Andrew Wong <andrew.k...@gmail.com> writes:
> The previous code was assuming length ends at either `)` or `,`, and was
> not handling the case where strcspn returns length due to end of string.
> So specifying ":(top" as pathspec will cause the loop to go pass the end
> of string.
Thanks.
The parser that goes past the end of the string may be a bug worth
fixing, but is this patch sufficient to diagnose such an input as an
error?
> Signed-off-by: Andrew Wong <andrew.k...@gmail.com>
> ---
> setup.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/setup.c b/setup.c
> index 1dee47e..f4c4e73 100644
> --- a/setup.c
> +++ b/setup.c
> @@ -207,9 +207,11 @@ static const char *prefix_pathspec(const char *prefix,
> int prefixlen, const char
> *copyfrom && *copyfrom != ')';
> copyfrom = nextat) {
> size_t len = strcspn(copyfrom, ",)");
> - if (copyfrom[len] == ')')
> + if (copyfrom[len] == '\0')
> nextat = copyfrom + len;
> - else
> + else if (copyfrom[len] == ')')
> + nextat = copyfrom + len;
> + else if (copyfrom[len] == ',')
> nextat = copyfrom + len + 1;
> if (!len)
> continue;
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