maint: update copyright

[gnulib.git] / lib / savedir.c

diff --git a/lib/savedir.c b/lib/savedir.c
index 5e69d38..6e9c66c 100644 (file)
--- a/lib/savedir.c
+++ b/lib/savedir.c
@@ -1,7 +1,7 @@
 /* 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, 2009 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1997-2001, 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
@@ -28,7 +28,7 @@
 
 #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>
@@ -44,11 +44,11 @@
 /* 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;
@@ -68,36 +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);
@@ -107,6 +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.
@@ -123,6 +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)
 {