（四）一年以内曾受过治安管理处罚的。
bind(nlsock, (struct sockaddr *)&sa_nl, sizeof(sa_nl));
。关于这个话题，新收录的资料提供了深入分析
And… that's it! At this point, recv, recvmsg, and similar syscalls can be used to obtain data. The example code above performs some extra work to dynamically resize buffers and to receive Unix credentials, but we can ignore all of that for now.
Read the full story at The Verge.
，推荐阅读新收录的资料获取更多信息
В Нигерии террористы расправились с прихожанами РПЦ01:28
Design philosophy，详情可参考新收录的资料