linux socket 設置從哪一個網絡設備發送數據 SO_BINDTODEVICE

m_SockFd = socket(AF_INET, SOCK_STREAM, 0); if (m_SockFd==-1) { LOG4CPLUS_ERROR(logger, "opening stream socket ," <<__FILE__ <<" , "<<__LINE__ ); return 1; } // 綁定網絡路由，eth0 or wlan0

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