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Adds support for specifying a host.

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If only <port> and <hex> are given, it falls back to previous
behavior: using localhost as <host>.
This commit is contained in:
Daniel Bastos 2016-09-21 09:16:13 -03:00
parent 411edf2fec
commit ad2f5a00a4
1 changed files with 14 additions and 6 deletions
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20
tools/hex.sh
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@ -10,26 +10,34 @@
if [ $# -lt 2 ]
then
echo "USAGE: $0 <port> <hex>"
echo "USAGE: $0 <host> <port> <hex>"
echo "If only <port> and <hex> are present, <host> defaults to localhost."
exit 1
fi
host="$1"; port="$2"; hex="$3";
if [ $# -eq 2 ]
then
host="localhost"; port="$1"; hex="$2";
fi
send_hex_udp () {
echo $2 | xxd -r -p | nc -u -w 0 localhost $1
echo "$hex" | xxd -r -p | nc -u -w 0 "$host" "$port"
}
send_hex_tcp () {
echo $2 | xxd -r -p | nc localhost $1
echo "$hex" | xxd -r -p | nc "$host" "$port"
}
send_text_udp () {
echo -n -e $2 | nc -u -w 0 localhost $1
echo -n -e "$hex" | nc -u -w 0 "$host" "$port"
}
send_text_tcp () {
echo -n -e $2 | nc localhost $1
echo -n -e "$hex" | nc "$host" "$port"
}
send_hex_tcp $1 $2
send_hex_tcp "$host" "$port" "$hex"
exit $?