/* vi: set sw=4 ts=4: */
/*
- * Utility routines.
+ * bb_get_last_path_component implementation for busybox
*
- * Copyright (C) tons of folks. Tracking down who wrote what
- * isn't something I'm going to worry about... If you wrote something
- * here, please feel free to acknowledge your work.
- *
- * 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
- *
- * Based in part on code from sash, Copyright (c) 1999 by David I. Bell
- * Permission has been granted to redistribute this code under the GPL.
+ * Copyright (C) 2001 Manuel Novoa III <mjn3@codepoet.org>
*
+ * Licensed under GPLv2 or later, see file LICENSE in this source tree.
*/
-
-#include <stdio.h>
-#include <string.h>
#include "libbb.h"
-
-char *get_last_path_component(char *path)
+const char* FAST_FUNC bb_basename(const char *name)
{
- char *s;
- register char *ptr = path;
- register char *prev = 0;
-
- while (*ptr)
- ptr++;
- s = ptr - 1;
+ const char *cp = strrchr(name, '/');
+ if (cp)
+ return cp + 1;
+ return name;
+}
- /* strip trailing slashes */
- while (s != path && *s == '/') {
- *s-- = '\0';
- }
+/*
+ * "/" -> "/"
+ * "abc" -> "abc"
+ * "abc/def" -> "def"
+ * "abc/def/" -> ""
+ */
+char* FAST_FUNC bb_get_last_path_component_nostrip(const char *path)
+{
+ char *slash = strrchr(path, '/');
- /* find last component */
- ptr = path;
- while (*ptr != '\0') {
- if (*ptr == '/')
- prev = ptr;
- ptr++;
- }
- s = prev;
+ if (!slash || (slash == path && !slash[1]))
+ return (char*)path;
- if (s == NULL || s[1] == '\0')
- return path;
- else
- return s+1;
+ return slash + 1;
}
-
-/* END CODE */
/*
-Local Variables:
-c-file-style: "linux"
-c-basic-offset: 4
-tab-width: 4
-End:
-*/
+ * "/" -> "/"
+ * "abc" -> "abc"
+ * "abc/def" -> "def"
+ * "abc/def/" -> "def" !!
+ */
+char* FAST_FUNC bb_get_last_path_component_strip(char *path)
+{
+ char *slash = last_char_is(path, '/');
+
+ if (slash)
+ while (*slash == '/' && slash != path)
+ *slash-- = '\0';
+
+ return bb_get_last_path_component_nostrip(path);
+}