*
* Copyright (C) 2000,2001 Matt Kraai <kraai@alumni.carnegiemellon.edu>
*
- * 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
- *
+ * Licensed under GPL v2, see file LICENSE in this tarball for details.
*/
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
+#include <getopt.h>
#include "busybox.h"
+#define READLINK_FLAG_f (1 << 0)
+
int readlink_main(int argc, char **argv)
{
- char *buf = NULL;
+ char *buf;
+ unsigned long opt = ENABLE_FEATURE_READLINK_FOLLOW ?
+ bb_getopt_ulflags(argc, argv, "f") : 0;
- /* no options, no getopt */
+ if (argc != (ENABLE_FEATURE_READLINK_FOLLOW ? optind + 1 : 2))
+ bb_show_usage();
- if (argc != 2)
- show_usage();
+ if (opt & READLINK_FLAG_f)
+ buf = realpath(argv[optind], NULL);
+ else
+ buf = xreadlink(argv[ENABLE_FEATURE_READLINK_FOLLOW ? optind : 1]);
- buf = xreadlink(argv[1]);
if (!buf)
return EXIT_FAILURE;
puts(buf);
-#ifdef CONFIG_FEATURE_CLEAN_UP
- free(buf);
-#endif
+
+ if (ENABLE_FEATURE_CLEAN_UP) free(buf);
return EXIT_SUCCESS;
}