-/* dirname.c -- return all but the last element in a path
- Copyright (C) 1990, 1998 Free Software Foundation, Inc.
+/* dirname.c -- return all but the last element in a file name
- This program is free software; you can redistribute it and/or modify
+ Copyright (C) 1990, 1998, 2000-2001, 2003-2006, 2009-2010 Free Software
+ Foundation, Inc.
+
+ 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, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 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
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. */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-#else
-char *malloc ();
-#endif
-#if defined STDC_HEADERS || defined HAVE_STRING_H
-# include <string.h>
-#else
-# include <strings.h>
-# ifndef strrchr
-# define strrchr rindex
-# endif
-#endif
+#include <config.h>
#include "dirname.h"
-/* Return the leading directories part of PATH,
- allocated with malloc. If out of memory, return 0.
- Assumes that trailing slashes have already been
- removed. */
+#include <stdlib.h>
+#include <string.h>
+#include "xalloc.h"
+
+/* Just like mdir_name (dirname-lgpl.c), except, rather than
+ returning NULL upon malloc failure, here, we report the
+ "memory exhausted" condition and exit. */
char *
-dir_name (const char *path)
+dir_name (char const *file)
{
- char *newpath;
- char *slash;
- int length; /* Length of result, not including NUL. */
-
- slash = strrchr (path, '/');
- if (slash == 0)
- {
- /* File is in the current directory. */
- path = ".";
- length = 1;
- }
- else
- {
- /* Remove any trailing slashes from the result. */
- while (slash > path && *slash == '/')
- --slash;
-
- length = slash - path + 1;
- }
- newpath = (char *) malloc (length + 1);
- if (newpath == 0)
- return 0;
- strncpy (newpath, path, length);
- newpath[length] = 0;
- return newpath;
+ char *result = mdir_name (file);
+ if (!result)
+ xalloc_die ();
+ return result;
}