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io: add a GRUB_GZ prefix to gzio specific defines

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* This is done to avoid a conflict with a PACKED define in the EDK2
This commit is contained in:
Pete Batard 2017-08-07 16:23:12 +01:00 committed by Vincent Batts
parent 5ba09fb415
commit 0f6ca5ecf9
1 changed files with 20 additions and 20 deletions
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40
grub-core/io/gzio.c
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@ -140,24 +140,24 @@ eat_field (grub_file_t file, int len)
#define OLD_GZIP_MAGIC grub_le_to_cpu16 (0x9E1F)
/* Compression methods (see algorithm.doc) */
#define STORED 0
#define COMPRESSED 1
#define PACKED 2
#define LZHED 3
#define GRUB_GZ_STORED 0
#define GRUB_GZ_COMPRESSED 1
#define GRUB_GZ_PACKED 2
#define GRUB_GZ_LZHED 3
/* methods 4 to 7 reserved */
#define DEFLATED 8
#define MAX_METHODS 9
#define GRUB_GZ_DEFLATED 8
#define GRUB_GZ_MAX_METHODS 9
/* gzip flag byte */
#define ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
#define EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
#define ORIG_NAME 0x08 /* bit 3 set: original file name present */
#define COMMENT 0x10 /* bit 4 set: file comment present */
#define ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
#define RESERVED 0xC0 /* bit 6,7: reserved */
#define GRUB_GZ_ASCII_FLAG 0x01 /* bit 0 set: file probably ascii text */
#define GRUB_GZ_CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
#define GRUB_GZ_EXTRA_FIELD 0x04 /* bit 2 set: extra field present */
#define GRUB_GZ_ORIG_NAME 0x08 /* bit 3 set: original file name present */
#define GRUB_GZ_COMMENT 0x10 /* bit 4 set: file comment present */
#define GRUB_GZ_ENCRYPTED 0x20 /* bit 5 set: file is encrypted */
#define GRUB_GZ_RESERVED 0xC0 /* bit 6,7: reserved */
#define UNSUPPORTED_FLAGS (CONTINUATION | ENCRYPTED | RESERVED)
#define GRUB_GZ_UNSUPPORTED_FLAGS (GRUB_GZ_CONTINUATION | GRUB_GZ_ENCRYPTED | GRUB_GZ_RESERVED)
/* inflate block codes */
#define INFLATE_STORED 0
@ -201,14 +201,14 @@ test_gzip_header (grub_file_t file)
* problem occurs from here on, then we have corrupt or otherwise
* bad data, and the error should be reported to the user.
*/
if (hdr.method != DEFLATED
|| (hdr.flags & UNSUPPORTED_FLAGS)
|| ((hdr.flags & EXTRA_FIELD)
if (hdr.method != GRUB_GZ_DEFLATED
|| (hdr.flags & GRUB_GZ_UNSUPPORTED_FLAGS)
|| ((hdr.flags & GRUB_GZ_EXTRA_FIELD)
&& (grub_file_read (gzio->file, &extra_len, 2) != 2
|| eat_field (gzio->file,
grub_le_to_cpu16 (extra_len))))
|| ((hdr.flags & ORIG_NAME) && eat_field (gzio->file, -1))
|| ((hdr.flags & COMMENT) && eat_field (gzio->file, -1)))
|| ((hdr.flags & GRUB_GZ_ORIG_NAME) && eat_field (gzio->file, -1))
|| ((hdr.flags & GRUB_GZ_COMMENT) && eat_field (gzio->file, -1)))
return 0;
gzio->data_offset = grub_file_tell (gzio->file);
@ -1183,7 +1183,7 @@ test_zlib_header (grub_gzio_t gzio)
flg = get_byte (gzio);
/* Check that compression method is DEFLATE. */
if ((cmf & 0xf) != DEFLATED)
if ((cmf & 0xf) != GRUB_GZ_DEFLATED)
{
/* TRANSLATORS: It's about given file having some strange format, not
complete lack of gzip support. */