Subject: tip mangles characters
To: None <email@example.com>
From: Klaus Heinz <firstname.lastname@example.org>
Date: 03/23/2002 22:49:44
I try to establish a serial connection between two machines, with a
nullmodem cable. The cable works, I have used it before in other situations.
tip(1) was the program I have used before (e.g on Solaris) and I naturally
wanted to use it with NetBSD, too. The following line was added to
When I use tip to establish a connection, everything looks ok (the other
side is the serial console of a NetBSD box):
$ tip hard
root device (default ex0):
Pressing the RETURN key makes the cursor jump to the first column
in the same line. The opposite system doesn't seem to receive a newline
character. Only typing CTRL-j sends a newline.
But the strangest behaviour is this:
$ tip hard
root device (default ex0): qwertzu
len = 7| |q|=71 |w|=77 |e|=65 |r|=72 |t|=74 |z|=fa |u|=f5|
I have modified the opposite side to see what it receives. Obviously
my side sends the correct code for qwert but _not_ for z and u. The
other side receives the code for z+0x80. Other characters behave the
|1|=b1 |2|=b2 |3|=33 |4|=b4 |5|=35 |6|=36 |7|=b7 |8|=b8 |9|=39 |0|=30|
|q|=71 |w|=77 |e|=65 |r|=72 |t|=74 |z|=fa |u|=f5 |i|=69 |o|=6f |p|=f0|
|a|=e1 |s|=f3 |d|=e4 |f|=66 |g|=e7 |h|=e8 |j|=6a |k|=eb |l|=6c|
|y|=f9 |x|=78 |c|=63 |v|=f6 |b|=e2 |n|=ee |m|=ed |,|=ac |.|=2e |-|=2d|
Using 'cu -l /dev/tty01 -s 9600' doesn't show this behaviour, but with
cu I cannot send a break to the other side, whereas tip can do this.
I am using tip on NetBSD/i386 1.5.2. ~/.tiprc contains only 'escape=^O'.
Nothing changes when I use tip on the console in contrast to an xterm.
Can anyone tell me what stupid mistake I made ?