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在C中使用数据报套接字

[英]Receiveing using Datagram socket in C

Since UDP is connectionless, is it possible for a single UDP socket/port on a client to receive packets from different servers(connections)? 由于UDP是无连接的,客户端上的单个UDP套接字/端口是否可以接收来自不同服务器(连接)的数据包? Or would it need separate connections to receive from each server? 或者它需要从每个服务器接收单独的连接?

I am designing a client which receives packets from 5 servers using UDP. 我正在设计一个客户端,它使用UDP从5台服务器接收数据包。 Does this require me to create 5 sockets each on different ports on my client? 这是否要求我在客户端的不同端口上创建5个套接字? Or can i receive data using a single port/socket at my client? 或者我可以在客户端使用单个端口/套接字接收数据吗?

Any help would be appreciated. 任何帮助,将不胜感激。 Thanks! 谢谢!

You can send and receive datagrams from multiple clients at the same time. 您可以同时从多个客户端发送和接收数据报。 for this you'd use sendto() and recvfrom() . 为此你要使用sendto()recvfrom()

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