Re: [PATCH v6 3/6] verify-tag: change variable name for readability

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On Sun, Apr 17, 2016 at 06:26:58PM -0400, santiago@xxxxxxx wrote:

> diff --git a/builtin/verify-tag.c b/builtin/verify-tag.c
> index 77f070a..010353c 100644
> --- a/builtin/verify-tag.c
> +++ b/builtin/verify-tag.c
> @@ -21,20 +21,21 @@ static const char * const verify_tag_usage[] = {
>  static int run_gpg_verify(const char *buf, unsigned long size, unsigned flags)
>  {
>  	struct signature_check sigc;
> -	int len;
> +	int payload_size;
>  	int ret;
>  
>  	memset(&sigc, 0, sizeof(sigc));
>  
> -	len = parse_signature(buf, size);
> +	payload_size = parse_signature(buf, size);

While we're here, can we make payload_size a "size_t"? That is the
return type of parse_signature.

> -	if (size == len) {
> +	if (size == payload_size) {

That would make this a comparison between "unsigned long" and "size_t",
but I doubt it would be the first such place in git. And it works out in
practice, because "unsigned long" is generally at least as large as
"size_t", and if our buffer is larger than "size_t" can store, we'd have
failed long before, when trying to allocate the buffer.

We could make "size" also a "size_t", but I suspect then we'd just be
bumping the mismatch out to its caller.

-Peff
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