merge mainline into hints

grub-core/commands/search_wrap.c

@@ -0,0 +1,98 @@
+/* search.c - search devices based on a file or a filesystem label */
+/*
+ *  GRUB  --  GRand Unified Bootloader
+ *  Copyright (C) 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/env.h>
+#include <grub/extcmd.h>
+#include <grub/search.h>
+#include <grub/i18n.h>
+
+static const struct grub_arg_option options[] =
+  {
+    {"file",		'f', 0, N_("Search devices by a file."), 0, 0},
+    {"label",		'l', 0, N_("Search devices by a filesystem label."),
+     0, 0},
+    {"fs-uuid",		'u', 0, N_("Search devices by a filesystem UUID."),
+     0, 0},
+    {"set",		's', GRUB_ARG_OPTION_OPTIONAL,
+     N_("Set a variable to the first device found."), "VAR", ARG_TYPE_STRING},
+    {"no-floppy",	'n', 0, N_("Do not probe any floppy drive."), 0, 0},
+    {0, 0, 0, 0, 0, 0}
+  };
+
+enum options
+  {
+    SEARCH_FILE,
+    SEARCH_LABEL,
+    SEARCH_FS_UUID,
+    SEARCH_SET,
+    SEARCH_NO_FLOPPY,
+ };
+
+static grub_err_t
+grub_cmd_search (grub_extcmd_context_t ctxt, int argc, char **args)
+{
+  struct grub_arg_list *state = ctxt->state;
+  const char *var = 0;
+
+  if (argc == 0)
+    return grub_error (GRUB_ERR_BAD_ARGUMENT, "no argument specified");
+
+  if (state[SEARCH_SET].set)
+    var = state[SEARCH_SET].arg ? state[SEARCH_SET].arg : "root";
+
+  if (state[SEARCH_LABEL].set)
+    grub_search_label (args[0], var, state[SEARCH_NO_FLOPPY].set, 
+		       (const char **) (args + 1), argc - 1);
+  else if (state[SEARCH_FS_UUID].set)
+    grub_search_fs_uuid (args[0], var, state[SEARCH_NO_FLOPPY].set,
+			 (const char **) (args + 1), argc - 1);
+  else if (state[SEARCH_FILE].set)
+    grub_search_fs_file (args[0], var, state[SEARCH_NO_FLOPPY].set, 
+			 (const char **) (args + 1), argc - 1);
+  else
+    return grub_error (GRUB_ERR_INVALID_COMMAND, "unspecified search type");
+
+  return grub_errno;
+}
+
+static grub_extcmd_t cmd;
+
+GRUB_MOD_INIT(search)
+{
+  cmd =
+    grub_register_extcmd ("search", grub_cmd_search,
+			  GRUB_COMMAND_FLAG_BOTH,
+			  N_("[-f|-l|-u|-s|-n] NAME [HINTS]"),
+			  N_("Search devices by file, filesystem label"
+			     " or filesystem UUID."
+			     " If --set is specified, the first device found is"
+			     " set to a variable. If no variable name is"
+			     " specified, \"root\" is used."),
+			  options);
+}
+
+GRUB_MOD_FINI(search)
+{
+  grub_unregister_extcmd (cmd);
+}