On Wed, Oct 23, 2013 at 2:55 PM, Nguyễn Thái Ngọc Duy <[email protected]> wrote:
> The old code does not do boundary check so any paths longer than
> PATH_MAX can cause buffer overflow. Replace it with strbuf to handle
> paths of arbitrary length.
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <[email protected]>
> ---
> To get this topic going again. These two patches kill PATH_MAX in
> entry.c and builtin/checkout-index.c
Thanks !
> diff --git a/entry.c b/entry.c
> index acc892f..d955af5 100644
> --- a/entry.c
> +++ b/entry.c
> @@ -237,16 +237,18 @@ static int check_path(const char *path, int len, struct
> stat *st, int skiplen)
> int checkout_entry(struct cache_entry *ce,
> const struct checkout *state, char *topath)
> {
> - static char path[PATH_MAX + 1];
> + static struct strbuf path_buf = STRBUF_INIT;
> + char *path;
> struct stat st;
> - int len = state->base_dir_len;
> + int len;
>
> if (topath)
> return write_entry(ce, topath, state, 1);
>
> - memcpy(path, state->base_dir, len);
> - strcpy(path + len, ce->name);
> - len += ce_namelen(ce);
> + strbuf_reset(&path_buf);
I think this is not required
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