I am having a hard time finding man pages for the structures used in socket. So I am currently learning about them from a separate online tutorial. But it would be nice to know how to lookup these structures in the man pages itself.
I am using a Debian 8.3 Linux system.
For example, I found information about
You can find that specific structure by typing
man 7 ip and then searching manually for it or pressing / and typing
If you don't know what section to look in you can try using a quick search with
man -k sockaddr_in. If that doesn't give you the result you are looking for try brute-forcing it with
man -K sockaddr_in, this might be very slow because it will scan all the man files on your system.
@Jean-FrançoisFabre his comment about using a search engine is probably the fastest way to find the information you want though.