115 leave_group(int sock, struct ip_mreq mreq, char *name);
132   struct ip_mreq mreq;  in main()  local
284     mreq.imr_multiaddr.s_addr = rcvr_addr.s_addr;  in main()
285     mreq.imr_interface.s_addr = htonl(INADDR_ANY);  in main()
286     ret = setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, (void*)&mreq,  in main()
287 		     sizeof(mreq));  in main()
427   	leave_group(sock, mreq, argv[0]);  in main()
453     	leave_group(sock, mreq, argv[0]);  in main()
482     leave_group(sock, mreq, argv[0]);  in main()
513 leave_group(int sock, struct ip_mreq mreq, char *name) {  in leave_group()  argument
516   ret = setsockopt(sock, IPPROTO_IP, IP_DROP_MEMBERSHIP, (void*)&mreq,  in leave_group()
517 		   sizeof(mreq));  in leave_group()