find: improve usage text (Natanael Copa <natanael.copa@gmail.com>)

[oweals/busybox.git] / coreutils / realpath.c

diff --git a/coreutils/realpath.c b/coreutils/realpath.c
index ec98221adc2ee204da0ba8a78998935d2bd78732..b3f7e4957e87eb6185e6cc655a99c51fd6480615 100644 (file)
--- a/coreutils/realpath.c
+++ b/coreutils/realpath.c
@@ -1,36 +1,29 @@
-/*
- *  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.
- */
+/* vi: set sw=4 ts=4: */
 
 /* BB_AUDIT SUSv3 N/A -- Apparently a busybox extension. */
 
 /* Mar 16, 2003      Manuel Novoa III   (mjn3@codepoet.org)
  *
  * Now does proper error checking on output and returns a failure exit code
- * if one or more paths can not be resolved.
+ * if one or more paths cannot be resolved.
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
  */
 
-#include <limits.h>
-#include <stdlib.h>
 #include "busybox.h"
 
+int realpath_main(int argc, char **argv);
 int realpath_main(int argc, char **argv)
 {
        int retval = EXIT_SUCCESS;
 
+#if PATH_MAX > (BUFSIZ+1)
        RESERVE_CONFIG_BUFFER(resolved_path, PATH_MAX);
+# define resolved_path_MUST_FREE 1
+#else
+#define resolved_path bb_common_bufsiz1
+# define resolved_path_MUST_FREE 0
+#endif
 
        if (--argc == 0) {
                bb_show_usage();
@@ -46,9 +39,9 @@ int realpath_main(int argc, char **argv)
                }
        } while (--argc);
 
-#ifdef CONFIG_FEATURE_CLEAN_UP
+#if ENABLE_FEATURE_CLEAN_UP && resolved_path_MUST_FREE
        RELEASE_CONFIG_BUFFER(resolved_path);
 #endif
 
-       bb_fflush_stdout_and_exit(retval);
+       fflush_stdout_and_exit(retval);
 }