Re: [PATCH] ld.so(8): make lack of separator escaping explicit

[Mike Frysinger <vapier-aBrp7R+bbdUdnm+yROfE0A@public.gmane.org>]

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On 05 Feb 2018 17:19, walter harms wrote:
> Am 05.02.2018 17:13, schrieb Mike Frysinger:
> > Make it clear that the delimiters in LD_LIBRARY_PATH cannot be escaped
> > so people don't try various methods (like \:) to workaround it.
> > 
> > --- a/man8/ld.so.8
> > +++ b/man8/ld.so.8
> > @@ -271,7 +271,8 @@ This is useful when using a debugger.
> >  .B LD_LIBRARY_PATH
> >  A list of directories in which to search for
> >  ELF libraries at execution time.
> > -The items in the list are separated by either colons or semicolons.
> > +The items in the list are separated by either colons or semicolons,
> > +and there is no support for escaping either separator.
> >  Similar to the
> >  .B PATH
> >  environment variable.
> 
> I am not sure that i understand that. You say that a libname like
> libfoo.1.2:3 is unparseable ?

i think you're confusing LD_LIBRARY_PATH with other variables like
LD_PRELOAD.  my patch here is for the former, and that only loads
search paths (i.e. directories), not files.

however, you're correct in that LD_PRELOAD="libfoo.1.2:3" would not
work if the file was literally named "libfoo.1.2:3".  it would search
for "libfoo.1.2" and "3", and there is no way to change that behavior.

i'll send another patch.
-mike

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