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authorRoland McGrath <roland@gnu.org>2005-10-15 02:23:56 +0000
committerRoland McGrath <roland@gnu.org>2005-10-15 02:23:56 +0000
commit63be256ac14a5a67f4201525ae475e7c50be5fd6 (patch)
treec212d624b8f3209ee33ab8c290aed4964e409c92 /sysdeps/mach
parent4c16d207581b0cc22ab48f6857e7854e4e487d43 (diff)
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* sysdeps/mach/hurd/opendir.c (_hurd_fd_opendir): New function, broken
out of ... (__opendir): ... here. Call it. * sysdeps/mach/hurd/fdopendir.c: New file.
Diffstat (limited to 'sysdeps/mach')
-rw-r--r--sysdeps/mach/hurd/fdopendir.c55
-rw-r--r--sysdeps/mach/hurd/opendir.c65
2 files changed, 96 insertions, 24 deletions
diff --git a/sysdeps/mach/hurd/fdopendir.c b/sysdeps/mach/hurd/fdopendir.c
new file mode 100644
index 0000000000..d08e478c61
--- /dev/null
+++ b/sysdeps/mach/hurd/fdopendir.c
@@ -0,0 +1,55 @@
+/* Open a directory stream from a file descriptor. Hurd version.
+ Copyright (C) 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
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#include <dirent.h>
+#include <errno.h>
+#include <hurd.h>
+#include <hurd/fd.h>
+
+DIR *_hurd_fd_opendir (struct hurd_fd *d); /* opendir.c */
+
+/* Open a directory stream on FD. */
+DIR *
+fdopendir (int fd)
+{
+ struct hurd_fd *d = _hurd_fd_get (d);
+
+ if (d == NULL)
+ {
+ errno = EBADF;
+ return NULL;
+ }
+
+ /* Ensure that it's a directory. */
+ error_t err = HURD_FD_PORT_USE
+ (d, ({
+ file_t dir = __file_name_lookup_under (port, "/", O_NOTRANS, 0);
+ if (dir != MACH_PORT_NULL)
+ __mach_port_deallocate (__mach_task_self (), dir);
+ dir != MACH_PORT_NULL ? 0 : errno;
+ }));
+
+ if (err)
+ {
+ errno = err;
+ return NULL;
+ }
+
+ return _hurd_fd_opendir (d);
+}
diff --git a/sysdeps/mach/hurd/opendir.c b/sysdeps/mach/hurd/opendir.c
index a1ff947f06..949db0fff5 100644
--- a/sysdeps/mach/hurd/opendir.c
+++ b/sysdeps/mach/hurd/opendir.c
@@ -1,4 +1,5 @@
-/* Copyright (C) 1993,94,95,96,97,98,2001,2003 Free Software Foundation, Inc.
+/* Copyright (C) 1993,94,95,96,97,98,2001,2003,2005
+ 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
@@ -32,13 +33,46 @@
#include "dirstream.h"
+/* Open a directory stream on a file descriptor in Hurd internal form.
+ We do no checking here on the descriptor. */
+DIR *
+_hurd_fd_opendir (struct hurd_fd *d)
+{
+ DIR *dirp;
+
+ if (d == NULL)
+ {
+ errno = EBADF;
+ return NULL;
+ }
+
+ dirp = (DIR *) malloc (sizeof (DIR));
+ if (dirp == NULL)
+ return NULL;
+
+ /* Set the descriptor to close on exec. */
+ __spin_lock (&d->port.lock);
+ d->flags |= FD_CLOEXEC;
+ __spin_unlock (&d->port.lock);
+
+ dirp->__fd = d;
+ dirp->__data = dirp->__ptr = NULL;
+ dirp->__entry_data = dirp->__entry_ptr = 0;
+ dirp->__allocation = 0;
+ dirp->__size = 0;
+
+ __libc_lock_init (dirp->__lock);
+
+ return dirp;
+}
+
+
/* Open a directory stream on NAME. */
DIR *
__opendir (const char *name)
{
- DIR *dirp;
int fd;
- struct hurd_fd *d;
+ DIR *dirp;
if (name[0] == '\0')
{
@@ -71,29 +105,12 @@ __opendir (const char *name)
if (fd < 0)
return NULL;
- dirp = (DIR *) malloc (sizeof (DIR));
- if (dirp == NULL)
- {
- __close (fd);
- return NULL;
- }
-
/* Extract the pointer to the descriptor structure. */
- __mutex_lock (&_hurd_dtable_lock);
- d = dirp->__fd = _hurd_dtable[fd];
- __mutex_unlock (&_hurd_dtable_lock);
-
- /* Set the descriptor to close on exec. */
- __spin_lock (&d->port.lock);
- d->flags |= FD_CLOEXEC;
- __spin_unlock (&d->port.lock);
-
- dirp->__data = dirp->__ptr = NULL;
- dirp->__entry_data = dirp->__entry_ptr = 0;
- dirp->__allocation = 0;
- dirp->__size = 0;
+ dirp = _hurd_fd_opendir (_hurd_fd_get (fd));
+ if (dirp == NULL)
+ __close (fd);
- __libc_lock_init (dirp->__lock);
+ }
return dirp;
}