X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fsavedir.c;h=b08f32b7916de07b3891e16d5fbedf0fc85c0a29;hb=5912e24cb503d5238ab9180b98f0215e871a6abc;hp=a1f8a6cd7a6234b88769b00501a5502830e89907;hpb=552a680fa612218b68d4ef2f49bc276b95f6677b;p=gnulib.git

diff --git a/lib/savedir.c b/lib/savedir.c
index a1f8a6cd7..b08f32b79 100644
--- 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 1990, 1997, 1998, 1999, 2000, 2001, 2003 Free Software
-   Foundation, Inc.
+   Copyright 1990, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005 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
@@ -15,20 +15,19 @@
 
    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.  */
+   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 /* Written by David MacKenzie <djm@gnu.ai.mit.edu>. */
 
-#if HAVE_CONFIG_H
+#ifdef HAVE_CONFIG_H
 # include <config.h>
 #endif
 
+#include "savedir.h"
+
 #include <sys/types.h>
 
 #include <errno.h>
-#ifndef errno
-extern int errno;
-#endif
 
 #if HAVE_DIRENT_H
 # include <dirent.h>
@@ -52,46 +51,49 @@ extern int errno;
 # define CLOSEDIR(d) closedir (d)
 #endif
 
-#ifdef STDC_HEADERS
-# include <stdlib.h>
-# include <string.h>
-#endif
 #include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
 
-#include "savedir.h"
+#include "openat.h"
 #include "xalloc.h"
 
-/* Return a freshly allocated string containing the filenames
-   in directory DIR, separated by '\0' characters;
-   the end is marked by two '\0' characters in a row.
-   Return NULL (setting errno) if DIR cannot be opened, read, or closed.  */
-
 #ifndef NAME_SIZE_DEFAULT
 # define NAME_SIZE_DEFAULT 512
 #endif
 
-char *
-savedir (const char *dir)
+/* 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.
+   If DIRP is NULL, return NULL without affecting errno.  */
+
+static char *
+savedirstream (DIR *dirp)
 {
-  DIR *dirp;
-  struct dirent *dp;
   char *name_space;
   size_t allocated = NAME_SIZE_DEFAULT;
   size_t used = 0;
   int save_errno;
 
-  dirp = opendir (dir);
   if (dirp == NULL)
     return NULL;
 
   name_space = xmalloc (allocated);
 
-  errno = 0;
-  while ((dp = readdir (dirp)) != NULL)
+  for (;;)
     {
+      struct dirent const *dp;
+      char const *entry;
+
+      errno = 0;
+      dp = readdir (dirp);
+      if (! dp)
+	break;
+
       /* Skip "", ".", and "..".  "" is returned by at least one buggy
-         implementation: Solaris 2.4 readdir on NFS filesystems.  */
-      char const *entry = dp->d_name;
+         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 = strlen (entry) + 1;
@@ -125,3 +127,25 @@ savedir (const char *dir)
     }
   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.
+   Return NULL (setting errno) if DIR cannot be opened, read, or closed.  */
+
+char *
+savedir (char const *dir)
+{
+  return savedirstream (opendir (dir));
+}
+
+/* Return a freshly allocated string containing the file names
+   in directory FD, separated by '\0' characters;
+   the end is marked by two '\0' characters in a row.
+   Return NULL (setting errno) if FD cannot be read or closed.  */
+
+char *
+fdsavedir (int fd)
+{
+  return savedirstream (fdopendir (fd));
+}