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2009-04-05 Vladimir Serbinenko <phcoder@gmail.com>

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Support for mtime and further expandability of dir command

	* include/grub/lib/datetime.h: moved to ...
	* include/grub/datetime.h: ... moved here and added 
	declaration of grub_unixtime2datetime. All users updated
	* include/grub/fs.h: new syntax for dir and mtime functionin 
	struct grub_fs 
	* include/grub/fshelp.h: new declarations of GRUB_FSHELP_TYPE_MASK
	and GRUB_FSHELP_FLAGS_MASK
	* commands/ls.c (grub_ls_list_files): Write mtime in long format
	* fs/ext2.c (grub_ext2_dir): use new dir syntax and supply mtime
	(grub_ext2_mtime): new function
	* fs/hfsplus.c (grub_hfsplus_dir): use new dir syntax and supply mtime
	(grub_hfsplus_mtime): new function
	* fs/ufs.c (GRUB_UFS_ATTR_TYPE): new definition
	(GRUB_UFS_ATTR_FILE): likewise
	(GRUB_UFS_ATTR_LNK): likewise
	(struct grub_ufs_sblock): new fields mtime
	(grub_ufs_read_inode): new parameter to read inode to a separate buffer
	all users updated
	(grub_ufs_dir): mtime support
	(grub_ufs_mtime): new function
	* fs/affs.c (grub_affs_dir): use new dir syntax
	* fs/afs.c (grub_afs_dir): likewise
	* fs/cpio.c (grub_cpio_dir): likewise
	* fs/fat.c (grub_fat_find_dir): likewise
	* fs/hfs.c (grub_hfs_dir): likewise
	* fs/iso9660.c (grub_iso9660_dir): likewise
	* fs/jfs.c (grub_jfs_dir): likewise
	* fs/minix.c (grub_minix_dir): likewise
	* fs/ntfs.c (grub_ntfs_dir): likewise
	* fs/reiserfs.c (grub_reiserfs_dir): likewise
	* fs/sfs.c (grub_sfs_dir): likewise
	* fs/xfs.c (grub_xfs_dir): likewise
	* util/hostfs.c (grub_hostfs_dir): likewise
	* lib/datetime.c: moved to ...
	* normal/datetime.c: ... moved here
	(grub_unixtime2datetime): new function
	* kern/rescue.c (grub_rescue_print_files): use new dir syntax
	* normal/completition.c (iterate_dir): use new dir syntax
	* normal/misc.c (grub_normal_print_device_info): tell the 
	last modification time of a volume
	* kern/fs.c (grub_fs_probe): updated dummy function to use new syntax 
	* conf/common.rmk: added lib/datetime.c to ls.mod
	* conf/i386-coreboot.rmk (grub_emu_SOURCES): add normal/datetime.c  
	(normal_mod_SOURCES): likewise
	(datetime_mod_SOURCES): Removed lib/datetime.c
	* conf/i386-efi.rmk: likewise
	* conf/i386-ieee1275.rmk: likewise	
	* conf/i386-pc.rmk: likewise
	* conf/powerpc-ieee1275.rmk: likewise
	* conf/sparc64-ieee1275.rmk: likewise	
	* conf/x86_64-efi.rmk: likewise
This commit is contained in:
phcoder 2009-04-05 20:19:05 +00:00
parent 8a7e1a145f
commit 05aaebfb7b
48 changed files with 834 additions and 443 deletions
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100
normal/datetime.c Normal file
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/* datetime.c - Module for common datetime function. */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2008 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#include <grub/datetime.h>
static char *grub_weekday_names[] =
{
"Sunday",
"Monday",
"Tuesday",
"Wednesday",
"Thursday",
"Friday",
"Saturday",
};
int
grub_get_weekday (struct grub_datetime *datetime)
{
int a, y, m;
a = (14 - datetime->month) / 12;
y = datetime->year - a;
m = datetime->month + 12 * a - 2;
return (datetime->day + y + y / 4 - y / 100 + y / 400 + (31 * m / 12)) % 7;
}
char *
grub_get_weekday_name (struct grub_datetime *datetime)
{
return grub_weekday_names[grub_get_weekday (datetime)];
}
#define SECPERMIN 60
#define SECPERHOUR (60*SECPERMIN)
#define SECPERDAY (24*SECPERHOUR)
#define SECPERYEAR (365*SECPERDAY)
#define SECPER4YEARS (4*SECPERYEAR+SECPERDAY)
void
grub_unixtime2datetime (grub_int32_t nix, struct grub_datetime *datetime)
{
int i;
int div;
grub_uint8_t months[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
/* In the period of validity of unixtime all years divisible by 4
are bissextile*/
/* Convenience: let's have 3 consecutive non-bissextile years
at the begining of the epoch. So count from 1973 instead of 1970 */
nix -= 3*SECPERYEAR + SECPERDAY;
/* Transform C divisions and modulos to mathematical ones */
div = nix / SECPER4YEARS;
if (nix < 0)
div--;
datetime->year = 1973 + 4 * div;
nix -= div * SECPER4YEARS;
/* On 31st december of bissextile years 365 days from the begining
of the year elapsed but year isn't finished yet*/
if (nix / SECPERYEAR == 4)
{
datetime->year += 3;
nix -= 3*SECPERYEAR;
}
else
{
datetime->year += nix / SECPERYEAR;
nix %= SECPERYEAR;
}
for (i = 0; i < 12
&& nix >= ((grub_int32_t) (i==1 && datetime->year % 4 == 0
? 29 : months[i]))*SECPERDAY; i++)
nix -= ((grub_int32_t) (i==1 && datetime->year % 4 == 0
? 29 : months[i]))*SECPERDAY;
datetime->month = i + 1;
datetime->day = 1 + (nix / SECPERDAY);
nix %= SECPERDAY;
datetime->hour = (nix / SECPERHOUR);
nix %= SECPERHOUR;
datetime->minute = nix / SECPERMIN;
datetime->second = nix % SECPERMIN;
}