X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fdirname.c;h=953a9acc3d39c9e58bd2f87db57c78772d48f11c;hb=542af6b9ca1011a9d304139cb8f5e7b6cf217c47;hp=7671a0d62e43cf9415df0f7c1d1d9ba83067061c;hpb=0e317a1cc4377db0ce7c56292048e0f3fb1854b9;p=gnulib.git

diff --git a/lib/dirname.c b/lib/dirname.c
index 7671a0d62..953a9acc3 100644
--- a/lib/dirname.c
+++ b/lib/dirname.c
@@ -1,12 +1,12 @@
-/* dirname.c -- return all but the last element in a path
+/* dirname.c -- return all but the last element in a file name
 
-   Copyright (C) 1990, 1998, 2000, 2001, 2003, 2004 Free Software
+   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
+   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
@@ -14,108 +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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
+#include <config.h>
 
 #include "dirname.h"
 
+#include <stdlib.h>
 #include <string.h>
 #include "xalloc.h"
 
-/* Return the length of `dirname (PATH)', or zero if PATH is
-   in the working directory.  Works properly even if
-   there are trailing slashes (by effectively ignoring them).  */
-size_t
-dir_len (char const *path)
-{
-  size_t prefix_length = FILE_SYSTEM_PREFIX_LEN (path);
-  size_t length;
-
-  /* Strip the basename and any redundant slashes before it.  */
-  for (length = base_name (path) - path;  prefix_length < length;  length--)
-    if (! ISSLASH (path[length - 1]))
-      return length;
-
-  /* But don't strip the only slash from "/".  */
-  return prefix_length + ISSLASH (path[prefix_length]);
-}
-
-/* Return the leading directories part of PATH,
-   allocated with xmalloc.
-   Works properly even if there are trailing slashes
-   (by effectively ignoring them).  */
+/* 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 (char const *path)
-{
-  size_t length = dir_len (path);
-  bool append_dot = (length == FILE_SYSTEM_PREFIX_LEN (path));
-  char *newpath = xmalloc (length + append_dot + 1);
-  memcpy (newpath, path, length);
-  if (append_dot)
-    newpath[length++] = '.';
-  newpath[length] = 0;
-  return newpath;
-}
-
-#ifdef TEST_DIRNAME
-/*
-
-Run the test like this (expect no output):
-  gcc -DHAVE_CONFIG_H -DTEST_DIRNAME -I.. -O -Wall \
-     basename.c dirname.c xmalloc.c error.c
-  sed -n '/^BEGIN-DATA$/,/^END-DATA$/p' dirname.c|grep -v DATA|./a.out
-
-If it's been built on a DOS or Windows platforms, run another test like
-this (again, expect no output):
-  sed -n '/^BEGIN-DOS-DATA$/,/^END-DOS-DATA$/p' dirname.c|grep -v DATA|./a.out
-
-BEGIN-DATA
-foo//// .
-bar/foo//// bar
-foo/ .
-/ /
-. .
-a .
-END-DATA
-
-BEGIN-DOS-DATA
-c:///// c:/
-c:/ c:/
-c:/. c:/
-c:foo c:.
-c:foo/bar c:foo
-END-DOS-DATA
-
-*/
-
-# define MAX_BUFF_LEN 1024
-# include <stdio.h>
-
-char *program_name;
-
-int
-main (int argc, char *argv[])
+dir_name (char const *file)
 {
-  char buff[MAX_BUFF_LEN + 1];
-
-  program_name = argv[0];
-
-  buff[MAX_BUFF_LEN] = 0;
-  while (fgets (buff, MAX_BUFF_LEN, stdin) && buff[0])
-    {
-      char path[MAX_BUFF_LEN];
-      char expected_result[MAX_BUFF_LEN];
-      char const *result;
-      sscanf (buff, "%s %s", path, expected_result);
-      result = dir_name (path);
-      if (strcmp (result, expected_result))
-	printf ("%s: got %s, expected %s\n", path, result, expected_result);
-    }
-  return 0;
+  char *result = mdir_name (file);
+  if (!result)
+    xalloc_die ();
+  return result;
 }
-#endif