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000260_news@newsmaster….columbia.edu _Thu Aug 28 10:23:23 1997.msg
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From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Newsgroups: comp.protocols.kermit.misc,comp.unix.questions,comp.unix.admin,comp.unix.misc,comp.unix.ultrix,comp.unix.shell
Subject: Re: Do not get connected at 33.6K
Date: 28 Aug 1997 14:23:19 GMT
Organization: Columbia University
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Message-ID: <5u41kn$5sb$1@apakabar.cc.columbia.edu>
References: <5tsn5b$o9q@newslink.runet.edu> <5u1fh6$n39$1@apakabar.cc.columbia.edu> <5u1mrf$il7@usenet.srv.cis.pitt.edu> <5u289d$3qi$1@nntp.Stanford.EDU>
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In article <5u289d$3qi$1@nntp.Stanford.EDU>,
Jonathan Stone <jonathan@DSG.Stanford.EDU> wrote:
: The preferred Ultrix software interface for ttys is POSIX-compatible
: termios. I have no idea what C-Kermit uses.
:
Not to prolong this unnecessarily, but C-Kermit supports all versions of
Ultrix back to 1.0, which probably predates POSIX.1. I'm perfectly willing
to add any code necessary to support higher serial speeds and hardware flow
control, but I have yet to see any evidence that these are supported by any
version of Ultrix. If there is an API that I don't know about, plese let
me know (a) what it is, and (b) in exactly which Ultrix version it first
appeared, so I can add support for it in a way that does not break C-Kermit
for earlier Ultrix versions. I have access to exactly one Ultrix system
(4.3C), and searching through /usr/include/*.h and /usr/include/sys/*.h
does not turn up any B57600 or higher symbols, nor any of the commonly used
symbols associated with hardware flow control (CRTSCTS, RTSXOFF, CTSXON, ...)
Have I missed something?
Finally, regarding all the jumpers, external clocks, etc, obviously those
are not Kermit issues, but I trust that if some Ultrix version supports
some baud rate, say B57600, and the software tries to set it on a physical
device that does not support it, that the driver will return the appropriate
error status code.
- Frank