On Sat, Feb 6, 2016 at 10:15 AM, Karthik Nayak <karthik....@gmail.com> wrote:
> On Sun, Jan 31, 2016 at 11:12 PM, Karthik Nayak <karthik....@gmail.com> wrote:
>> @@ -138,10 +140,9 @@ int parse_ref_filter_atom(const char *atom, const char
>> *ep)
>> * shouldn't be used for checking against the valid_atom
>> * table.
>> */
>> - const char *formatp = strchr(sp, ':');
>> - if (!formatp || ep < formatp)
>> - formatp = ep;
>> - if (len == formatp - sp && !memcmp(valid_atom[i].name, sp,
>> len))
>> + arg = memchr(sp, ':', ep - sp);
>> + if ((!arg || len == arg - sp) &&
>> + !memcmp(valid_atom[i].name, sp, len))
>> break;
>> }
>
> Also having a look at this, this breaks the previous error checking we
> had at parse_ref_filter_atom().
> e.g: git for-each-ref --format="%(refnameboo)" would not throw an error.
>
> I think the code needs to be changed to:
>
> - if ((!arg || len == arg - sp) &&
> + if ((arg || len == ep - sp) &&
> + (!arg || len == arg - sp) &&
For completeness, for people reading the mailing list archive, a
couple alternate fixes were presented elsewhere[1], with a personal
bias toward:
arg = memchr(...);
if (!arg)
arg = ep;
if (len == arg - sp && !memcmp(...))
...
[1]:
http://git.661346.n2.nabble.com/PATCH-ref-filter-c-don-t-stomp-on-memory-tp7647432p7647433.html
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