Path: utzoo!utgpu!attcan!uunet!tut.cis.ohio-state.edu!mailrus!iuvax!rutgers!cmcl2!phri!marob!daveh
From: daveh@marob.masa.com (Dave Hammond)
Newsgroups: comp.lang.c
Subject: Re: ReadKey like Function in C
Message-ID: <24E2EF0E.907@marob.masa.com>
Date: 11 Aug 89 15:21:48 GMT
References: <148@trigon.UUCP> <207600029@s.cs.uiuc.edu> <941@lakesys.UUCP>
Reply-To: daveh@marob.masa.com (Dave Hammond)
Organization: ESCC,  New York City
Lines: 21

In article <941@lakesys.UUCP> davef@lakesys.UUCP (Dave Fenske) writes:
>In article <207600029@s.cs.uiuc.edu> mccaugh@s.cs.uiuc.edu writes:
>> Wait a minute -- am I missing something here? Isn't conventional (Kernighan-
>> Ritchie) C supoosed to be capable of system-calls to the operating-system
>> [...]
>Absolutely!  You need only do the following:
>
>1.  do an "ioctl (n, TCGETA, &term)
>2.  modify some parameters, such as
>    term.c_lflag &= ~(ICANON | ECHO)  or whatever else you need
>3.  term.c_cc [VTIME] = some_value  <- for timeout, if desired
>4.  term.c_cc [VMIN] = 1  <- satisfy read with 1 character
>5.  ioctl (m, TCSETA, &term)  to reset the terminal
>6.  you can now do a read (n, &work, 10)  

True enough -- on ONE of the dozens of systems on which C compilers exist.
Remember, the name of this newsgroup is NOT comp.lang.c.on.unix.system.v !

--
Dave Hammond
daveh@marob.masa.com