Some filesystems nowadays use 64-bit types for timestamps. So, update
grub_dirhook_info struct to use an grub_int64_t type to store mtime.
This also updates the grub_unixtime2datetime() function to receive
a 64-bit timestamp argument and do 64-bit-safe divisions.
All the remaining conversion from 32-bit to 64-bit should be safe, as
32-bit to 64-bit attributions will be implicitly casted. The most
critical part in the 32-bit to 64-bit conversion is in the function
grub_unixtime2datetime() where it needs to deal with the 64-bit type.
So, for that, the grub_divmod64() helper has been used.
These changes enables the GRUB to support dates beyond y2038.
Signed-off-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
* Makefile.util.def (libgrubmods): Add ufs_be.c
* grub-core/Makefile.core.def (ufs1_be): New module.
* grub-core/fs/ufs_be.c: New file.
* grub-core/fs/ufs.c: Declare grub_ufs_to_le* and use them throughout
the file.
* grub-core/fs/ufs.c (INODE): Removed.
(INODE_SIZE): Always use 64-bit byte-swap since size field is always
64-bit.
(INODE_MODE): Simplify.
(grub_ufs_inode): Use uint64_t for size and not int64_t.
(grub_ufs_lookup_symlink): Don't use INODE.
* grub-core/fs/ufs.c (UFS_LOG_BLKSZ): New macro.
(grub_ufs_data): New field log2_blksz.
(grub_ufs_read_file): Use shifts.
(grub_ufs_mount): Check block size and logarithm it.
* grub-core/fs/affs.c (grub_affs_read_file): Use grub_off_t for offset.
* grub-core/fs/afs.c (grub_afs_read_file): Likewise.
* grub-core/fs/fshelp.c (grub_fshelp_find_file): Remove leftover
variable.
* grub-core/fs/hfs.c (grub_hfs_read_file): Use grub_off_t for offset
and connected types.
* grub-core/fs/nilfs2.c (grub_nilfs2_read_file): Use grub_off_t for
offset.
(grub_nilfs2_iterate_dir): Use grub_off_t for fpos.
* grub-core/fs/sfs.c (grub_sfs_read_file): Use grub_off_t for offset.
* grub-core/fs/ufs.c (grub_ufs_read_file): Use grub_off_t for offset
and connected types.
