/usr/lib/fetch-url/tftp is in ubiquity 2.18.7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | protocol_fetch() {
local url file RETVAL i server remote_file
url="$1"
file="$2"
server="$(echo $url | cut -d/ -f 3)"
remote_file="/$(echo $url | cut -d/ -f 4-)"
RETVAL=0
for i in 1 2; do
tftp -g -l "$file" -r "$remote_file" "$server" || RETVAL=$?
[ $RETVAL = 1 ] || return $RETVAL
[ "$TRY_REPEAT" ] || break
done
return $RETVAL
}
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