Re: [PATCH 4/5] index-pack: report correct bad object offsets even if they are large
- From
Junio C Hamano <gitster@pobox.com>
- Date
- Jul 12, 2016, 17:24 UTC
- Message-ID
- <xmqqfure6a7b.fsf@gitster.mtv.corp.google.com>
- In-Reply-To
- <20160705170558.10906-5-pclouds@gmail.com>
Nguyễn Thái Ngọc Duy <pclouds@gmail.com> writes:
Show 34 quoted lines
> Use the right type for offsets in this case, off_t, which makes a
> difference on 32-bit systems with large file support, and change
> formatting code accordingly.
>
> Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
> ---
> builtin/index-pack.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/builtin/index-pack.c b/builtin/index-pack.c
> index cafaab7..73f7cd2 100644
> --- a/builtin/index-pack.c
> +++ b/builtin/index-pack.c
> @@ -338,10 +338,10 @@ static void parse_pack_header(void)
> use(sizeof(struct pack_header));
> }
>
> -static NORETURN void bad_object(unsigned long offset, const char *format,
> +static NORETURN void bad_object(off_t offset, const char *format,
> ...) __attribute__((format (printf, 2, 3)));
>
> -static NORETURN void bad_object(unsigned long offset, const char *format, ...)
> +static NORETURN void bad_object(off_t offset, const char *format, ...)
> {
> va_list params;
> char buf[1024];
> @@ -349,7 +349,8 @@ static NORETURN void bad_object(unsigned long offset, const char *format, ...)
> va_start(params, format);
> vsnprintf(buf, sizeof(buf), format, params);
> va_end(params);
> - die(_("pack has bad object at offset %lu: %s"), offset, buf);
> + die(_("pack has bad object at offset %"PRIiMAX": %s"),
> + (intmax_t)offset, buf);
> }We seem to have a fallback definition only for PRIuMAX.
off_t is supposed to be a signed integer type [*1*], but we know this is a positive offset when we issue this warning, so PRIuMAX would probably be fine.
[Reference]
*1* http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/sys_types.h.html