1. hfsplus filesystem allows opendir() on plain files.
2. When opendir() is called on a plain file stored in an hfsplus
filesystem, opendir() fails to return 0 and set errno to ENOTDIR.
3. filesystem, hfsplus
4. Linux version 2.6.27-7-generic (buildd@palmer) (gcc version 4.3.2
(Ubuntu 4.3.2-1ubuntu11) ) #1 SMP Tue Nov 4 19:33:20 UTC 2008
5. unknown
6. n/a
7. Try the following program on files and directories first under a
mountpoint for an ext3 partition then under a mountpoint for an hfsplus
partition.
///////////////////////////////////
#include <dirent.h>
#include <stdio.h>
#include <errno.h>
// usage: opendir_test <file>|<directory>
int main( int argc, char** argv )
{
DIR* result = opendir( argv[1] );
printf("ENOTDIR is 0x%x\n", ENOTDIR );
printf("opendir '%s' returned 0x%x, errno 0x%x\n", argv[1], result,
errno );
return 0;
}
//////////////////////////////////
I get the following output:
damian@damian-laptop:~/code/opendir$ mkdir test_directory
damian@damian-laptop:~/code/opendir$ echo hello > test_file.txt
damian@damian-laptop:~/code/opendir$ ./opendir_test test_directory
ENOTDIR is 0x14
opendir 'test_directory' returned 0x88f6008, errno 0x0
damian@damian-laptop:~/code/opendir$ ./opendir_test test_file.txt
ENOTDIR is 0x14
opendir 'test_file.txt' returned 0x0, errno 0x14
# /osx is an HFSPLUS mountpoint
damian@damian-laptop:~/code/opendir$ cd /media/osx
# mkdir test_directory && echo hello > test_file.txt performed in OSX
damian@damian-laptop:/media/osx$ ./opendir_test test_directory
ENOTDIR is 0x14
opendir 'test_directory' returned 0x919d008, errno 0x0
# erroneous result follows
damian@damian-laptop:/media/osx$ ./opendir_test test_file.txt
ENOTDIR is 0x14
opendir 'test_file.txt' returned 0x9a23008, errno 0x0
damian@damian-laptop:/media/osx$
8. If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.
Linux damian-laptop 2.6.27-7-generic #1 SMP Tue Nov 4 19:33:20 UTC 2008
i686 GNU/Linux
Gnu C 4.3.2-1ubuntu11)
Gnu make 3.81
binutils Binutils
util-linux 2.14
mount support
module-init-tools 3.3-pre11
e2fsprogs 1.41.3
reiserfsprogs 3.6.19
pcmciautils 014
Linux C Library 2.8.90
Dynamic linker (ldd) 2.8.90
Procps 3.2.7
Net-tools 1.60
Kbd 1.14.1
Sh-utils 6.10
udev 124
wireless-tools 29
Modules Loaded ipv6 aes_i586 aes_generic nls_utf8 hfsplus i915 drm
af_packet binfmt_misc btusb sco bridge stp bnep rfcomm l2cap bluetooth
ppdev acpi_cpufreq cpufreq_stats cpufreq_powersave cpufreq_conservative
cpufreq_userspace cpufreq_ondemand freq_table container wmi pci_slot sbs
sbshc iptable_filter ip_tables x_tables sbp2 parport_pc lp parport joydev
snd_hda_intel arc4 snd_pcm_oss snd_mixer_oss iTCO_wdt ecb crypto_blkcipher
iTCO_vendor_support snd_pcm ath9k evdev appleir pcspkr appletouch
snd_seq_dummy mac80211 snd_seq_oss cfg80211 snd_seq_midi snd_rawmidi
snd_seq_midi_event snd_seq video snd_timer snd_seq_device output battery
snd ac intel_agp button soundcore agpgart shpchp pci_hotplug snd_page_alloc
ext3 jbd mbcache sd_mod crc_t10dif sr_mod cdrom sg ata_generic ata_piix
usbhid hid pata_acpi ohci1394 libata ieee1394 scsi_mod ehci_hcd uhci_hcd
dock usbcore sky2 thermal processor fan fbcon tileblit font bitblit
softcursor fuse
thanks
d
--
damian stewart | skype: damiansnz | damian@xxxxxxxxxx
frey | live art with machines | http://www.frey.co.nz
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