*
* 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 <getopt.h>
#include "busybox.h"
-#ifdef CONFIG_FEATURE_READLINK_FOLLOW
-# define READLINK_FOLLOW "f"
-# define READLINK_FLAG_f (1 << 0)
-#else
-# define READLINK_FOLLOW ""
-#endif
-
-static const char readlink_options[] = READLINK_FOLLOW;
+#define READLINK_FLAG_f (1 << 0)
int readlink_main(int argc, char **argv)
{
- char *buf = NULL;
- unsigned long opt = bb_getopt_ulflags(argc, argv, readlink_options);
-#ifdef CONFIG_FEATURE_READLINK_FOLLOW
- RESERVE_CONFIG_BUFFER(resolved_path, PATH_MAX);
-#endif
-
- if (optind + 1 != argc)
- bb_show_usage();
-
-#ifdef CONFIG_FEATURE_READLINK_FOLLOW
- if (opt & READLINK_FLAG_f) {
- buf = realpath(argv[optind], resolved_path);
- } else
-#endif
- buf = xreadlink(argv[optind]);
+ char *buf;
+ unsigned long opt = ENABLE_FEATURE_READLINK_FOLLOW ?
+ bb_getopt_ulflags(argc, argv, "f") : 0;
+
+ if (argc != (ENABLE_FEATURE_READLINK_FOLLOW ? optind + 1 : 2))
+ bb_show_usage();
+
+ if (opt & READLINK_FLAG_f)
+ buf = realpath(argv[optind], NULL);
+ else
+ buf = xreadlink(argv[ENABLE_FEATURE_READLINK_FOLLOW ? optind : 1]);
if (!buf)
return EXIT_FAILURE;