On Wed, Jul 3, 2024 at 4:38 PM Dmitry V. Levin <l...@strace.io> wrote:
> On Tue, Jul 02, 2024 at 07:30:58PM +0200, Michal Sekletar wrote:
> [...]
> > +int
> > +dwfl_set_sysroot (Dwfl *dwfl, const char *sysroot)
> > +{
> > + if (!sysroot)
> > + {
> > + free (dwfl->sysroot);
> > + dwfl->sysroot = NULL;
> > + return 0;
> > + }
> > +
> > + char *r, *s;
> > + r = realpath (sysroot, NULL);
> > + if (!r)
> > + return -1;
> > +
> > + int rc;
> > + struct stat sb;
> > +
> > + rc = stat (r, &sb);
> > + if (rc < 0 || !S_ISDIR (sb.st_mode))
> > + {
> > + errno = EINVAL;
> > + return -1;
> > + }
> > +
> > + rc = asprintf (&s, "%s/", r);
>
> There is a case when realpath() returns a path ending with '/':
> when the path is "/". I'm mentioning this just in case, not sure whether
> sysroot == "/" makes any sense at all, and whether this needs a special
attention.
>
I think that should be fine, //sysroot should be equivalent to /sysroot,
IOW, multiple slashes shouldn't cause any issues.
Michal
>
> --
> ldv
>
>
