From: Junio C Hamano <gitster@pobox.com>
Date: Mon, 17 Oct 2016 22:49:13 GMT
Subject: Re: [PATCH] submodule--helper: normalize funny urls
Message-ID: <xmqqbmyisiae.fsf@gitster.mtv.corp.google.com>
In-Reply-To: <20161017221623.7299-1-sbeller@google.com>

Stefan Beller <sbeller@google.com> writes:

> +static void strip_url_ending(char *url, size_t *_len)
> +{
> +	int check_url_stripping = 1;
> +	size_t len = _len ? *_len : strlen(url);
> +
> +	while (check_url_stripping) {
> +		check_url_stripping = 0;
> +		if (is_dir_sep(url[len-2]) && url[len-1] == '.') {

This is "strip /. at the end" it seems.

Does anything in the loop control guarantees 2 <= len at this point?

> +			url[len-2] = '\0';
> +			len -= 2;
> +			check_url_stripping = 1;
> +		}
> +
> +		if (is_dir_sep(url[len-1])) {

This is "strip / at the end" it seems.

Does anything in the loop control guarantees 1 <= len at this point?

> +			url[len-1] = '\0';
> +			len--;
> +			check_url_stripping = 1;
> +		}
> +	}