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emulate -L zsh
setopt extendedglob
local REPLY tfd
if [[ $# -ne 2 ]]; then
print "Usage: tcp_dump host port
Connect to the given host and port; send standard input.">&2
return 1
fi
if ! ztcp $1 $2; then
print "Failed to open connection to host $1 port $2" >&2
return 1
fi
tfd=$REPLY
cat >&$tfd
ztcp -c $tfd
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