Raspberry PI get the local IP address
lazarus / 38-Networking and Web Programming

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bartdereu · 2014-01-06 17:23

Hi all,

i've been googling for a while whitout any succes. I'm trying to find
a way to get the local IP address.
Since i can't use winsock, i'm pretty stuck at this. Any ideas?

Thanx.

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mica · 2014-01-06 17:54

http://synapse.ararat.cz/doc/help/synamisc.html

GetLocalIPs

or parsing /proc

http://www.onlamp.com/pub/a/linux/2000/11/16/LinuxAdmin.html

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motaz · 2014-01-06 20:13

GetLocalIPs gives only 127.0.0.1

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jwdietrich · 2014-01-06 21:21

You could try to use the following function (requires the unit
Process):

Code: [Select]function GetIPAddress: string;
var
  theProcess: TProcess;
  AddressString: AnsiString;
begin
  try
    theProcess := TProcess.Create(nil);
    theProcess.CommandLine := 'hostname -I';
    theProcess.Options := [poUsePipes];
    theProcess.Execute;
    if theProcess.Output.NumBytesAvailable > 0 then
    begin
      SetLength(AddressString, theProcess.Output.NumBytesAvailable);
      theProcess.Output.ReadBuffer(AddressString[1],
theProcess.Output.NumBytesAvailable);
    end;
    GetIPAddress := AddressString;
  finally
    theProcess.Free;
  end;
end;

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mica · 2014-01-08 05:48

You can try this too

https://www.mail-archive.com/synalist-
public@lists.sourceforge.net/msg03470.html

https://www.mail-archive.com/synalist-
public@lists.sourceforge.net/msg03470/getlocalips.lpr