* include/applets.h (CONFIG_LOSETUP): New.

* include/usage.h (losetup_trivial_usage, losetup_full_usage): New.
* util-linux/Makefile: Add losetup.o.
* util-linux/config.in: Add losetup prompt.
* util-linux/losetup.c: New.

util-linux/losetup.c

@@ -0,0 +1,58 @@
+/*
+ * Mini losetup implementation for busybox
+ *
+ * Copyright (C) 2002  Matt Kraai.
+ *
+ * This program 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 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include <getopt.h>
+#include <stdlib.h>
+
+#include "busybox.h"
+
+int
+losetup_main (int argc, char **argv)
+{
+  int delete = 0;
+  int offset = 0;
+  int opt;
+
+  while ((opt = getopt (argc, argv, "do:")) != -1)
+    switch (opt)
+      {
+      case 'd':
+	delete = 1;
+	break;
+
+      case 'o':
+	offset = parse_number (optarg, NULL);
+	break;
+
+      default:
+	show_usage ();
+      }
+
+  if ((delete && (offset || optind + 1 != argc))
+      || (!delete && optind + 2 != argc))
+    show_usage ();
+
+  if (delete)
+    return del_loop (argv[optind]) ? EXIT_SUCCESS : EXIT_FAILURE;
+  else
+    return set_loop (argv[optind], argv[optind + 1], offset, &opt)
+      ? EXIT_FAILURE : EXIT_SUCCESS;
+}