摘要：
1 void sock_Close(NLsocket socket) 2 { 3 nl_socket_t *sock = nlSockets[socket]; 4 struct ip_mreq mreq; 5 6 if(sock->type == NL_UDP_MULTICAST) 7 { 8 /* leave the multicast group */ 9 mreq.imr_multiaddr.s_addr = ((struct sockaddr_in *)&sock->addressout)->sin_addr.s_addr;10 mreq.imr_interf 阅读全文