X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fsavedir.c;h=6d5ed7f459a338de9eb973e1512c801ca75eacb8;hb=e7086a9a301ffcfef17edbcba9e7c0312c33f7a8;hp=d930fb4af273af105ae895fccdb34f1f1ac65476;hpb=854ebf64dc7dae95a43a4e139e075156d2add805;p=gnulib.git

diff --git a/lib/savedir.c b/lib/savedir.c
index d930fb4af..6d5ed7f45 100644
--- a/lib/savedir.c
+++ b/lib/savedir.c
@@ -1,12 +1,12 @@
 /* savedir.c -- save the list of files in a directory in a string
 
-   Copyright (C) 1990, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005,
-   2006 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1997-2001, 2003-2006, 2009-2013 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
@@ -14,8 +14,7 @@
    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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 /* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
 
@@ -27,35 +26,29 @@
 
 #include <errno.h>
 
-#include <dirent.h>
+#include "dirent--.h"
 #ifndef _D_EXACT_NAMLEN
-# define _D_EXACT_NAMLEN(dp)	strlen ((dp)->d_name)
+# define _D_EXACT_NAMLEN(dp)    strlen ((dp)->d_name)
 #endif
 
 #include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 
-#include "openat.h"
 #include "xalloc.h"
 
 #ifndef NAME_SIZE_DEFAULT
 # define NAME_SIZE_DEFAULT 512
 #endif
 
-/* The results of opendir() in this file are not used with dirfd and fchdir,
-   therefore save some unnecessary work in fchdir.c.  */
-#undef opendir
-#undef closedir
-
 /* Return a freshly allocated string containing the file names
    in directory DIRP, separated by '\0' characters;
    the end is marked by two '\0' characters in a row.
-   Return NULL (setting errno) if DIRP cannot be read or closed.
+   Return NULL (setting errno) if DIRP cannot be read.
    If DIRP is NULL, return NULL without affecting errno.  */
 
-static char *
-savedirstream (DIR *dirp)
+char *
+streamsavedir (DIR *dirp)
 {
   char *name_space;
   size_t allocated = NAME_SIZE_DEFAULT;
@@ -75,36 +68,34 @@ savedirstream (DIR *dirp)
       errno = 0;
       dp = readdir (dirp);
       if (! dp)
-	break;
+        break;
 
       /* Skip "", ".", and "..".  "" is returned by at least one buggy
          implementation: Solaris 2.4 readdir on NFS file systems.  */
       entry = dp->d_name;
       if (entry[entry[0] != '.' ? 0 : entry[1] != '.' ? 1 : 2] != '\0')
-	{
-	  size_t entry_size = _D_EXACT_NAMLEN (dp) + 1;
-	  if (used + entry_size < used)
-	    xalloc_die ();
-	  if (allocated <= used + entry_size)
-	    {
-	      do
-		{
-		  if (2 * allocated < allocated)
-		    xalloc_die ();
-		  allocated *= 2;
-		}
-	      while (allocated <= used + entry_size);
-
-	      name_space = xrealloc (name_space, allocated);
-	    }
-	  memcpy (name_space + used, entry, entry_size);
-	  used += entry_size;
-	}
+        {
+          size_t entry_size = _D_EXACT_NAMLEN (dp) + 1;
+          if (used + entry_size < used)
+            xalloc_die ();
+          if (allocated <= used + entry_size)
+            {
+              do
+                {
+                  if (2 * allocated < allocated)
+                    xalloc_die ();
+                  allocated *= 2;
+                }
+              while (allocated <= used + entry_size);
+
+              name_space = xrealloc (name_space, allocated);
+            }
+          memcpy (name_space + used, entry, entry_size);
+          used += entry_size;
+        }
     }
   name_space[used] = '\0';
   save_errno = errno;
-  if (closedir (dirp) != 0)
-    save_errno = errno;
   if (save_errno != 0)
     {
       free (name_space);
@@ -114,6 +105,22 @@ savedirstream (DIR *dirp)
   return name_space;
 }
 
+/* Like streamsavedir (DIRP), except also close DIRP.  */
+
+static char *
+savedirstream (DIR *dirp)
+{
+  char *name_space = streamsavedir (dirp);
+  if (dirp && closedir (dirp) != 0)
+    {
+      int save_errno = errno;
+      free (name_space);
+      errno = save_errno;
+      return NULL;
+    }
+  return name_space;
+}
+
 /* Return a freshly allocated string containing the file names
    in directory DIR, separated by '\0' characters;
    the end is marked by two '\0' characters in a row.
@@ -130,6 +137,7 @@ savedir (char const *dir)
    the end is marked by two '\0' characters in a row.
    Return NULL (setting errno) if FD cannot be read or closed.  */
 
+/* deprecated */
 char *
 fdsavedir (int fd)
 {