[Mono-osx] OSX vs Linux

[Gavin Landon]

Thanks for the help..  This is what I came out with that works out side
of the WaitForExit, which doesn't work on OSX or Linux, but I'll
continue to work on that..   

-----------------------
using System.Runtime.InteropServices;	//mono referenced
using Mono.Unix;

static public void RunIt(string sFile, string sParm, bool bWaitForExit)
{
	//works with URL's, Executables, and File Associations for all
three platforms.

	bool bUseShellExecute = true;
	try
	{
		string os = OSInfo.DetectOS();
		
		if(os=="OSX")
		{
			sParm = "-t " + sFile;
			sFile = "open";
			bUseShellExecute = false;
		}
		
		if(os=="Linux")
		{
			sParm = sFile;
			sFile = "xdg-open";
			bUseShellExecute = false;
		}

		Process proc = new Process();
		proc.StartInfo.FileName = sFile;
		proc.StartInfo.Arguments = sParm;
		proc.StartInfo.UseShellExecute = bUseShellExecute;
		proc.StartInfo.RedirectStandardOutput = false;
		proc.Start();
		
		if(bWaitForExit)
			proc.WaitForExit();
		
	} catch (Exception ec) {
		Common.LogError("Error, \"" + ec.Message.ToString() +
"\" while running " + sFile + ".\n\n"+ec.ToString());
	}
}

[DllImport ("libc")]
static extern int uname (IntPtr buf);

static public string DetectOS ()
{
	string style;
	if (!IsUnix) {
		return "Windows";
	}

	IntPtr buf = UnixMarshal.AllocHeap(8192);
	if (uname (buf) != 0){
		return "Warning: Unable to detect OS";
	}
	string os = Marshal.PtrToStringAnsi (buf);
	if (os == "Darwin")
		style = "OSX";
	else
		style = os;

	UnixMarshal.FreeHeap(buf);
	
	return style;
}

static bool IsUnix {
	get {
		int p = (int) Environment.OSVersion.Platform;
		return ((p == 4) || (p == 128));
	}
}