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Telnet character conversion

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jhmartin
Tux's lil' helper

Joined: 03 Sep 2003
Posts: 95

Posted: Wed Feb 23, 2005 8:42 pm Post subject: Telnet character conversion

I've got a script that echoes a value into telnet.

Code:

echo $the_hostname | telnet my.machine 6789

I'm experiencing a problem such that if $the_hostname contains the number 7, my.machine gets the data up to the number 7 and then some garbage.

Strace output from telnet during this operation:

Code:

read(0, "gap07\n", 8192) = 6
send(3, "gap0\377\364\377\375\6", 9, 0) = 9

This only happens on a certain group of hosts, and then only when using the script -- manually performing the telnet and entering $my_hostname works. What might cause this?

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