Re: gnome-devel-list Digest, Vol 4, Issue 1

[danny van elsen <danny van elsen skynet be>]

hello,

thanks for the answer, the code mentioned doesn't work for me (in c++), 
but at least I found how to do this...

string
util::Utilities::get_executable_path(char *executable_name)
{
   string                  s, r;           // string, result

  ///////////////////////////////////////////////////////
  ///copied from http://autopackage.org/docs/binreloc
  ///////////////////////////////////////////////////////

   if (executable_name == 0)
   { return ""; }                                                    

   ifstream map_file("/proc/self/maps");

   if (!map_file)
   { return ""; }                                                    

   while (getline(map_file, s))
   {
    if (   (s.find(" r-xp ") == string::npos)
        || (s.find('/') == string::npos)
        || (s.find(executable_name) == string::npos))
    { continue; }
    // first compliant line will be supposed to contain executable path
   
    // drop everything before first '/'
    r = s.substr(s.find('/'), s.size()); 

    // Get rid of the newline
    if (r.find('\n') != string::npos)
     { r = r.substr(0, r.size() - 1); }
    
    // Get rid of "(deleted)"
    if (r.find(" (deleted)") != string::npos)
    { r = r.substr(0, r.find(" (deleted)")); }

    // Get rid of executable name
    r = r.substr(0, r.rfind('/'));

    return r;
   }

   return "";
}



greetings, Danny.

gnome-devel-list-request gnome org wrote:

> danny van elsen wrote:
>  
>
> > hello all,
> >
> > I'm working on a gnome program in c++, for which I store configuration 
> > data in a separate file.
> >
> >    
> Actually, that *is* the "correct" way. Or should I say: the defacto 
> standard way.
>
> A problem with hardcoding the path in the executable is that it makes 
> your app non-relocatable. Windows app usually find their data files 
> relative to the executable's folder. But you can do the same thing on 
> Linux too. See http://autopackage.org/docs/binreloc/
>
>
> ------------------------------
>