open x: as DASD not a dir

[KO Myung-Hun]

Hi/2.

open() open x: as a dir. Instead, it would be better to open it as DASD.

[KO Myung-Hun]

patch for dasd open

[bird]

The current idea of mapping "c:" to what on linux would be something like /dev/sda1 is too risky. An unlucky user with thick fingers may easily get overwhelmed by cat c: or killed by cat d: > c: (if permitted).

I would happily add virtual /dev/something aliases for doing DosOpenL("C:", DASD) without additional open() flags as this requires extra typing, instead of less typing on the user part. If there is a free open flag bit, we could also extend open() to do DASD mode for "drive:" style paths, though I'm not sure there is a free bit and we could just as well add a different API since it requires anyone wanting to use the feature to modify her/his code.

[KO Myung-Hun]

It would be good to implement this with /dev/drivex mapping, where x is a, b, c, and so on.

[KO Myung-Hun]

v2 patch for dasd open

[KO Myung-Hun]

This patch opens a drive in DASD mode if the given name is /dev/driveX style. But its real name will be X:. For example, __libc_Back_ioFHToPath returns X: if a given fd was opened with /dev/driveX.