXIT_FAILURE); } // ÉèÖÃÌ×½Ó×ÖÑ¡Ïî if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR | SO_REUSEPORT, &opt, sizeof(opt))) { perror("setsockopt"); exit(EXIT_FAILURE); } address.sin_family = AF_INET; address.sin_addr.s_addr = INADDR_ANY; address.sin_port = htons(8080); // °ó¶¨Ì×½Ó×Öµ½Ìض¨¶Ë¿Ú if (bind(server_fd, (struct sockaddr *)&address, sizeof(address))<0) { perror("bind failed"); exit(EXIT_FAILURE); } // ¼àÌý¶Ë¿Ú£¬×î¶àÅþÁ¬10¸ö¿Í»§¶Ë if (listen(server_fd, 10) < 0) { perror("listen"); exit(EXIT_FAILURE); } // ÎüÊÕ¿Í»§¶ËÅþÁ¬ÇëÇ󣬲¢·¢ËͽӴýÐÂÎÅ if ((new_socket = accept(server_fd, (struct sockaddr *)&address, (socklen_t*)&addrlen))<0) { perror("accept"); exit(EXIT_FAILURE); } send(new_socket, welcomeMessage, strlen(welcomeMessage), 0); printf("Welcome message sent "); return 0; }
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