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-rw-r--r--ChangeLog8
-rw-r--r--dirent/Makefile5
-rw-r--r--dirent/tst-fdopendir2.c41
-rw-r--r--sysdeps/unix/fdopendir.c15
4 files changed, 65 insertions, 4 deletions
diff --git a/ChangeLog b/ChangeLog
index c3f5b20..f917969 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2006-01-20 Ulrich Drepper <drepper@redhat.com>
+
+ * sysdeps/unix/fdopendir.c (fdopendir): If O_DIRECTORY is
+ available, avoid stat call, use fcntl result to determine whether
+ descriptor is for a directory or not.
+ * dirent/Makefile (tests): Add tst-fdopendir2.
+ * dirent/tst-fdopendir2.c: New file.
+
2006-01-20 Alexandre Oliva <aoliva@redhat.com>
* sysdeps/unix/sysv/linux/x86_64/bits/sigcontext.h
diff --git a/dirent/Makefile b/dirent/Makefile
index ba492ca..ef639f2 100644
--- a/dirent/Makefile
+++ b/dirent/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2000, 2002, 2003, 2005 Free Software Foundation, Inc.
+# Copyright (C) 1991-2000,2002,2003,2005,2006 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
@@ -28,7 +28,8 @@ routines := opendir closedir readdir readdir_r rewinddir \
alphasort64 versionsort64 fdopendir
distribute := dirstream.h
-tests := list tst-seekdir opendir-tst1 bug-readdir1 tst-fdopendir
+tests := list tst-seekdir opendir-tst1 bug-readdir1 tst-fdopendir \
+ tst-fdopendir2
CFLAGS-scandir.c = $(uses-callbacks)
CFLAGS-scandir64.c = $(uses-callbacks)
diff --git a/dirent/tst-fdopendir2.c b/dirent/tst-fdopendir2.c
new file mode 100644
index 0000000..3720809
--- /dev/null
+++ b/dirent/tst-fdopendir2.c
@@ -0,0 +1,41 @@
+#include <errno.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <unistd.h>
+
+
+static int
+do_test (void)
+{
+ char tmpl[] = "/tmp/tst-fdopendir2-XXXXXX";
+ int fd = mkstemp (tmpl);
+ if (fd == -1)
+ {
+ puts ("cannot open temp file");
+ return 1;
+ }
+
+ errno = 0;
+ DIR *d = fdopendir (fd);
+
+ int e = errno;
+
+ close (fd);
+ unlink (tmpl);
+
+ if (d != NULL)
+ {
+ puts ("fdopendir with normal file descriptor did not fail");
+ return 1;
+ }
+ if (e != ENOTDIR)
+ {
+ printf ("fdopendir set errno to %d, not %d as expected\n", e, ENOTDIR);
+ return 1;
+ }
+
+ return 0;
+}
+
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"
diff --git a/sysdeps/unix/fdopendir.c b/sysdeps/unix/fdopendir.c
index 23d08fd..b586e58 100644
--- a/sysdeps/unix/fdopendir.c
+++ b/sysdeps/unix/fdopendir.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2005 Free Software Foundation, Inc.
+/* Copyright (C) 2005, 2006 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
@@ -29,6 +29,7 @@ fdopendir (int fd)
{
struct stat64 statbuf;
+#ifndef O_DIRECTORY
if (__builtin_expect (__fxstat64 (_STAT_VER, fd, &statbuf), 0) < 0)
return NULL;
if (__builtin_expect (! S_ISDIR (statbuf.st_mode), 0))
@@ -36,10 +37,20 @@ fdopendir (int fd)
__set_errno (ENOTDIR);
return NULL;
}
- /* Make sure the descriptor allows for reading. */
+#endif
+
+ /* Make sure the descriptor allows for reading (and eventually that
+ the descriptor is for a directory). */
int flags = __fcntl (fd, F_GETFL);
if (__builtin_expect (flags == -1, 0))
return NULL;
+#ifdef O_DIRECTORY
+ if (__builtin_expect ((flags & O_DIRECTORY) == 0, 0))
+ {
+ __set_errno (ENOTDIR);
+ return NULL;
+ }
+#endif
if (__builtin_expect ((flags & O_ACCMODE) == O_WRONLY, 0))
{
__set_errno (EINVAL);