IP_ADD_SOURCE_MEMBERSHIP
|| option == IP_ADD_SOURCE_MEMBERSHIP
|| option == IP_ADD_SOURCE_MEMBERSHIP
case IP_ADD_SOURCE_MEMBERSHIP:
case IP_ADD_SOURCE_MEMBERSHIP:
return IP_ADD_SOURCE_MEMBERSHIP;
SOCKET_OPTION_INFO_ENTRY(IPPROTO_IP, IP_ADD_SOURCE_MEMBERSHIP),
#ifndef IP_ADD_SOURCE_MEMBERSHIP
if (setsockopt(fd, IPPROTO_IP, IP_ADD_SOURCE_MEMBERSHIP, &mrs,