Re: Macnetworkprog Digest, Vol 1, Issue 74
Re: Macnetworkprog Digest, Vol 1, Issue 74
- Subject: Re: Macnetworkprog Digest, Vol 1, Issue 74
- From: Frederick Cheung <email@hidden>
- Date: Thu, 16 Dec 2004 20:29:24 +0000
Date: Thu, 16 Dec 2004 08:17:30 -0700
From: Ryan M Joseph <email@hidden>
Subject: how to use: struct sockaddr
To: email@hidden
Message-ID: <email@hidden>
Content-Type: text/plain; charset="us-ascii"
I have a simple question that has me very confused. I'm trying to use
CFSocket to set up a client/server over the internet but I can not
understand how the sockaddr struct can be used to describe and IP
address. Is is not intended to do this? do I need to use some other
form of address then an IP? Or is there a function I can not find which
maybe builds the struct for you based off an IP string? Thanks for your
help.
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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