WOL - Wake On Lan

With this smart C program you can send wol magic packets in the network
Version 0.01.07

Author: Timo Furrer [email protected]
License: GPL (See LICENSE)

What ?

With this smart C program you can send wol magic packets to one or more MAC addresses in the network.

How to use

Usage: ./wol.c [-r remoteaddr] [-f filename1, ...|mac1, ...]

You can either pass some MAC addresses or you can pass with the option f some filenames contains a MAC address on each line to wake up. With the option r you can specify the remote ip address. The default value is 255.255.255.255 for a broadcast call.

Some examples:

$ ./wol 00:0B:CD:39:2D:E9 0E:FD:FA:33:5D:A6
$ ./wol -r 192.168.1.36 00:0B:CD:39:2D:E9 0E:FD:FA:33:5D:A6
$ ./wol -f macaddresses
$ ./wol -r 192.168.1.36 -f macaddresses
$ ./wol -f macaddresses macaddresses2

MAC Address file syntax

The mac address syntax is very simple. It expects one mac address per line. Lines starting with # are comment lines and will be ignored.

Valid Syntax:

# Mac address of host 192.168.1.2
00:0B:CD:39:2D:E9

# Brothers mac address
00:05:FE:AB:3D:99

# Servers mac address
00:32:D5:35:EF:63

How to compile

To compile the wol source you just need the gcc. Compile it with the following command:

$ gcc -Wall -o wol src/wol.c

If you want to be able to execute this script from command line without to be in the right directory you can copy the compiled binary file to you /usr/bin/ directory. For this command you need root-privileges:

# cp wol /usr/bin

Now if this worked fine and your PATH environment variable contains /usr/bin/ you can execute this program from everywhere with:

$ wol 00:0B:CD:39:2D:E9