6 ms·

No big deal, but instead of running "wakeonlan" as a subprocess: import subprocess [...] result = subprocess.run(["wakeonlan", "MY:MA:CA:DD:RE:SS"]

No big deal, but instead of running "wakeonlan" as a subprocess: import subprocess [...] result = subprocess.run(["wakeonlan", "MY:MA:CA:DD:RE:SS"], capture_output=True) The magic packet could be built and broadcast in pure python, without introducing a dependency on an external binary. For example, one could take inspiration from the code at https://github.com/remcohaszing/pywakeonlan/blob/main/wakeonlan/__init__.py https://github.com/remcohaszing/pywakeonlan/blob/main/wakeon...

tekknolagi 2y ago
I am very lazy :)
- tekknolagi 2y ago
  (Though, to be clear, I do like the idea of doing it purely in Python!)
iam-TJ 2y ago
I wrote a pure bash shell version for use on my IPv6-only networks. I initially wanted to make pure POSIX sh but the ease of being able to use ${param,,} and more importantly /dev/udp/$IP/$PORT makes bash more suitable for the use-case. #!/usr/bin/env bash config_sys="${config_sys:-/etc/wol}" config_user="${config_user:=$HOME/.config/wol}" PORT="${PORT:-9999}" cat <<EOF WoL Wake-On-LAN Magic Packet transmitter Copyright 2023 Tj <hacker@iam.tj> Licensed on the terms of the GNU General Public Licence version 3. EOF ls() { shopt -s nullglob for f in $@; do printf "%s\n" "${f##*/}" done } if [ -z "$1" ]; then cat <<-EOF Please specify the hostname. Currently defined: System ($config_sys/): $(ls "$config_sys/*" 2>/dev/null) User ($config_user/): $(ls "$config_user/*" 2>/dev/null) Config files should be named for the target host Content is shell variable definitions Required: IP= and MAC= Optional: PORT= (default is ${PORT}) E.g: MAC="60:45:cb:9f:42:fb" IP="fddc:7e00:e001:ee80::2" EOF exit 1 fi for conf in "$config_sys" "$config_user"; do if [[ -r "$conf/$1" ]]; then . "$conf/$1" # don't break; allow user override fi done if [[ -z "$IP" ]] || [[ -z "$MAC" ]]; then >&2 printf "Error: required configuration missing IP='%s' MAC='%s'\n" "$IP" "$MAC" exit 2 fi target="/dev/udp/$IP/$PORT" hex2char() # $1 = 2 hex digits { case "${#1},${1,,}" in (2,*[!0-9a-f]*) return 2 ;; (2,*) printf '%b' "\x$1" ;; (*) return 1 ;; esac } make_payload() # $1 = Ethernet MAC address with ":" separators { IFS=":" read -r -a mac < <(echo "$1") for h in "${mac[@]}"; do magic="$magic$(hex2char "$h")" done payload="" ff="$(hex2char "ff")" for ((i=0; i < 6; i++)); do payload="${payload}${ff}" done for ((i=0; i < 16; i++)); do payload="${payload}${magic}" done } printf "Sending magic packet to %s (%s port %s [MAC %s])\n" "$1" "$IP" "$PORT" "$MAC" make_payload "$MAC" printf "%s" "$payload" > "$target" || printf "error: failed to send (error %s)\n" "$?"

tekknolagi 2y ago

I am very lazy :)

tekknolagi 2y ago
(Though, to be clear, I do like the idea of doing it purely in Python!)

iam-TJ 2y ago

I wrote a pure bash shell version for use on my IPv6-only networks. I initially wanted to make pure POSIX sh but the ease of being able to use ${param,,} and more importantly /dev/udp/$IP/$PORT makes bash more suitable for the use-case. #!/usr/bin/env bash config_sys="${config_sys:-/etc/wol}" config_user="${config_user:=$HOME/.config/wol}" PORT="${PORT:-9999}" cat <<EOF WoL Wake-On-LAN Magic Packet transmitter Copyright 2023 Tj <hacker@iam.tj> Licensed on the terms of the GNU General Public Licence version 3. EOF ls() { shopt -s nullglob for f in $@; do printf "%s\n" "${f##*/}" done } if [ -z "$1" ]; then cat <<-EOF Please specify the hostname. Currently defined: System ($config_sys/): $(ls "$config_sys/*" 2>/dev/null) User ($config_user/): $(ls "$config_user/*" 2>/dev/null) Config files should be named for the target host Content is shell variable definitions Required: IP= and MAC= Optional: PORT= (default is ${PORT}) E.g: MAC="60:45:cb:9f:42:fb" IP="fddc:7e00:e001:ee80::2" EOF exit 1 fi for conf in "$config_sys" "$config_user"; do if [[ -r "$conf/$1" ]]; then . "$conf/$1" # don't break; allow user override fi done if [[ -z "$IP" ]] || [[ -z "$MAC" ]]; then >&2 printf "Error: required configuration missing IP='%s' MAC='%s'\n" "$IP" "$MAC" exit 2 fi target="/dev/udp/$IP/$PORT" hex2char() # $1 = 2 hex digits { case "${#1},${1,,}" in (2,*[!0-9a-f]*) return 2 ;; (2,*) printf '%b' "\x$1" ;; (*) return 1 ;; esac } make_payload() # $1 = Ethernet MAC address with ":" separators { IFS=":" read -r -a mac < <(echo "$1") for h in "${mac[@]}"; do magic="$magic$(hex2char "$h")" done payload="" ff="$(hex2char "ff")" for ((i=0; i < 6; i++)); do payload="${payload}${ff}" done for ((i=0; i < 16; i++)); do payload="${payload}${magic}" done } printf "Sending magic packet to %s (%s port %s [MAC %s])\n" "$1" "$IP" "$PORT" "$MAC" make_payload "$MAC" printf "%s" "$payload" > "$target" || printf "error: failed to send (error %s)\n" "$?"