gethostbyname(p1) public

Use Addrinfo.getaddrinfo instead. This method is deprecated for the following reasons:

  • The 3rd element of the result is the address family of the first address. The address families of the rest of the addresses are not returned.

  • gethostbyname() may take a long time and it may block other threads. (GVL cannot be released since gethostbyname() is not thread safe.)

  • This method uses gethostbyname() function already removed from POSIX.

This method lookups host information by hostname.

#=> ["localhost", ["hal"], 2, ""]
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