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Re: Macnetworkprog Digest, Vol 1, Issue 74
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Re: Macnetworkprog Digest, Vol 1, Issue 74


  • Subject: Re: Macnetworkprog Digest, Vol 1, Issue 74
  • From: Mike Cohen <email@hidden>
  • Date: Thu, 16 Dec 2004 16:16:40 -0500

The usual way is to call gethostbyname, which takes a host name and returns am address (as part of the returned structure) that you can pass to connect.

On Dec 16, 2004, at 3:45 PM, Ryan M Joseph wrote:

I unfortunately don't understand much about addresses besides IPs and even then not much. The problem still remains I don't know enough about the protocol to fill in the fields properly. For example the IP 128.0.0.0, how can I describe THAT with the sockaddr. Is there a reference location of this information or a function that could convert an IP into a sockaddr (like OT maybe)? My real issue I think is not knowing the low-level interpretation of IPs. Thanks again.

sockaddr is a generic thingy, that allows a single set of function to calls to work with different types of address (ipv4, ipv6, other stuff).
Various protocols give different meaning to the bytes that follow the sin_length and sin_family fields, for ipv4 stuff this is defined by the sockaddr_in structure.


Fred


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 >Re: Macnetworkprog Digest, Vol 1, Issue 74 (From: Ryan M Joseph <email@hidden>)

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