Get UDP destination IP address

[teckhaokoh]

I'm working on an application that running on UDP protocol.
I will need to differentiate the type of message whether it's broadcast or unicast.

I found that recvmsg() able to get me the IP headers message, which contained the destination IP address, so that I can identify from there. But, I couldn't get any info on recvmsg() in ESP32 API. recvmsg() is not supported in esp-idf?

Any suggestion of alternative API or methods available to identify whether it's broadcast message?