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Fetch and store FileAllInformation rather than FileNetworkOpenInformation

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* path.h (class path_conv_handle): Use FILE_ALL_INFORMATION instead of
        FILE_NETWORK_OPEN_INFORMATION.  Use definitions from ntdll.h since it's
        included anyway.
        (path_conv_handle::fai): Change name from fnoi.
        (path_conv::fai): Ditto.
        (file_get_fai): Change name from file_get_fnoi.  Drop second parameter.
        * path.cc (file_get_fai): Ditto.  Fetch FileAllInformation rather than
        FileNetworkOpenInformation.  Convert STATUS_BUFFER_OVERFLOW to
        STATUS_SUCCESS.  Remove workaround to fetch FileBasicInformation and
        FileStandardInformation on filesystems with broken
        FileNetworkOpenInformation handling.
        (symlink_info::check): Accommodate above changes.  In case of using
        the NtQueryDirectoryFile fallback, fetch FileIdBothDirectoryInformation
        to get inode number as well.
        * fhandler_disk_file.cc (fhandler_base::fstat_by_handle): Drop outdated
        comment.  Accommodate change to using FileAllInformation.  Drop
        extra function calls to fetch NumberOfLinks and IndexNumber.  Set ino
        directly from IndexNumber stored in pc.fai().  Drop second argument
        from call to fstat_helper.
        (fhandler_base::fstat_by_name): Drop second argument from call to
        fstat_helper.
        (fhandler_base::fstat_helper): Drop second parameter.  Accommodate
        the fact that we access a FILE_ALL_INFORMATION structure now.
        (fhandler_base::open_fs): Set ino directly from IndexNumber stored in
        pc.fai().
        * fhandler.h (fhandler_base::fstat_helper): Fix declaration accrdingly.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2015-12-10 00:02:34 +01:00
parent a0e7563eb0
commit eed35efbe6
5 changed files with 83 additions and 119 deletions
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3
winsup/cygwin/fhandler.h
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@@ -341,8 +341,7 @@ class fhandler_base
void __reg2 stat_fixup (struct stat *buf);
int __reg2 fstat_fs (struct stat *buf);
private:
int __reg3 fstat_helper (struct stat *buf,
DWORD nNumberOfLinks);
int __reg2 fstat_helper (struct stat *buf);
int __reg2 fstat_by_nfs_ea (struct stat *buf);
int __reg2 fstat_by_handle (struct stat *buf);
int __reg2 fstat_by_name (struct stat *buf);