[GitHub] [incubator-nuttx] github-liyi commented on pull request #6731: make sure conn's domain is match with addr's family

[GitBox <gi...@apache.org>]

github-liyi commented on PR #6731:
URL: https://github.com/apache/incubator-nuttx/pull/6731#issuecomment-1198843722

   > ## Summary
   > add protection in the case when conn's domain isn't match with addr's family. When you create a IPv4 socket and connect to an IPv6 address, the original code logic will use the input IPv6 address as a IPv4 address only because the socket's domain is created in AF_INET! This patch is to avoid this case, in which it refuses the connection and return EPROTOTYPE（error protocol type）
   > 
   > ## Impact
   > When you use nuttx's socket in a wrong way, it will refuse this wrong operation
   > 
   > ## Testing
   > Testing cases has been done with nuttx sim program for example ping [www.baidu.com（UDP](http://www.baidu.com%EF%BC%88UDP) packet, DNS pkts） wget [http://www.baidu.com（TCP](http://www.baidu.com%EF%BC%88TCP) packet, HTTP pkts）
   
   


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