/* ls.c - command to list files and devices */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2005,2007,2008,2009 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/types.h>
#include <grub/misc.h>
#include <grub/mm.h>
#include <grub/err.h>
#include <grub/dl.h>
#include <grub/disk.h>
#include <grub/device.h>
#include <grub/term.h>
#include <grub/partition.h>
#include <grub/file.h>
#include <grub/normal.h>
#include <grub/extcmd.h>
#include <grub/datetime.h>
#include <grub/i18n.h>
#include <grub/net.h>
GRUB_MOD_LICENSE ("GPLv3+");
static const struct grub_arg_option options[] =
{
{"long", 'l', 0, N_("Show a long list with more detailed information."), 0, 0},
{"human-readable", 'h', 0, N_("Print sizes in a human readable format."), 0, 0},
{"all", 'a', 0, N_("List all files."), 0, 0},
{0, 0, 0, 0, 0, 0}
};
static const char grub_human_sizes[] = {' ', 'K', 'M', 'G', 'T'};
grub_err_t
grub_ls_list_devices (int longlist);
grub_err_t
grub_ls_list_devices (int longlist)
{
auto int grub_ls_print_devices (const char *name);
int grub_ls_print_devices (const char *name)
{
if (longlist)
grub_normal_print_device_info (name);
else
grub_printf ("(%s) ", name);
return 0;
}
grub_device_iterate (grub_ls_print_devices);
grub_xputs ("\n");
#ifndef GRUB_UTIL
{
grub_net_app_level_t proto;
int first = 1;
FOR_NET_APP_LEVEL (proto)
{
if (first)
grub_puts_ (N_ ("Network protocols:"));
first = 0;
grub_printf ("%s ", proto->name);
}
grub_xputs ("\n");
}
#endif
grub_refresh ();
return 0;
}
grub_err_t
grub_ls_list_files (char *dirname, int longlist, int all, int human);
grub_err_t
grub_ls_list_files (char *dirname, int longlist, int all, int human)
{
char *device_name;
grub_fs_t fs;
const char *path;
grub_device_t dev;
auto int print_files (const char *filename,
const struct grub_dirhook_info *info);
auto int print_files_long (const char *filename,
const struct grub_dirhook_info *info);
int print_files (const char *filename, const struct grub_dirhook_info *info)
{
if (all || filename[0] != '.')
grub_printf ("%s%s ", filename, info->dir ? "/" : "");
return 0;
}
int print_files_long (const char *filename,
const struct grub_dirhook_info *info)
{
if ((! all) && (filename[0] == '.'))
return 0;
if (! info->dir)
{
grub_file_t file;
char *pathname;
if (dirname[grub_strlen (dirname) - 1] == '/')
pathname = grub_xasprintf ("%s%s", dirname, filename);
else
pathname = grub_xasprintf ("%s/%s", dirname, filename);
if (!pathname)
return 1;
/* XXX: For ext2fs symlinks are detected as files while they
should be reported as directories. */
grub_file_filter_disable_compression ();
file = grub_file_open (pathname);
if (! file)
{
grub_errno = 0;
grub_free (pathname);
return 0;
}
if (! human)
grub_printf ("%-12llu", (unsigned long long) file->size);
else
{
grub_uint64_t fsize = file->size * 100ULL;
int fsz = file->size;
int units = 0;
char buf[20];
while (fsz / 1024)
{
fsize = (fsize + 512) / 1024;
fsz /= 1024;
units++;
}
if (units)
{
grub_uint64_t whole, fraction;
whole = grub_divmod64 (fsize, 100, &fraction);
grub_snprintf (buf, sizeof (buf),
"%" PRIuGRUB_UINT64_T
".%02" PRIuGRUB_UINT64_T "%c", whole, fraction,
grub_human_sizes[units]);
grub_printf ("%-12s", buf);
}
else
grub_printf ("%-12llu", (unsigned long long) file->size);
}
grub_file_close (file);
grub_free (pathname);
}
else
grub_printf ("%-12s", "DIR");
if (info->mtimeset)
{
struct grub_datetime datetime;
grub_unixtime2datetime (info->mtime, &datetime);
if (human)
grub_printf (" %d-%02d-%02d %02d:%02d:%02d %-11s ",
datetime.year, datetime.month, datetime.day,
datetime.hour, datetime.minute,
datetime.second,
grub_get_weekday_name (&datetime));
else
grub_printf (" %04d%02d%02d%02d%02d%02d ",
datetime.year, datetime.month,
datetime.day, datetime.hour,
datetime.minute, datetime.second);
}
grub_printf ("%s%s\n", filename, info->dir ? "/" : "");
return 0;
}
device_name = grub_file_get_device_name (dirname);
dev = grub_device_open (device_name);
if (! dev)
goto fail;
fs = grub_fs_probe (dev);
path = grub_strchr (dirname, ')');
if (! path)
path = dirname;
else
path++;
if (! path && ! device_name)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid argument");
goto fail;
}
if (! *path)
{
if (grub_errno == GRUB_ERR_UNKNOWN_FS)
grub_errno = GRUB_ERR_NONE;
grub_normal_print_device_info (device_name);
}
else if (fs)
{
if (longlist)
(fs->dir) (dev, path, print_files_long);
else
(fs->dir) (dev, path, print_files);
if (grub_errno == GRUB_ERR_BAD_FILE_TYPE
&& path[grub_strlen (path) - 1] != '/')
{
/* PATH might be a regular file. */
char *p;
grub_file_t file;
struct grub_dirhook_info info;
grub_errno = 0;
grub_file_filter_disable_compression ();
file = grub_file_open (dirname);
if (! file)
goto fail;
grub_file_close (file);
p = grub_strrchr (dirname, '/') + 1;
dirname = grub_strndup (dirname, p - dirname);
if (! dirname)
goto fail;
all = 1;
grub_memset (&info, 0, sizeof (info));
if (longlist)
print_files_long (p, &info);
else
print_files (p, &info);
grub_free (dirname);
}
if (grub_errno == GRUB_ERR_NONE)
grub_xputs ("\n");
grub_refresh ();
}
fail:
if (dev)
grub_device_close (dev);
grub_free (device_name);
return 0;
}
static grub_err_t
grub_cmd_ls (grub_extcmd_context_t ctxt, int argc, char **args)
{
struct grub_arg_list *state = ctxt->state;
int i;
if (argc == 0)
grub_ls_list_devices (state[0].set);
else
for (i = 0; i < argc; i++)
grub_ls_list_files (args[i], state[0].set, state[2].set,
state[1].set);
return 0;
}
static grub_extcmd_t cmd;
GRUB_MOD_INIT(ls)
{
cmd = grub_register_extcmd ("ls", grub_cmd_ls, 0,
N_("[-l|-h|-a] [FILE ...]"),
N_("List devices and files."), options);
}
GRUB_MOD_FINI(ls)
{
grub_unregister_extcmd (cmd);
}