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From: ked@garnet.berkeley.edu (Earl H. Kinmonth)
Newsgroups: comp.unix.xenix
Subject: undocumented ioctl() parameters
Message-ID: <21592@agate.BERKELEY.EDU>
Date: 14 Mar 89 05:14:53 GMT
Sender: usenet@agate.BERKELEY.EDU
Reply-To: ked@garnet.berkeley.edu (Earl H. Kinmonth)
Organization: University of California, Berkeley
Lines: 9

Browsing through /usr/include/sys/* in search of clock tick values, I
stumbled on a number of parameters for ioctl() calls pertaining to disk
format operations. Are these documented anywhere? If so, where? If not,
why are they not documented?

I have a version of tar that runs under **IX and MSDOS, and one feature
that I would like to add is the ability to detect unformatted disks and
format them on the fly. While this could be done with a system() call,
I'd like to do something a bit more elegant (and a bit faster).