Re: [Libevent-users] Patch: add constraints on HTTP first line/headers/body size

[q6Yr7e0o nIJDVMjC <u9oqcd4p@xxxxxxxxxxxxxx>]

is (size_t)-1 garanteed to be greater then (size_t)0? Then it's ok
otherwise it's butt ugly imo.





On 10/8/09, Constantine Verutin <cverutin@xxxxxxxxx> wrote:
> Hi,
>
> On Thu, Oct 8, 2009 at 12:54 AM, Victor Goya <bebephoque@xxxxxxxxx> wrote:
> I guess it's because size_t is usually an unsigned int, thus
>
>> ((size_t)-1) == 2^32-1.
>> Some users may want to use the maximum size available that doesn't exceed
>> the size they can handle with size_t and write something like :
>> evhttp_set_max_body_size(http, UINT32_MAX);
>>
>> This may lead to an unexpected behavior. Perhaps you can define something
>> like :
>> EVHTTP_SIZE_MAX ((size_t)-2)
>>
>
> Well, (size_t)-1 is a max value of size_t b/c it's unsigned integer type
> according to C99 ( that's why it's reasonable for -1 to be some kind of
> 'special'  value of size_t). I still don't realize why it can lead to
> unexpected behavior.
>
> --
> WBR,
> Constantine
>
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