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-rw-r--r--grub-core/commands/ls.c302
1 files changed, 302 insertions, 0 deletions
diff --git a/grub-core/commands/ls.c b/grub-core/commands/ls.c
new file mode 100644
index 0000000..8e98c73
--- /dev/null
+++ b/grub-core/commands/ls.c
@@ -0,0 +1,302 @@
+/* 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}
+ };
+
+/* Helper for grub_ls_list_devices. */
+static int
+grub_ls_print_devices (const char *name, void *data)
+{
+ int *longlist = data;
+
+ if (*longlist)
+ grub_normal_print_device_info (name);
+ else
+ grub_printf ("(%s) ", name);
+
+ return 0;
+}
+
+static grub_err_t
+grub_ls_list_devices (int longlist)
+{
+ grub_device_iterate (grub_ls_print_devices, &longlist);
+ grub_xputs ("\n");
+
+#if 0
+ {
+ 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;
+}
+
+/* Context for grub_ls_list_files. */
+struct grub_ls_list_files_ctx
+{
+ char *dirname;
+ int all;
+ int human;
+};
+
+/* Helper for grub_ls_list_files. */
+static int
+print_files (const char *filename, const struct grub_dirhook_info *info,
+ void *data)
+{
+ struct grub_ls_list_files_ctx *ctx = data;
+
+ if (ctx->all || filename[0] != '.')
+ grub_printf ("%s%s ", filename, info->dir ? "/" : "");
+
+ return 0;
+}
+
+/* Helper for grub_ls_list_files. */
+static int
+print_files_long (const char *filename, const struct grub_dirhook_info *info,
+ void *data)
+{
+ struct grub_ls_list_files_ctx *ctx = data;
+
+ if ((! ctx->all) && (filename[0] == '.'))
+ return 0;
+
+ if (! info->dir)
+ {
+ grub_file_t file;
+ char *pathname;
+
+ if (ctx->dirname[grub_strlen (ctx->dirname) - 1] == '/')
+ pathname = grub_xasprintf ("%s%s", ctx->dirname, filename);
+ else
+ pathname = grub_xasprintf ("%s/%s", ctx->dirname, filename);
+
+ if (!pathname)
+ return 1;
+
+ /* XXX: For ext2fs symlinks are detected as files while they
+ should be reported as directories. */
+ file = grub_file_open (pathname, GRUB_FILE_TYPE_GET_SIZE
+ | GRUB_FILE_TYPE_NO_DECOMPRESS);
+ if (! file)
+ {
+ grub_errno = 0;
+ grub_free (pathname);
+ return 0;
+ }
+
+ if (! ctx->human)
+ grub_printf ("%-12llu", (unsigned long long) file->size);
+ else
+ grub_printf ("%-12s", grub_get_human_size (file->size,
+ GRUB_HUMAN_SIZE_SHORT));
+ 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 (ctx->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;
+}
+
+static 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;
+
+ 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 && device_name)
+ {
+ if (grub_errno == GRUB_ERR_UNKNOWN_FS)
+ grub_errno = GRUB_ERR_NONE;
+
+#ifdef GRUB_MACHINE_IEEE1275
+ /*
+ * Close device to prevent a double open in grub_normal_print_device_info().
+ * Otherwise it may lead to hangs on some IEEE 1275 platforms.
+ */
+ grub_device_close (dev);
+ dev = NULL;
+#endif
+
+ grub_normal_print_device_info (device_name);
+ }
+ else if (fs)
+ {
+ struct grub_ls_list_files_ctx ctx = {
+ .dirname = dirname,
+ .all = all,
+ .human = human
+ };
+
+ if (longlist)
+ (fs->fs_dir) (dev, path, print_files_long, &ctx);
+ else
+ (fs->fs_dir) (dev, path, print_files, &ctx);
+
+ 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;
+
+ file = grub_file_open (dirname, GRUB_FILE_TYPE_GET_SIZE
+ | GRUB_FILE_TYPE_NO_DECOMPRESS);
+ 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, &ctx);
+ else
+ print_files (p, &info, &ctx);
+
+ 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);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-05 02:55:34 +0000