busybox-w32/win32, branch mount_point

win32: Unix-like support for volume mounts

2026-06-15T11:42:54+00:00

Add code to distinguish between volume mount points and junctions. Volume mount points are to be treated like directries while junctions are like symlinks. Update the 'mntent' functions to scan drive letters first, then volume names and their associated mount points. By default the filesystem is returned as a drive letter, if possible, though the volume name is also returned. The function 'find_mount_point()' has been updated to use the new 'mntent' routines. Adds 772-803 bytes. Signed-off-by: Ron Yorston

win32: extend handling of virtual disks

2026-06-08T13:02:15+00:00

Commit 62e4c5d29 (win32: special treatment for virtual hard disk) added special treatment for mount points associated with virtual hard disks. One statement made there was incorrect: a VHD without a drive letter containing no files *does* have a '.' directory. The error message for this case was misleading. The changes made to handle VHDs were insufficiently general: - lstat(2) only resolved symlinks for the explicit path '.'. It should also do so for paths of the form 'path/to/.'. - opendir(3) only generated entries for '.' and '..' directories when FindFirstFileA() failed for the path '.'. It should also do so for any path which resolves to a volume mount point. Make the necessary changes. Adds 64-80 bytes. (GitHub issue #597) Signed-off-by: Ron Yorston

win32: special treatment for virtual hard disk

2026-06-07T14:23:48+00:00

Virtual hard disks (VHD) without a drive letter gave incorrect results in 'ls' and 'stat'. There were two problems: - If the disk is empty it doesn't have a '.' directory. - If it contains files the '.' directory is actually the mount point, which looks like a symbolic link and can't be opened as a directory. Modify our 'stat(2)' and 'opendir(3)' implementations to handle these quirks. Adds 78-80 bytes. (GitHub issue #597) Signed-off-by: Ron Yorston

win32: avoid problems with forward slashes in path to cmd.exe

2026-06-06T09:55:46+00:00

Running 'C:/Windows/System32/cmd.exe' from the shell was found to have the unxpected result of creating the directory '.exe'. This is due to the weirdness of cmd.exe. A similar problem with batch files was already being handled in `spawnveq()` by converting forward slashes to backslashes in the path to the executable file. Doing this unconditionally will fix the above case too. (GitHub issue #598) Signed-off-by: Ron Yorston

win32: special treatment for mounted volumes

2026-06-04T10:46:40+00:00

It was reported that a mounted volume looked like a broken symlink and that changing to the mount directory failed. Preserve the format of the volume name when resolving the link. Adds 84-96 bytes. (GitHub issue #597) Signed-off-by: Ron Yorston

stty: code shrink

2026-05-26T06:40:19+00:00

The current implementation of 'stty' for Windows only uses a limited subset of the flags in 'struct termios'. Remove some unused features. Saves 16-40 bytes. Signed-off-by: Ron Yorston

win32: fix incorrect change to tcgetattr()

2026-05-22T15:39:33+00:00

Commit a560fdf23 (win32: better handling of console state) changed to using CONIN$/CONOUT$ to handle terminal modes. In tcgetattr() CONOUT$ was used instead of CONIN$, leading to incorrect mode bits being fetched. Saves 8-16 bytes. (GitHub issue #594) Signed-off-by: Ron Yorston

win32: better handling of console state

2026-05-22T07:41:25+00:00

When 'stty size' was run in a command substitution with stderr redirected or 'stty -echo' with stdin redirected, it failed to work properly. The redirections broke its connection to the terminal. To fix this, ioctl/tcsetattr/tcgetattr have been modified to use CONIN$ or CONOUT$ to access the screen buffer. Using CON isn't an adequate substitute in this case. Also, if ioctl(fd, TIOCGWINSZ) fails, set errno. Adds 112-116 bytes. (GitHub issue #594) Signed-off-by: Ron Yorston

win32: allow stat(2) to skip costly check for execute

2026-05-18T06:55:54+00:00

If 'ls' is invoked without the '-l' option (or something that's equivalent) and colour output isn't required, there's no need to perform the expensive check for execute permission. Allow 'ls' to inform stat(2) not to call has_exec_format(). This has been combined with the existing mechanism to enable counting subdirectories. With this change the command 'ls | wc -l' used in issue #589 doesn't perform the test which upset Windows' anti-malware thing. Adds 32-48 bytes. (GitHub issue #589)

reset: add support for stty and Windows Terminal

2026-05-11T12:54:20+00:00

The 'reset' applet hasn't kept pace with developments elsewhere. We now have support for 'stty sane', so the code in 'reset' which calls that can be enabled. Windows 10 and 11 have updated Terminal and Console programs, with varying features and behaviours. Add ANSI emulation code to handle clearing the scrollback buffer and use ANSI sequences in 'reset' to do that. It was also necessary to retain the explicit call to reset_screen(), or 'reset' didn't work properly in the Terminal I'd installed in Windows 10. Adds 92-128 bytes. (GitHub issue #161)