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* fhandler_disk_file.cc (fhandler_disk_file::opendir): Only set

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the dirent_get_d_ino flag on filesystems having useful File IDs.
	Add comment explaining why.
This commit is contained in:
Corinna Vinschen
2006-02-09 14:42:48 +00:00
parent 9d1c0a6053
commit 30f1c8a675
2 changed files with 19 additions and 3 deletions
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16
winsup/cygwin/fhandler_disk_file.cc
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@@ -1450,10 +1450,20 @@ fhandler_disk_file::opendir ()
__seterrno ();
goto free_dirent;
}
if (wincap.has_fileid_dirinfo ())
dir->__flags |= dirent_get_d_ino;
/* FileIdBothDirectoryInformation is apparently unsupported on XP
when accessing directories on UDF. When trying to use it so,
NtQueryDirectoryFile returns with STATUS_ACCESS_VIOLATION. It's
not clear if the call isn't also unsupported on other OS/FS
combinations (say, Win2K/CDFS or so). Instead of testing in
readdir for yet another error code, let's use
FileIdBothDirectoryInformation only on filesystems supporting
persistent ACLs, FileBothDirectoryInformation otherwise. */
if (pc.hasgood_inode ())
dir->__flags |= dirent_set_d_ino;
{
dir->__flags |= dirent_set_d_ino;
if (wincap.has_fileid_dirinfo ())
dir->__flags |= dirent_get_d_ino;
}
}
res = dir;
}