#include // for socket(), AF_INT, SOCK_STREAM #include // for EXIT_SUCCESS, EXIT_FAILURE #include // for strerror() #include // for close() #include // for std::cerr, std::endl using std::cerr; using std::endl; int main(int argc, char **argv) { int socket_fd = socket(AF_INET, SOCK_STREAM, 0); if (socket_fd == -1) { cerr << strerror(errno) << endl; return EXIT_FAILURE; } close(socket_fd); return EXIT_SUCCESS; }