Re: fixing slink boot-floppies for sparc
On Mon, 5 Apr 1999, Eric Delaunay wrote:
> About wrong /dev/fb0 permissions, could someone investigate why X does
> not find the device if not world writable ? I was not able to track it
Alright, I just found the answer. X uses the access() syscall to check to
see if it can access /dev/fb*, and access() uses your _real_ uid/gid, not
your _effective_ uid/gid, so even when it's setuid it's still checking if
_you_ can access /dev/fb*.
I suspect you could play games with set(r)euid(2) here to work around this,
or perhaps fake the access() calls with a stat() and some logic.
> Why X don't use /dev/sunmouse directly then ? And gpm too ?
> This way, no need to manage the symlink.
X and gpm default to /dev/mouse on all platforms, it seems.
> I'm using a french keyboard (latin1 layout) and I cannot switch back to
> virtual consoles. CTRL-ALT + F<n> are inoperant. Any advice ?
It doesn't work here, either. (Type 5, US UNIX layout, 2.2.5-cvs.)
stracing chvt shows the kernel successfully completing the ioctl() to
switch consoles, and then blocking on the "wait for switch to complete"