c - Can a socket join more than one multicast group?

Question

I am implementing an application intends a socket to join more than multicast group? So, Can a socket join more than one multicast group?

Answer 1

请参阅此问题及其中提供的答案：Subscribing to multiple multicast groups on one socket (Linux, C)

更长的答案是：是的，您可以使用带有 IP_ADD_MEMBERSHIP 选项的适当 setsockopt() 调用（引用：https ://stackoverflow.com/a/9258030/1284631 ）