1 /* Copyright (C) 2001,02 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, write to the Free
16 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
25 #include "dirstream.h"
27 /* Read a directory entry from DIRP. */
29 __readdir64_r (DIR *dirp, struct dirent64 *entry, struct dirent64 **result)
40 __libc_lock_lock (dirp->__lock);
44 if (dirp->__ptr - dirp->__data >= dirp->__size)
46 /* We've emptied out our buffer. Refill it. */
48 char *data = dirp->__data;
51 if (err = HURD_FD_PORT_USE (dirp->__fd,
62 /* DATA now corresponds to entry index DIRP->__entry_ptr. */
63 dirp->__entry_data = dirp->__entry_ptr;
65 if (data != dirp->__data)
67 /* The data was passed out of line, so our old buffer is no
68 longer useful. Deallocate the old buffer and reset our
69 information for the new buffer. */
70 __vm_deallocate (__mach_task_self (),
71 (vm_address_t) dirp->__data,
74 dirp->__allocation = round_page (dirp->__size);
77 /* Reset the pointer into the buffer. */
78 dirp->__ptr = dirp->__data;
87 /* We trust the filesystem to return correct data and so we
91 dp = (struct dirent64 *) dirp->__ptr;
92 dirp->__ptr += dp->d_reclen;
95 /* Loop to ignore deleted files. */
96 } while (dp->d_fileno == 0);
101 memcpy (entry->d_name, dp->d_name, dp->d_namlen + 1);
107 __libc_lock_unlock (dirp->__lock);
109 return dp ? 0 : err ? errno : 0;
112 weak_alias(__readdir64_r, readdir64_r)