X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fdirname.c;h=94f1a36a1afc3b35246b427251b96f171a3d278b;hb=1276a2c5f24c0c932426aca9c899fa524d2443f2;hp=e6609f1ee877e85ec643f189e6bef1d5918b47b0;hpb=03400241c02dd009c48992ce9b527176d02bb472;p=gnulib.git

diff --git a/lib/dirname.c b/lib/dirname.c
index e6609f1ee..94f1a36a1 100644
--- 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, 1998, 2000 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
@@ -12,81 +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.  */
-
-#if HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#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 <assert.h>
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#ifndef ISSLASH
-# define ISSLASH(C) ((C) == '/')
-#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, '/');
-
-  /* Make sure there are no trailing slashes.  */
-  assert (slash == NULL	   /* There are no slashes in PATH.  */
-	  || slash[1] != 0 /* There is a non-NUL byte after the last slash.  */
-	  || path == slash /* PATH is just `/'.  */
-	  );
-
-  if (slash == 0)
-    {
-      /* File is in the current directory.  */
-      path = ".";
-      length = 1;
-    }
-  else
-    {
-      /* Remove any trailing slashes from the result.  */
-#ifdef MSDOS
-      const char *lim = ((path[0] >= 'A' && path[0] <= 'z' && path[1] == ':')
-			 ? path + 2 : path);
-
-      /* If canonicalized "d:/path", leave alone the root case "d:/".  */
-      while (slash > lim && *slash == '/')
-	--slash;
-#else
-      while (slash > path && *slash == '/')
-	--slash;
-#endif
-
-      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;
 }