Path length issues
Posted: 15.08.2015, 17:35
Hello,
because there were cases when a directory or file wasn't named as I told to name it, I did some testing with path lengths. Please copy the data into a text editor and inspect it with a monospace font (without wrapping lines).
Note:
FreeCommander XE 2015 Build 685 32-bit public)
because there were cases when a directory or file wasn't named as I told to name it, I did some testing with path lengths. Please copy the data into a text editor and inspect it with a monospace font (without wrapping lines).
- The file system is NTFS
- I know the number 260 is related to the MAX_PATH constant of the Windows API
- Create the directories one after the other
Code: Select all
This:
C:\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiijjjjjjjjjjj
Gets truncated to:
C:\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiii
aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiii
Creation silently rejected:
C:\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiijjjjjjjjjjjj
This:
C:\FreeCommander test\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiiiiiiiiiiiii
Gets truncated to:
C:\FreeCommander test\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggg
aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggg
Creation silently rejected:
C:\FreeCommander test\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiiiiiiiiiiiiii
This:
C:\FreeCommander test\FreeCommander test\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhhhhiiiiiiiii
^- Conclusion: Maximum path length of 259 characters
Gets truncated to:
C:\FreeCommander test\FreeCommander test\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeff
aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeff
^- Conclusion: Maximum item length every time reduced by 38 characters
Creation silently rejected:
C:\FreeCommander test\FreeCommander test\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhhhhiiiiiiiiii
^- Conclusion: 260 characters of path length and more rejected
This is the first path length (124 characters):
C:\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccdddddddddddddddd
That leads to the effect of a subfolder being named wrongly (tried to create folder "a"):
C:\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccdddddddddddddddd\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccdddddddddddddddd (2)
A path length of 123 characters doesn't lead to this issue.
This is the first path length (124 characters):
C:\FreeCommander test\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccc
That leads to the effect of a subfolder being named wrongly (tried to create folder "a"):
C:\FreeCommander test\FreeCommander test\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccc\aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccc (2)
A path length of 123 characters doesn't lead to this issue.
Create a directory in:
C:\FreeCommander test
and rename it to (path length of 260 characters):
aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiijjjjjjjjjjjj
This leads to two dialogs: one from Windows, one from FreeCommander.
Create a directory in:
C:\FreeCommander test
Create a file in it:
a.txt
Rename the directory to (path length of 257 characters):
aaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffgggggggggggggggghhhhhhhhhhhhhhhhhhhhiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiijjjjjjjjj
Rename the file to (path length of 496 characters):
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbccccccccccccccccccccccccccccccccccccdddddddddddddddddddddddddddddeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeffffffffffffffffffffffffffffffffffffffffffffffggggggggggggggggggggggggggggg.txt
Strangely this works, but one more character for the file doesn't work.
- Most lines implicate what to do
- Further, FreeCommander should show a message box instead of silently rejecting the creation of a directory or folder
FreeCommander XE 2015 Build 685 32-bit public)