Re: [Bug] Strange Globing Behaviour when used with sudo

[Bengt Brodersen <bengt.brodersen@xxxxxxxxx>]

Just found a paragraph in stat(2) manpage on macos

_DARWIN_FEATURE_64_BIT_INODE
     In order to accommodate advanced capabilities of newer file systems,
the struct stat, struct statfs, and struct dirent data structures were
updated in Mac OSX 10.5.

     The most obvious change is the increased size of ino_t from 32 bits to
64 bits.  As a consequence, storing an ino_t in an int is no longer safe,
and file formats storing ino_t as 32-bit values may need to be
     updated.  There are other changes as well, such as the widening of
f_fstypename, f_mntonname, and f_mntfromname in struct statfs.  Please
refer to stat(2) and dir(5) for more detail on the specific changes to
     the other affected data structures.

     On platforms that existed before these updates were available, ABI
compatibility is achieved by providing two implementations for related
functions: one using the legacy data structures and one using the
     updated data structures.  Variants which make use of the newer
structures have their symbols suffixed with $INODE64.  These $INODE64
suffixes are automatically appended by the compiler tool-chain and should
     not be used directly.

     Platforms that were released after these updates only have the newer
variants available to them.  These platforms have the macro
_DARWIN_FEATURE_ONLY_64_BIT_INODE defined.

     The _DARWIN_FEATURE_64_BIT_INODE macro should not be set directly.
Instead, developers should make use of the _DARWIN_NO_64_BIT_INODE or
_DARWIN_USE_64_BIT_INODE macros when the default variant is not
     desired.  The following table details the effects of defining these
macros for different deployment targets.


          _DARWIN_FEATURE_ONLY_64_BIT_INODE not defined

     -------------------------+-------------------------------

                              |       Deployment Target

          user defines:       |   < 10.5       10.5    > 10.5

     -------------------------+-------------------------------

              (none)          |   32-bit      32-bit   64-bit

     _DARWIN_NO_64_BIT_INODE  |   32-bit      32-bit   32-bit

     _DARWIN_USE_64_BIT_INODE |   32-bit      64-bit   64-bit

     -------------------------+-------------------------------


            _DARWIN_FEATURE_ONLY_64_BIT_INODE defined

     -------------------------+-------------------------------

          user defines:       | Any Deployment Target

     -------------------------+-------------------------------

              (none)          | 64-bit-only

     _DARWIN_NO_64_BIT_INODE  |   (error)

     _DARWIN_USE_64_BIT_INODE | 64-bit-only

     -------------------------+-------------------------------

           32-bit       32-bit inode values are enabled, and the legacy
structures involving the ino_t type are in use.  The macro
_DARWIN_FEATURE_64_BIT_INODE is not defined.

           64-bit       64-bit inode values are enabled, and the expanded
structures involving the ino_t type are in use.  The macro
_DARWIN_FEATURE_64_BIT_INODE is defined, and loader symbols will contain the
                        $INODE64 suffix.

           64-bit-only  Like 64-bit, except loader symbols do not have the
$INODE64 suffix.

           (error)      A compile time error is generated.

     Due to the increased benefits of the larger structure, it is highly
recommended that developers not define _DARWIN_NO_64_BIT_INODE and make use
of _DARWIN_USE_64_BIT_INODE when targeting Mac OSX 10.5.

     In addition to the $INODE64 suffixed symbols, variants suffixed with
64 are also available for related functions.  These functions were provided
as a way for developers to use the updated structures in code
     that also made use of the legacy structures.  The enlarged stat
structures were also prefixed with 64 to distinguish them from their legacy
variants.  These functions have been deprecated and should be
     avoided.

On Wed, 30 May 2018 at 22:44 Bengt Brodersen <bengt.brodersen@xxxxxxxxx>
wrote:

> If you google *mac stat64 deprecated* you will get a lot of results.
> So maybe it caused by the depreciation on darwin os
>
> On Wed, 30 May 2018 at 22:24 Phil Pennock <
> zsh-workers+phil.pennock@xxxxxxxxxxxx> wrote:
>
>> On 2018-05-30 at 19:15 +0000, Daniel Shahaf wrote:
>> > > On Wed, May 30, 2018 at 10:11 AM, Bengt Brodersen
>> > > > sudo zsh -c 'echo ./*/'
>> > > >>> ./file/ ./folder/
>>
>> > - macOS 10.13.4 (17E202)
>> > - zsh 5.5.1 (x86_64-apple-darwin17.5.0)
>> >
>> > and that the issue still occurred under -fc.
>>
>> This appears to be macOS returning different results for stat64() for
>> root vs non-root.  Using dtruss:
>>
>> non-root:
>> open_nocancel("./\0", 0x1100004, 0x10040A3F8)            = 3 0
>> fstatfs64(0x3, 0x7FFF5F8A1338, 0x10040A3F8)              = 0 0
>> getdirentries64(0x3, 0x7FA30F805E00, 0x1000)             = 112 0
>> getdirentries64(0x3, 0x7FA30F805E00, 0x1000)             = 0 0
>> close_nocancel(0x3)              = 0 0
>> stat64("./dummy/.\0", 0x7FFF5F8A1948, 0x1000)            = -1 Err#20
>> stat64("./folder/.\0", 0x7FFF5F8A1948, 0x1000)           = 0 0
>>
>> root:
>> open_nocancel("./\0", 0x1100004, 0x10B5F8B28)            = 3 0
>> fstatfs64(0x3, 0x7FFF547471B8, 0x10B5F8B28)              = 0 0
>> getdirentries64(0x3, 0x7FAFD9821400, 0x1000)             = 112 0
>> getdirentries64(0x3, 0x7FAFD9821400, 0x1000)             = 0 0
>> close_nocancel(0x3)              = 0 0
>> stat64("./dummy/.\0", 0x7FFF547477C8, 0x1000)            = 0 0
>> stat64("./folder/.\0", 0x7FFF547477C8, 0x1000)           = 0 0
>>
>> <sys/errno.h> defines ENOTDIR as 20.
>>
>> -Phil
>>
>