On 10:46 Fri 19 Apr , Hubert Feurstein wrote:
> Signed-off-by: Hubert Feurstein <[email protected]>
> ---
> common/filetype.c | 41 ++++++++++++++++++++++++-----------------
> include/filetype.h | 1 +
> 2 files changed, 25 insertions(+), 17 deletions(-)
>
> diff --git a/common/filetype.c b/common/filetype.c
> index 8652f1d..48fcdff 100644
> --- a/common/filetype.c
> +++ b/common/filetype.c
> @@ -151,13 +151,34 @@ enum filetype is_fat_or_mbr(const unsigned char
> *sector, unsigned long *bootsec)
> return filetype_mbr;
> }
>
> +enum filetype file_detect_partition_table(const void *_buf, size_t bufsize)
> +{
> + const u8 *buf8 = _buf;
> + enum filetype type;
> +
> + if (bufsize < 512)
> + return filetype_unknown;
> +
> + /*
> + * EFI GPT need to be detected before MBR otherwise
> + * we will detect a MBR
> + */
> + if (bufsize >= 520 && is_gpt_valid(buf8))
> + return filetype_gpt;
> +
> + type = is_fat_or_mbr(buf8, NULL);
> + if (type != filetype_unknown)
> + return type;
> +
> + return filetype_unknown;
> +}
> +
> enum filetype file_detect_type(const void *_buf, size_t bufsize)
> {
> const u32 *buf = _buf;
> const u64 *buf64 = _buf;
> const u8 *buf8 = _buf;
> const u16 *buf16 = _buf;
> - enum filetype type;
>
> if (bufsize < 9)
> return filetype_unknown;
> @@ -204,24 +225,10 @@ enum filetype file_detect_type(const void *_buf, size_t
> bufsize)
> if (bufsize < 512)
> return filetype_unknown;
>
> - /*
> - * EFI GPT need to be detected before MBR otherwise
> - * we will detect a MBR
> - */
> - if (bufsize >= 520 && is_gpt_valid(buf8))
> - return filetype_gpt;
> -
> - type = is_fat_or_mbr(buf8, NULL);
> - if (type != filetype_unknown)
> - return type;
> -
> - if (bufsize < 1536)
> - return filetype_unknown;
> -
> - if (buf16[512 + 28] == le16_to_cpu(0xef53))
> + if (bufsize >= 1536 && buf16[512 + 28] == le16_to_cpu(0xef53))
> return filetype_ext;
>
> - return filetype_unknown;
> + return file_detect_partition_table(_buf, bufsize);
no you need to move this UP and keep the if bufsize < 1536
and we always need to return unknown at the end
> }
>
> enum filetype file_name_detect_type(const char *filename)
> diff --git a/include/filetype.h b/include/filetype.h
> index 78ca5d2..ee777ac 100644
> --- a/include/filetype.h
> +++ b/include/filetype.h
> @@ -31,6 +31,7 @@ enum filetype {
>
> const char *file_type_to_string(enum filetype f);
> const char *file_type_to_short_string(enum filetype f);
> +enum filetype file_detect_partition_table(const void *_buf, size_t bufsize);
> enum filetype file_detect_type(const void *_buf, size_t bufsize);
> enum filetype file_name_detect_type(const char *filename);
> enum filetype is_fat_or_mbr(const unsigned char *sector, unsigned long
> *bootsec);
> --
> 1.8.1.3
>
>
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