tar: postpone creation of symlinks with "suspicious" targets. Closes 8411

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

diff --git a/coreutils/dirname.c b/coreutils/dirname.c
index 3471a2631b1a7599e8b73a61ae670c1fff5ec782..511267b78ff2ca78fdb90e686b4ced18f80fdcb6 100644 (file)
--- a/coreutils/dirname.c
+++ b/coreutils/dirname.c
@@ -4,23 +4,40 @@
  *
  * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org>
  *
- * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
  */
+//config:config DIRNAME
+//config:      bool "dirname (289 bytes)"
+//config:      default y
+//config:      help
+//config:      dirname is used to strip a non-directory suffix from
+//config:      a file name.
+
+//applet:IF_DIRNAME(APPLET_NOFORK(dirname, dirname, BB_DIR_USR_BIN, BB_SUID_DROP, dirname))
+
+//kbuild:lib-$(CONFIG_DIRNAME) += dirname.o
 
 /* BB_AUDIT SUSv3 compliant */
 /* http://www.opengroup.org/onlinepubs/007904975/utilities/dirname.html */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include "busybox.h"
+//usage:#define dirname_trivial_usage
+//usage:       "FILENAME"
+//usage:#define dirname_full_usage "\n\n"
+//usage:       "Strip non-directory suffix from FILENAME"
+//usage:
+//usage:#define dirname_example_usage
+//usage:       "$ dirname /tmp/foo\n"
+//usage:       "/tmp\n"
+//usage:       "$ dirname /tmp/foo/\n"
+//usage:       "/tmp\n"
 
-int dirname_main(int argc, char **argv)
-{
-       if (argc != 2) {
-               bb_show_usage();
-       }
+#include "libbb.h"
 
-       puts(dirname(argv[1]));
+/* This is a NOFORK applet. Be very careful! */
 
-       bb_fflush_stdout_and_exit(EXIT_SUCCESS);
+int dirname_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int dirname_main(int argc UNUSED_PARAM, char **argv)
+{
+       puts(dirname(single_argv(argv)));
+       return fflush_all();
 }