* dirent/dirent.h: Declare fdopendir.

	* dirent/Versions: Export fdopendir for GLIBC_2.4.
	* dirent/Makefile (routines): Add fdopendir.
	(tests): Add tst-fdopendir.
	* dirent/tst-fdopendir.c: New file.
	* include/dirent.h: Declare __alloc_dir.
	* sysdeps/generic/fdopendir.c: New file.
	* sysdeps/unix/fdopendir.c: New file.
	* sysdeps/unix/opendir.c: Split off back part of opendir into new
	function __alloc_dir.

3 files changed, 136 insertions, 1 deletions

diff --git a/dirent/Versions b/dirent/Versions
index 9d96caeb36..41c1584426 100644
--- a/dirent/Versions
+++ b/dirent/Versions
@@ -41,4 +41,7 @@ libc {
     # g*
     getdirentries64;
   }
+  GLIBC_2.4 {
+    fdopendir;
+  }
 }
diff --git a/dirent/dirent.h b/dirent/dirent.h
index a5e8a004e2..ed4147dbca 100644
--- a/dirent/dirent.h
+++ b/dirent/dirent.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2000, 2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2000, 2003, 2004, 2005 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -134,6 +134,14 @@ typedef struct __dirstream DIR;
    marked with __THROW.  */
 extern DIR *opendir (__const char *__name) __nonnull ((1));
 
+#ifdef __USE_GNU
+/* Same as opendir, but open the stream on the file descriptor FD.
+
+   This function is a possible cancellation point and therefore not
+   marked with __THROW.  */
+extern DIR *fdopendir (int __fd);
+#endif
+
 /* Close the directory stream DIRP.
    Return 0 if successful, -1 if not.
 
diff --git a/dirent/tst-fdopendir.c b/dirent/tst-fdopendir.c
new file mode 100644
index 0000000000..3cf315d85c
--- /dev/null
+++ b/dirent/tst-fdopendir.c
@@ -0,0 +1,124 @@
+#include <stdio.h>
+#include <fcntl.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <stdbool.h>
+#include <string.h>
+
+
+static int
+do_test (void)
+{
+  char fname[] = "/tmp/jXXXXXX";
+  int fd = mkstemp (fname);
+  if (fd == -1)
+    {
+      puts ("mkstemp failed");
+      return 1;
+    }
+
+  write (fd, "hello", 5);
+  close (fd);
+
+  struct stat64 st;
+  if (stat64 (fname, &st) == -1)
+    {
+      puts ("first stat failed");
+      return 0;
+    }
+
+  /* Make sure there is enough time between the creation and the access.  */
+  sleep (2);
+
+  fd = open (fname, O_RDONLY | O_NOATIME);
+  if (fd == -1)
+    {
+      puts ("first open failed");
+      return 1;
+    }
+
+  char buf[5];
+  read(fd, buf, sizeof (buf));
+  close(fd);
+
+  struct stat64 st2;
+  if (stat64 (fname, &st2) == -1)
+    {
+      puts ("second stat failed");
+      return 0;
+    }
+
+  bool no_noatime = false;
+#ifdef _STATBUF_ST_NSEC
+  if (st.st_atim.tv_sec != st2.st_atim.tv_sec
+      || st.st_atim.tv_nsec != st2.st_atim.tv_nsec)
+#else
+  if (st.st_atime != st2.st_atime)
+#endif
+    {
+      puts ("file atime changed");
+      no_noatime = true;
+    }
+
+  unlink(fname);
+
+  strcpy(fname, "/tmp/dXXXXXX");
+  char *d = mkdtemp (fname);
+  if (d == NULL)
+    {
+      puts ("mkdtemp failed");
+      return 1;
+    }
+
+  if (stat64 (d, &st) == -1)
+    {
+      puts ("third stat failed");
+      return 0;
+    }
+  sleep (2);
+
+  fd = open64 (d, O_RDONLY|O_NDELAY|O_DIRECTORY|O_NOATIME);
+  if (fd == -1)
+    {
+      puts ("second open failed");
+      return 1;
+    }
+  DIR *dir = fdopendir (fd);
+  if (dir == NULL)
+    {
+      puts ("fdopendir failed");
+      return 1;
+    }
+
+  struct dirent *de;
+  while ((de = readdir (dir)) != NULL)
+    ;
+
+  closedir (dir);
+
+  if (stat64 (d, &st2) == -1)
+    {
+      puts ("fourth stat failed");
+      return 0;
+    }
+#ifdef _STATBUF_ST_NSEC
+  if (!no_noatime
+      && (st.st_atim.tv_sec != st2.st_atim.tv_sec
+	 || st.st_atim.tv_nsec != st2.st_atim.tv_nsec))
+#else
+  if (!no_noatime && st.st_atime != st2.st_atime)
+#endif
+    {
+      puts ("directory atime changed");
+      return 1;
+    }
+
+  rmdir(fname);
+
+  return 0;
+}
+
+#define TIMEOUT 6
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"