maint: update copyright

[gnulib.git] / lib / dirname.c

diff --git a/lib/dirname.c b/lib/dirname.c
index 9290614..94f1a36 100644 (file)
--- a/lib/dirname.c
+++ b/lib/dirname.c
@@ -1,10 +1,12 @@
-/* dirname.c -- return all but the last element in a path
-   Copyright (C) 1990 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, 2009-2014 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
@@ -12,59 +14,25 @@
    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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#ifdef HAVE_CONFIG_H
 #include <config.h>
-#endif
 
-#ifdef STDC_HEADERS
+#include "dirname.h"
+
 #include <stdlib.h>
-#else
-char *malloc ();
-#endif
-#if defined(STDC_HEADERS) || defined(HAVE_STRING_H)
 #include <string.h>
-#ifndef rindex
-#define rindex strrchr
-#endif
-#else
-#include <strings.h>
-#endif
+#include "xalloc.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.  */
+/* 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 *
-dirname (path)
-     char *path;
+dir_name (char const *file)
 {
-  char *newpath;
-  char *slash;
-  int length;                  /* Length of result, not including NUL.  */
-
-  slash = rindex (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 = 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;
 }