06785: Any driver that allows one to browse the host file system: Can't change into directories that have a "." prefix in their name

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
06785	Interface	Minor	Always	Dec 6, 2017, 17:06	Dec 24, 2017, 11:39

Tester	MrGW	View Status	Public	Platform	MAME (Self-compiled)
Assigned To	cuavas	Resolution	Fixed	OS	Linux (64-bit)
Status [?]	Resolved			Driver	trs/coco3.cpp
Version	0.192	Fixed in Version	0.193	Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	06785: Any driver that allows one to browse the host file system: Can't change into directories that have a "." prefix in their name
Description	While browsing my host file system in MAME (MESS)'s UI to mount a floppy disk image, I found out I can't change into a folder with a "." prefix (i.e. .mame). I've attached some screen shots that show the issue.
Steps To Reproduce	Here's an example using the coco3 driver: mame coco3 Enable UI (scroll-lock key on my PC). Hit TAB Select File Manager Select Floppy Disk 1 Use navigation menu and select a folder that begins with a single "." You will see an "error accessing" message
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	Any driver that allows one to browse the host file system

Attached Files	Screenshot from 2017-12-06 13-00-34.png (85,475 bytes) Dec 6, 2017, 19:01 Uploaded by MrGW

No.14493 Tafoid Administrator Dec 6, 2017, 22:48	I cannot test with Windows due to it not allowing creation of folders with a preceding period.
No.14494 cuavas Administrator Dec 6, 2017, 23:35	It seems to affect any path with "/." in it. I can access a directory beginning with "." in the working directory, but not anywhere else.
No.14502 Robbbert Senior Tester Dec 7, 2017, 23:26	You can create folders in Windows with a leading period at the command prompt. >md .k
No.14515 MrGW Tester Dec 10, 2017, 20:06	Thanks for the quick resolution!