Server commander

[JuliB]

Is it possible to create a plugin, that can execute servercommands? I don't mean minecraft commands, I mean commands for the system, like Linux and Windows. In C++ the function is system().
I'm sorry if I failed to see a plugin that already exists,

Juli
:P

[NiLSPACE]

Yes, that should be very easy to create. In fact, I just did it in under 5 minutes:

function Initialize(a_Plugin)
	a_Plugin:SetName("Shell Execute")
	a_Plugin:SetVersion(0)
	
	LOG("Shell Execute is initialized");
	
	cPluginManager:BindCommand("/shell", "shell.execute", HandleShellCommand, "Executes the given shell command")
	
	return true
end




function HandleShellCommand(a_Split, a_Player)
	local ShellCommand = table.concat(a_Split, " ", 2)
	local res = assert(io.popen(ShellCommand)):read("*all")
	
	a_Player:SendMessage(res)

	return true
end

Just pop that in "root/Plugins/ShellExecute/main.lua" or something and enable it
I believe io.popen had some problems with Linux though.

[JuliB]

I believe io.popen had some problems with Linux though.

Thank you for the fast answer, but like you write, it crashes a little bit in Linux... Can I do anything to make it working?

Juli

[NiLSPACE]

Could you give me the error message?

[JuliB]

Could you give me the error message?

[12:00:40] Deadlock detected, aborting the server
[12:00:40] D: | Cuberite has encountered an error and needs to close
[12:00:40] Details | SIGABRT: Server self-terminated due to an internal fault
[12:00:40] Cuberite Jenkins clang x64 Release (master) build id: #320
[12:00:40] from commit id: a99c82323e310c883876a51f8fac3e075d87540d built at: Fri 18 Dec 17:08:04 CET 2015
./Cuberite(_Z15PrintStackTracev+0x19)[0x5e3329]
./Cuberite(_Z14NonCtrlHandleri+0xe5)[0x5cd0f5]
/lib/x86_64-linux-gnu/libc.so.6(+0x352f0)[0x7f06a771e2f0]
/lib/x86_64-linux-gnu/libc.so.6(gsignal+0x37)[0x7f06a771e267]
/lib/x86_64-linux-gnu/libc.so.6(abort+0x16a)[0x7f06a771feca]
./Cuberite[0x559ce2]
./Cuberite[0x559d75]
./Cuberite(_ZN5cRoot12ForEachWorldER13cItemCallbackI6cWorldE+0x3d)[0x59423d]
./Cuberite(_ZN15cDeadlockDetect7ExecuteEv+0x3c)[0x559bbc]
/usr/lib/x86_64-linux-gnu/libstdc++.so.6(+0xb9030)[0x7f06a7d83030]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x76aa)[0x7f06a80536aa]
/lib/x86_64-linux-gnu/libc.so.6(clone+0x6d)[0x7f06a77efeed]

It happends some seconds after I execute this command as Admin in the game.

[NiLSPACE]

I knew io.popen is sometimes weird on Linux, but I didn't know it would create a deadlock :/ The command you're trying to execute, does it terminate quickly afterwards, or will it always be active? If it's always active perhaps try to put a "&" after it. (<whatever command> &). In windows try putting "start /b" in front (start /b <whatever command>)

[JuliB]

I knew io.popen is sometimes weird on Linux, but I didn't know it would create a deadlock :/ The command you're trying to execute, does it terminate quickly afterwards, or will it always be active? If it's always active perhaps try to put a "&" after it. (<whatever command> &). In windows try putting "start /b" in front (start /b <whatever command>)

Thank you for the answer! After I entered the command, I don't receive any reaction, until the server crashed with that error message.The & char doesn't change anything, but maybe it's possible to find an alternative.
Is it posssible to create a empty file with a specific name? I could create a backround process, that checks the avaibility (correct english word?) of the file and reacts then.

[NiLSPACE]

Hmm, I'm not sure if that would work. Question, do you want the output of the command to be send to the player? If not then you can change "local res = assert(io.popen(ShellCommand)):read("*all")" into "os.execute(ShellCommand)" with "&" or "start /b"

[JuliB]

Hmm, I'm not sure if that would work. Question, do you want the output of the command to be send to the player? If not then you can change "local res = assert(io.popen(ShellCommand)):read("*all")" into "os.execute(ShellCommand)" with "&" or "start /b"

I don't need any output, so I changed the line, but the error doesn't dissapears

[NiLSPACE]

That's strange. Perhaps others know what the problem is, because I have no idea