Re: [Xen-devel] [PATCH][TOOLS] libxl: open code basename()

[Christoph Egger <Christoph.Egger@xxxxxxx>]

On Wednesday 15 December 2010 13:23:54 Juergen Gross wrote:
> On 12/15/10 13:12, Christoph Egger wrote:
> > Hi!
> >
> > Attached patch open codes basename() with strrchr().
> > Fixes build on platforms like NetBSD where POSIX basename is available.
> >
> > Signed-off-by: Christoph Egger<Christoph.Egger@xxxxxxx>
> >
>  > diff -r dcb46110d460 -r e8ce7e3e4b8c tools/libxl/xl_cmdimpl.c
>  > --- a/tools/libxl/xl_cmdimpl.c
>  > +++ b/tools/libxl/xl_cmdimpl.c
>  > @@ -5455,7 +5455,7 @@ int main_cpupoolcreate(int argc, char **
>  >      if (!xlu_cfg_get_string (config, "name", &buf))
>  >          name = strdup(buf);
>  >      else
>  > -        name = basename(filename);
>  > +        name = strrchr(filename, '/') + 1;
>  >      if (!libxl_name_to_cpupoolid(&ctx, name, &poolid)) {
>  >          fprintf(stderr, "Pool name \"%s\" already exists\n", name);
>  >          return -ERROR_FAIL;
>
> This is not correct.
> strrchr returns NULL here if filename contains no '/'. This leads to name
> being 1.

Thanks for pointing this out. I haven't considered that case.

Christoph


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