aebe31c375
Let's provide file type info to the I/O layer. This way verifiers framework and its users will be able to differentiate files and verify only required ones. This is preparatory patch. Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> Reviewed-by: Ross Philipson <ross.philipson@oracle.com>
302 lines
6.8 KiB
C
302 lines
6.8 KiB
C
/* ls.c - command to list files and devices */
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/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 2003,2005,2007,2008,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/types.h>
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#include <grub/misc.h>
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#include <grub/mm.h>
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#include <grub/err.h>
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#include <grub/dl.h>
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#include <grub/disk.h>
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#include <grub/device.h>
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#include <grub/term.h>
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#include <grub/partition.h>
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#include <grub/file.h>
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#include <grub/normal.h>
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#include <grub/extcmd.h>
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#include <grub/datetime.h>
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#include <grub/i18n.h>
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#include <grub/net.h>
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GRUB_MOD_LICENSE ("GPLv3+");
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static const struct grub_arg_option options[] =
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{
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{"long", 'l', 0, N_("Show a long list with more detailed information."), 0, 0},
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{"human-readable", 'h', 0, N_("Print sizes in a human readable format."), 0, 0},
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{"all", 'a', 0, N_("List all files."), 0, 0},
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{0, 0, 0, 0, 0, 0}
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};
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/* Helper for grub_ls_list_devices. */
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static int
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grub_ls_print_devices (const char *name, void *data)
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{
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int *longlist = data;
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if (*longlist)
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grub_normal_print_device_info (name);
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else
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grub_printf ("(%s) ", name);
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return 0;
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}
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static grub_err_t
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grub_ls_list_devices (int longlist)
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{
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grub_device_iterate (grub_ls_print_devices, &longlist);
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grub_xputs ("\n");
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#if 0
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{
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grub_net_app_level_t proto;
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int first = 1;
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FOR_NET_APP_LEVEL (proto)
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{
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if (first)
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grub_puts_ (N_ ("Network protocols:"));
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first = 0;
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grub_printf ("%s ", proto->name);
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}
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grub_xputs ("\n");
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}
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#endif
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grub_refresh ();
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return 0;
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}
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/* Context for grub_ls_list_files. */
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struct grub_ls_list_files_ctx
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{
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char *dirname;
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int all;
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int human;
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};
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/* Helper for grub_ls_list_files. */
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static int
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print_files (const char *filename, const struct grub_dirhook_info *info,
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void *data)
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{
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struct grub_ls_list_files_ctx *ctx = data;
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if (ctx->all || filename[0] != '.')
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grub_printf ("%s%s ", filename, info->dir ? "/" : "");
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return 0;
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}
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/* Helper for grub_ls_list_files. */
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static int
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print_files_long (const char *filename, const struct grub_dirhook_info *info,
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void *data)
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{
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struct grub_ls_list_files_ctx *ctx = data;
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if ((! ctx->all) && (filename[0] == '.'))
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return 0;
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if (! info->dir)
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{
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grub_file_t file;
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char *pathname;
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if (ctx->dirname[grub_strlen (ctx->dirname) - 1] == '/')
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pathname = grub_xasprintf ("%s%s", ctx->dirname, filename);
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else
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pathname = grub_xasprintf ("%s/%s", ctx->dirname, filename);
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if (!pathname)
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return 1;
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/* XXX: For ext2fs symlinks are detected as files while they
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should be reported as directories. */
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file = grub_file_open (pathname, GRUB_FILE_TYPE_GET_SIZE
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| GRUB_FILE_TYPE_NO_DECOMPRESS);
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if (! file)
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{
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grub_errno = 0;
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grub_free (pathname);
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return 0;
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}
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if (! ctx->human)
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grub_printf ("%-12llu", (unsigned long long) file->size);
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else
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grub_printf ("%-12s", grub_get_human_size (file->size,
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GRUB_HUMAN_SIZE_SHORT));
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grub_file_close (file);
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grub_free (pathname);
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}
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else
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grub_printf ("%-12s", _("DIR"));
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if (info->mtimeset)
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{
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struct grub_datetime datetime;
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grub_unixtime2datetime (info->mtime, &datetime);
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if (ctx->human)
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grub_printf (" %d-%02d-%02d %02d:%02d:%02d %-11s ",
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datetime.year, datetime.month, datetime.day,
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datetime.hour, datetime.minute,
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datetime.second,
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grub_get_weekday_name (&datetime));
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else
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grub_printf (" %04d%02d%02d%02d%02d%02d ",
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datetime.year, datetime.month,
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datetime.day, datetime.hour,
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datetime.minute, datetime.second);
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}
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grub_printf ("%s%s\n", filename, info->dir ? "/" : "");
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return 0;
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}
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static grub_err_t
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grub_ls_list_files (char *dirname, int longlist, int all, int human)
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{
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char *device_name;
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grub_fs_t fs;
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const char *path;
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grub_device_t dev;
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device_name = grub_file_get_device_name (dirname);
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dev = grub_device_open (device_name);
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if (! dev)
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goto fail;
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fs = grub_fs_probe (dev);
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path = grub_strchr (dirname, ')');
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if (! path)
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path = dirname;
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else
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path++;
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if (! path && ! device_name)
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{
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grub_error (GRUB_ERR_BAD_ARGUMENT, "invalid argument");
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goto fail;
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}
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if (! *path)
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{
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if (grub_errno == GRUB_ERR_UNKNOWN_FS)
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grub_errno = GRUB_ERR_NONE;
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#ifdef GRUB_MACHINE_IEEE1275
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/*
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* Close device to prevent a double open in grub_normal_print_device_info().
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* Otherwise it may lead to hangs on some IEEE 1275 platforms.
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*/
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grub_device_close (dev);
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dev = NULL;
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#endif
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grub_normal_print_device_info (device_name);
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}
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else if (fs)
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{
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struct grub_ls_list_files_ctx ctx = {
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.dirname = dirname,
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.all = all,
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.human = human
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};
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if (longlist)
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(fs->dir) (dev, path, print_files_long, &ctx);
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else
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(fs->dir) (dev, path, print_files, &ctx);
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if (grub_errno == GRUB_ERR_BAD_FILE_TYPE
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&& path[grub_strlen (path) - 1] != '/')
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{
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/* PATH might be a regular file. */
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char *p;
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grub_file_t file;
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struct grub_dirhook_info info;
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grub_errno = 0;
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file = grub_file_open (dirname, GRUB_FILE_TYPE_GET_SIZE
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| GRUB_FILE_TYPE_NO_DECOMPRESS);
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if (! file)
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goto fail;
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grub_file_close (file);
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p = grub_strrchr (dirname, '/') + 1;
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dirname = grub_strndup (dirname, p - dirname);
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if (! dirname)
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goto fail;
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all = 1;
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grub_memset (&info, 0, sizeof (info));
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if (longlist)
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print_files_long (p, &info, &ctx);
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else
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print_files (p, &info, &ctx);
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grub_free (dirname);
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}
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if (grub_errno == GRUB_ERR_NONE)
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grub_xputs ("\n");
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grub_refresh ();
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}
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fail:
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if (dev)
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grub_device_close (dev);
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grub_free (device_name);
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return 0;
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}
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static grub_err_t
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grub_cmd_ls (grub_extcmd_context_t ctxt, int argc, char **args)
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{
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struct grub_arg_list *state = ctxt->state;
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int i;
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if (argc == 0)
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grub_ls_list_devices (state[0].set);
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else
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for (i = 0; i < argc; i++)
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grub_ls_list_files (args[i], state[0].set, state[2].set,
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state[1].set);
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return 0;
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}
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static grub_extcmd_t cmd;
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GRUB_MOD_INIT(ls)
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{
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cmd = grub_register_extcmd ("ls", grub_cmd_ls, 0,
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N_("[-l|-h|-a] [FILE ...]"),
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N_("List devices and files."), options);
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}
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GRUB_MOD_FINI(ls)
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{
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grub_unregister_extcmd (cmd);
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}
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