Re: [PATCH] archive-tar: fix a sparse 'constant too large' warning

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On 04/05/17 10:26, Johannes Schindelin wrote:
> Hi Ramsay,
> 
> On Thu, 4 May 2017, Ramsay Jones wrote:
> 
>> diff --git a/archive-tar.c b/archive-tar.c
>> index 319a5b1c7..6dddc0cff 100644
>> --- a/archive-tar.c
>> +++ b/archive-tar.c
>> @@ -33,7 +33,7 @@ static int write_tar_filter_archive(const struct archiver *ar,
>>  #if TIME_MAX == 0xFFFFFFFF
>>  #define USTAR_MAX_MTIME TIME_MAX
>>  #else
>> -#define USTAR_MAX_MTIME 077777777777UL
>> +#define USTAR_MAX_MTIME 077777777777ULL
>>  #endif
>>  
> 
> Funny. This problem was pointed out by Hannes Sixt (IIRC) and I fixed this
> very thing in v6.
> 
> Except I did not. I changed the wrong constant! Instead of
> USTAR_MAX_MTIME, I adjusted USTAR_MAX_SIZE. D'oh.

Ah, I did wonder about that.

> I just saw that my patch series already hit `next`, so I fear you are
> right that we need a follow-up patch. Maybe we want this diff, though?
> 
> -- snipsnap --
> diff --git a/archive-tar.c b/archive-tar.c
> index 319a5b1c7cd..073e60ebd3c 100644
> --- a/archive-tar.c
> +++ b/archive-tar.c
> @@ -28,12 +28,12 @@ static int write_tar_filter_archive(const struct archiver *ar,
>  #if ULONG_MAX == 0xFFFFFFFF
>  #define USTAR_MAX_SIZE ULONG_MAX
>  #else
> -#define USTAR_MAX_SIZE 077777777777ULL
> +#define USTAR_MAX_SIZE 077777777777UL

Sure, I can add this. (Although, I don't think it actually
matters).

Hmm, unless somebody objects in the meantime, I will re-roll
the patch (tomorrow, it's late!).

>  #endif
>  #if TIME_MAX == 0xFFFFFFFF
>  #define USTAR_MAX_MTIME TIME_MAX
>  #else
> -#define USTAR_MAX_MTIME 077777777777UL
> +#define USTAR_MAX_MTIME 077777777777ULL
>  #endif
>  
>  /* writes out the whole block, but only if it is full */
> 

ATB,
Ramsay Jones





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