On Thu, 19 May 2016 18:57:50 +0200
Hiltjo Posthuma <[email protected]> wrote:
> Hi peoples,
>
> This diff makes sure to NUL-terminate argv when parsing options in libfuse.
> The upstream/other libfuse does it this way. This fixes an issue with the
> sysutils/sshfs port, it uses execvp(3) on the fuse_args argv and this gave
> an error "bad address".
>
>
> Index: fuse_opt.c
> ===================================================================
> RCS file: /cvs/src/lib/libfuse/fuse_opt.c,v
> retrieving revision 1.15
> diff -u -p -r1.15 fuse_opt.c
> --- fuse_opt.c 19 Oct 2015 17:24:07 -0000 1.15
> +++ fuse_opt.c 19 May 2016 16:50:39 -0000
> @@ -353,7 +353,7 @@ fuse_opt_insert_arg(struct fuse_args *ar
> if (p < 0 || p > args->argc)
> return (-1);
>
> - av = reallocarray(args->argv, args->argc + 1, sizeof(*av));
> + av = reallocarray(args->argv, args->argc + 2, sizeof(*av));
> if (av == NULL)
> return (-1);
>
> @@ -365,6 +365,7 @@ fuse_opt_insert_arg(struct fuse_args *ar
>
> args->argc++;
> args->argv = av;
> + args->argv[args->argc] = NULL;
> for (i = p; i < args->argc; i++) {
> next_arg = args->argv[i];
> args->argv[i] = this_arg;
>
>
> [0] upstream libfuse fuse_opt_add_arg:
> https://github.com/libfuse/libfuse/blob/master/lib/fuse_opt.c#L62
>
This looks correct, but don't forget about free_argv() and alloc_argv().
Ray
