vbatts/grub
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

* include/grub/file.h (GRUB_FILE_SIZE_UNKNOWN): New definition.

Browse source 
* grub-core/disk/loopback.c (grub_loopback_open): Handle unknown file
	size.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-09-05 17:01:16 +02:00
parent 3579415d20
commit 82a8506214
3 changed files with 14 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

6
ChangeLog
View file

@ -1,3 +1,9 @@
2010-09-05 Vladimir Serbinenko <phcoder@gmail.com>
* include/grub/file.h (GRUB_FILE_SIZE_UNKNOWN): New definition.
* grub-core/disk/loopback.c (grub_loopback_open): Handle unknown file
size.
2010-09-05 Vladimir Serbinenko <phcoder@gmail.com>
* include/grub/err.h (grub_err_t): Replace GRUB_ERR_BAD_GZIP_DATA with

7
grub-core/disk/loopback.c
View file

@ -167,8 +167,11 @@ grub_loopback_open (const char *name, grub_disk_t disk)
return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't open device");
/* Use the filesize for the disk size, round up to a complete sector. */
disk->total_sectors = ((dev->file->size + GRUB_DISK_SECTOR_SIZE - 1)
/ GRUB_DISK_SECTOR_SIZE);
if (dev->file->size != GRUB_FILE_SIZE_UNKNOWN)
disk->total_sectors = ((dev->file->size + GRUB_DISK_SECTOR_SIZE - 1)
/ GRUB_DISK_SECTOR_SIZE);
else
disk->total_sectors = GRUB_DISK_SIZE_UNKNOWN;
disk->id = (unsigned long) dev;
disk->has_partitions = dev->has_partitions;

3
include/grub/file.h
View file

@ -104,6 +104,9 @@ grub_ssize_t EXPORT_FUNC(grub_file_read) (grub_file_t file, void *buf,
grub_off_t EXPORT_FUNC(grub_file_seek) (grub_file_t file, grub_off_t offset);
grub_err_t EXPORT_FUNC(grub_file_close) (grub_file_t file);
/* Return value of grub_file_size() in case file size is unknown. */
#define GRUB_FILE_SIZE_UNKNOWN 0xffffffffffffffffULL
static inline grub_off_t
grub_file_size (const grub_file_t file)
{