#include #include #include #include #include #include #include #include #include char response[] = "HTTP/1.1 200 OK\r\n" "Content-Type: text/html; charset=UTF-8\r\n\r\n" "Bye-bye baby bye-bye" "" "

Goodbye, world!

\r\n"; int main() { int one = 1, client_fd; struct sockaddr_in svr_addr, cli_addr; socklen_t sin_len = sizeof(cli_addr); int sock = socket(AF_INET, SOCK_STREAM, 0); if (sock < 0) err(1, "can't open socket"); setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(int)); int port = 8080; svr_addr.sin_family = AF_INET; svr_addr.sin_addr.s_addr = INADDR_ANY; svr_addr.sin_port = htons(port); if (bind(sock, (struct sockaddr *) &svr_addr, sizeof(svr_addr)) == -1) { close(sock); err(1, "Can't bind"); } listen(sock, 5); while (1) { client_fd = accept(sock, (struct sockaddr *) &cli_addr, &sin_len); printf("got connection\n"); if (client_fd == -1) { perror("Can't accept"); continue; } write(client_fd, response, sizeof(response) - 1); /*-1:'\0'*/ close(client_fd); } }