Path: utzoo!utgpu!water!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!cornell!uw-beaver!ssc-vax!uvicctr!tholm
From: tholm@uvicctr.UUCP (Terrence W. Holm)
Newsgroups: comp.os.minix
Subject: write(1)
Message-ID: <480@uvicctr.UUCP>
Date: 26 Aug 88 00:13:56 GMT
Reply-To: tholm@uvicctr.UUCP (Terrence W. Holm)
Organization: University of Victoria, Victoria B.C. Canada
Lines: 64

EFTH MINIX report #36  - August 1988 -  write(1)


There follows an implementation of write(1) for Minix.
Please consider this public domain software.

A "man" page is included.

[Note: the first two echo's should contain a ^G.]


----------------------------------------------------------
echo x - write.1
gres '^X' '' > write.1 << '/'
XCOMMANDS
X    write(1)		- write to another user
X
XINVOCATION
X    write  ttyn
X
XEXPLANATION
X    Write(1) copies lines typed at your terminal to the
X    user signed on at device /dev/<ttyn>. When the
X    unidirectional connection is made the terminal bell
X    is sounded and the other user is notified of your
X    request by a line of the following form,
X
X	Message from user (/dev/ttym) ...
X
X    The other user can use write(1) to reply. The end of the
X    conversation is signaled by hitting the end-of-file key
X    or an INTERRUPT signal (usually DELETE).
X
X    The error message "Permission denied" means that the
X    device /dev/<ttyn> does not exist.
X
XREFERENCES
X    talk(1)
X
XPROBLEMS
X    MINIX does not support mesg(1).
/
echo x - write
gres '^X' '' > write << '/'
X#  write(1)
X
Xtrap ':' 2
X
Xif echo  2>/dev/null >/dev/$1; then
X  echo -n 
X  echo Message from `whoami` \(`tty`\) ... >/dev/$1
X  cat -u   >/dev/$1
X  echo EOT >/dev/$1
Xelse
X   echo Permission denied
Xfi
/
----------------------------------------------------------

		Edwin L. Froese
		  uw-beaver!ubc-cs!mprg!handel!froese

		Terrence W. Holm
		  uw-beaver!uvicctr!tholm