AF_INET versus PF_INET question

Tuan Hoang (tuan@optimus.mitre.org)
Mon, 19 Apr 1999 10:21:16 -0400 (EDT)


Hi,

I can't seem to find info on why there's both a AF_INET and PF_INET.
Or in general why there are address families and protocol families.
Can anyone explain why we have both? Which is older/newer?
Also, as good programming practice, should one be used instead of the
other or mixed, etc..?

Thanks,
Tuan

--
Tuan Hoang
Senior Software Systems Engineer
The MITRE Corporation
Email: tuan@optimus.mitre.org
Voice: (732)389-6791
Fax:   (732)544-8863

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